Met Office Unified Model

Website: http://badc.nerc.ac.uk/browse/badc/ukmo-um. Requires username/password (one per person per project).

Documentation: http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dataent_UM

Model outputs from pre-2011 use individual files for each variable with a unique ID (stash code - see table below). For 2011 onwards, the outputs are stored as a single file for each model run. As such, the stash codes are largely superseded by the variable names. Some documentation exists here:

http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__DE_5b70af60-2097-11e3-a39b-00163e251233 (NAE outputs)

http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__DE_f693d60c-208d-11e3-ad34-00163e251233 (Global outputs)

I (Pierre) am currently loading the following variables for use with HEATING_ON or HEATING_CALCULATED for the 2011 onwards data:

Variable nameLong nameDimensionsUnits
longitude latitude degrees
latitude latitude degrees
x-wind x wind component (with respect to grid) t_1, ht, latitude, longitude ms-1
y-wind y wind component (with respect to grid) t_1, ht, latitude, longitude ms-1
solar Net short wave radiation flux t_3, surface, latitude, longitude W m-2
longwave Net long wave radiation flux t_3, surface, latitude, longitude W m-2
sh Sensible heat flux t_1, surface, latitude, longitude Wm-2
lh Latent heat flux t_1, surface, latitude, longitude Wm-2
rh Relative humidity t_1, ht, latitude, longitude %
precip Total precipitation rate t_1, surface, latitude, longitude kg m-2 s-1
p_4 or p_3 Pressure t_1, msl, latitude, longitude Pa
temp Temperature T t_1, surface, latitude, longitude Celsius

Precipitation needs to be converted to m/s (divide by freshwater density 1000kg m-3). As with the NCEP data, I'm calculating evaporation from the latent heat and subtracting it from the precipitation. I then set evaporation to zero and use precipitation-evaporation for the precipitation variable.

AcronymsLong name
AP analysis, pressure levels
AM analysis, model levels
FP forecast, pressure levels
FM forecast, model levels

