[eml-cvs] eml eml-unitDictionary.xml
Chad Berkley
berkley at nceas.ucsb.edu
Fri Oct 18 09:09:56 PDT 2002
Hi Peter,
See my comments below.
On Fri, 2002-10-18 at 08:55, Peter McCartney wrote:
> Ok, i see now that i have some numbers in there to convert between units
> that have a similar unitType attribute. but i still dont see how the content
> model really explains the derivation of the unit. take speed for example.
> the unitType definition is still very abstract (divide some length by some
> time). metersPerSecond and feedPerDay both have multipliers that obviously
> scale both the distance and the time unit to their respective bases, but i
> still dont really know what those are (other than guessing from their names
> or descriptions). I can tell that metersPerSecond must be the base unit for
> all other units that have a unitType of Speed, but this isnt really
> explicitly stated any where - I just guessed it by the fact that its the
> only one with a multiplier of 1.
You don't guess by that, that's how you know it.
>
> I can see that the math all works fine within emlUnitDictionary, but what
> happens when i extend it? Show me how I know that the SI to which feetPerDay
> is multplied is metersPerSecond. suppose i need to define metersPerDecade
> for glacial research. how do i know that the SI im supossed to provide a
> multliplier for is metersPerSecond. for that matter, who decides what the
> parent SI is, anyway? Suppose i give you a multiplier to feetPerDay. how
> will you know to convert between the two different bases we've used in order
> to understand my unit? to fix this, you need to minimally name the parentSI
> in all these units so that we know what the multiplier is to.
>
No, you don't. NIST (and various other standards bodies) define the
base SI units for the most basic types of measurements (see
http://physics.nist.gov/cuu/Units/) which are the ones I used. The unit
with a multiplier of 1 is the base SI unit, thus a unit must always have
a multiplier back to the unit with a multiplier of 1.If you want to
define feetPerDecade, you figure out what the conversion factor is to
metersPerSecond (which has multiplierToSI="1")
> Even doing this seems like a patch that makes things work, but i still
> question whether we really have a real ontology here rather than a big
> enumeration with multipliers to standards. Theres still nothing here that
> lets me track a unit back to its unitType derivation and make any
> intelligent use of the mathematical relations defined there. Show me how i
> know that feetPerDay is calculated as the product of foot (a length unit)
> and day (a time unit raised to -1).
>
I totally agree that it would be useful to be able to match the unit
back to the dimension which it is defining. Perhaps we should engage
Peter Murray-Rust in a conversation about that, since I didn't really
understand his enterpretation of my example in a previous email.
Can you give me an example of an application of this that would require
us to be able to link, say, feet to length or Decade to time so I can
have a concrete example to work with Peter on.
chad
>
> -----Original Message-----
> From: berkley at ecoinformatics.org [mailto:berkley at ecoinformatics.org]
> Sent: Friday, October 11, 2002 3:34 PM
> To: eml-cvs at f.org
> Subject: [eml-cvs] eml eml-unitDictionary.xml
>
>
> berkley 02/10/11 15:34:27
>
> Modified: . eml-unitDictionary.xml
> Log:
> totally reformatted the unitDictionary...added converstion factors to
> every unit. all conversion should be possible now.
>
> Revision Changes Path
> 1.19 +313 -241 eml/eml-unitDictionary.xml
>
> Index: eml-unitDictionary.xml
> ===================================================================
> RCS file: /cvs/eml/eml-unitDictionary.xml,v
> retrieving revision 1.18
> retrieving revision 1.19
> diff -u -r1.18 -r1.19
> --- eml-unitDictionary.xml 4 Oct 2002 23:29:43 -0000 1.18
> +++ eml-unitDictionary.xml 11 Oct 2002 22:34:27 -0000 1.19
> @@ -15,8 +15,8 @@
> For Details: http://knb.ecoinformatics.org/
>
> '$Author: berkley $'
> - '$Date: 2002/10/04 23:29:43 $'
> - '$Revision: 1.18 $'
> + '$Date: 2002/10/11 22:34:27 $'
> + '$Revision: 1.19 $'
>
> This program is free software; you can redistribute it and/or modify
> it under the terms of the GNU General Public License as published by
> @@ -40,31 +40,31 @@
> <!--
> ======================================================================= -->
> <!-- ========================= fundamental types
> =========================== -->
> <!--
> ======================================================================= -->
> - <unitType id="length" name="length">
> + <unitType id="length" name="length"> <!--meter-->
> <dimension name="length" />
> </unitType>
>
> - <unitType id="time" name="time">
> + <unitType id="time" name="time"> <!--second-->
> <dimension name="time" />
> </unitType>
>
> - <unitType id="mass" name="mass">
> + <unitType id="mass" name="mass"> <!--kilogram-->
> <dimension name="mass"/>
> </unitType>
>
> - <unitType id="charge" name="charge">
> + <unitType id="charge" name="charge"> <!--coulomb-->
> <dimension name="charge"/>
> </unitType>
>
> - <unitType id="temperature" name="temperature">
> + <unitType id="temperature" name="temperature"> <!--kelvin-->
> <dimension name="temperature"/>
> </unitType>
>
> - <unitType id="amount" name="amount">
> + <unitType id="amount" name="amount"> <!--mole-->
> <dimension name="amount"/>
> </unitType>
>
> - <unitType id="luminosity" name="luminosity">
> + <unitType id="luminosity" name="luminosity"> <!--candela-->
> <dimension name="luminosity"/>
> </unitType>
>
> @@ -72,55 +72,56 @@
> <dimension name="dimensionless" />
> </unitType>
>
> - <unitType id="angle" name="angle">
> + <unitType id="angle" name="angle"> <!--radian-->
> <dimension name="angle" />
> </unitType>
>
> <!--
> ======================================================================= -->
> <!-- ========================== derived types
> ============================== -->
> <!--
> ======================================================================= -->
> - <unitType id="acceleration" name="acceleration">
> +
> + <unitType id="acceleration" name="acceleration">
