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  1. C

    WRF freezes, keeps running but it doesn't write the output

    I've been having random errors where WRF process keeps running, but it doesn't write the output data (wrfout, wrfrst, rsl). The only way to fix it is to change the timestep or change the microphysics parametrization (ie. from 6 to 3). This happens randomly, different servers, different...
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    Modelling over complex terrain at high altitude

    I want to set up a model over a complex terrain at high altitude (between 3000m and 5000m). The main problem here is that sometimes the surface wind field is forced by the model to make a wind direction daily cycle, instead of one steady direction (mainly from the north). So, I most of the time...
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    Setting first layer thickness

    I tried to change de default 50m for the first layer to 20 m by using dzbot= 20 and keeping everything else default. When I check the namelist.output seems ok, but when I check the vertical levels, are the same than the default setting. Is there anything else I should set? I'm using WRF 4.4...
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    About LANDUSE.TBL use of summer/Winter data

    The LANDUSE.TBL file has summer and winter parameters, how does WRF knows when use summer or winter? the months are set by default or can be modified in other file? and if it's used in the southern hemisphere, is it ok to use the same file or has to be adapted?
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    Error in real.exe P array = NaN

    I'm trying to run real.exe and I keep getting the same problem: rsl.out: 01 2020-01-19_05:00:00 boundary conditions OK for grid Using sfcprs to compute psfc d01 2020-01-19_05:00:00 calling inc/HALO_EM_VINTERP_UV_1_inline.inc d01 2020-01-19_05:00:00 calling inc/HALO_EM_VINTERP_UV_1_inline.inc...
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    Too many time periods for processing data in OBSGRID

    I'm trying to run OBSGRID for a period of 6 months with hourly data, but when I excede 1000 hours I get the following error message: Time period #00997 is for date 2019-02-13_12:00:00 Time period #00998 is for date 2019-02-13_13:00:00 Time period #00999 is for date...
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    Replacing the LANDMASK with LANDSEA

    I have some problems modelling on the wind direction output in the coast a bay area. I think it mostly come from the representation of the land/sea cycle. I think this must come from the use of the LANDSEA mask in ungrib, which has lower definition than LANDMASK in GEOGRID. So currently I'm...
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    (SOLVED) floating invalid error while running with observational nudging

    I've had problems trying to run with observational nudging. This is what I've done so far. I created surface station data with my own script, so I've got little_r and OBS_DOMAINXX this way. little_r are read ok by obsgrid, and obs_domain are the same as obsgrid output. I tried to run...
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    Using SRTM1 data

    I found a very easy way to use SRTM1 data as input for geogrid with qgis and convert_geotiff. So you have to follow these steps: 1 - Install the SRTM-Downloader plugin (https://github.com/hdus/SRTM-Downloader) 2 - download the domain you need with the plugin. This step is slow, and you need a...
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    Does bucket_mm and Bucket_j works with the fast version of the RRTMG scheme (24)?

    I want to know if the bucket_mm and Bucket_j works with the fast version of the RRTMG scheme (24). Here is the options I'm using: ra_lw_physics = 24, 24, 24, 24, ra_sw_physics = 24, 24, 24, 24, bucket_mm = 100.0, bucket_J...
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    how to compile WRF with intel mkl libray

    I've read some tests using intel mkl library that gets really good improvements in running time, so I tried to test it, compiled succesfully, but it didn't run. I use the recomended form intel mkl link advisor. I set the configure.wrf like this:First I set the external libraries: LIB_EXTERNAL...
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    how to compile WRF with intel mkl libray

    I've read some tests using intel mkl library that gets really good improvements in running time, so I tried to test it, compiled succesfully, but it didn't run. I use the recomended form intel mkl link advisor. I set the configure.wrf like this:First I set the external libraries: LIB_EXTERNAL...
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    Question about elevation and height in little_r format

    I'm using some weather stations (FM-12 SYNOP) and a weather tower (FM-35 TEMP) as input in OBSPROC in little_r format. And there is two parameters which I have some doubts. First, in the header there is an elevation parameter, which is same as topography, above sea level. But I don't know and I...
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    SST historical data download

    I'm tryineg to download NOAA SST high resolution from ftp://polar.ncep.noaa.gov/pub/history/sst/rtg_high_res but it only has the last 10 days. I need the data for the 2015 and 2019 years, but I haven't been able to find them. Does any one knows where are these files?
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