Custom Query (210 matches)

If the software is to be installed on any ECMWF server, the setup.sh script checks whether all necessary parameter are set, namely ECUID, ECGID, GATEWAY and DESTINATION.

This approach assumes to have a local gateway server in place! If this is not the case and the user will just work on ECMWF server directly and sends the resulting files via ssh, it is NOT necessary to set GATEWAY and DESTINATION.

Check needs to be changed.

The name of the Fortran executable was changed in v7.1 from CONVERT2 to calc_etadoc<_fast/debug><.out>.

Not changed yet in the on-line documentation. Still needs to be done and checked!

Dear FLEXPART community,

Recently I use flex_extract (v7.1.2) to download ERA5 data. I found that for some dates the request for ERA5 surface flux data will encounter an error as below:

2020-11-23 11:31:16,800 INFO Request is failed
2020-11-23 11:31:16,801 ERROR Message: no data is available within your requested subset
2020-11-23 11:31:16,801 ERROR Reason:  Request returned no data

Below is the mars request (generated by flex_extract) which triggers the error.

marsclass: EA
dataset: ERA5
type: AN
levtype: SFC
levelist: 1
repres:
date: 19951101
resol: 159
stream: OPER
area: 90.0/-179.0/-90.0/180.0
time: 00
step: 000
expver: 1
number: OFF
accuracy: 24
grid: 1.0/1.0
gaussian:
target: /disk/r059/ldaiad/flex_extract_farmers/farmer_511/Run/./Workspace/EA_temp/OG_OROLSM__SL.19951101.192867.192868.grb
param: 160.128/027.128/028.128/244.128

ERA5 data on some other dates can be download via the same script without any problem, but there are some *dates/periods* that the same download script gives the above error.

A minimal download script to reproduce this error can be as follows.

import cdsapi

c = cdsapi.Client()

c.retrieve('reanalysis-era5-single-levels',
{
  "product_type":'reanalysis',
  "area": [40.0,-10.0,30.0,10.0],
  "year": "1995",
  "month": "11",
  "day": ['1'],
  "grid": [1.,1.],
  "param": "160.128/027.128/028.128/244.128",
  #"variable": ['standard_deviation_of_orography', 'forecast_surface_roughness'],
  "time": ['00'],
  "format":'grib2',
}, 'download_era5_flux_cdsapi.grib')

Note that if using the variable names instead of param (i.e. use 'standard_deviation_of_orography' and 'forecast_surface_roughness' in the commented line), I can download the data without any problem. (but somehow I can't find the variables corresponding to parameters 027.128 and 028.128.)

Hence, I think this may not be a problem for flex_extract. Rather, I guess there are *some* ERA5 surface flux data *missing* in the MARS database.

So my question is how I can work around this error. Can I modify the source code of flex_extract so that I can just download the ERA5 surface flux data from CDS instead of MARS? If so, how can it be done?

Thank you for your time in reading this post. Any advice is much appreciated!

Best, Fandy