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CSIRO-enviro-informatics / vocab-content

For managing the content of the CSIRO Linked Data Registry http://registry.it.csiro.au/
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Environmental Property Term: Evaporation #4

Closed ashleysommer closed 6 years ago

ashleysommer commented 7 years ago

Proposal:

Add a new term

http://registry.it.csiro.au/def/environment/property/evaporation

I was using Evapotranspiration for this, but that is not correct.

From: http://www.bom.gov.au/watl/eto/about.shtml

"Evaporation is not the same as evapotranspiration"

SILO weather stations API provides actual "Class A Evaporation" values, in millimeters. Evaporation as a property is not defined in any registry that I've searched across.

https://www.longpaddock.qld.gov.au/silo/data_format.html

dr-shorthair commented 7 years ago

Do #8 first?

dr-shorthair commented 7 years ago

I found a definition here: http://www.bom.gov.au/watl/evaporation/

"Evaporation is the amount of water which evaporates from an open pan called a Class A evaporation pan. The rate of evaporation depends on factors such as cloudiness, air temperature and wind speed. Measurements are made by the addition or subtraction of a known amount of water, which then tells us how much water has evaporated from the pan."

dr-shorthair commented 7 years ago

http://registry.it.csiro.au/sandbox/environment/property/evaporation ?

jyucsiro commented 7 years ago

Would adding some general notion of evaporation be helpful also? e.g. from https://water.usgs.gov/edu/watercycleevaporation.html "Evaporation is the process by which water changes from a liquid to a gas or vapor. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor."

dr-shorthair commented 7 years ago

I see why you might suggest that. But I think that the general concept 'evaporation' is probably a physical process. The vocabulary is of what QUDT calls 'quantity kinds' which have a defined dimensionality which can then be matched with a suitable uom, so not clear that a physical process definition belongs?