[LTER-im] Re: Unit Dictionanry / measurement Scale mapping has anyone done this?

[Wade Sheldon jr]

David,

I agree with Tim. I'm still working on this, but I'm not making a
simplistic 1:1 map based on units for the same reason he cites.

As a first step I'm trying to create a multiple-criteria lookup table
based on units and my classifications for data type (storage type),
variable type (semantic type), numerical type
(continuous/discrete/angular/none) and the EML measurementScale and
corresponding sub-elements. If that proves too awkward or problematic to
automate I may just have to resort to adding a second eml-centric
numerical classification system for attributes and doing a one time
conversion for our existing data sets.

--Wade Sheldon

----- Original Message -----
From: "Tim Bergsma" <tbergsma at kbs.msu.edu>
To: "David Blankman" <dblankman at lternet.edu>
Cc: <im at lternet.edu>; "Eml-Dev (E-mail)" <eml-dev at ecoinformatics.org>
Sent: Wednesday, May 21, 2003 8:55 AM
Subject: [LTER-im] Re: Unit Dictionanry / measurement Scale mapping has
anyone done this?


> David,
>
> I haven't done any such mapping yet.  Such a thing would be useful,
but
> should not be deployed unsupervised.  My favorite example is elevation
> relative to sea level, which can be measured in meters but is clearly
> not ratio.
>
> Best regards,
>
> Tim.
>
> > David Blankman wrote:
> >
> > Have any of you done a mapping of eml unitDictionary units to
> > measurementScale type, that is, something that looks like:
> >
> > unit                  measurementScale
> > meter                        ratio
> > celsius                       internal
> >
> > If so, could you email me a file that contains those mappings.
> >
> > David
> >
> > --
> > David E. Blankman
> > Database Integration Developer
> > Long Term Ecological Research Network Office
> > University of New Mexico
> > 801 University, SE #104
> > Albuquerque, NM 87106
> > (505) 272-7346 / (505) 272-7080 FAX
>
> --
> Tim Bergsma
> LTER Information Manager
> W.K. Kellogg Biological Station
> Michigan State University
> Hickory Corners, MI   49060
> 269/671-2337
> tbergsma at kbs.msu.edu
> http://lter.kbs.msu.edu
>
> Long-Term Ecological Research Network group "im"
>
>