> <!--metersPerSecondSquared-->
> <dimension name="length" />
> <dimension name="time" power="-2" />
> </unitType>
>
> - <unitType id="current" name="current">
> + <unitType id="current" name="current"> <!--ampere-->
> <dimension name="charge" />
> <dimension name="time" power="-1" />
> </unitType>
>
> - <unitType id="magneticFieldStrength" name="magneticFieldStrength">
> + <unitType id="magneticFieldStrength" name="magneticFieldStrength">
> <!--amperePerMeter-->
> <dimension name="charge" />
> <dimension name="time" power="-1" />
> <dimension name="length"/>
> </unitType>
>
> - <unitType id="currentDensity" name="currentDensity">
> + <unitType id="currentDensity" name="currentDensity">
> <!--amperePerSquareMeter-->
> <dimension name="charge" />
> <dimension name="time" power="-1" />
> <dimension name="length" power="-2"/>
> </unitType>
>
> - <unitType id="area" name="area">
> + <unitType id="area" name="area"> <!--squareMeters-->
> <dimension name="length" />
> <dimension name="length" />
> </unitType>
>
> - <unitType id="reciprocal" name="reciprocal">
> + <unitType id="reciprocal" name="reciprocal"> <!--waveNumber-->
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="frequency" name="frequency">
> + <unitType id="frequency" name="frequency"> <!--hertz-->
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="volume" name="volume">
> + <unitType id="volume" name="volume"> <!--cubicMeter-->
> <dimension name="length" />
> <dimension name="length" />
> <dimension name="length" />
> </unitType>
>
> - <unitType id="volumetricArea" name="volumetricArea">
> + <unitType id="volumetricArea" name="volumetricArea">
> <!--litersPerSquareMeter-->
> <dimension name="length" />
> <dimension name="length" />
> <dimension name="length" />
> @@ -128,30 +129,26 @@
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="speed" name="speed">
> + <unitType id="speed" name="speed"> <!--metersPerSecond-->
> <dimension name="length" />
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="waveNumber" name="wave number">
> - <dimension name="length" power="-1"/>
> - </unitType>
> -
> - <unitType id="massDensity" name="mass density">
> + <unitType id="massDensity" name="massDensity">
> <!--kilogramPerCubicMeter-->
> <dimension name="mass" />
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="volumetricRate" name="volumetric rate">
> + <unitType id="volumetricRate" name="volumetricRate">
> <!--litersPerSecond-->
> <dimension name="length"/>
> <dimension name="length"/>
> <dimension name="length"/>
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="massDensityRate" name="mass density rate">
> + <unitType id="massDensityRate" name="massDensityRate">
> <!--gramsPerLiterPerDay-->
> <dimension name="mass" />
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> @@ -159,207 +156,198 @@
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="massArealRate" name="massArealRate">
> + <unitType id="massArealRate" name="massArealRate">
> <!--kilogramsPerMeterSquaredPerSecond-->
> <dimension name="mass" />
> <dimension name="length" power="-2"/>
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="specificVolume" name="specific volume">
> + <unitType id="specificVolume" name="specificVolume">
> <!--cubicMeterPerKilogram-->
> <dimension name="mass" power="-1"/>
> <dimension name="length"/>
> <dimension name="length"/>
> <dimension name="length"/>
> </unitType>
>
> - <unitType id="amountOfSubstanceConcentration" name="amount of substance
> concentration">
> + <unitType id="amountOfSubstanceConcentration"
> name="amountOfSubstanceConcentration"> <!--molePerCubicMeter-->
> <dimension name="amount" />
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="amountOfSubstanceWeight" name="amount of substance
> weight">
> + <unitType id="amountOfSubstanceWeight" name="amountOfSubstanceWeight">
> <!--molesPerKilogram-->
> <dimension name="amount" />
> <dimension name="mass" power="-1"/>
> </unitType>
>
> - <unitType id="amountOfSubstanceWeightFlux"
> name="amountOfSubstanceWeightFlux">
> + <unitType id="amountOfSubstanceWeightFlux"
> name="amountOfSubstanceWeightFlux"> <!--molesPerKilogramPerSecond-->
> <dimension name="amount" />
> <dimension name="mass" power="-1"/>
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="massFlux" name="massFlux">
> + <unitType id="massFlux" name="massFlux"> <!--kilogramsPerSecond-->
> <dimension name="mass" />
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="luminance" name="luminance">
> + <unitType id="luminance" name="luminance"> <!--candelaPerSquareMeter-->
> <dimension name="luminosity" />
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="massFraction" name="mass fraction">
> - <dimension name="mass" />
> - <dimension name="mass" power="-1"/>
> - </unitType>
> -
> <unitType id="undefined" name="undefined">
> <dimension name="dimensionless"/>
> </unitType>
>
> - <unitType id="volumetricDensity" name="volumetric density">
> + <unitType id="volumetricDensity" name="volumetricDensity">
> <!--numberPerMeterCubed-->
> <dimension name="dimensionless"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="arealDensity" name="areal density">
> + <unitType id="arealDensity" name="arealDensity">
> <!--numberPerMeterSquared-->
> <dimension name="dimensionless"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="arealMassDensity" name="areal mass density">
> + <unitType id="arealMassDensity" name="arealMassDensity">
> <!--kilogramsPerSquareMeter-->
> <dimension name="mass"/>
> <dimension name="length" power="-1"/>
> <dimension name="length" power="-1"/>
> </unitType>
>
> - <unitType id="arealMass" name="areal mass">
> + <unitType id="arealMass" name="arealMass">
> <!--squareMeterPerKilogram-->
> <dimension name="mass" power="-1"/>
> <dimension name="length"/>
> <dimension name="length"/>
> </unitType>
>
> - <unitType id="force" name="force">
> + <unitType id="force" name="force"> <!--newton-->
> <dimension name="mass"/>
> <dimension name="length"/>
> <dimension name="time" power="-2"/>
> </unitType>
>
> - <unitType id="energy" name="energy">
> + <unitType id="energy" name="energy"> <!--joule-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-2"/>