AP

STASHSTASHmaster descriptionUnitsValid fromValid toCF Standard nameUsed?
23SNOW AMOUNT AFTER TIMESTEP KG/M2kg m-2 503snowfall_amount
23SNOW AMOUNT OVER LAND AFT TSTP KG/M2kg m-2505 snowfall_amount
24SURFACE TEMPERATURE AFTER TIMESTEPK surface_temperature
25BOUNDARY LAYER DEPTH AFTER TIMESTEPm atmosphere_boundary_layer_thickness
26ROUGHNESS LENGTH AFTER TIMESTEPm surface_roughness_length
30LAND MASK (LOGICAL: LAND=TRUE)1 407land_binary_mask
30LAND MASK (No halo) (LAND=TRUE)1500 land_binary_mask
31FRAC OF SEA ICE IN SEA AFTER TSTEP1503 sea_ice_area_fraction
31SEA ICE FRACTION AFTER TIMESTEP1 502sea_ice_area_fraction
33OROGRAPHY (/STRAT LOWER BC)m surface_altitude
1201NET DOWN SURFACE SW FLUX: SW TS ONLYW m-2 surface_net_downward_shortwave_fluxY?
1235TOTAL DOWNWARD SURFACE SW FLUXW m-2 surface_downwelling_shortwave_flux_in_airY?
2201NET DOWN SURFACE LW RAD FLUXW m-2 surface_net_downward_longwave_fluxY?
2207DOWNWARD LW RAD FLUX: SURFACEW m-2 407surface_downwelling_longwave_flux_in_airY?
3217SURFACE HEAT FLUX W/M2W m-2501 surface_upward_sensible_heat_fluxY?
3217SURFACE & B.LAYER HEAT FLUXES W/M2W m-2 500
3223SURF & BL TOTL MOISTURE FLUX KG/M2/Skg m-2 s-1 500upward_water_vapor_flux_in_air
3223SURFACE TOTAL MOISTURE FLUX KG/M2/Skg m-2 s-1501 surface_upward_water_flux
3224WIND MIX EN'GY FL TO SEA:SEA MN W/M2W m-2503 wind_mixing_energy_flux_into_sea_water
3224WIND MIXING EN'GY FLUX INTO SEA W/M2W m-2 502wind_mixing_energy_flux_into_sea_water
322510 METRE WIND U-COMPm s-1 500eastward_windY?
322510 METRE WIND U-COMPm s-1 500x_windY?
322510 METRE WIND U-COMP B GRIDm s-1501 eastward_windY?
322510 METRE WIND U-COMP B GRIDm s-1501 x_windY?
322610 METRE WIND V-COMPm s-1 500northward_windY?
322610 METRE WIND V-COMPm s-1 500y_windY?
322610 METRE WIND V-COMP B GRIDm s-1501 northward_windY?
322610 METRE WIND V-COMP B GRIDm s-1501 y_windY?
3234SURFACE LATENT HEAT FLUX W/M2W m-2 407surface_upward_latent_heat_fluxY?
3236TEMPERATURE AT 1.5MK air_temperatureY?
3237SPECIFIC HUMIDITY AT 1.5M1 407specific_humidity
3245RELATIVE HUMIDITY AT 1.5M% relative_humidityY?
3248FOG FRACTION AT 1.5 M 407
3250DEWPOINT AT 1.5M (K)K 407dew_point_temperature
3281RESIST S FOR SO4 DIS AFTER TS S/M 401407
3281VIS AT 1.5M (incl precip) M 606
3281VISIBILITY AT 1.5M M 503601
3316SURFACE TEMP ON SNOW-ADJSTD TILES K 405407
3316SURFACE TEMP ON TILES K 503
3321CANOPY WATER ON NON-ICE TILES KG/M2 405407
3321CANOPY WATER ON TILES KG/M2 503
3463WIND GUST 606
3476COMBINED BOUNDARY LAYER TYPE 606
4201LARGE SCALE RAIN AMOUNT KG/M2/TSkg m-2 stratiform_rainfall_amount
4202LARGE SCALE SNOW AMOUNT KG/M2/TSkg m-2 stratiform_snowfall_amount
4203LARGE SCALE RAINFALL RATE KG/M2/Skg m-2 s-1 stratiform_rainfall_rate
4204LARGE SCALE SNOWFALL RATE KG/M2/Skg m-2 s-1 stratiform_snowfall_rate
5201CONVECTIVE RAIN AMOUNT KG/M2/TSkg m-2 convective_rainfall_amount
5202CONVECTIVE SNOW AMOUNT KG/M2/TSkg m-2 convective_snowfall_amount
5205CONVECTIVE RAINFALL RATE KG/M2/Skg m-2 s-1 407convective_rainfall_rate
5206CONVECTIVE SNOWFALL RATE KG/M2/Skg m-2 s-1 407convective_snowfall_rate
5207PRESSURE AT CONVECTIVE CLOUD BASEPa 407air_pressure_at_convective_cloud_base
