[CF-metadata] PMIP: standard names for the CMIP6 data request: tws, lighning flashes, wetland emissions, etc

From: Martin Juckes - UKRI STFC <martin.juckes>
Date: Mon, 30 Apr 2018 08:35:56 +0000

Dear All,


Here are a final 12 standard names required for the PMIP data request (in addition to names associated with isotopes and carbon and nitrogen cycles which were submitted recently).

  1. Misc

(1.1) mrtws Terrestrial Water Storage [kg m-2]


There is a ?surface_water_amount? name, which is defined as the water at the lower boundary of the atmosphere, excluding canopy and vegetation -- this could correspond to the water in rivers, wetlands, lakes, snow and reservoirs listed in the definition below. There is also ?mass_content_of_water_in_soil?. The phrase ?water_amount? appears to be the most common usage in the standard name table for expressing a mass per unit area.


Perhaps:

land_based_water_amount

?This quantity is often known as Terrestrial Water Storage.. It includes surface water (water in rivers, wetlands, lakes, snow, vegetation and reservoirs) and subsurface water (soil moisture, groundwater)?


(1.2) Flashrate Lightning flash rate [km-2 s-1]

cf. number_of_icebergs_per_unit_area; number_of_observations

There are no standard names for frequency of events, but we can adapt the ?number_of_? construction.


Proposed name:

frequency_of_lightning_flash_per_unit_area

A lightning flash is a compound event, usually consists of several discharges.


2. Wetland parameters

===================


(2.1) wetlandCH4 Grid averaged methane emissions from wetlands [kg m-2 s-1]

surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production is recently approved. In other existing names we have ?biological_processes? to cover production and consumption. The CF area type table now includes the area type "wetland". This term is intended to be the sum of the production term described by

surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production
 and a consumption term (surface_downward_mass_flux_of_methane_due_to_emission_from_wetland_biological_consumption).


surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_processes

The emission from biological processes is the net emission resulting from combined production and consumption.



3. Stratospheric optical depths


Following existing name stratosphere_mole_content_of_nitrogen_dioxide and atmosphere_absorption_optical_thickness_due_to_dust_ambient_aerosol_particles and atmosphere_optical_thickness_due_to_sulfate_ambient_aerosol_particles


(3.1) od550aerso Stratospheric Optical depth at 550 nm (all aerosols) 2D-field (here we limit the computation of OD to the stratosphere only) [1]


stratosphere_optical_thickness_due_to_ambient_aerosol_particles


With radiation_wavelength set to 550nm

(3.2) od550so4so Stratospheric Optical depth at 550 nm (sulphate only) 2D-field (here we limit the computation of OD to the stratosphere only) [1]


stratosphere_optical_thickness_due_to_sulfate_ambient_aerosol_particles


With radiation_wavelength set to 550nm


4. Dust


Based on atmosphere_absorption_optical_thickness_due_to_dust_ambient_aerosol_particles


(4.1) depdust Total Deposition Rate of Dust [kg m-2 s-1]


surface_downward_mass_flux_of_dust_ambient_aerosol_particles

It might make more sense to ask for mass flux of dry aerosols here.


(4.2) sedustCI Sedimentation Flux of dust mode coarse insoluble [kg m-2 s-1]

The adjective "coarse" has been left out of the standard name because it appears to be implicit in the term "dust".


surface_downward_mass_flux_of_insoluble_dust_ambient_aerosol_particles


(4.3) lwsrfasdust All-sky Surface Longwave radiative flux due to Dust


surface_net_downward_longwave_flux_due_to_dust_ambient_aerosol [W m-2]


(4.4) lwsrfcsdust Clear-sky Surface Longwave radiative flux due to Dust


surface_net_downward_longwave_flux_due_to_dust_ambient_aerosol_assuming_clear_sky [W m-2]


(4.5) lwtoacsdust Clear Sky Longwave Radiative Forcing due to Dust at TOA


toa_net_downward_longwave_flux_due_to_dust_ambient_aerosol_assuming_clear_sky [W m-2]


(4.6) swsrfasdust All-sky Surface Shortwave radiative flux due to Dust


As (4.3), but for shortwave.


(4.7) swsrfcsdust Clear-sky Surface Shortwave radiative flux due to Dust


As (4.4), but for shortwave


regards,

Martin
Received on Mon Apr 30 2018 - 02:35:56 BST