> </unitType>
>
> - <unitType id="power" name="power">
> + <unitType id="power" name="power"> <!--watt-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-3"/>
> </unitType>
>
> - <unitType id="potentialDifference" name="potentialDifference">
> + <unitType id="potentialDifference" name="potentialDifference">
> <!--volt-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-4"/>
> <dimension name="charge" />
> </unitType>
>
> - <unitType id="capacitance" name="capacitance">
> + <unitType id="capacitance" name="capacitance"> <!--farad-->
> <dimension name="mass" power="-1"/>
> <dimension name="length" power="-2"/>
> <dimension name="time" power="2"/>
> <dimension name="charge" power="2"/>
> </unitType>
>
> - <unitType id="resistance" name="resistance">
> + <unitType id="resistance" name="resistance"> <!--ohm-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-5"/>
> <dimension name="charge" power="-2"/>
> </unitType>
>
> - <unitType id="resistivity" name="resistivity">
> + <unitType id="resistivity" name="resistivity"> <!--ohmMeters-->
> <dimension name="mass"/>
> <dimension name="length" power="3"/>
> <dimension name="time" power="-5"/>
> <dimension name="charge" power="-2"/>
> </unitType>
>
> - <unitType id="conductance" name="conductance">
> + <unitType id="conductance" name="conductance"> <!--siemens-->
> <dimension name="mass" power="-1"/>
> <dimension name="length" power="-2"/>
> <dimension name="time" power="5"/>
> <dimension name="charge" power="2"/>
> </unitType>
>
> - <unitType id="magneticFlux" name="magneticFlux">
> + <unitType id="magneticFlux" name="magneticFlux"> <!--weber-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-1"/>
> <dimension name="charge" power="-1"/>
> </unitType>
>
> - <unitType id="magneticFluxDensity" name="magneticFluxDensity">
> + <unitType id="magneticFluxDensity" name="magneticFluxDensity">
> <!--tesla-->
> <dimension name="mass"/>
> <dimension name="time" power="-1"/>
> <dimension name="charge" power="-1"/>
> </unitType>
>
> - <unitType id="inductance" name="inductance">
> + <unitType id="inductance" name="inductance"> <!--henry-->
> <dimension name="mass"/>
> <dimension name="length" power="2"/>
> <dimension name="time" power="-5"/>
> <dimension name="charge" power="-2"/>
> </unitType>
>
> - <unitType id="luminousFlux" name="luminousFlux">
> - <dimension name="luminosity"/>
> - </unitType>
> -
> - <unitType id="illuminance" name="illuminance">
> + <unitType id="illuminance" name="illuminance"> <!--lux-->
> <dimension name="luminosity"/>
> <dimension name="length" power="-2"/>
> </unitType>
>
> - <unitType id="radionucleotideActivity" name="radionucleotideActivity">
> + <unitType id="radionucleotideActivity" name="radionucleotideActivity">
> <!--becquerel-->
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="specificEnergy" name="specificEnergy">
> + <unitType id="specificEnergy" name="specificEnergy"> <!--gray-->
> <dimension name="time" power="-2"/>
> <dimension name="length" power="2"/>
> </unitType>
>
> - <unitType id="doseEquivalent" name="doseEquivalent">
> + <unitType id="doseEquivalent" name="doseEquivalent"> <!--sievert-->
> <dimension name="time" power="-2"/>
> <dimension name="length" power="2"/>
> </unitType>
>
> - <unitType id="catalyticActivity" name="catalyticActivity">
> + <unitType id="catalyticActivity" name="catalyticActivity"> <!--katal-->
> <dimension name="time" power="-1"/>
> <dimension name="amount"/>
> </unitType>
>
> - <unitType id="pressure" name="pressure">
> + <unitType id="pressure" name="pressure"> <!--pascal-->
> <dimension name="mass"/>
> <dimension name="time" power="-2"/>
> <dimension name="length" power="3"/>
> </unitType>
>
> - <unitType id="englishPressure" name="englishPressure">
> + <unitType id="englishPressure" name="englishPressure">
> <!--poundsPerSquareInch-->
> <dimension name="mass"/>
> <dimension name="length" power="-2"/>
> </unitType>
>
> - <unitType id="volumetricHydrolicConductivity"
> name="volumetricHydrolicConductivity">
> + <unitType id="volumetricHydrolicConductivity"
> name="volumetricHydrolicConductivity"> <!--cubicMetersPerSecond-->
> <dimension name="length"/>
> <dimension name="length"/>
> <dimension name="length"/>
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="transmissivity" name="transmissivity">
> + <unitType id="transmissivity" name="transmissivity">
> <!--metersSquaredPerSecond-->
> <dimension name="length" power="2"/>
> <dimension name="time" power="-1"/>
> </unitType>
>
> - <unitType id="arealMassFlux" name="arealMassFlux">
> + <unitType id="arealMassFlux" name="arealMassFlux">
> <!--kilogramsPerMeterSquaredPerSecond-->
> <dimension name="mass"/>
> <dimension name="length" power="-2"/>
> <dimension name="time" power="-1"/>
> @@ -376,35 +364,35 @@
> <description>unit for fields with no unit</description>
> </unit>
>
> - <unit id="second" name="second" unitType="time" abbreviation="sec">
> + <unit id="second" name="second" unitType="time" abbreviation="sec"
> multiplierToSI="1">
> <description>The SI unit of time</description>
> </unit>
>
> - <unit id="meter" name="meter" unitType="length" abbreviation="m">
> + <unit id="meter" name="meter" unitType="length" abbreviation="m"
> multiplierToSI="1">
> <description>The SI unit of length</description>
> </unit>
>
> - <unit id="kilogram" name="kilogram" unitType="mass" abbreviation="kg">
> + <unit id="kilogram" name="kilogram" unitType="mass" abbreviation="kg"
> multiplierToSI="1">
> <description>SI unit of mass</description>
> </unit>
>
> - <unit id="kelvin" name="kelvin" unitType="temperature"
> abbreviation="K">
> + <unit id="kelvin" name="kelvin" unitType="temperature" abbreviation="K"
> multiplierToSI="1">
> <description>SI unit for temperature</description>
> </unit>
>
> - <unit id="coulomb" name="coulomb" unitType="charge" abbreviation="C">
> + <unit id="coulomb" name="coulomb" unitType="charge" abbreviation="C"
> multiplierToSI="1">
> <description>SI unit for charge</description>
> </unit>
>
> - <unit id="ampere" name="ampere" unitType="current" abbreviation="A">
> + <unit id="ampere" name="ampere" unitType="current" abbreviation="A"
> multiplierToSI="1">
