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[CF-metadata] Suggestion for standard names for bottom current and due to tides and Stokes drift

From: Jonathan Gregory <j.m.gregory>
Date: Tue, 15 Oct 2019 17:35:21 +0000

Dear Marcelo

These look fine to me, thanks. Just to be clear - you're *not* proposing
at_bottom, are you? I agree with you that at_sea_floor would be the right
phrase to use.

Best wishes

Jonathan

----- Forwarded message from Marcelo Andrioni <marceloandrioni at gmail.com-----

Date: Mon, 14 Oct 2019 22:02:50 -0300
From: Marcelo Andrioni <marceloandrioni at gmail.com>
To: cf-metadata at cgd.ucar.edu
Subject: [CF-metadata] Suggestion for standard names for bottom current and
        due to tides and Stokes drift

Hello,

I would like to suggest the inclusion of standard names for u, v,
speed and direction for bottom current and due to tides and Stokes
drift:

An example of model output with bottom velocity is the HYCOM NCODA forecast:
https://tds.hycom.org/thredds/catalog/GLBv0.08/expt_93.0/data/forecasts/runs/catalog.html?dataset=GLBv0.08/expt_93.0/data/forecasts/runs/FMRC_RUN_2019-10-13T12:00:00Z
water_u_bottom (m/s) = Eastward Water Velocity =
eastward_sea_water_velocity_at_bottom
water_v_bottom (m/s) = Northward Water Velocity =
northward_sea_water_velocity_at_bottom

based on existing variables:
sea_water_potential_temperature_at_sea_floor
sea_water_temperature_at_sea_floor
sea_water_salinity_at_sea_floor
sea_water_pressure_at_sea_floor

my suggestion would be:
eastward_sea_water_velocity_at_sea_floor
northward_sea_water_velocity_at_sea_floor
sea_water_to_direction_at_sea_floor
sea_water_speed_at_sea_floor

An example of model output with currents due to tides and Stokes drift
is the Mercator Forecast:
http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=GLOBAL_ANALYSIS_FORECAST_PHY_001_024

based on existing variables:
eastward_sea_water_velocity_assuming_no_tide
northward_sea_water_velocity_assuming_no_tide
ocean_vertical_momentum_diffusivity_due_to_tides
ocean_vertical_tracer_diffusivity_due_to_tides

my suggestion would be:
eastward_sea_water_velocity_due_to_tides
northward_sea_water_velocity_due_to_tides
sea_water_to_direction_due_to_tides
sea_water_speed_due_to_tides

Stokes drift is present in the current CF table with:
sea_surface_wave_stokes_drift_x_velocity
sea_surface_wave_stokes_drift_y_velocity
I think it could help to add
sea_surface_wave_stokes_drift_eastward_velocity
sea_surface_wave_stokes_drift_northward_velocity
as aliases to make it clear it is zonal and meridional currents, and
not just along the grid X and Y dimensions.

Thank you very much.
-- 
Marcelo Andrioni
marceloandrioni at gmail.com
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----- End forwarded message -----
Received on Tue Oct 15 2019 - 11:35:21 BST

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