complete GCE eml and custom units question more complete coding

David Blankman dblankman at lternet.edu
Tue Oct 28 07:50:00 PST 2003 

<additionalMetadata>

    <stmml:unitList 
xsi:schemaLocation="http://www.xml-cml.org/schema/stmml 
http://gce-lter.marsci.uga.edu/lter/files/schemas/eml-200/stmml.xsd">

    <!--
note that the unitTypes here are taken from the eml-unitDictionary.xml
-->
    <stmml:unit id="siemensPerMeter" name="siemensPerMeter" 
unitType="conductance" abbreviation="S/m"/>
    </stmml:unitList>
          *<customUnitDescription>Here is where the description text 
would go                     <customUnitDescription/>*
</additionalMetadata>

Wade Sheldon wrote:

> David and Matt,
>  
> Well, I think I have the major issues worked out and managed to 
> completely map my attribute classification system to eml 
> measurementScale and units so I can generate more complete eml from 
> our RDMS (see the attached docs, but ignore the data file url because 
> it's just a proxy for testing). I created a match table relating my 
> datatype (~= storageType), variabletype (~= 
> measurementScale), numericaltype (~= numberType)  and units to eml 
> equivalents. To deal with the units dictionary I wrote a xslt sheet to 
> convert the relevant section of the xml file to tabular format with 1 
> additional bit field to serve as a custom unit flag, and uploaded it 
> to the database. When I need to define a custom unit I add it to this 
> units dictionary table (filling in all relevant stmml:units attribute 
> fields) with the custom bit set, and then the SQL view generates 
> appropriate standardUnit/customUnit tags and a suitable stmml:units 
> fragment to incorporate into the additionalMetadata section (allowing 
> me to automate the incorporation of custom unit definitions using a 
> SELECT DISTINCT approach on a per dataset basis). This was a bit 
> complex to code but is maintainable, because I didn't have to change 
> anything about our current system -- just add eml lookup tables and 1 
> mapping table (plus a form to manage the assignments).
>  
> Not surprisingly, this process shook out some underlying mistakes in 
> my original attribute classifications which I'm going back and 
> cleaning up. I am also still tweaking datetime info to generate 
> appropriate precisions for numerical data 
> component attributes. I'm now setting up the code to 
> dynamically produce eml-described datasets with user-definable 
> delimiters, missing value codes and Q/C flag options. I hope to have 
> that up very soon.
>  
> Now for a brief question: how can I properly include descriptions 
> along with custom unit definitions in the additionalMetadata section? 
> I tried duplicating the format in the unitsDictionary doc using 
> stmml:units opening and closing tags with a description element 
> within, but the docs wouldn't validate until I removed the description 
> and converted to the attribute-only empty tag format. This is a 
> potentially big issue for me, so I'd like to get those descriptions in.
>  
> Regards,
>  
> Wade Sheldon
>  
>  
> P.S. If you want to see any other representative docs, just request 
> provisional eml for any data set in our data catalog and tack on 
> '&detail=full' to the query string. I plan to maintain support for 
> varying levels of metadata detail in case it becomes useful (although 
> I may change the default from 'basic' to 'full' after I'm satisfied 
> with the docs).
>
> _________________
>  
> Wade Sheldon
> Management Information Systems Specialist
> School of Marine Programs
> University of Georgia
> Athens, GA 30602-3636
> http://gce-lter.marsci.uga.edu/lter/bios/wsheldon.htm
>  
> "I love deadlines. I like the whooshing sound they make as they fly 
> by." -- Douglas Adams
>
>------------------------------------------------------------------------
>
><?xml version="1.0" encoding="UTF-8"?>
><eml:eml packageId="PHY-GCEM-0310c1.1.0" system="gce-lter" xmlns:ds="eml://ecoinformatics.org/dataset-2.0.0" xmlns:eml="eml://ecoinformatics.org/eml-2.0.0" xmlns:stmml="http://www.xml-cml.org/schema/stmml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="eml://ecoinformatics.org/eml-2.0.0 http://gce-lter.marsci.uga.edu/lter/files/schemas/eml-200/eml.xsd">
><dataset>
><title>September 2003 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Altamaha River transect</title>
><creator>
><individualName>
><salutation>Dr.</salutation>
><givenName>Daniela</givenName>
><surName>Di Iorio</surName>
></individualName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>daniela at uga.edu</electronicMailAddress>
><onlineUrl>http://www.marsci.uga.edu/FacultyPages/Daniela/daniela.html</onlineUrl>
></creator>
><associatedParty>
><individualName>
><salutation>Mr.</salutation>
><givenName>KiRyong</givenName>
><surName>Kang</surName>
></individualName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>krkang at uga.edu</electronicMailAddress>
><role>co-author</role>
></associatedParty>
><abstract>
><para>Four hydrographic surveys were performed on September 26, 2003, along an east-to-west transect up the Altamaha River in Georgia (Altamaha River Transect, GCE-AL). Vertical CTD profiles were collected at 2km intervals from the -4km to 26km upriver along the transect during various tidal regimes. Conductivity, temperature, pressure and optical backscatter were measured, and depth, salinity and sigma-t were calculated for each profile. Data values collected on the upcast were deleted, and the remaining data were averaged within 0.5m depth bins and interpolated to produce a smooth profile for contouring. This data set was collected as part of the Georgia Coastal Ecosystems LTER quarterly hydrographic monitoring program.</para>
></abstract>
><keywordSet>
><keyword>GCE</keyword>
><keyword>LTER</keyword>
><keyword>Inorganic Fluxes</keyword>
><keyword>chlorophyll</keyword>
><keyword>conductivity</keyword>
><keyword>ctd</keyword>
><keyword>pressure</keyword>
><keyword>salinity</keyword>
><keyword>sigma-t</keyword>
><keyword>temperature</keyword>
></keywordSet>
><intellectualRights>
><para>All publications based on this data set must cite the contributor and Georgia Coastal Ecosystems LTER project, and two copies of the manuscript must be submitted to the GCE-LTER Information Management Office.</para>
></intellectualRights>
