[CF-metadata] new standard names for flood simulation

From: Eizi TOYODA <toyoda>
Date: Fri, 7 Aug 2015 01:31:03 +0900

Dear all,

I would like to propose some new standard names for flood simulation, on
behalf of Japanese colleagues working for hydrology.

River authorities are responsible for doing simulation of floods due to
breach of river banks, which used to be published only in paper maps.
Right now we plan to recommend publishing raster data in CF format.
Following is the example of CDL for such data.
https://gist.github.com/etoyoda/1ad78c1df01126c3e731

That includes new variables as follows. Thanks in advance for your
consideration of our request.

Best Regards,
Eizi

--
Eiji (aka Eizi) TOYODA, Japan Meteorological Agency
http://www.google.com/profiles/toyoda.eizi
1) flood_depth
The flood_depth is the vertical distance
between the surface of the flood water
and the surface of ground,
as measured at a given point in space.
Canonical Units: m
2) flood_water_speed
Speed is the magnitude of velocity.
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: m.s-1
3) eastward_flood_water_velocity
A velocity is a vector quantity.
"Eastward" indicates a vector component
which is positive when directed eastward (negative westward).
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: m.s-1
4) northward_flood_water_velocity
A velocity is a vector quantity.
"Northward" indicates a vector component which is positive when directed
northward (negative southward).
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: m.s-1
5) ground_altitude
The ground_altitude is the geometric height of
the upper boundary of the solid Earth above the geoid,
which is the reference geopotentisal surface.
The geoid is similar to mean sea level.
Canonical Units: m
Rationale: the CF standard name table already has
a name ``surface_altitude'', but in this case the surface is defined as
the lower boundary of the atmosphere.
In the flood water simulation the levels do not match.
6) flood_arrival_time
The flood_arrival_time is the time elapsed
from the break of levee (origin of flood water simulation)
until the flood water arrives to a given point in space.
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: s
7) time_at_maximum_flood_depth
The time_at_maximum_flood_depth is the time elapsed
from the break of levee (origin of flood water simulation)
until the time when the flood depth reaches to the maximum
during the simulation for a given point in space.
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: s
8) time_when_flood_water_goes_below_threshold
The time_when_flood_water_goes_below_threshold is the time elapsed
from the break of levee (origin of flood water simulation)
until the time when the flood depth goes below
a given threshold for a given point in space.
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: s
9) time_span_with_flood_depth_above_threshold
The time_span_with_flood_depth_above_threshold is the time elapsed
from the time when the flood depth firstly goes above a given threshold
until the time when the flood depth finally goes below the threshold
for a given point in space.
The flood_water is water that covers land
which is normally not covered by water.
Canonical Units: s
10) hazard_area_flags
The hazard_area_flags is a set of flags representing
different types of hazards for a given point in space.
Canonical Units: N/A
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Received on Thu Aug 06 2015 - 10:31:03 BST