> <description>SI unit of electrical current</description>
> </unit>
>
> - <unit id="mole" name="mole" unitType="amount" abbreviation="mol">
> + <unit id="mole" name="mole" unitType="amount" abbreviation="mol"
> multiplierToSI="1">
> <description>SI unit of substance amount</description>
> </unit>
>
> - <unit id="candela" name="candela" unitType="luminosity"
> abbreviation="cd">
> + <unit id="candela" name="candela" unitType="luminosity"
> abbreviation="cd" multiplierToSI="1">
> <description>SI unit of luminosity</description>
> </unit>
>
> @@ -412,12 +400,16 @@
> <description>a number</description>
> </unit>
>
> + <unit id="cubicMeter" name="cubicMeter" unitType="volume"
> multiplierToSI="1">
> + <description>cubic meter</description>
> + </unit>
> +
>
> <!--
> ======================================================================= -->
> <!-- ===================== derived SI units
> ================================ -->
> <!--
> ======================================================================= -->
>
> - <!--grams-->
> + <!--mass-->
> <unit id="nanogram" name="nanogram" unitType="mass" parentSI="kilogram"
> multiplierToSI="0.000000000001" abbreviation="ng">
> <description>0.000000000001 kg.</description>
> </unit>
> @@ -446,12 +438,27 @@
> <description>100 kg</description>
> </unit>
>
> + <unit id="tonne" name="tonne" unitType="mass" multiplierToSI="1000">
> + <description>metric ton or tonne</description>
> + </unit>
> +
> + <unit id="pound" name="pound" parentSI="gram" abbreviation="lbs"
> multiplierToSI="453.6">
> + <description>1 pound in the Avoirdupois (commerce)
> scale</description>
> + </unit>
> + <unit id="ton" name="ton" parentSI="gram" abbreviation="ton"
> multiplierToSI="907200">
> + <description>standard US (short) ton = 2000 lbs</description>
> + </unit>
> +
> <!--temp-->
> <unit id="celsius" name="Celsius" parentSI="kelvin" multiplierToSI="1"
> constantToSI="273.18" abbreviation="C">
> <description>A common unit of temperature</description>
> </unit>
>
> - <!--meters-->
> + <unit id="fahr" name="fahrenheit" parentSI="k" abbreviation="F"
> multiplierToSI="0.55555555555555555" constantToSI="-17.777777777777777777">
> + <description>An obsolescent unit of temperature still used in popular
> meteorology</description>
> + </unit>
> +
> + <!--length-->
> <unit id="nanometer" name="nanometer" parentSI="meter"
> multiplierToSI=".000000001" abbreviation="nm">
> <description>.000000001 meters</description>
> </unit>
> @@ -486,6 +493,40 @@
> <description>1000000 meters</description>
> </unit>
>
> + <unit id="inch" name="inch" parentSI="meter" abbreviation="in"
> multiplierToSI="0.0254">
> + <description>An imperial measure of length</description>
> + </unit>
> + <unit id="Foot_US" name="Foot_US" parentSI="meter" abbreviation="usft"
> multiplierToSI=".3048">
> + <description>12 inches</description>
> + </unit>
> + <unit id="foot" name="foot" parentSI="meter" abbreviation="ft"
> multiplierToSI=".3048">
> + <description>12 inches</description>
> + </unit>
> + <unit id="Foot_Gold_Coast" name="Foot_Gold_Coast" parentSI="meter"
> abbreviation="gcft" multiplierToSI=".3047997">
> + <description>12 inches</description>
> + </unit>
> + <unit id="fathom" name="fathom" parentSI="meter"
> multiplierToSI="1.8288">
> + <description>6 feet</description>
> + </unit>
> + <unit id="nauticalMile" name="nauticalMile" parentSI="meter"
> multiplierToSI="1852">
> + <description>natical mile</description>
> + </unit>
> + <unit id="yard" name="yard" parentSI="meter" abbreviation="yard"
> multiplierToSI=".9144">
> + <description>3 feet</description>
> + </unit>
> + <unit id="Yard_Indian" name="Yard_Indian" parentSI="meter"
> multiplierToSI=".914398530744440774">
> + <description></description>
> + </unit>
> + <unit id="Link_Clarke" name="Link_Clarke" parentSI="meter"
> multiplierToSI=".2011661949">
> + <description></description>
> + </unit>
> + <unit id="Yard_Sears" name="Yard_Sears" parentSI="meter"
> multiplierToSI=".91439841461602867">
> + <description></description>
> + </unit>
> + <unit id="mile" name="mile" parentSI="meter" abbreviation="mile"
> multiplierToSI="1609.344">
> + <description>5280 ft or 1609.344 meters</description>
> + </unit>
> +
> <!--seconds-->
> <unit id="nanosecond" name="nanosecond" parentSI="second"
> multiplierToSI=".000000001" abbreviation="nsec">
> <description>1/1000000 of a second</description>
> @@ -521,14 +562,17 @@
> <description>3600 seconds</description>
> </unit>
>
> - <!--liters-->
> - <unit id="microliter" name="microliter" unitType="volume"
> multiplierToSI=".000000001" abbreviation="microl">
> + <!--volume-->
> + <unit id="kiloliter" name="kiloliter" unitType="volume"
> parentSI="cubicMeter" multiplierToSI="1">
> + <description>1 cubic meter</description>
> + </unit>
> + <unit id="microliter" name="microliter" unitType="volume"
> parentSI="cubicMeter" multiplierToSI=".000000001" abbreviation="microl">
> <description>1/1000000 of a liter</description>
> </unit>
> - <unit id="milliliter" name="milliliter" unitType="volume"
> multiplierToSI=".000001" abbreviation="ml">
> + <unit id="milliliter" name="milliliter" unitType="volume"
> parentSI="cubicMeter" multiplierToSI=".000001" abbreviation="ml">
> <description>1/1000 of a liter</description>
> </unit>
> - <unit id="liter" name="liter" unitType="volume" multiplierToSI=".001"
> abbreviation="L">
> + <unit id="liter" name="liter" unitType="volume" parentSI="cubicMeter"
> multiplierToSI=".001" abbreviation="L">
> <description>1000 cm^3</description>
> </unit>
>
> @@ -539,6 +583,19 @@
> <description>us liquid quart</description>
> </unit>
>
> + <unit id="bushel" name="bushel" unitType="volume"
> multiplierToSI="0.035239">
> + <description>1 bushel = 35.23907 liters</description>
> + </unit>
> +
> + <unit id="cubicInch" name="cubicInch" unitType="volume"
> multiplierToSI=".000016">
> + <description>cubic inch</description>
> + </unit>
> +
> + <unit id="pint" name="pint" parentSI="liter" abbreviation="pint"
> multiplierToSI=".473176">
> + <description>this is a US liquid pint</description>
> + </unit>
> +
> +
> <!--angles-->
> <unit id="radian" name="radian" unitType="angle" multiplierToSI="1"