><distribution>
><online>
><url>http://gce-lter.marsci.uga.edu/lter/asp/db/dataset_details.asp?PHY-GCEM-0310c1</url>
></online>
></distribution>
><coverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE-AL -- Altamaha River, Georgia, USA.  Altamaha River transect used for GCE quarterly hydrographic monitoring surveys.  Nominal profiling stations are defined every 2km from -4km to 40km (relative to station 0km at the line of demarcation), based on an estimated Thalweg line running up the main river channel.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.582311</westBoundingCoordinate>
><eastBoundingCoordinate>-81.237936</eastBoundingCoordinate>
><northBoundingCoordinate>31.401403</northBoundingCoordinate>
><southBoundingCoordinate>31.296034</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><temporalCoverage>
><singleDateTime>
><calendarDate>2003-09-26</calendarDate>
></singleDateTime>
></temporalCoverage>
></coverage>
><contact><positionName>GCE-LTER Information Manager</positionName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>gcelter at uga.edu</electronicMailAddress>
></contact>
><methods>
><methodStep>
><description>
><para>The CTD instrument package was mounted inside an open stainless steel frame and deployed from the deck of the R/V Savannah (UNOLS vessel, Skidaway Institute of Oceanography) using a hydrographic winch fitted with Kevlar(R) line.  The CTD was lowered to just below the water surface and allowed to equilibrate for 45-60 seconds, then lowered at approximately 1 m/s until the frame touched bottom.  Data was collected via telemetry cables in real time at 2-4 Hz and logged to a shipboard computer.  Data was also logged to the internal CTD datalogger at 8 Hz and periodically downloaded to a shipboard computer.</para>
></description>
><instrumentation>SBE 25 Sealogger CTD (#250) Conductivity Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: 4C 6800m); parameter: conductivity (accuracy: 0.0003 S/m, readability: 0.00004 S/m, range: 0 to 7 S/m); last calibration: Sep 11, 2001</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) Fluorometer; manufacturer: WETLabs (model: WETStar); parameter: chlorophyll-a fluorescence (range: 0.03-150 µg/L); last calibration: Sep 21, 2001</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) Optical Back Scatter Sensor; manufacturer: D&amp;A Instruments (model: OBS-3); parameter: optical backscatter (turbidity) (range: 1-3000 mg/L sediment, 1-1500 NTU)</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) Oxygen Sensor; manufacturer: Sea-Bird Electronics (model: SBE 43); parameter: oxygen concentration (accuracy: 2% of saturation, range: 0-120% of surface saturation); last calibration: Sep 25, 2001</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) PAR Sensor; manufacturer: Li-Cor (model: LI-193SA); parameter: PAR; last calibration: Sep 26, 2001</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) Pressure Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: SBE 29 (PAINE 211-75-710-03)); parameter: pressure (accuracy: 0.25%, range: 0-1000 psia); last calibration: Sep 07, 2001</instrumentation>
><instrumentation>SBE 25 Sealogger CTD (#250) Temperature Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: 3F 6800m); parameter: temperature (accuracy: +/-0.001°C, range: -5.0°C to +35°C); last calibration: Sep 08, 2001</instrumentation>
></methodStep>
><methodStep>
><description>
><para>The CTD instrument package was deployed from the deck of the R/V Salty Dawg (University of Georgia Marine Institute) using a hand winch fitted with Kevlar(R) line.  The CTD was lowered to just below the water surface and allowed to equilibrate for 45-60 seconds, then lowered at approximately 0.25-0.5m/s to within 1m of the bottom. Data was stored using an internal data logger, and uploaded to a shipboard computer at the end of each transect.</para>
></description>
><instrumentation>SEACAT SBE 19 CTD (#1234) Conductivity Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: SBE 19-03); parameter: conductivity (range: standard seawater); last calibration: Apr 07, 1993</instrumentation>
><instrumentation>SEACAT SBE 19 CTD (#1234) PAR Sensor; manufacturer: Li-Cor (model: LI-193SA); parameter: PAR; last calibration: Jun 15, 1993</instrumentation>
><instrumentation>SEACAT SBE 19 CTD (#1234) Pressure Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: PAINE 211-75-710-01); parameter: pressure (accuracy: 0.15%, range: 0-300 psia); last calibration: Apr 13, 1993</instrumentation>
><instrumentation>SEACAT SBE 19 CTD (#1234) Temperature Sensor; manufacturer: Sea-Bird Electronics, Inc. (model: SBE 19-03); parameter: temperature (range: -5.0 to +35.0°C); last calibration: Apr 07, 1993</instrumentation>
></methodStep>
><methodStep>
><description>
><para>Raw profile data were processed using Sea-Bird Electronics DATACNV program (www.seabird.com) to convert instrument readings to calibrated data and to calculate derived parameters (i.e. depth from pressure; salinity, density and sigma-t from conductivity, temperature and pressure; oxygen saturation from dissolved oxygen). The data then underwent a quality control process, which included removal of the soaking time period, removal of decreasing pressure during the profile due to ship and wave motion, removal of the upcast information (i.e. data after the instrument has hit bottom), removal of spikes in any of the parameters, application of flow-through time delays for the oxygen (0.5 s) and fluormeter (3.75 s) sensors, calculation of PAR depth to account for the physical separation between the PAR and pressure sensors (~0.75m). The quality control operations were performed using custom Matlab programs developed by D. DiIorio and K. Kang.</para>
></description>
></methodStep>
><methodStep>
><description>
><para>After post-processing, a subset of profile parameters (depth, temperature, conductivity, salinity, density, sigma-t, suspended particulates) were averaged over 0.5 m depth bins starting at 0.25m below the surface. The fast sampling of the CTD (8Hz) together with the profile speed (~1m/s) resulted in approximately 5 samples in this average. Linear interpolation was then carried out using custom Matlab programs developed by D. DiIorio and K. Kang to produce estimated values at exact depth increments of 0.5m starting at 1.0m depth below the surface.</para>
