WPS ECMWF (ds626.0) surface and isobaric levels as initial and boundary conditions

[sium]

Can someone guide me what data I should download from ecmwf ds626.0 surface and isobaric levels as my initial and conditions for WRF-chem.

I am confused which variables I need to download?

CFSR data was easily because you have to download surface and pressure levels in a single tar file. However, ECMWF does not seem to have such data.

Has anyone use ECMWF (ds626.0) as initial and boundary condition for WRF or WRF-chem ? Please provide guides how I do that .

Thanks

 

[Ming Chen]

Please see the attached file.

 

[sium]

My initial and boundary condition is from ECMWF (ds626.0). The link for the dataset is CISL RDA: ERA-20C Project (ECMWF Atmospheric Reanalysis of the 20th Century).

ERA 20th Century 3 hourly atmospheric isobaric analysis and ERA 20th Century 6 hourly atmospheric surface analysis

I have attached the Vtable as well. I am not using ERA5 (ds633.0).

So which dataset am i going to download ? do i have to download every grib data one by one ( eg 129, 130,131,132,157 etc) .


GRIB | Level| Level| Level| metgrid | metgrid | metgrid |
Code | Code | 1 | 2 | Name | Units | Description |
-----+------+------+------+----------+----------+------------------------------------------+
129 | 100 | * | | GEOPT | m2 s-2 | |
| 100 | * | | HGT | m | Height |
130 | 100 | * | | TT | K | Temperature |
131 | 100 | * | | UU | m s-1 | U |
132 | 100 | * | | VV | m s-1 | V |
157 | 100 | * | | RH | % | Relative Humidity |
165 | 1 | 0 | | UU | m s-1 | U At 10 m |
166 | 1 | 0 | | VV | m s-1 | V At 10 m |
167 | 1 | 0 | | TT | K | Temperature At 2 m |
168 | 1 | 0 | | DEWPT | K | |
| 1 | 0 | | RH | % | Relative Humidity At 2 m |
172 | 1 | 0 | | LANDSEA | 0/1 Flag | Land/Sea flag |
129 | 1 | 0 | | SOILGEO | m2 s-2 | |
| 1 | 0 | | SOILHGT | m | Terrain field of source analysis |
134 | 1 | 0 | | PSFC | Pa | Surface Pressure |
151 | 1 | 0 | | PMSL | Pa | Sea-level Pressure |
235 | 1 | 0 | | SKINTEMP | K | Sea-Surface Temperature |
31 | 1 | 0 | | SEAICE | 0/1 Flag | Sea-Ice-Flag |
34 | 1 | 0 | | SST | K | Sea-Surface Temperature |
33 | 1 | 0 | | SNOW_DEN | kg m-3 |
141 | 1 | 0 | | SNOW_EC | m | |
| 1 | 0 | | SNOW | kg m-2 |Water Equivalent of Accumulated Snow Depth|
139 | 112 | 0 | 7 | ST000007 | K | T of 0-7 cm ground layer |
170 | 112 | 7 | 28 | ST007028 | K | T of 7-28 cm ground layer |
183 | 112 | 28 | 100 | ST028100 | K | T of 28-100 cm ground layer |
236 | 112 | 100 | 255 | ST100289 | K | T of 100-289 cm ground layer |
39 | 112 | 0 | 7 | SM000007 | m3 m-3 | Soil moisture of 0-7 cm ground layer |
40 | 112 | 7 | 28 | SM007028 | m3 m-3 | Soil moisture of 7-28 cm ground layer |
41 | 112 | 28 | 100 | SM028100 | m3 m-3 | Soil moisture of 28-100 cm ground layer |
42 | 112 | 100 | 255 | SM100289 | m3 m-3 | Soil moisture of 100-289 cm ground layer |
-----+------+------+------+----------+----------+------------------------------------------+

 

[Ming Chen]

The following variables are required or desirable for running WRF. Please find which files contain these variables and download those files. I am sorry that you have to go through all the files listed in the CISL website and find the information. Somehow NCAR CISL didn't organize this ERA data in the same way as for CFSR.