> abbreviation="rad">
> <description>radian</description>
> @@ -564,7 +621,7 @@
> <description>millihertz</description>
> </unit>
>
> - <!--SI force -->
> + <!--force -->
> <unit id="newton" name="newton" unitType="force" multiplierToSI="1"
> abbreviation="N">
> <description>newton</description>
> </unit>
> @@ -604,7 +661,7 @@
> <description>henry</description>
> </unit>
>
> - <!--SI power-->
> + <!--power-->
> <unit id="megawatt" name="megawatt" unitType="power"
> multiplierToSI="1000000" abbreviation="MW">
> <description>megawatt</description>
> </unit>
> @@ -648,7 +705,7 @@
> <description>tesla</description>
> </unit>
>
> - <!--SI pressure-->
> + <!--pressure-->
> <unit id="pascal" name="pascal" unitType="pressure" multiplierToSI="1"
> abbreviation="Pa">
> <description>pascal</description>
> </unit>
> @@ -659,7 +716,6 @@
> <description>mega pascal</description>
> </unit>
>
> - <!--English pressure-->
> <unit id="atmosphere" name="atmosphere" parentSI="pascal"
> unitType="pressure" multiplierToSI="101325" abbreviation="atm">
> <description>1 atmosphere = 101325 pascals </description>
> </unit>
> @@ -669,265 +725,281 @@
> <unit id="millibar" name="millibar" parentSI="bar" unitType="pressure"
> multiplierToSI=".000001" abbreviation="mbar">
> <description>millibar</description>
> </unit>
> - <unit id="poundsPerSquareInch" name="poundsPerSquareInch"
> unitType="englishPressure">
> + <unit id="poundsPerSquareInch" name="poundsPerSquareInch"
> unitType="englishPressure" multiplierToSI="1">
> <description>lbs/square inch</description>
> </unit>
>
> - <!--misc. combos-->
> - <unit id="milliGramsPerMilliLiter" name="milliGramsPerMilliLiter"
> unitType="massDensity" abbreviation="mg/ml">
> + <!--massDensity-->
> + <unit id="kilogramPerCubicMeter" name="kilogramPerCubicMeter"
> unitType="massDensity" multiplierToSI="1">
> + <description>kilogram per cubic meter</description>
> + </unit>
> + <unit id="milliGramsPerMilliLiter" name="milliGramsPerMilliLiter"
> unitType="massDensity" abbreviation="mg/ml" multiplierToSI="1">
> <description>grams per milliliter</description>
> </unit>
> - <unit id="gramsPerLiter" name="gramsPerLiter" unitType="massDensity"
> abbreviation="g/l">
> + <unit id="gramsPerLiter" name="gramsPerLiter" unitType="massDensity"
> abbreviation="g/l" multiplierToSI="1">
> <description>grams per liter</description>
> </unit>
> - <unit id="kilogramsPerCubicMeter" name="kilogramsPerCubicMeter"
> unitType="massDensity">
> - <description>Fundamental SI mass density</description>
> - </unit>
> - <unit id="milligramsPerCubicMeter" name="milligramsPerCubicMeter"
> unitType="massDensity">
> + <unit id="milligramsPerCubicMeter" name="milligramsPerCubicMeter"
> unitType="massDensity" multiplierToSI=".000001">
> <description>milligrams Per Cubic Meter</description>
> </unit>
> - <unit id="microgramsPerLiter" name="microgramsPerLiter"
> unitType="massDensity">
> + <unit id="microgramsPerLiter" name="microgramsPerLiter"
> unitType="massDensity" multiplierToSI="1000000">
> <description>micrograms / liter</description>
> </unit>
> - <unit id="milligramsPerLiter" name="milligramsPerLiter"
> unitType="massDensity">
> + <unit id="milligramsPerLiter" name="milligramsPerLiter"
> unitType="massDensity" multiplierToSI="1000">
> <description>milligrams / liter</description>
> </unit>
> - <unit id="gramsPerCubicCentimeter" name="gramsPerCubitCentimeter"
> unitType="massDensity">
> + <unit id="gramsPerCubicCentimeter" name="gramsPerCubicCentimeter"
> unitType="massDensity" multiplierToSI="1000">
> <description>grams per cubic centimeter</description>
> </unit>
> - <unit id="gramsPerMilliliter" name="gramsPerMilliliter"
> unitType="massDensity">
> + <unit id="gramsPerMilliliter" name="gramsPerMilliliter"
> unitType="massDensity" multiplierToSI="1000">
> <description>grams per milliliter</description>
> </unit>
> - <unit id="gramsPerLiterPerDay" name="gramsPerLiterPerDay"
> unitType="massDensityRate">
> +
> + <!--massDensityRate-->
> + <unit id="gramsPerLiterPerDay" name="gramsPerLiterPerDay"
> unitType="massDensityRate" multiplierToSI="1">
> <description>grams Per (Liter Per Day)</description>
> </unit>
> - <unit id="litersPerSecond" name="litersPerSecond"
> unitType="volumetricRate">
> +
> + <!--volumetricRate-->
> + <unit id="litersPerSecond" name="litersPerSecond"
> unitType="volumetricRate" multiplierToSI="1">
> <description>liters per second</description>
> </unit>
> - <unit id="milligramsPerSquareMeter" name="milligramsPerSquareMeter"
> unitType="arealMassDensity">
> +
> + <!--arealMassDensity-->
> + <unit id="kilogramsPerSquareMeter" name="kilogramsPerSquareMeter"
> unitType="arealMassDensity" multiplierToSI="1">
> + <description>kilograms Per Square Meter</description>
> + </unit>
> + <unit id="milligramsPerSquareMeter" name="milligramsPerSquareMeter"
> unitType="arealMassDensity" multiplierToSI="1000000">
> <description>milligrams Per Square Meter</description>
> </unit>
> - <unit id="are" name="are" unitType="area">
> + <unit id="kilogramsPerHectare" name="kilogramsPerHectare"
> unitType="arealMassDensity" multiplierToSI=".00001">
> + <description>kilograms per hectare</description>
> + </unit>
> + <unit id="tonnePerHectare" name="tonnePerHectare"
> unitType="arealMassDensity" multiplierToSI=".1">
> + <description>metric ton or tonne per hectare</description>
> + </unit>
> +
> + <!--area-->
> + <unit id="squareMeter" name="squareMeter" unitType="area"
> multiplierToSI="1">
> + <description>square millmeters</description>
> + </unit>
> + <unit id="are" name="are" unitType="area" multiplierToSI="100">
> <description>100 square meters</description>
> </unit>
> - <unit id="hectare" name="hectare" unitType="area">
> + <unit id="hectare" name="hectare" unitType="area"
> multiplierToSI="10000">
> <description>1 hectare is 10^4 square meters</description>
> </unit>
> - <unit id="kilogramsPerHectare" name="kilogramsPerHectare"
> unitType="arealMassDensity">
> - <description>kilograms per hectare</description>
> - </unit>
> - <unit id="squareKilometers" name="squareKilometers" unitType="area">
> + <unit id="squareKilometers" name="squareKilometers" unitType="area"