></description>
></methodStep>
></methods>
><project><title>Georgia Coastal Ecosystems LTER Project</title>
><personnel>
><individualName>
><givenName>Steven</givenName>
><givenName>C.</givenName>
><surName>Pennings</surName>
></individualName>
><role>principalInvestigator</role>
></personnel>
><personnel>
><individualName>
><givenName>James</givenName>
><givenName>T.</givenName>
><surName>Hollibaugh</surName>
></individualName>
><role>principalInvestigator</role>
></personnel>
><abstract>
><para>We propose to establish a Long Term Ecological Research site on the central Georgia coast in the vicinity of Sapelo Island. This is a barrier island and marsh complex with the Altamaha River, one of the largest and least developed rivers on the east coast of the US, as the primary source of fresh water. The proposed study would investigate the linkages between local and distant upland areas mediated by water - surface water and ground water - delivery to the coastal zone. We would explicitly examine the relationship between variability in environmental factors driven by river flow, primarily salinity because we can measure it at high frequency, and ecosystem processes and structure. We will accomplish this by comparing estuary/marsh complexes separated from the Altamaha River by one or two lagoonal estuary/marsh complexes that damp and attenuate the river signal. This spatial gradient is analogous to the temporal trend in riverine influence expected as a result of development in the watershed. We will implement a monitoring system that documents physical and biological variables and use the time trends and spatial distributions of these variables and of their variance structure to address questions about the factors controlling distributions, trophic structure, diversity, and biogeochemistry. An existing GIS-based hydrologic model will be modified to incorporate changes in river water resulting from changes in land use patterns that can be expected as the watershed develops. This model will be linked to ecosystem models and will serve as an heuristic and management tool. Another consequence of coastal development is that as river flow decreases, groundwater flow increases and becomes nutrified. We will compare the effects of ground water discharge from the surficial aquifer in relatively pristine (Sapelo Island) versus more urbanized (mainland) sites to assess the relative importance of fresh water versus nutrients to productivity, structure and biomass turnover rate in marshes influenced by groundwater. We will also investigate the effect of marine processes (tides, storm surge) on mixing across the fresh/salt interface in the surficial aquifer. Additional physical studies will relate the morphology of salt marsh - tidal creek channel complexes to tidal current distributions and exchange. These findings will be incorporated into a physical model that will be coupled to an existing ecosystem model. The land/ocean margin ecosystem lies at the interface between two ecosystems in which distinctly different groups of decomposers control organic matter degradation. The terrestrial ecosystem is largely dominated by fungal decomposers, while bacterial decomposers dominate the marine ecosystem. Both groups are important in salt marsh-dominated ecosystems. Specific studies will examine, at the level of individual cells and hyphae, the relationship bacteria and fungi in the consortia that decompose standing dead Spartina and other marsh plants and examine how, or if, this changes along the salinity gradient.</para>
></abstract>
><funding>
><para>This material is based upon work supported by the National Science Foundation under Cooperative Agreement #OCE-9982133 (May 2000 to May 2006). Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.</para>
></funding>
></project>
><dataTable>
><entityName>PHY-GCEM-0310c1.CSV</entityName>
><physical>
><objectName>PHY-GCEM-0310c1.CSV</objectName>
><size unit="rows">343</size>
><characterEncoding>ASCII</characterEncoding>
><dataFormat>
><textFormat>
><numHeaderLines>1</numHeaderLines>
><numFooterLines>0</numFooterLines>
><recordDelimiter>\t</recordDelimiter>
><numPhysicalLinesPerRecord>1</numPhysicalLinesPerRecord>
><attributeOrientation>column</attributeOrientation>
><simpleDelimited>
><fieldDelimiter>\t</fieldDelimiter>
></simpleDelimited>
></textFormat>
></dataFormat>
></physical>
><attributeList>
><attribute>
><attributeName>Year</attributeName>
><attributeDefinition>Calendar year</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><datetime>
><formatString>YYYY</formatString>
><dateTimePrecision>1</dateTimePrecision>
><dateTimeDomain/>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Month</attributeName>
><attributeDefinition>Calendar month</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><datetime>
><formatString>MM</formatString>
><dateTimePrecision>1</dateTimePrecision>
><dateTimeDomain>
><bounds>
><minimum exclusive="false">1</minimum>
><maximum exclusive="false">12</maximum>
></bounds>
></dateTimeDomain>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Day</attributeName>
><attributeDefinition>Calendar day</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><datetime>
><formatString>DD</formatString>
><dateTimePrecision>1</dateTimePrecision>
><dateTimeDomain>
><bounds>
><minimum exclusive="false">1</minimum>
><maximum exclusive="false">366</maximum>
></bounds>
></dateTimeDomain>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Hour</attributeName>
><attributeDefinition>Fractional hours GMT</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><datetime>
><formatString>hh</formatString>
><dateTimePrecision>1</dateTimePrecision>
><dateTimeDomain>
><bounds>
><minimum exclusive="false">0</minimum>
><maximum exclusive="false">24</maximum>
></bounds>
></dateTimeDomain>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Longitude</attributeName>
><attributeDefinition>Geographic longitude</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><interval>
><unit>
><standardUnit>degree</standardUnit>
></unit>
><precision>0.00001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">-180</minimum>
><maximum exclusive="false">180</maximum>
></bounds>
></numericDomain>
></interval>
></measurementScale>
></attribute>
><attribute>
><attributeName>Latitude</attributeName>