5208PRESSURE AT CONVECTIVE CLOUD TOPPa 407air_pressure_at_convective_cloud_top
5210ICAO HT OF CONVECTIVE CLOUD BASE 407
5211ICAO HT OF CONVECTIVE CLOUD TOP 407
5216TOTAL PRECIPITATION RATE KG/M2/Skg m-2 s-1 407precipitation_fluxY?
5226TOTAL PRECIPITATION AMOUNT KG/M2/TS
52622D CONVECTIVE CLOUD AMOUNT 503
5270SHALLOW CONVECTION INDICATOR 505
8208SOIL MOISTURE CONTENT
8209CANOPY WATER CONTENTkg m-2 407canopy_water_amount
8223SOIL MOISTURE CONTENT IN A LAYERkg m-2 moisture_content_of_soil_layer
8225DEEP SOIL TEMP. AFTER HYDROLOGY DEGKK soil_temperature
8236SNOW AMOUNT ON TILES KG/M2 503
9203LOW CLOUD AMOUNT 407
9204MEDIUM CLOUD AMOUNT 407
9205HIGH CLOUD AMOUNT 407
9210CLOUD BASE FOR COVER.GT.2.5 OCTA KFT 407
9212CLOUD BASE FOR COVER.GT.4.5 OCTA KFT 407
9216TOTAL CLOUD AMOUNT - RANDOM OVERLAP
9217TOTAL CLOUD AMOUNT MAX/RANDOM OVERLP 407
9218CLOUD FRACTION BELOW 1000 FT ASL 407
9221WET BULB FREEZING LEV HEIGHT (M) 407
15201U COMPNT OF WIND ON PRESSURE LEVELSm s-1 500eastward_wind
15201U WIND ON PRESSURE LEVELS B GRIDm s-1501 eastward_wind
15202V COMPNT OF WIND ON PRESSURE LEVELSm s-1 500northward_wind
15202V WIND ON PRESSURE LEVELS B GRIDm s-1501 northward_wind
1521250 METRE WIND U-COMPONENTm s-1 500eastward_wind
1521250 METRE WIND U-COMPONENTm s-1 500x_wind
1521250 METRE WIND U-COMPONENT B GRIDm s-1501 eastward_wind
1521250 METRE WIND U-COMPONENT B GRIDm s-1501 x_wind
1521350 METRE WIND V-COMPONENTm s-1 500northward_wind
1521350 METRE WIND V-COMPONENTm s-1 500y_wind
1521350 METRE WIND V-COMPONENT B GRIDm s-1501 northward_wind
1521350 METRE WIND V-COMPONENT B GRIDm s-1501 y_wind
15242W COMPNT (OF WIND) ON PRESSURE LEVSm s-1500 upward_air_velocity
16202GEOPOTENTIAL HEIGHT ON P LEV/P GRIDm606 geopotential_height
16202GEOPOTENTIAL HEIGHT: PRESSURE LEVELSm 601geopotential_height
16203TEMPERATURE ON P LEV/P GRIDK606 air_temperature
16203TEMPERATURE ON PRESSURE LEVELSK 601air_temperature
16204RELATIVE HUMIDITY ON PRESSURE LEVELS% 503relative_humidity
16204RELATIVE HUMIDITY WRT ICE ON P LVS 505601
16204RH WRT ICE ON P LEV/P GRID 606
16205WET BULB POTENTIAL TEMPERATURE 407
16205WET BULB POTENTIAL TEMPERATURE K 502
16222PRESSURE AT MEAN SEA LEVELPa air_pressure_at_sea_levelY?
20001RIVER WATER STORAGE M2 505505
20001THICKNESS : 1000-500 MB 601
20002GRIDBOX OUTFLOW KG/S 505505
20002THICKNESS : 1000-850 MB 601
20003GRIDBOX INFLOW KG/S 505505
20003WIND SPEEDS : 10 METRESm s-1601 wind_speed
20004RIVER OUTFLOW KG/M2/S 505505 Y?
20004WIND SPEEDS : PRESSURE LEVELm s-1601 wind_speed
20012CONVECTIVE CLOUD DEPTHS 601
20014PRECIPITATION SYMBOL 601
20015PRESENT WEATHER CODE 601
20020MAX WIND U-COMPONENT 601
20021MAX WIND V-COMPONENT 601
20022MAX WIND PRESSURE 601
20023MAX WIND ICAO HEIGHT 601
20024TROPOPAUSE PRESSUREPa601 tropopause_air_pressure
20025TROPOPAUSE TEMPERATUREK601 tropopause_air_temperature
20026TROPOPAUSE HEIGHTm601 tropopause_altitude
20027TROPOPAUSE ICAO HEIGHT 601
20028SNOW PROBABILITY 601
20033FREEZING LEVEL GEOPOTENTIAL HEIGHT 601
20034FREEZING LEVEL PRESSUREPa601 air_pressure_at_freezing_level
20035FREEZING LEVEL ICAO HEIGHT 601
20036-20C ISOTHERM GEOPOTENTIAL HEIGHT 601
20037-20C ISOTHERM PRESSURE 601
20038-20C ISOTHERM ICAO HEIGHT 601

