[CF-metadata] new standard names for flood simulation

From: Eizi TOYODA <toyoda>
Date: Tue, 11 Aug 2015 18:08:15 +0900

Hi Chris and all,

Now I think the word "flood_water" can refer to temporary water body on the
land surface, regardless the cause is river overflow, storm surge, or
tsunami. I've talked with a storm surge expert in JMA. He says it is okay
for him, and probably for tsunami expert.

That may not be perfect but (I hope) is a meaningful effort to combat with
creeping proliferation of names.

 - River water simulation is often done on tree-like network, not in
grids. That's probably the reason we (CF community) didn't talk much about
river water (in non-flooding state) more than runoff, which also belongs to
the land surface model.
 - I hope people (if any) are not so uncomfortable with using "sea_water"
for estuary water....

-- 
Best Regards,
Eizi TOYODA, Japan Meteorological Agency
Assoc Member, WMO/CBS/IPET-DRMM
Best Regards,
--
Eiji (aka Eizi) TOYODA
http://www.google.com/profiles/toyoda.eizi
On Tue, Aug 11, 2015 at 1:10 AM, Chris Barker <chris.barker at noaa.gov> wrote:
> On Mon, Aug 10, 2015 at 1:50 AM, Eizi TOYODA <toyoda at npd.kishou.go.jp>
> wrote:
>
>> 1. Flood water and seawater are both liquid water on top of solid earth
>> surface.  Some properties are common in terms of physics as you suggest.
>>
>
> indeed -- I somehow never notes that the standard names use "sea_water"
> rather than just "water". So yes, you wouldn't want to use that for
> flooding in river, etc, where it is indeed, not seawater.
>
> though may it's time to introduce "water" names, rather than adding
> "flood+water", then "river_water", then "estuary_water", etc...
>
> But there is difference in nature:
>>
>>  - The sea has always seawater in the normal state.
>>     Few people think about when a basin or a bay dries up.
>>
>
> actually, wetting-=drying in tidal areas is often a big deal, as is storm
> surge, so it's not out of the question to use the same names for these.
>
> I don't see any names with "storm" or "surge" in them -- I wonder what the
> storm surge modelers use?
>
> So there are concepts only used in flood simulation, not in oceanography.
>> It might look awkward or weird if we use sea_water instead of flood_water:
>>
>
> yes, because it's not, in fact sea water generally...
>
>
>> 6) sea_water_arrival_time
>> 7) time_at_maximum_sea_water_depth
>> 8) time_when_sea_water_goes_below_threshold
>> 9) time_span_with_sea_water_depth_above_threshold
>>
>> 2. Current standard name table includes names including land_ice,
>> surface_snow, surface_snow_and_ice, all are layer made of H2O temporarily
>> on top of solid earth.  For me it is not unnatural to see flood water in
>> line with them.
>>
>
> well, trying to keep name proliferation down, but yes, clearly the
> sea_water names are not appropriate.
>
>
>> 3. Current standard name table also includes quantities related to
>> runoff, which could be substituted by sea water velocity.  It looks like
>> the CF community in the past did not try to convert the terminology of
>> hydrologists into that of oceanography.
>>
>
> Indeed -- it started with climate modeling, and extended to general
> oceanographic and meteorological modeling, but hydrology is new.
>
> I'd rather see some more cross-discipline names, but adding a set for
> hydrological modeling is a fine idea as well.
>
> -Chris
>
>
> --
>
> Christopher Barker, Ph.D.
> Oceanographer
>
> Emergency Response Division
> NOAA/NOS/OR&R            (206) 526-6959   voice
> 7600 Sand Point Way NE   (206) 526-6329   fax
> Seattle, WA  98115       (206) 526-6317   main reception
>
> Chris.Barker at noaa.gov
>
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Received on Tue Aug 11 2015 - 03:08:15 BST