> multiplierToSI="1000000">
> <description>square kilometers</description>
> </unit>
> - <unit id="squareMillimeters" name="squareMillimeters" unitType="area">
> + <unit id="squareMillimeters" name="squareMillimeters" unitType="area"
> multiplierToSI=".000001">
> <description>square millmeters</description>
> </unit>
> - <unit id="squareCentimeters" name="squareCentimeters" unitType="area">
> + <unit id="squareCentimeters" name="squareCentimeters" unitType="area"
> multiplierToSI=".0001">
> <description>square centimeters</description>
> </unit>
> - <unit id="tonne" name="tonne" unitType="mass" multiplierToSI="1000">
> - <description>metric ton or tonne</description>
> +
> + <unit id="acre" name="acre" unitType="area" multiplierToSI="4046.8564">
> + <description>1 acre = 4046.8564 square meters or 1 hectare = 2.47
> acres</description>
> </unit>
> - <unit id="tonnePerHectare" name="tonnePerHectare"
> unitType="arealMassDensity">
> - <description>metric ton or tonne per hectare</description>
> +
> + <unit id="squareFoot" name="squareFoot" unitType="area"
> multiplierToSI=".092903">
> + <description>12 inches squared</description>
> </unit>
> - <unit id="bushel" name="bushel" unitType="volume">
> - <description>1 bushel = 35.23907 liters</description>
> + <unit id="squareYard" name="squareYard" unitType="area"
> multiplierToSI=".836131">
> + <description>36 inches squared</description>
> </unit>
> - <unit id="acre" name="acre" unitType="area">
> - <description>1 acre = 4046.8564 square meters or 1 hectare = 2.47
> acres</description>
> + <unit id="squareMile" name="squareMile" unitType="area"
> multiplierToSI="2589998.49806">
> + <description>1 mile squared</description>
> </unit>
> - <unit id="bushelsPerAcre" name="bushelsPerAcre"
> unitType="volumetricArea">
> - <description> bushels per acre</description>
> +
> + <!--volumetricArea-->
> + <unit id="litersPerSquareMeter" name="litersPerSquareMeter"
> unitType="volumetricArea" multiplierToSI="1">
> + <description>liters per square meter</description>
> </unit>
> - <unit id="litersPerHectare" name="litersPerHectare"
> unitType="volumetricArea">
> - <description>liters per hectare</description>
> + <unit id="bushelsPerAcre" name="bushelsPerAcre"
> unitType="volumetricArea" multiplierToSI=".00870">
> + <description>bushels per acre -- 1 bushel = 35.23907 liters/1 acre =
> 4046.8564 squareMeters</description>
> </unit>
> - <unit id="squareMeterPerKilogram" name="squareMeterPerKilogram"
> unitType="arealMass">
> + <unit id="litersPerHectare" name="litersPerHectare"
> unitType="volumetricArea" multiplierToSI=".0001">
> <description>liters per hectare</description>
> </unit>
> - <unit id="squareMeter" name="squareMeter" unitType="area"
> multiplierToSI="1">
> - <description>square meter</description>
> - </unit>
> - <unit id="cubidMeter" name="cubitMeter" unitType="volume"
> multiplierToSI="1">
> - <description>cubic meter</description>
> - </unit>
> - <unit id="cubicMeter" name="cubicMeter" unitType="volume"
> multiplierToSI="1">
> - <description>cubic meter</description>
> +
> + <!--arealMass-->
> + <unit id="squareMeterPerKilogram" name="squareMeterPerKilogram"
> unitType="arealMass" multiplierToSI="1">
> + <description>square meters per kilogram</description>
> </unit>
> +
> + <!--speed-->
> <unit id="metersPerSecond" name="metersPerSecond" unitType="speed"
> multiplierToSI="1">
> <description>meters per second</description>
> </unit>
> + <unit id="feetPerDay" name="feetPerDay" unitType="speed"
> multiplierToSI=".00000352778">
> + <description>feet per day</description>
> + </unit>
> + <unit id="feetPerSecond" name="feetPerSecond" unitType="speed"
> multiplierToSI=".3048">
> + <description>feet per second</description>
> + </unit>
> + <unit id="feetPerHour" name="feetPerHour" unitType="speed"
> multiplierToSI=".000084666">
> + <description>feet per hour</description>
> + </unit>
> + <unit id="yardsPerSecond" name="yardsPerSecond" unitType="speed"
> multiplierToSI=".9144">
> + <description>yards per second</description>
> + </unit>
> + <unit id="milesPerHour" name="milesPerHour" unitType="speed"
> multiplierToSI=".44704">
> + <description>miles per hour</description>
> + </unit>
> + <unit id="milesPerSecond" name="milesPerSecond" unitType="speed"
> multiplierToSI="1609.344">
> + <description>miles per second</description>
> + </unit>
> + <unit id="milesPerMinute" name="milesPerMinute" unitType="speed"
> multiplierToSI="26.8224">
> + <description>miles per minute</description>
> + </unit>
> + <unit id="centimetersPerSecond" name="centimetersPerSecond"
> unitType="speed" multiplierToSI=".01">
> + <description>centimeters per second</description>
> + </unit>
> + <unit id="millimetersPerSecond" name="millimetersPerSecond"
> unitType="speed" multiplierToSI=".0001">
> + <description>millimeters per second</description>
> + </unit>
> + <unit id="centimeterPerYear" name="centimeterPerYear" unitType="speed"
> multiplierToSI=".000000000317098">
> + <description>centimeter Per Year</description>
> + </unit>
> + <unit id="knots" name="knots" unitType="speed"
> multiplierToSI=".514444">
> + <description>knots</description>
> + </unit>
> + <unit id="kilometersPerHour" name="kilometersPerHour" unitType="speed"
> multiplierToSI=".277777">
> + <description>km/hr</description>
> + </unit>
> +
> +
> + <!--acceleration-->
> <unit id="metersPerSecondSquared" name="metersPerSecondSquared"
> unitType="acceleration" multiplierToSI="1">
> <description>meters per second squared</description>
> </unit>
> +
> + <!--waveNumber-->
> <unit id="waveNumber" name="waveNumber" unitType="reciprocal"
> multiplierToSI="1">
> <description>1/meters</description>
> </unit>
> +
> + <!--specificVolume-->
> <unit id="cubicMeterPerKilogram" name="cubicMeterPerKilogram"
> unitType="specificVolume" multiplierToSI="1">
> <description>cubic meters per kilogram</description>
> </unit>
> +
> + <!--currentDensity-->
> <unit id="amperePerSquareMeter" name="amperePerSquareMeter"
> unitType="currentDensity" multiplierToSI="1">
> <description>ampere per meter squared</description>
> </unit>
> +
> + <!--magneticFieldStrength-->
> <unit id="amperePerMeter" name="amperePerMeter"