><attributeDefinition>Geographic latitude</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><interval>
><unit>
><standardUnit>degree</standardUnit>
></unit>
><precision>0.00001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">-90</minimum>
><maximum exclusive="false">90</maximum>
></bounds>
></numericDomain>
></interval>
></measurementScale>
></attribute>
><attribute>
><attributeName>Depth_Total</attributeName>
><attributeDefinition>Water column depth measured by shipboard SONAR</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>meter</standardUnit>
></unit>
><precision>0.01</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>RealTime</attributeName>
><attributeDefinition>Real-time profile data flag (low frequency data collection rate)</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><interval>
><unit>
><standardUnit>dimensionless</standardUnit>
></unit>
><precision> 1</precision>
><numericDomain>
><numberType>integer</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
><maximum exclusive="false">1</maximum>
></bounds>
></numericDomain>
></interval>
></measurementScale>
></attribute>
><attribute>
><attributeName>Filename</attributeName>
><attributeDefinition>CTD cast filename</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>CTD cast filename</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>CTD</attributeName>
><attributeDefinition>ID number of CTD instrument used for the cast</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><ordinal>
><nonNumericDomain>
><enumeratedDomain>
><codeDefinition>
><code>250</code>
><definition>DiIorio SBE25 CTD</definition>
></codeDefinition>
><codeDefinition>
><code>1234</code>
><definition>UGA Marine Sciences SBE19 CTD</definition>
></codeDefinition>
></enumeratedDomain>
></nonNumericDomain>
></ordinal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Station</attributeName>
><attributeDefinition>GCE-LTER sampling station</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>GCE-LTER sampling station</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Survey</attributeName>
><attributeDefinition>Nominal survey</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>Nominal survey</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Cast</attributeName>
><attributeDefinition>CTD cast number</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>CTD cast number</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Depth</attributeName>
><attributeDefinition>Water depth at pressure sensor</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>meter</standardUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Temperature</attributeName>
><attributeDefinition>Water temperature</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>celsius</standardUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Conductivity</attributeName>
><attributeDefinition>Conductivity</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><customUnit>siemensPerMeter</customUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Salinity</attributeName>
><attributeDefinition>Salinity</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>dimensionless</standardUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Density</attributeName>
><attributeDefinition>Water density</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>kilogramPerCubicMeter</standardUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Sigma_t</attributeName>
><attributeDefinition>Sigma-t (i.e. (Water Density-1)*1000)</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>kilogramPerCubicMeter</standardUnit>
></unit>
><precision>0.001</precision>
><numericDomain>
><numberType>real</numberType>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>OBS</attributeName>
><attributeDefinition>Optical back-scatter</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>dimensionless</standardUnit>
></unit>
><precision>0.01</precision>
><numericDomain>
><numberType>real</numberType>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
></attributeList>
></dataTable>
></dataset>
><additionalMetadata>
><stmml:unitList xmlns:stmml="http://www.xml-cml.org/schema/stmml" xsi:schemaLocation="http://www.xml-cml.org/schema/stmml http://gce-lter.marsci.uga.edu/lter/files/schemas/eml-200/stmml.xsd">
><!--note that the unitTypes here are taken from the eml-unitDictionary.xml-->
><stmml:unit id="siemensPerMeter" name="siemensPerMeter" unitType="conductance" abbreviation="S/m" />
></stmml:unitList>
></additionalMetadata>
></eml:eml>
>  
>
>------------------------------------------------------------------------
>
><?xml version="1.0" encoding="UTF-8"?>
><eml:eml packageId="PHP-GCEM-0302d.1.0" system="gce-lter" xmlns:ds="eml://ecoinformatics.org/dataset-2.0.0" xmlns:eml="eml://ecoinformatics.org/eml-2.0.0" xmlns:stmml="http://www.xml-cml.org/schema/stmml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="eml://ecoinformatics.org/eml-2.0.0 http://gce-lter.marsci.uga.edu/lter/files/schemas/eml-200/eml.xsd">
><dataset>
><title>September 2002 surface water phytoplankton productivity for 10 Georgia Coastal Ecosystems LTER sampling sites</title>
><creator>
><individualName>
><salutation>Dr.</salutation>
><givenName>Robert</givenName>
><givenName>E.</givenName>
><surName>Hodson</surName>
></individualName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>rhodson at uga.edu</electronicMailAddress>
></creator>
><associatedParty>
><individualName>
><salutation>Ms.</salutation>
><givenName>Xiaozhen</givenName>
><surName>Mou</surName>
></individualName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>xiaozhen at uga.edu</electronicMailAddress>
><role>co-author</role>
></associatedParty>
><associatedParty>
><individualName>
><salutation>Mr.</salutation>
><givenName>Edward</givenName>
><surName>Sheppard</surName>
></individualName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>sheppard at uga.edu</electronicMailAddress>
><role>co-author</role>
></associatedParty>
><abstract>
