[CF-metadata] Standard name table June update

From: Alison Pamment - UKRI STFC <alison.pamment>
Date: Wed, 19 Jun 2019 14:30:00 +0000

Dear All,

The standard name table has been updated. The current version is now version 67, dated 18th June 2019. The changes have also been published on the NERC vocabulary server and are listed at the end of this message. A KWIC index for version 67 will be added to the website in the next few days.

Robert Fratantonio has been added to the list of standard name contributors: http://cfconventions.org/Data/cf-standard-names/docs/standard-name-contributors.html.

The next update to standard names is planned for 22nd July.

Best wishes,
Alison

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V67 standard name changes
1. New names
a. Radial velocity names proposed by Robert Fratantonio: 
direction_of_radial_vector_toward_instrument
radial_sea_water_velocity_toward_instrument             
radial_velocity_of_scatterers_toward_instrument             
b. Stresses at sea_water_surface (including under sea ice) proposed by Martin Juckes:
downward_x_stress_at_sea_water_surface             
downward_x_stress_correction_at_sea_water_surface             
downward_y_stress_at_sea_water_surface             
downward_y_stress_correction_at_sea_water_surface
c. Ocean chemistry names proposed by Daniel Neumann:       
mole_concentration_of_dissolved_molecular_nitrogen_in_sea_water             
mole_concentration_of_hydrogen_sulfide_in_sea_water
d. Name for quantifying missing observations proposed by Dan Hollis:
number_of_missing_observations             
 
2. New aliases
a. Proposed by Martin Juckes (replace all occurrences of 'omega' with 'lagrangian_tendency_of_air_pressure', make aliases for some duplicate names and order vector quantities as horizontal component followed by vertical component): 
product_of_geopotential_height_and_omega -> product_of_lagrangian_tendency_of_air_pressure_and_geopotential_height            
product_of_northward_wind_and_omega -> product_of_northward_wind_and_lagrangian_tendency_of_air_pressure            
product_of_eastward_wind_and_omega -> product_of_eastward_wind_and_lagrangian_tendency_of_air_pressure            
product_of_omega_and_air_temperature -> product_of_lagrangian_tendency_of_air_pressure_and_air_temperature            
product_of_air_temperature_and_omega -> product_of_lagrangian_tendency_of_air_pressure_and_air_temperature            
product_of_omega_and_specific_humidity -> product_of_lagrangian_tendency_of_air_pressure_and_specific_humidity            
product_of_specific_humidity_and_omega -> product_of_lagrangian_tendency_of_air_pressure_and_specific_humidity            
b. Proposed by Jonathan Gregory (remove 'eddy' from dianeutral mixing names):   
tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_eddy_dianeutral_mixing -> tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_dianeutral_mixing            
tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_eddy_dianeutral_mixing -> tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing            
tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_eddy_dianeutral_mixing -> tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing            
3. Modifications to definitions of existing names
a. Cross-references to the new 'toward_instrument' names were added to the definitions of three existing 'away_from_instrument' names:
direction_of_radial_vector_away_from_instrument
radial_sea_water_velocity_away_from_instrument             
radial_velocity_of_scatterers_away_from_instrument             
b. New text to describe 'volume_fraction' was added to the definitions of ten existing names: ' "Volume fraction" is used in the construction volume_fraction_of_X_in_Y, where X is a material constituent of Y. It is evaluated as the volume of X divided by the volume of Y (including X). It may be expressed as a fraction, a percentage, or any other dimensionless representation of a fraction.' This makes the definitions more consistent with existing mass_fraction and area_fraction names.
volume_fraction_of_clay_in_soil             
volume_fraction_of_condensed_water_in_soil             
volume_fraction_of_condensed_water_in_soil_at_critical_point             
volume_fraction_of_condensed_water_in_soil_at_field_capacity             
volume_fraction_of_condensed_water_in_soil_at_wilting_point             
volume_fraction_of_condensed_water_in_soil_pores             
volume_fraction_of_frozen_water_in_soil             
volume_fraction_of_oxygen_in_sea_water             
volume_fraction_of_sand_in_soil             
volume_fraction_of_silt_in_soil
The definition of ocean_volume_fraction was also amended and now reads ' "X_volume_fraction" means the fraction of volume occupied by X. It is evaluated as the volume of interest divided by the grid cell volume. It may be expressed as a fraction, a percentage, or any other dimensionless representation of a fraction. A data variable with standard name ocean_volume_fraction is used to store the fraction of a grid cell underlying sea-water, for example, where part of the grid cell is occupied by land or to record ocean volume on a model's native grid following a regridding operation.'
c. The definitions of two names were amended to include a new definition of 'sea_water_surface' provided by Martin Juckes: 'The phrase "sea water surface" means the upper boundary of the liquid portion of an ocean or sea, including the boundary to floating ice if present.' Previously the definitions referred to the lower boundary of the atmosphere, which is incorrect in areas of sea-ice.
net_downward_shortwave_flux_at_sea_water_surface           
sea_water_pressure_at_sea_water_surface  
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Alison Pamment                                                         Tel: +44 1235 778065
NCAS/Centre for Environmental Data Analysis    Email: alison.pamment at stfc.ac.uk
STFC Rutherford Appleton Laboratory     
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.

Received on Wed Jun 19 2019 - 08:30:00 BST