AM

STASHSTASHmaster descriptionUnitsValid fromValid toCF Standard nameUsed?
2U COMPNT OF WIND AFTER TIMESTEPm s-1 eastward_windY?
2U COMPNT OF WIND AFTER TIMESTEPm s-1 x_windY?
3V COMPNT OF WIND AFTER TIMESTEPm s-1 northward_windY?
3V COMPNT OF WIND AFTER TIMESTEPm s-1 y_windY?
10SPECIFIC HUMIDITY AFTER TIMESTEP1 specific_humidity
30LAND MASK (LOGICAL: LAND=TRUE)1 407land_binary_mask
30LAND MASK (No halo) (LAND=TRUE)1500 land_binary_mask
33OROGRAPHY (/STRAT LOWER BC)m surface_altitude
90TOTAL AEROSOL (FOR VISIBILITY)
150W COMP OF WIND C-P TH LEVS:VAR DUMMY 401407
150W COMPNT OF WIND AFTER TIMESTEPm s-1500 upward_air_velocity
266BULK CLOUD FRACTION 500500
266BULK CLOUD FRACTION IN EACH LAYER 501
407PRESSURE AT RHO LEVELS AFTER TSPa500 air_pressureY?
408PRESSURE AT THETA LEVELS AFTER TSPa500 air_pressureY?
409SURFACE PRESSURE AFTER TIMESTEPPa500 surface_air_pressureY?
1004TEMPERATURE AFTER SW RAD INCREMENTSK air_temperatureY?
2004TEMPERATURE AFTER LW RAD INCREMENTSK air_temperatureY?
3216BOUNDARY LAYER HEAT FLUXES W/M2 501
3216RIB SURFACE LAYER (SEA ICE) 400.2
3219X-COMP OF SURF & BL WIND STRESS N/M2Pa 407surface_downward_eastward_stress
3220Y-COMP OF SURF & BL WIND STRESS N/M2Pa 407surface_downward_northward_stress
3222B.LAYER TOTAL MOISTURE FLUXS KG/M2/S 501
4205CLOUD LIQUID WATER AFTER LS PRECIP
4206CLOUD ICE CONTENT AFTER LS PRECIP
4222RAINFALL RATE OUT OF MODEL LEVELS 405407
5181TEMPERATURE INCR: convectionK s-1501 tendency_of_air_temperature_due_to_convection
5182SPECIFIC HUMIDITY INCR: convections-1501 tendency_of_specific_humidity_due_to_convection
5212CONV. CLOUD AMOUNT ON EACH MODEL LEV1 407convective_cloud_area_fraction_in_atmosphere_layer
5250UPDRAUGHT MASS FLUX (PA/S) 404.1407
5250UPDRAUGHT MASS FLUX (Pa/s) 503
6201U COMPONENT OF GRAVITY WAVE STRESSPa 501atmosphere_eastward_stress_due_to_gravity_wave_drag
6201X COMPONENT OF GRAVITY WAVE STRESSPa502 atmosphere_eastward_stress_due_to_gravity_wave_drag
6202V COMPONENT OF GRAVITY WAVE STRESSPa 501atmosphere_northward_stress_due_to_gravity_wave_drag
6202Y COMPONENT OF GRAVITY WAVE STRESSPa502 atmosphere_northward_stress_due_to_gravity_wave_drag
6223X COMPONENT OF GW SATURATION STRESS 502
6224Y COMPONENT OF GW SATURATION STRESS 502
9229RELATIVE HUMIDITY AFTER MAIN CLOUD 502 Y?
16004TEMPERATURE ON MODEL LEVELSK501503air_temperatureY?
16004TEMPERATURE ON THETA LEVELSK505 air_temperatureY?
16201GEOPOTENTIAL HEIGHT ON THETA LEVELSm503 geopotential_height
16201GEOPOTENTIAL HEIGHT:LAYER BOUNDARIESm 407geopotential_height