> unitType="magneticFieldStrength" multiplierToSI="1">
> <description>ampere per meter</description>
> </unit>
> +
> + <!--amountOfSubstanceConcentration-->
> <unit id="molePerCubicMeter" name="molePerCubicMeter"
> unitType="amountOfSubstanceConcentration" multiplierToSI="1">
> <description>mole per cubic meter</description>
> </unit>
> - <unit id="candelaPerSquareMeter" name="candelaPerSquareMeter"
> unitType="luminance" multiplierToSI="1">
> - <description>candela Per Square Meter</description>
> - </unit>
> - <unit id="molarity" name="molarity"
> unitType="amountOfSubstanceConcentration">
> + <unit id="molarity" name="molarity"
> unitType="amountOfSubstanceConcentration" multiplierToSI="1000">
> <description>molarity = moles/liter</description>
> </unit>
> - <unit id="molality" name="molality"
> unitType="amountOfSubstanceConcentration">
> +
> + <!--amountOfSubstanceWeight-->
> + <unit id="molality" name="molality" unitType="amountOfSubstanceWeight"
> multiplierToSI="1">
> <description>molarity = moles/kg</description>
> </unit>
> - <unit id="metersPerDay" name="metersPerDay"
> unitType="hydrolicConductivity">
> - <description>meters per day</description>
> - </unit>
> - <unit id="feetPerDay" name="feetPerDay" unitType="speed">
> - <description>feet per day</description>
> - </unit>
> - <unit id="feetPerSecond" name="feetPerSecond" unitType="speed">
> - <description>feet per second</description>
> - </unit>
> - <unit id="feetPerHour" name="feetPerHour" unitType="speed">
> - <description>feet per hour</description>
> - </unit>
> - <unit id="yardsPerSecond" name="yardsPerSecond" unitType="speed">
> - <description>yards per second</description>
> - </unit>
> - <unit id="milesPerHour" name="milesPerHour" unitType="speed">
> - <description>miles per hour</description>
> +
> + <!--luminance-->
> + <unit id="candelaPerSquareMeter" name="candelaPerSquareMeter"
> unitType="luminance" multiplierToSI="1">
> + <description>candela Per Square Meter</description>
> </unit>
> - <unit id="milesPerSecond" name="milesPerSecond" unitType="speed">
> - <description>miles per second</description>
> +
> + <!--hydrolicConductivity-->
> + <unit id="metersPerDay" name="metersPerDay"
> unitType="hydrolicConductivity" multiplierToSI="1">
> + <description>meters per day</description>
> </unit>
> - <unit id="milesPerMinute" name="milesPerMinute" unitType="speed">
> - <description>miles per minute</description>
> +
> + <!--volumetricHydrolicConductivity-->
> + <unit id="cubicMetersPerSecond" name="cubicMetersPerSecond"
> unitType="volumetricHydrolicConductivity" multiplierToSI="1">
> + <description>cubic feet per second</description>
> </unit>
> - <unit id="cubicFeetPerSecond" name="cubicFeetPerSecond"
> unitType="volumetricHydrolicConductivity">
> + <unit id="cubicFeetPerSecond" name="cubicFeetPerSecond"
> unitType="volumetricHydrolicConductivity" multiplierToSI=".3048">
> <description>cubic feet per second</description>
> </unit>
> - <unit id="kilogramPerCubicMeter" name="kilogramPerCubicMeter"
> unitType="massDensity">
> - <description>kilogram per cubic meter</description>
> +
> + <!--transmissivity-->
> + <unit id="metersSquaredPerSecond" name="metersSquaredPerSecond"
> unitType="transmissivity" multiplierToSI="1">
> + <description>meters squared per day</description>
> </unit>
> - <unit id="metersSquaredPerDay" name="metersSquaredPerDay"
> unitType="transmissivity">
> + <unit id="metersSquaredPerDay" name="metersSquaredPerDay"
> unitType="transmissivity" multiplierToSI="86400">
> <description>meters squared per day</description>
> </unit>
> - <unit id="feetSquaredPerDay" name="feetSquaredPerDay"
> unitType="transmissivity">
> + <unit id="feetSquaredPerDay" name="feetSquaredPerDay"
> unitType="transmissivity" multiplierToSI=".00000352778">
> <description>feet squared per day</description>
> </unit>
> - <unit id="centimetersPerSecond" name="centimetersPerSecond"
> unitType="speed">
> - <description>centimeters per second</description>
> - </unit>
> - <unit id="millimetersPerSecond" name="millimetersPerSecond"
> unitType="speed">
> - <description>millimeters per second</description>
> +
> + <!--massArealRate-->
> + <unit id="kilogramsPerMeterSquaredPerSecond"
> name="kilogramsPerMeterSquaredPerSecond" unitType="massArealRate"
> multiplierToSI="1">
> + <description>grams Per Centimeter Squared Per Second</description>
> </unit>
> - <unit id="gramsPerCentimeterSquaredPerSecond"
> name="gramsPerCentimeterSquaredPerSecond" unitType="massArealRate">
> + <unit id="gramsPerCentimeterSquaredPerSecond"
> name="gramsPerCentimeterSquaredPerSecond" unitType="massArealRate"
> multiplierToSI=".1">
> <description>grams Per Centimeter Squared Per Second</description>
> </unit>
> - <unit id="gramsPerMeterSquaredPerYear"
> name="gramsPerMeterSquaredPerYear" unitType="massArealRate">
> + <unit id="gramsPerMeterSquaredPerYear"
> name="gramsPerMeterSquaredPerYear" unitType="massArealRate"
> multiplierToSI=".0000000000317098">
> <description>grams Per Meter Squared Per Year</description>
> </unit>
> - <unit id="kilogramsPerHectarePerYear" name="kilogramsPerHectarePerYear"
> unitType="arealMassFlux">
> +
> + <!--arealMassFlux-->
> + <unit id="kilogramsPerMeterSquaredPerSecond"
> name="kilogramsPerMeterSquaredPerSecond" unitType="arealMassFlux"
> multiplierToSI="1">
> + <description>kilograms Per Meter Squared Per Year</description>
> + </unit>
> + <unit id="kilogramsPerHectarePerYear" name="kilogramsPerHectarePerYear"
> unitType="arealMassFlux" multiplierToSI=".000317">
> <description>kilograms Per Hectare Per Year</description>
> </unit>
> - <unit id="kilogramsPerMeterSquaredPerYear"
> name="kilogramsPerMeterSquaredPerYear" unitType="arealMassFlux">
> + <unit id="kilogramsPerMeterSquaredPerYear"
> name="kilogramsPerMeterSquaredPerYear" unitType="arealMassFlux"
> multiplierToSI="31536000">
> <description>kilograms Per Meter Squared Per Year</description>
> </unit>
> - <unit id="centimeterPerYear" name="centimeterPerYear" unitType="speed">
> - <description>centimeter Per Year</description>
> +
> + <!--amountOfSubstanceWeight-->
> + <unit id="molesPerKilogram" name="molesPerKilogram"
