Hello Jonathan,
good questions. The terrestrial water amount certainly includes ice, and I believe it includes ice sheets (see, e.g.
https://www.aaas.org/news/changes-land-water-storage-and-melting-ice-sheets-drive-polar-motion ), but might exclude floating ice sheets. Jean-Yves, can you comment on whether TWS should include floating ice shelves and/or ice sheets?
For lightning flashes, I agree: frequency_of_lightning_flashes_per_unit_area is better,
regards,
Martin
________________________________
From: CF-metadata <cf-metadata-bounces at cgd.ucar.edu> on behalf of Jonathan Gregory <j.m.gregory at reading.ac.uk>
Sent: 02 May 2018 17:37
To: cf-metadata at cgd.ucar.edu
Subject: [CF-metadata] Fwd: PMIP: standard names for the CMIP6 data request: tws, lighning flashes, wetland emissions, etc
Dear Martin
> (1.1) mrtws Terrestrial Water Storage [kg m-2]
>
> land_based_water_amount
>
> ?This quantity is often known as Terrestrial Water Storage.. It includes surface water (water in rivers, wetlands, lakes, snow, vegetation and reservoirs) and subsurface water (soil moisture, groundwater)?
That's good, but I think that land_water_amount would be better. The phrase
"land water(s)" is sometimes used for terrestrial water storage, and it is
analogous to land_ice. However, that raises the question of whether land_ice
is specifically excluded from this quantity. I think it might be, and if so,
should it be land_liquid_water? Is permafrost also included? - if so, we will
have to be even more precise in order to include frozen water in soil and snow
but exclude glaciers and ice sheets!
> (1.2) Flashrate Lightning flash rate [km-2 s-1]
>
> frequency_of_lightning_flash_per_unit_area
I suppose that "flashes" might sound more natural.
Best wishes
Jonathan
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Received on Sat May 05 2018 - 14:49:08 BST
