Hi Aaike,

These values are indeed meant to capture the range of possible elevation/depth or the extent of them. If there upper and lower bounds are the same, then the values in the minimum and maximum should be the same.

Cheers,

John

On Mon, Jul 2, 2012 at 8:38 AM, Aaike De Wever aaike.dewever@naturalsciences.be wrote:

Dear all,

Following on my previous email, I also had a question on the following terms:

• minimumElevationInMeters - maximumElevationInMeters

http://rs.tdwg.org/dwc/terms/minimumElevationInMeters - http://rs.tdwg.org/dwc/terms/maximumElevationInMeters The lower limit of the range of elevation (altitude, usually above sea level), in meters.

• minimumDepthInMeters - maximumDepthInMeters

http://rs.tdwg.org/dwc/terms/minimumDepthInMeters - http://rs.tdwg.org/dwc/terms/maximumDepthInMeters The lesser/greater depth of a range of depth below the local surface, in meters.

Both for elevation and depth there are two terms representing the minimum and maximum, which I figure are meant to provide a range. As in most cases, for point data, there will be only one elevation and depth value, I was wondering what is the recommended best practice for these terms. Should one use minimum or maximum or provide the same value for both terms?

Any advise on this would be appreciated!

With best regards,

Aaike De Wever BioFresh Science Officer Freshwater Laboratory, Royal Belgian Institute of Natural Sciences Vautierstraat 29, 1000 Brussels Belgium tel.: +32(0)2 627 43 90 mobile.: +32(0)486 28 05 93 email: aaike.dewever@naturalsciences.be skype: aaikew AIM: aaike@mac.com LinkedIn: http://be.linkedin.com/in/aaikedewever BioFresh: http://www.freshwaterbiodiversity.eu/ and http://data.freshwaterbiodiversity.eu/ Belgian Biodiversity Platform: http://www.biodiversity.be

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