> unitType="amountOfSubstanceWeight" multiplierToSI="1">
> + <description>moles per kilogram</description>
> </unit>
> - <unit id="molesPerGram" name="molesPerGram"
> unitType="amountOfSubstanceWeight">
> + <unit id="molesPerGram" name="molesPerGram"
> unitType="amountOfSubstanceWeight" multiplierToSI="1000">
> <description>moles per gram</description>
> </unit>
> - <unit id="millimolesPerGram" name="millimolesPerGram"
> unitType="amountOfSubstanceWeight">
> + <unit id="millimolesPerGram" name="millimolesPerGram"
> unitType="amountOfSubstanceWeight" multiplierToSI="1">
> <description>millimoles per gram</description>
> </unit>
> +
> + <!--amountOfSubstanceWeightFlux-->
> + <unit id="molesPerKilogramPerSecond" name="molesPerKilogramPerSecond"
> unitType="amountOfSubstanceWeightFlux" multiplierToSI="1">
> + <description>nanomoles Per Gram Per Second</description>
> + </unit>
> <unit id="nanomolesPerGramPerSecond" name="amountOfSubstanceWeightFlux"
> unitType="amountOfSubstanceWeightFlux">
> <description>nanomoles Per Gram Per Second</description>
> </unit>
> - <unit id="tonnesPerYear" name="tonnesPerYear" unitType="massFlux">
> +
> + <!--massFlux-->
> + <unit id="kilogramsPerSecond" name="kilogramsPerSecond"
> unitType="massFlux" multiplierToSI="1">
> + <description>grams Per Year</description>
> + </unit>
> + <unit id="tonnesPerYear" name="tonnesPerYear" unitType="massFlux"
> multiplierToSI=".0000000000317">
> <description>tonnes Per Year</description>
> </unit>
> - <unit id="gramsPerYear" name="gramsPerYear" unitType="massFlux">
> + <unit id="gramsPerYear" name="gramsPerYear" unitType="massFlux"
> multiplierToSI=".0000317">
> <description>grams Per Year</description>
> </unit>
>
> <!--numeric densities-->
> - <unit id="numberPerMeterSquared" name="numberPerMeterSquared"
> unitType="arealDensity" multiplierToSI="1" abbreviation="#/m^2">
> + <unit id="numberPerMeterSquared" name="numberPerMeterSquared"
> unitType="arealDensity" multiplierToSI="1">
> <description>number per meter squared</description>
> </unit>
> - <unit id="numberPerKilometerSquared" name="numberPerKilometerSquared"
> unitType="arealDensity" multiplierToSI="100000000" abbreviation="#/km^2">
> + <unit id="numberPerKilometerSquared" name="numberPerKilometerSquared"
> unitType="arealDensity" multiplierToSI="1000000" >
> <description>number per kilometer squared</description>
> </unit>
> - <unit id="numberPerMeterCubed" name="numberPerMeterCubed"
> unitType="volumetricDensity" multiplierToSI="1" abbreviation="#/m^3">
> - <description>number per meter cubed</description>
> - </unit>
> -
> -<!-- fundamental non-SI units -->
> - <unit id="inch" name="inch" parentSI="meter" abbreviation="in"
> multiplierToSI="0.0254">
> - <description>An imperial measure of length</description>
> - </unit>
> - <unit id="Foot_US" name="Foot_US" parentSI="meter" abbreviation="usft"
> multiplierToSI=".3048">
> - <description>12 inches</description>
> - </unit>
> - <unit id="foot" name="foot" parentSI="meter" abbreviation="ft"
> multiplierToSI=".3048">
> - <description>12 inches</description>
> - </unit>
> - <unit id="Foot_Gold_Coast" name="Foot_Gold_Coast" parentSI="meter"
> abbreviation="gcft" multiplierToSI=".3047997101815088">
> - <description>12 inches</description>
> - </unit>
> - <unit id="fathom" name="fathom" parentSI="meter"
> multiplierToSI="1.8288">
> - <description>6 feet</description>
> - </unit>
> - <unit id="nauticalMile" name="nauticalMile" parentSI="meter"
> multiplierToSI="1852">
> - <description>natical mile</description>
> - </unit>
> - <unit id="yard" name="yard" parentSI="meter" abbreviation="yard"
> multiplierToSI=".9144">
> - <description>3 feet</description>
> - </unit>
> - <unit id="Yard_Indian" name="Yard_Indian" parentSI="meter"
> multiplierToSI=".914398530744440774">
> - <description></description>
> - </unit>
> - <unit id="Link_Clarke" name="Link_Clarke" parentSI="meter"
> multiplierToSI=".2011661949">
> - <description></description>
> - </unit>
> - <unit id="Yard_Sears" name="Yard_Sears" parentSI="meter"
> multiplierToSI=".91439841461602867">
> - <description></description>
> - </unit>
> - <unit id="mile" name="mile" parentSI="meter" abbreviation="mile"
> multiplierToSI="1609.344">
> - <description>5280 ft or 1609.344 meters</description>
> - </unit>
> - <unit id="pint" name="pint" parentSI="liter" abbreviation="pint"
> multiplierToSI=".473176">
> - <description>this is a US liquid pint</description>
> - </unit>
> - <unit id="pound" name="pound" parentSI="gram" abbreviation="lbs"
> multiplierToSI="453.6">
> - <description>1 pound in the Avoirdupois (commerce)
> scale</description>
> - </unit>
> - <unit id="ton" name="ton" parentSI="gram" abbreviation="ton"
> multiplierToSI="907200">
> - <description>standard US (short) ton = 2000 lbs</description>
> - </unit>
> - <unit id="squareFoot" name="squareFoot" unitType="area">
> - <description>12 inches squared</description>
> - </unit>
> - <unit id="squareYard" name="squareYard" unitType="area">
> - <description>36 inches squared</description>
> - </unit>
> - <unit id="squareMile" name="squareMile" unitType="area">
> - <description>1 mile squared</description>
> - </unit>
> - <unit id="cubicInch" name="cubicInch" unitType="volume">
> - <description>cubic inch</description>
> - </unit>
> -
> -<!-- derived non-SI units -->
>
> - <unit id="fahr" name="fahrenheit" parentSI="k" abbreviation="F"
> multiplierToSI="0.55555555555555555" constantToSI="-17.777777777777777777">
> - <description>An obsolescent unit of temperature still used in popular
> meteorology</description>
> + <!--volumetricDensity-->
> + <unit id="numberPerMeterCubed" name="numberPerMeterCubed"
> unitType="volumetricDensity" multiplierToSI="1">
> + <description>number per meter cubed</description>
> </unit>
> </stmml:unitList>
>
>
>
> _______________________________________________
> eml-cvs mailing list
> eml-cvs at ecoinformatics.org
> http://www.ecoinformatics.org/mailman/listinfo/eml-cvs
--
-----------------------
Chad Berkley
National Center for
Ecological Analysis
and Synthesis (NCEAS)
berkley at nceas.ucsb.edu
-----------------------
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