input data

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...

Hello beautiful community, so, I've been wanting to run some idealized simulations with nesting. One way to do that would be to modify an idealized case, but that seems like a lot of work. Another case would be to modify: the input files (ERA5 in this case) the static fields (geo_em files)...

Hi all, I will be using the aerosol-aware Thompson scheme to look at the sensitivity of clouds to initial CCN and INP concentrations. I was wondering if I am supposed to change the content of the QNWFA_QNIFA_QNBCA_SIGMA_MONTHLY.dat file to do that. If not, I would appreciate your insights on...

Good day, Does anyone know where I can download historical Global Forecast System (GFS) files? I was downloading from this website before: Index of /data/global-forecast-system/access/grid-004-0.5-degree/forecast. But the historical data available is only a few months from today (23 April...

Can IFS/EC data be used with RUC LSM? Should flag_sm_adj be used like with GFS or not?

I am conducting an experiment from October 1, 2016 to October 6, 2016. I have the following met_em files: met_em.d01.2016-10-01_00:00:00.nc met_em.d01.2016-10-02_00:00:00.nc met_em.d01.2016-10-03_00:00:00.nc met_em.d01.2016-10-04_00:00:00.nc met_em.d01.2016-10-05_00:00:00.nc...

Good afternoon, Has anyone sucessfully used GEFS data for WRF model input? I'm seeing how it compares to the deterministic GFS data for forecast validation.

Hello everyone, As a beginner in WRF modeling, I have some questions regarding the simulation of typhoons using the WRF model. I successfully ran the 'real.exe' simulation on WRF, and it performed well. However, I'm trying to eliminate the effect of a typhoon while running the 'real.exe'...

Hi, I was wondering if there is any way to prepare the geographical static data by my own. The most recent nlcd data provided by WPS_GEOG is nlcd 2011. NLCD 2019 have been released and revised in 2021 (doi:10.5066/P9KZCM54). How are the geographical static data of WPS_GEOG is prepared and how...

I try to follow the MPAS tutorial online but face with some problems for days, and hope someone can help me with it. The tutorial (including geog and met data) is downloaded from MPAS Tutorial — Practice Session Guide I have already run ./init_atmosphere_model with 40962 meshes, and...

I am a beginner to the WRF-Hydro model. I would like to simulate groundwater for an Indian region. WRF-Hydro is providing the groundwater bucket parameter and in India in-situ groundwater level is available. My questions are: 1. How can I compare the WRF-hydro output (groundwater bucket...

Hello everyone, I am running a wrf model with this publicly available data from https://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.20230313/00/atmos/. wrf.exe completed successfully in 34 hrs using 20 mpi processes. I was trying to reduce the runtime by increasing the number of mpi...

Hi, I have been trying to run some WRF runs but keep getting the attached rsl.error (same for every processor). I have already done WRF runs with input file created in WPS from the same original input data (HadGEM2-ES) for the dates 27-3-20* till 31-5-20* which ran without an issue. But for...

Greetings all, I'm trying to run a nested , 5 months long case on a precompiled WRF system using ERA-5 both single and pressure level dataset and I used the following reference to download the data from: https://dreambooker.site/2019/10/03/Initializing-the-WRF-model-with-ERA5-pressure-level/...