[CF-metadata] Standard names October update

From: Alison Pamment - UKRI STFC <alison.pamment>
Date: Tue, 16 Oct 2018 14:19:44 +0000

Dear All,

The standard name table has been updated today. The current version is now Version 60, dated 16 October 2018. The changes have also been published on the NERC Vocabulary Server. All changes are listed at the end of this message.

Paul Halloran 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 of the standard name table is planned for 12th November.

N.B. Since completing the update I have discovered minor typographical errors in the definitions of a few of the newly added platform names. These will be corrected in the next update. (Full details are available in the 'comments' at http://cfeditor.ceda.ac.uk/proposals/1?status=active&namefilter=platform&proposerfilter=&descfilter=&unitfilter=&yearfilter=&commentfilter=&filter+and+display=Filter).

Best wishes,
Alison

---
V60 standard name changes
1. New names
a. Sea surface wave names proposed by Andrew Saulter.
charnock_coefficient_for_surface_roughness_length_for_momentum_in_air (Canonical units: 1)
sea_surface_mean_square_crosswave_slope (Canonical units: 1)
sea_surface_mean_square_upwave_slope (Canonical units: 1)
sea_surface_mean_square_upwave_slope_direction (Canonical units: degree)
sea_surface_wave_mean_square_slope (Canonical units: 1)
sea_surface_wave_mean_square_x_slope (Canonical units: 1)
sea_surface_wave_mean_square_y_slope (Canonical units: 1)
b. Platform names proposed by Jim Biard.
platform_heave_down (Canonical units: m)
platform_heave_rate_down (Canonical units: m s-1)
platform_heave_rate_up (Canonical units: m s-1)
platform_heave_up (Canonical units: m)
platform_pitch_fore_down (Canonical units: degree)
platform_pitch_fore_up (Canonical units: degree)
platform_pitch_rate_fore_down (Canonical units: degree s-1)
platform_pitch_rate_fore_up (Canonical units: degree s-1)
platform_roll_rate_starboard_down (Canonical units: degree s-1)
platform_roll_rate_starboard_up (Canonical units: degree s-1)
platform_roll_starboard_down (Canonical units: degree)
platform_roll_starboard_up (Canonical units: degree)
platform_surge (Canonical units: m)
platform_surge_aft (Canonical units: m)
platform_surge_fore (Canonical units: m)
platform_surge_rate (Canonical units: m s-1)
platform_surge_rate_aft (Canonical units: m s-1)
platform_surge_rate_fore (Canonical units: m s-1)
platform_sway (Canonical units: m)
platform_sway_port (Canonical units: m)
platform_sway_rate (Canonical units: m s-1)
platform_sway_rate_port (Canonical units: m s-1)
platform_sway_rate_starboard (Canonical units: m s-1)
platform_sway_starboard (Canonical units: m)
platform_yaw_fore_port (Canonical units: degree)
platform_yaw_fore_starboard (Canonical units: degree)
platform_yaw_rate_fore_port (Canonical units: degree s-1)
platform_yaw_rate_fore_starboard (Canonical units: degree s-1)
c. Fugacity name proposed by Paul Halloran.
fugacity_of_carbon_dioxide_in_sea_water (Canonical units: Pa)
2. New Aliases
Three new aliases were added to remove the term 'angle' from existing pitch|yaw|roll names.
platform_pitch_angle -> platform_pitch 
platform_yaw_angle -> platform_yaw 
platform_roll_angle -> platform_roll
3. Modifications to definitions of existing names
a. Platform names
In the discussion of the platform names it was agreed that the definition of 'platform' should be expanded to read 'A "platform" is a structure or vehicle that serves as a base for mounting sensors. Platforms include, but are not limited to, satellites, aeroplanes, ships, buoys, instruments, ground stations, and masts.' This text was added to the definitions of 17 existing names (in addition to the new names and aliases):
angle_of_rotation_from_solar_azimuth_to_platform_azimuth
platform_azimuth_angle
platform_course
platform_heave
platform_heave_rate
platform_id
platform_name
platform_orientation
platform_pitch_rate
platform_roll_rate
platform_speed_wrt_air
platform_speed_wrt_ground
platform_speed_wrt_sea_water
platform_view_angle
platform_yaw_rate
platform_zenith_angle 
relative_platform_azimuth_angle
In addition, the definitions of platform_heave[_rate], platform_pitch[_rate], platform_roll[_rate] and platform_yaw[rate] were updated for consistency with those of the new heave/pitch/roll/yaw names.
The definition of platform_orientation was changed to read 'Orientation is the clockwise angle with respect to North of the longitudinal (front-to-back) axis of the platform, which may be different to the platform course (which has the standard name platform_course).'
The definition of platform_course was changed to read 'Course is the clockwise angle with respect to North of the nominal forward motion direction of the platform (not necessarily the same as the direction in which it is pointing, called "platform_orientation").'
Previously there was no description of the reference direction or sign convention for these names.
b. Partial pressure names
During the discussion of the new fugacity name, Jim Orr suggested an improved description of the partial pressure of a gaseous constituent of air: 'The partial pressure of a gaseous constituent of air is the pressure that it would exert if all other gaseous constituents were removed, assuming the volume, the temperature, and its number of moles remain unchanged.' This text was substituted into the definitions of 12 existing names:
partial_pressure_of_carbon_dioxide_in_sea_water
partial_pressure_of_methane_in_sea_water
surface_carbon_dioxide_abiotic_analogue_partial_pressure_difference_between_sea_water_and_air 
surface_carbon_dioxide_natural_analogue_partial_pressure_difference_between_sea_water_and_air 
surface_carbon_dioxide_partial_pressure_difference_between_air_and_sea_water 
surface_carbon_dioxide_partial_pressure_difference_between_sea_water_and_air 
surface_molecular_oxygen_partial_pressure_difference_between_sea_water_and_air 
surface_partial_pressure_of_carbon_dioxide_abiotic_analogue_in_sea_water 
surface_partial_pressure_of_carbon_dioxide_in_air 
surface_partial_pressure_of_carbon_dioxide_in_sea_water 
surface_partial_pressure_of_carbon_dioxide_natural_analogue_in_sea_water 
water_vapor_partial_pressure_in_air
---
------
Alison Pamment                                 Tel: +44 1235 778065
NCAS/Centre for Environmental Data Archival    Email: alison.pamment at stfc.ac.uk
STFC Rutherford Appleton Laboratory     
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.

Received on Tue Oct 16 2018 - 08:19:44 BST