YOPP dataset is based on the operational ECMWF's ENS IFS forecast outputs. At the moment only control forecast outputs have been archived. There are 7 additional pressure levels being archived for YOPP consists of two different ECMWF outputs:
1) Operational ensemble forecast (ENS IFS)
- Medium-range forecast up to +360 hours (3-hourly up to 144 hours, then 6-hourly outputs)
- Archived in MARS as Control forecast (type=cf, stream=enfo, class=yp)
- 7 additional pressure levels to have a better vertical resolution in higher altitudes
...
2) Dedicated research run containing additional tendencies
Short-range forecast up to +48 hours (3-hourly outputs)
Archived in MARS as Forecast (type=fc, stream=oper, class=yp)
Research run that mimics very closely the operational control forecast of the ENS IFS was run from the 15.7. 2017 onwards
Additional tendencies from various physical and dynamical processes were archived on model levels (not available from ENS IFS run)
The differences for all parameters are on average small compared to the control forecast run, however, locally there can be differences in some parameters
The tendencies description: https://software.ecmwf.int/wiki/display/OIFS/How+to+control+OpenIFS+output
- List of the tendencies:
- U-tendency from dynamics
- V-tendency from dynamics
- T-tendency from dynamics
- q-tendency from dynamics
- T-tendency from radiation
- U-tendency from turbulent diffusion + subgrid orography
- V-tendency from turbulent diffusion + subgrid orography
- T-tendency from turbulent diffusion + subgrid orography
- q-tendency from turbulent diffusion
- U-tendency from subgrid orography
- V-tendency from subgrid orography
- T-tendency from subgrid orography
- U-tendency from convection (deep+shallow)
- V-tendency from convection (deep+shallow)
- T-tendency from convection (deep+shallow)
- q-tendency from convection (deep+shallow)
- Liquid Precipitation flux from convection
- Ice Precipitation flux from convection
- T-tendency from cloud scheme
- q-tendency from cloud scheme
- ql-tendency from cloud scheme
- qi-tendency from cloud scheme
- Liquid Precip flux from cloud scheme (stratiform)
- Ice Precip flux from cloud scheme (stratiform)
The dataset specification:
- Model runs: 00Z and 12Z
- Pressure levels: 1, 2, 3, 5, 7, 10, 20, 30, 50, 70, 100, 150, 200, 250, 300, 400, 500, 600, 700, 800, 850, 900, 925, 950, 1000 hPa
- Model levels: 1-91 Output frequency:
- Steps: 6 to 360 by 6 (extremes):
- 10 metre wind gust in the last 6 hours, Maximum temperature at 2 metres in the last 6 hours, Maximum total precipitation rate in the last 6 hours, Minimum temperature at 2 metres in the last 6 hours, Minimum total precipitation rate in the last 6 hours
- Step: 0 to 144 by 3, 150 to 360 by 6 (accumulated & instant):
- 10 metre U wind component, 10 metre V wind component, 10 metre wind gust since previous post-processing, 100 metre U wind component, 100 metre V wind component, 2 metre dewpoint temperature, 2 metre temperature, Accumulated Carbon Dioxide Ecosystem Respiration, Accumulated Carbon Dioxide Gross Primary Production, Accumulated Carbon Dioxide Net Ecosystem Exchange, Accumulated freezing rain, Albedo, Boundary layer dissipation, Boundary layer height, Ceiling, Clear-sky direct solar radiation at surface, Cloud base height, Convective available potential energy, Convective available potential energy shear, Convective inhibition, Convective precipitation, Convective rain rate, Convective snowfall rate water equivalent, Direct solar radiation, Downward UV radiation at the surface, Eastward turbulent surface stress, Evaporation, Flux of Carbon Dioxide Ecosystem Respiration, Flux of Carbon Dioxide Gross Primary Production, Flux of Carbon Dioxide Net Ecosystem Exchange, Geopotential, Gravity wave dissipation, Height of convective cloud top, Height of one-degree wet-bulb temperature, Height of zero-degree wet-bulb temperature, High cloud cover, Instantaneous 10 metre wind gust, Instantaneous large-scale surface precipitation fraction, K index, Lake bottom temperature, Lake ice depth, Lake ice temperature, Lake mix-layer depth, Lake mix-layer temperature, Lake shape factor, Lake total layer temperature, Land-sea mask, Large scale rain rate, Large scale snowfall rate water equivalent, Large-scale precipitation, Low cloud cover, Maximum temperature at 2 metres since previous post-processing, Maximum total precipitation rate since previous post-processing, Mean sea level pressure, Medium cloud cover, Minimum temperature at 2 metres since previous post-processing, Minimum total precipitation rate since previous post-processing, Northward turbulent surface stress, Ocean current meridional component, Ocean current zonal component, Potential evaporation, Precipitation type, Runoff, Sea surface temperature, Sea-ice cover, Skin temperature, Snow albedo, Snow density, Snow depth, Snowfall, Soil temperature level 1, Soil temperature level 2, Soil temperature level 3, Soil temperature level 4, Soil type, Sub-surface runoff, Sunshine duration, Surface latent heat flux, Surface net solar radiation, Surface net thermal radiation, Surface pressure, Surface roughness, Surface runoff, Surface sensible heat flux, Surface solar radiation downwards, Surface thermal radiation downwards, Top net solar radiation, Top net thermal radiation, Total cloud cover, Total column cloud ice water, Total column cloud liquid water, Total column ozone, Total column rain water, Total column snow water, Total column supercooled liquid water, Total column water, Total column water vapour, Total precipitation, Total sky direct solar radiation at surface, Total totals index, Visibility, Volumetric soil water layer 1, Volumetric soil water layer 2, Volumetric soil water layer 3, Volumetric soil water layer 4, Zero degree level
Step: 216, 240, 336, 360: Charnock, Ice temperature layer 1, Ice temperature layer 2, Ice temperature layer 3, Ice temperature layer 4, Skin reservoir content, Temperature of snow layer