><para>Water samples were collected by Niskin bottle or by hand from just beneath the surface during low tide surveys at or near 10 GCE-LTER sampling sites in September 2002. The incorporation of radiolabelled bicarbonate in response to varying levels of illumination was measured using a photosynthetron apparatus. Photosynthesis-irradiance (P-I) curves constructed from these measurements will be used in conjunction with algal biomass and PAR versus depth measurements to estimate instantaneous gross primary production in the water at each GCE sampling site. This study was part of the GCE-LTER hydrographic monitoring program, and will be repeated quarterly.</para>
></abstract>
><keywordSet>
><keyword>GCE</keyword>
><keyword>LTER</keyword>
><keyword>Primary Production</keyword>
><keyword>bicarbonate</keyword>
><keyword>carbon</keyword>
><keyword>light</keyword>
><keyword>PAR</keyword>
><keyword>photosynthesis</keyword>
><keyword>phytoplankton</keyword>
><keyword>productivity</keyword>
></keywordSet>
><intellectualRights>
><para>All publications based on this data set must cite the contributor and Georgia Coastal Ecosystems LTER project, and two copies of the manuscript must be submitted to the GCE-LTER Information Management Office.</para>
></intellectualRights>
><distribution>
><online>
><url>http://gce-lter.marsci.uga.edu/lter/asp/db/dataset_details.asp?PHP-GCEM-0302d</url>
></online>
></distribution>
><coverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE1 -- Eulonia, Georgia, USA.  Transitional salt marsh/upland forest site at the upper reach of the Sapelo River near Eulonia, Georgia. The main marsh area is to the north of the channel where the upland is controlled by DNR. Several small creeks lie within the study area.  Residential development is increasing on the upland areas south of the channel. A hydrographic sonde is deployed within this site attached to a private dock to the south of the main channel near the HW-17 bridge.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.427321</westBoundingCoordinate>
><eastBoundingCoordinate>-81.410390</eastBoundingCoordinate>
><northBoundingCoordinate>31.546173</northBoundingCoordinate>
><southBoundingCoordinate>31.535095</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE2 -- Four Mile Island, Georgia, USA.  Low salt marsh/estuary site encompassing the southwestern end of Four Mile Island and the Sapelo River near Sapelo Sound. The large island is totally marsh, with no upland, and no development. Nearby areas, like "Sutherland Bluff", are developing with golf courses. A hydrographic sonde is deployed within this site attached to channel marker 4 (under U.S. Coast Guard permit). Salinity regime is similar to seawater.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.320771</westBoundingCoordinate>
><eastBoundingCoordinate>-81.293259</eastBoundingCoordinate>
><northBoundingCoordinate>31.550249</northBoundingCoordinate>
><southBoundingCoordinate>31.532138</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE3 -- North Sapelo, Sapelo Island, Georgia, USA.  High salinity marsh/Sapelo Sound site.  Few or no small creeks, but one large creek is easily accessed. Further upstream upland drainage is affected by culvert at Reynolds' duck pond. Upland is heavily forested. Hydrographic sonde is deployed adjacent to this site attached to a channel marker (under U.S. Coast Guard permit). A huge mud flat is present at the northern tip of Sapelo Island.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.232911</westBoundingCoordinate>
><eastBoundingCoordinate>-81.194083</eastBoundingCoordinate>
><northBoundingCoordinate>31.547261</northBoundingCoordinate>
><southBoundingCoordinate>31.515840</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE4 -- Meridian, Georgia, USA.  Inland marsh and tidal creek site near Meridian, Georgia. The primary marsh site is to the south of the dock in front of the Sapelo Island Visitor Center. Some small creeks and one large creek (Hudson Creek) are present. Upland is heavily forested. Marsh to the north of the dock can be used for additional studies if larger areas are required. Upland to the North is being developed for residential use, so future access is uncertain. The USGS super station site (weather station plus multiple-sensor sonde) is deployed off the ferry dock. Salinity is similar to seawater because there is little freshwater input from the upland.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.370812</westBoundingCoordinate>
><eastBoundingCoordinate>-81.358187</eastBoundingCoordinate>
><northBoundingCoordinate>31.462771</northBoundingCoordinate>
><southBoundingCoordinate>31.447213</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE5 -- Folly River, Georgia, USA.  Salt marsh/tidal creek site at the Folly River near Doboy Sound.  No upland areas present. The north side of Doboy Sound immediately opposite is similar, but creeks are not as nice. No existing markers are close enough for sonde deployment, so we will initially use the existing sonde at Marsh Landing operated by UGAMI for surrogate hydrographic data.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.354636</westBoundingCoordinate>
><eastBoundingCoordinate>-81.327494</eastBoundingCoordinate>
><northBoundingCoordinate>31.442310</northBoundingCoordinate>
><southBoundingCoordinate>31.418161</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE6 -- Dean Creek, Sapelo Island, Georgia, USA.  Doboy Sound/salt marsh site at the southern end of Sapelo Island near Dean Creek and the Sapelo lighthouse.  A few small creeks are present, but a large creek (Dean Creek) is easily accessed. Upland is composed of small hammocks and some constructed causeways, with sand dune complexes east of Dean Creek and extending to the beach. Upper end of the watershed is affected by a culvert at Beach Road and heavy student use of marsh immediately adjacent to culvert. A hydrographic sonde is deployed in Doboy Sound near Commodore Island approximately 1.5km from this site. GCE6 is also the focus of Sapelo Island Microbial Observatory research on microbial diversity  and  genomics (http://simo.marsci.uga.edu)</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.300786</westBoundingCoordinate>
><eastBoundingCoordinate>-81.264957</eastBoundingCoordinate>
><northBoundingCoordinate>31.393522</northBoundingCoordinate>
><southBoundingCoordinate>31.371279</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE7 -- Carrs Island, Georgia, USA.  Freshwater marsh site along the northern bank of Hammersmith Creek at the south end of Carrs Island. Upland area is heavily forested. Northern 3/4 of the island was diked for rice agriculture, but the southern 1/4 is undisturbed. A hydrographic sonde is deployed in the Altamaha River near Hammersmith Creek, adjacent to this site.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.494228</westBoundingCoordinate>
