input data

Came across a new dataset which is promising, will we be able to use the MSWX dataset for running WRF?

Hello WRF Community, Does anyone have any information on how to view this data . When I try to view it with gedit , it gives a jumble of characters; using xarray and wgrib2 has also not worked. I think it is in ASCII format. Does anyone have any idea on how one could potentially see its...

Hi, I’m using the era5_to_int.py tool to process ERA5 data into the intermediate files required for met_grid. I would like to use pressure-level (pl) data as the input. I have collected the pl, surface (sfc), and invariant datasets in my data directory, and I’m running the following command...

Hello, I've been having issues with trying to get 20CRV3 input data to run in WRF v4.7.1. Since 20th century reanalysis V3 is missing specific humidity data for levels above 100 mb I'm using 1000-100 mb pressure levels. Yet when running real.exe I keep getting this error and I can't figure out...

Hi, I'm using the era5_to_int.py tool to process downloaded ERA5 pressure-level (pl) and surface (sfc) NetCDF (.nc) data into intermediate files for subsequent metgrid preprocessing. According to my colleague’s experience using ERA5 GRIB (.grb) data, only the pl and sfc datasets are required...

Hello everyone, I am currently running VPRM on the basis of WRF-Chem V3.9.1.At present, I have successfully used pyVPRM to output the variables required for VPRM such as EVI, LSWI, etc., and write the relevant variables to vprm_input_d01. The variable information and dimensions are as follows ...

Hello everyone, I am currently running VPRM on the basis of WRF-Chem V3.9.1.At present, I have successfully used pyVPRM to output the variables required for VPRM such as EVI, LSWI, etc., and write the relevant variables to vprm_input_d01. The variable information and dimensions are as follows ...

I'm trying to run WRF with SST update, with ERA5 atmospheric data and HYCOM SST data. I've previously run with ERA5 atmospheric+SST and had no issues. I've converted the HYCOM data from netcdf4 to intermediate file format using pywinter, making sure that I regrid HYCOM to ERA5 resolution. I used...

Hello. I would like to ask if someone has some other data download point for GFS 0p25 data. Currently for my options are: NOAA repo: Index of /pub/data/nccf/com/gfs/prod Last option is via noaa-ftp, but that is the very last option that I have (5 hours downloading data, but it does not use...

嗨，我是 wrf-les 的新手，我想知道您是否能告诉我一些关于 wrf-les 的实际情况。 我打算用 ndown 来做背景风场。我该怎么做才能给背景风场增加干扰。 提前感谢您提供的任何信息。

Whenever I finish running the model as 'mpirun -np 14 ./wrf.exe' I get a file that does not have '.nc' extension at the end of it, for example: 'wrfout_d01_2025-04-22_06:00:00' (it doesnt have .nc at the end), and when trying to open it in python (with xarray and netcdf) or in another program...

Hello Sir/Ma'am, We wanted to conduct a study to evaluate the impact of urban natural vegetation on air temperature. In order to do that, We have used the default geo_static_data (modis) for our calculation. So we have done two case with different SHDFRAC values (based on my understanding...

The Open Science & Data Help Desk, which is a program of the Earth Science Information Partners (ESIP) and the American Meteorological Society (AMS), provides researchers with opportunities to engage with informatics experts in their domains. Through the Help Desk, researchers can learn about...

Hello, Newbie here. I need a URL where I can download GFS data for initial and boundary conditions. I go here - Index of /pub/data/nccf/com/gfs/prod/gfs.20241128/00/atmos but I am not sure what files to download. I have used python to download the 0.25x0.25 file from AWS but not...

I am attempting to run WPS for a later WRF Solar simulation using GFS data as an input, however, after looking at the Vtable.GFS, I couldn't find any entries listed for cloud-related variables (cloud fraction, cloud water mixing etc). I assume I have to edit the Vtable to fit my needs, but...

I was using NUDAPT dataset provided on the WPS_GEOG data website for running BEPBEM WRF simulations. I later developed my own set of UCPs required from the explicit building footprints and building heights data we had. I followed some of the older documentations of NUDAPT...

Hi , I have read the WPS documentation and found that the field constant_name I'm not sure how to set it or is it possible to execute ungrib.exe 2 times after eliminating the meteorological data from the gfs and only retaining the soil data?

Hello I would like to know how do I make wrf run some data and with this data give me a future forecast for 2 days ahead. Exemple.: I have input data that goes from 2024-01-06 to 2024-01-09 and i would like to get future output data, like 2 days ahead, so in the end I would have output files for...

I have a new stand-alone topographic netCDF data file that I would like to read in on initialization of 'atmosphere_model'. The file is a 1D (horizontal only) file and is for a new gravity wave drag parameterization. The model only runs if I include an 'xtime' variable in the netCDF file...

Hello NCAR, I recognize that the input data for the WRF model play a crucial role in climate or wind profile reproduction. I don’t have any observation data for nudging, so instead…Is it possible to use best track data as input if I want to investigate tropical cyclones? As WPS need grib files...