><eastBoundingCoordinate>-81.475991</eastBoundingCoordinate>
><northBoundingCoordinate>31.349002</northBoundingCoordinate>
><southBoundingCoordinate>31.334587</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE8 -- Alligator Creek, Georgia, USA.  Mid-estuary/salt marsh site on the west side of Friday Cap Creek along the Altamaha River. This is a brackish marsh with salinities around 14 PSU during drought, less than 5 PSU normally. A hydrographic sonde is deployed adjacent to this site in the Altamaha River near Alligator Creek, attached to the US Coast Guard Daymarker 2 pilings.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.426316</westBoundingCoordinate>
><eastBoundingCoordinate>-81.410043</eastBoundingCoordinate>
><northBoundingCoordinate>31.317771</northBoundingCoordinate>
><southBoundingCoordinate>31.303976</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE9 -- Rockdedundy Island, Georgia, USA.  Lower estuary tidal creek and marsh site at Rockdedundy Island west of Wolf Island. A hydrographic sonde is deployed approximately 2km from this site in the Altamaha River near Rockdedundy Island, attached to the US Coast Guard Daymarker 201 pilings.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.346982</westBoundingCoordinate>
><eastBoundingCoordinate>-81.326749</eastBoundingCoordinate>
><northBoundingCoordinate>31.358146</northBoundingCoordinate>
><southBoundingCoordinate>31.339162</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA.  Barrier island/marsh site on western Sapelo Island.  This site is located at the upper reaches of the Duplin River, and is within the Sapelo Island National Estuarine Research Reserve. Existing well fields border small marsh area to northwest, some wells have been installed to south end of hammock where marsh is more extensive and permanent plots are located. Two existing hydrographic sondes and weather stations within this site are operated by SINERR (Hunt Camp dock) and UGAMI (flume dock).</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.296229</westBoundingCoordinate>
><eastBoundingCoordinate>-81.261288</eastBoundingCoordinate>
><northBoundingCoordinate>31.497780</northBoundingCoordinate>
><southBoundingCoordinate>31.464728</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE-SP -- Sapelo River, Georgia, USA.  Sapelo River transect used for GCE quarterly hydrographic monitoring surveys.  Nominal profiling stations are defined every 3-4km from 0km to 36km (relative to station 0km at the line of demarcation), based on an estimated Thalweg line running up the main river channel.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.431980</westBoundingCoordinate>
><eastBoundingCoordinate>-81.154122</eastBoundingCoordinate>
><northBoundingCoordinate>31.559628</northBoundingCoordinate>
><southBoundingCoordinate>31.516636</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><geographicCoverage>
><geographicDescription>GCE Study Site GCE-AL -- Altamaha River, Georgia, USA.  Altamaha River transect used for GCE quarterly hydrographic monitoring surveys.  Nominal profiling stations are defined every 2km from -4km to 40km (relative to station 0km at the line of demarcation), based on an estimated Thalweg line running up the main river channel.</geographicDescription>
><boundingCoordinates>
><westBoundingCoordinate>-81.582311</westBoundingCoordinate>
><eastBoundingCoordinate>-81.237936</eastBoundingCoordinate>
><northBoundingCoordinate>31.401403</northBoundingCoordinate>
><southBoundingCoordinate>31.296034</southBoundingCoordinate>
></boundingCoordinates>
></geographicCoverage>
><temporalCoverage>
><rangeOfDates>
><beginDate>
><calendarDate>2002-09-16</calendarDate>
></beginDate>
><endDate>
><calendarDate>2002-09-19</calendarDate>
></endDate>
></rangeOfDates>
></temporalCoverage>
></coverage>
><contact><positionName>GCE-LTER Information Manager</positionName>
><address>
><deliveryPoint>Dept. of Marine Sciences</deliveryPoint>
><deliveryPoint>University of Georgia</deliveryPoint>
><city>Athens</city>
><administrativeArea>Georgia</administrativeArea>
><postalCode>30602-3636</postalCode>
><country>USA</country>
></address>
><electronicMailAddress>gcelter at uga.edu</electronicMailAddress>
></contact>
><methods>
><methodStep>
><description>
><para>Water samples from the R/V Savannah were collected approximately 1 meter below the surface using a niskin bottle.  The water sample was then transferred to Brown 1 L Nalgene bottles. Bottles were first rinced once with approximately 100 ml of sample water prior to filling.  Surface samples collected from the R/V Salty Dawg and Carolina Skiff were collected by hand approximately 0.5 meters below the surface of the water using a Brown 1 L Nalgene bottle once rinsed with sample water.</para>
></description>
></methodStep>
><methodStep>
><description>
><para>The intensity of photosynthetically-available radation (PAR) at each vial position was checked with a light meter before and after each day&apos;s run. Prior to each sample incubation the temperature of the circulating water batch was set to the ambient site temperature and the cooling fan and light bulbs were checked for problems.</para>
></description>
><instrumentation>Quantum Scalar Irradiance Meter; manufacturer: Biospherical Instruments Inc. (model: QSL 101 A1); parameter: PAR (photosynthetically-available radiation)</instrumentation>
><instrumentation>Photosynthetron; manufacturer: CHPT (Composite High Pressure Technology) (model: Custom design by Hugh MacIntyre, Horn Point Laboratory, PO Box 775, Cambridge, MD  21613)</instrumentation>
></methodStep>
><methodStep>
><description>
><para>35 ml of unfiltered sample was placed in a 50 ml polycarbonate centrifuge tube and spiked with 50 µl of 14C bicarbonate (58 mCi/mmol; ICN Biomedical; Catalog #17441H) using a Hamilton syringe. The tube was then capped and the sample mixed by inverting the tube gently several times. The spiked sample was poured into a 100 ml borosilicate beaker and drawn up in a 50 ml Eppendorf repeating pipettor, and 1 ml was dispensed into each of 24 sample vials (7 ml borosilicate glass scintillation vials) and 3 total count vials (7 ml scintillation vials containing 200 µl Phenylethylamine; Sigma Chemical Catalog #P6251). The total count vials were capped and refrigerated, and the sample vials were capped and placed into corresponding positions of the Photosynthetron. The Photosynthetron was then turned on the the samples were incubated for 1 hr. After incubation samples were uncapped, killed with 200 µl 6N HCl, shaken for at least 2 hr to drive off unincorporated bicarbonate, and then capped for transport to the laboratory in Athens, Georgia. After transport, liquid scintillation cocktail (Bio-Safe II, Research Products International) was added to each total count and sample vial, and the activity of 14C measured in a liquid scintillation counter (Beckman LS6500) for 5 minutes using a single-labeled 14C program.</para>
></description>
><instrumentation>Liquid Scintillation Counter; manufacturer: Beckman (model: LS 6500); parameter: DPM (disintegrations per minute)</instrumentation>
></methodStep>
></methods>
><project><title>Georgia Coastal Ecosystems LTER Project</title>
><personnel>
><individualName>
><givenName>Steven</givenName>
><givenName>C.</givenName>
><surName>Pennings</surName>
></individualName>
><role>principalInvestigator</role>
></personnel>
><personnel>
><individualName>
><givenName>James</givenName>
><givenName>T.</givenName>
><surName>Hollibaugh</surName>
></individualName>
><role>principalInvestigator</role>
></personnel>
><abstract>
><para>We propose to establish a Long Term Ecological Research site on the central Georgia coast in the vicinity of Sapelo Island. This is a barrier island and marsh complex with the Altamaha River, one of the largest and least developed rivers on the east coast of the US, as the primary source of fresh water. The proposed study would investigate the linkages between local and distant upland areas mediated by water - surface water and ground water - delivery to the coastal zone. We would explicitly examine the relationship between variability in environmental factors driven by river flow, primarily salinity because we can measure it at high frequency, and ecosystem processes and structure. We will accomplish this by comparing estuary/marsh complexes separated from the Altamaha River by one or two lagoonal estuary/marsh complexes that damp and attenuate the river signal. This spatial gradient is analogous to the temporal trend in riverine influence expected as a result of development in the watershed. We will implement a monitoring system that documents physical and biological variables and use the time trends and spatial distributions of these variables and of their variance structure to address questions about the factors controlling distributions, trophic structure, diversity, and biogeochemistry. An existing GIS-based hydrologic model will be modified to incorporate changes in river water resulting from changes in land use patterns that can be expected as the watershed develops. This model will be linked to ecosystem models and will serve as an heuristic and management tool. Another consequence of coastal development is that as river flow decreases, groundwater flow increases and becomes nutrified. We will compare the effects of ground water discharge from the surficial aquifer in relatively pristine (Sapelo Island) versus more urbanized (mainland) sites to assess the relative importance of fresh water versus nutrients to productivity, structure and biomass turnover rate in marshes influenced by groundwater. We will also investigate the effect of marine processes (tides, storm surge) on mixing across the fresh/salt interface in the surficial aquifer. Additional physical studies will relate the morphology of salt marsh - tidal creek channel complexes to tidal current distributions and exchange. These findings will be incorporated into a physical model that will be coupled to an existing ecosystem model. The land/ocean margin ecosystem lies at the interface between two ecosystems in which distinctly different groups of decomposers control organic matter degradation. The terrestrial ecosystem is largely dominated by fungal decomposers, while bacterial decomposers dominate the marine ecosystem. Both groups are important in salt marsh-dominated ecosystems. Specific studies will examine, at the level of individual cells and hyphae, the relationship bacteria and fungi in the consortia that decompose standing dead Spartina and other marsh plants and examine how, or if, this changes along the salinity gradient.</para>
></abstract>
><funding>
><para>This material is based upon work supported by the National Science Foundation under Cooperative Agreement #OCE-9982133 (May 2000 to May 2006). Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.</para>
></funding>
></project>
><dataTable>

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><attributeList>
><attribute>
><attributeName>Date</attributeName>
><attributeDefinition>Sample collection date</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><datetime>
><formatString>DD-WWW-YYYY</formatString>
><dateTimePrecision>1</dateTimePrecision>
><dateTimeDomain/>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Time</attributeName>
><attributeDefinition>Sample collection time (GMT)</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><datetime>
><formatString>hh:mmZ</formatString>
><dateTimePrecision>
></dateTimePrecision>
><dateTimeDomain/>
></datetime>
></measurementScale>
></attribute>
><attribute>
><attributeName>Latitude</attributeName>
><attributeDefinition>Geographic latitude of sampling location`</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><interval>
><unit>
><standardUnit>degree</standardUnit>
></unit>
><precision>0.00001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">-90</minimum>
><maximum exclusive="false">90</maximum>
></bounds>
></numericDomain>
></interval>
></measurementScale>
></attribute>
><attribute>
><attributeName>Longitude</attributeName>
><attributeDefinition>Geographic longitude of sampling location</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><interval>
><unit>
><standardUnit>degree</standardUnit>
></unit>
><precision>0.00001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">-180</minimum>
><maximum exclusive="false">180</maximum>
></bounds>
></numericDomain>
></interval>
></measurementScale>
></attribute>
><attribute>
><attributeName>Site</attributeName>
><attributeDefinition>Nearest GCE-LTER sampling site number</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><ordinal>
><nonNumericDomain>
><enumeratedDomain>
><codeDefinition>
><code>1</code>
><definition>GCE1</definition>
></codeDefinition>
><codeDefinition>
><code>2</code>
><definition>GCE2</definition>
></codeDefinition>
><codeDefinition>
><code>3</code>
><definition>GCE3</definition>
></codeDefinition>
><codeDefinition>
><code>4</code>
><definition>GCE4</definition>
></codeDefinition>
><codeDefinition>
><code>5</code>
><definition>GCE5</definition>
></codeDefinition>
><codeDefinition>
><code>6</code>
><definition>GCE6</definition>
></codeDefinition>
><codeDefinition>
><code>7</code>
><definition>GCE7</definition>
></codeDefinition>
><codeDefinition>
><code>8</code>
><definition>GCE8</definition>
></codeDefinition>
><codeDefinition>
><code>9</code>
><definition>GCE9</definition>
></codeDefinition>
><codeDefinition>
><code>10</code>
><definition>GCE10</definition>
></codeDefinition>
><codeDefinition>
><code>14</code>
><definition>GCE-AL</definition>
></codeDefinition>
></enumeratedDomain>
></nonNumericDomain>
></ordinal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Vessel</attributeName>
><attributeDefinition>Vessel used to obtain the sample</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><enumeratedDomain>
><codeDefinition>
><code>SAV</code>
><definition>R/V Sanannah (Skidaway Institute of Oceanography)</definition>
></codeDefinition>
><codeDefinition>
><code>Skiff</code>
><definition>T/T R/V Savannah (Skidaway Institute of Oceanography)</definition>
></codeDefinition>
><codeDefinition>
><code>SD</code>
><definition>R/V Salty Dawg (University of Georgia)</definition>
></codeDefinition>
><codeDefinition>
><code>Avon</code>
><definition>R/V Savannah inflatable run-about</definition>
></codeDefinition>
><codeDefinition>
><code>none</code>
><definition>no vessel (land-based sample)</definition>
></codeDefinition>
></enumeratedDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>CTD_Cast</attributeName>
><attributeDefinition>Corresponding CTD cast</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>Corresponding CTD cast</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Depth_Sampled</attributeName>
><attributeDefinition>Nominal sampling depth</attributeDefinition>
><storageType>string</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><enumeratedDomain>
><codeDefinition>
><code>S</code>
><definition>surface</definition>
></codeDefinition>
><codeDefinition>
><code>B</code>
><definition>bottom</definition>
></codeDefinition>
></enumeratedDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>Temperature</attributeName>
><attributeDefinition>Water temperature at the sampling location</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>celsius</standardUnit>
></unit>
><precision>0.1</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">-2</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Salinity</attributeName>
><attributeDefinition>Salinity at the sampling location</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><standardUnit>dimensionless</standardUnit>
></unit>
><precision>0.1</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>Position</attributeName>
><attributeDefinition>Position of the tube in the Photosynthetron</attributeDefinition>
><storageType>integer</storageType>
><measurementScale>
><nominal>
><nonNumericDomain>
><textDomain>
><definition>Position of the tube in the Photosynthetron</definition>
></textDomain>
></nonNumericDomain>
></nominal>
></measurementScale>
></attribute>
><attribute>
><attributeName>PAR_Intensity</attributeName>
><attributeDefinition>Light intensity at the photosynthetron position</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><customUnit>microEinsteinsPerSquareMeterPerSecond</customUnit>
></unit>
><precision>0.1</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
><maximum exclusive="false">16600</maximum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>DPM_Added</attributeName>
><attributeDefinition>Amount/activity of 14C added to the tube (mean of 3 replicate measurements)</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><customUnit>disintegrationsPerMinute</customUnit>
></unit>
><precision> 1</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>DPM_Incorporated</attributeName>
><attributeDefinition>Amount/activity of 14C incorporated during 1 hour incubation</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><customUnit>disintegrationsPerMinute</customUnit>
></unit>
><precision>0.1</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
><attribute>
><attributeName>CO3_Incorporated</attributeName>
><attributeDefinition>Amount of radiolabeled bicarbonate incorporated during 1 hour incubation</attributeDefinition>
><storageType>double</storageType>
><measurementScale>
><ratio>
><unit>
><customUnit>picoMolesPerLiter</customUnit>
></unit>
><precision>0.0001</precision>
><numericDomain>
><numberType>real</numberType>
><bounds>
><minimum exclusive="false">0</minimum>
></bounds>
></numericDomain>
></ratio>
></measurementScale>
></attribute>
></attributeList>
></dataTable>
></dataset>
><additionalMetadata>
><stmml:unitList xmlns:stmml="http://www.xml-cml.org/schema/stmml" xsi:schemaLocation="http://www.xml-cml.org/schema/stmml http://gce-lter.marsci.uga.edu/lter/files/schemas/eml-200/stmml.xsd">
><!--note that the unitTypes here are taken from the eml-unitDictionary.xml-->
><stmml:unit id="disintegrationsPerMinute" name="disintegrationsPerMinute" unitType="radionucleotideActivity" abbreviation="DPM" multiplierToSI="60" parentSI="becquerel" />
><stmml:unit id="microEinsteinsPerSquareMeterPerSecond" name="microEinsteinsPerSquareMeterPerSecond" unitType="illuminance" abbreviation="µE/m^2/s" />
><stmml:unit id="picoMolesPerLiter" name="picoMolesPerLiter" unitType="amountOfSubstanceConcentration" abbreviation="pM" multiplierToSI="0.000000000001" parentSI="molarity" />
></stmml:unitList>
></additionalMetadata>
></eml:eml>
>  
>

-- 
David Blankman
EML Integration Developer
LTER Network Office
801 University, SE #104
Albuquerque, NM 87106
(505) 272-7346

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