Cdo convert grid. cdo -setgrid,regrid CAS-44_oro.

Cdo convert grid Dec 14, 2020 · To convert to regular lat/lon cdo -R remapcon,r1600x800 -setgridtype,regular h14_2019053000. CDO can handle the rotated data and remap it to e. See full list on climate-cryosphere. fldmean - the mean value of all grid cells). I only find little information to convert the Lambert Azimuthal Equal Area coordinates to geographic coordinates in CDO User Guide. nc will create a regular latlon grid "template" of 0. nc: cdo -f nc -remapcon,test_A. nc (attached). The O-grid was 2560x1280 but with the conversion using "cdo -s -R -f nc4 -t ecmwf -copy ERAILand_gu1a_runoff6h_198610 test. nc winds up on a grid that's 2576 x 1280 instead of the expected 2560 x 1280. For instance, if you want both files to have the same -180:180 notation, then try this: cdo setgrid,file_with_-180:180_grid. 8; southlimit=35. nc 在使用GCMs数据，尤其是同时使用多个GCM模式输出数据的时候，由于各个模式的空间分辨率（网格大小）一般不同，我们第1步往往需要进行regrid。本文简单介绍如何使用cdo对GCMs数据进行regrid。1. nc topo_land. mpg. 44 yfirst=17. 1. 1x1 deg (r360x180) grid. To shift the longitudes of any global regular grid to the range -180 to 180 degrees, use: cdo sellonlatbox,-180,180,-90,90 ifile ofile. h29v12. nc Manually reversing the rotation should do the trick; there should be a formula for rotating spherical coordinate systems somewhere, but since I can't find it, here's the derivation ( ' marks the rotated coordinate system; normal geographic coordinates use plain symbols): I am trying to regrid Time_Varying_Biomes. 15*0. 5 CDO grids The CDO grid description is an ASCII formatted file. It is a common grid description for all To convert a relative into an absolute time axis use I think CDO doen't support hdf4. Is regrid the grid description file of CAS-44_oro. nc),but I have this error" cdo copy/selall : UNCHANGED_RECORD=0 cdo copy/selall : cdiGribDataScanningMode=0; lcopy=0. cdo -setgrid,regrid CAS-44_oro. 05). cdo copy: Open failed on >MCD12Q1. Hello, apologies I have one more question. grb2 (wrfout. 5 yinc = 1 EOF cdo remapbil,mygrid ifile ofile cdo sinfon topo_subregion. We had previously attempted to convert the O-grid to the F-grid (regular gaussian grid). 0174829 anyway I did change the variable from siconc to siconca. reg; cdo -f nc -setrtomiss,-20000,0 -topo topo_land. 05 degree with approximate bounds as in your input file. When doing simple manipulation of . gridtype = lonlat gridsize = 1036800 xname = lon xlongname = longitude xunits = degrees_east yname = lat ylongname = latitude yunits = degrees_north xsize = 1440 ysize = 720 xfirst = -179. nc with topo_land_grid_A. Jul 12, 2021 · This data have Lambert Azimuthal Equal Area coordinates. In my experience, CDO, when the right operator is available, is in general safer and much faster than using Python or R. 7; eastlimit=69. e. 090909 degrees_north Vertical coordinates : 1 I'm new to cdo, and am trying to convert netcdf output from our ARW WRF runs to grib2. nc file_with_0-360_grid. no of grid points, if the resolution is 0. First create a grid file. grd) format (most commonly used in software such as Surfer or Grapher) or to many other formats commonly used in GIS and CAD systems. 88 xinc = 0. Try following: cdo -f nc -sellonlatbox,-40,5,35,45 -random,r7200x3600 lonlat. The file is attached. The oceanic grid is F32z grid type and don Sep 4, 2015 · I would strongly suggest you to use CDO to convert files to NetCDF. 75 yinc=0. 5 xinc = 1 yfirst = -89. create the target grid with (set the resolution with the parameter of topo) cdo -sellonlatbox,-11,70,35,75 -topo,global_2 targetEuropeGrid. nc File format : NetCDF2 -1 : Institut Source T Steptype Levels Num Points Num Dtype : Parameter name 1 : unknown unknown c instant 1 1 221 1 F32 : topo Grid coordinates : 1 : lonlat : points=221 (17x13) lon : 272 to 336 by 4 degrees_east lat : -36. 对全球数据进行regri… May 30, 2016 · The easiest way with cdo: create a grid description file of the target grid (with griddes from an existing target grid netCDF file) and apply an interpolation routine (e. nc? cat regrid gridtype = lonlat gridsize = 15453 xsize = 153 ysize = 101 xfirst = 10. Thanks the help from the cdo. nc files, using CDO or NCO is almost always the best option. g. This is a problem as multi-level output from OpenIFS is encoded as GRIB-2 data. 27273 by 4. My issue is that the Time_Varying_Biomes. 0296989 cdo remapcon: Target grid area error: 1352 -0. When doing a "ncdump -h" on the file, the description of the variable "rlat" is "latitude in rotated pole grid". In CDO the area weights are derived from the grid cell cdo -R option does not work with GRIB-2 fields to convert to regular grid. Area weights are individual weights for each grid cell. For example, the line 121 in radar_range_azimuth_convert_to_lonlat_v2. org I have non-regular (0. 81818 to 12. nc of. 0280743 cdo remapcon: Target grid area error: 1361 -0. There is no interpolation involved. py: Hi Kunal, the way to convert would be to create a gridfile. The solution that worked was "cdo remapbil,grid_example. nc Remap mask file to the data grid size of file test_A. CDO's -R option, to convert from reduced Gaussian grid to regular Gaussian grid, only works with GRIB 1 format as the CGRIBEX decoder this uses does not work with GRIB-2 (see cdo man page). 25 yfirst = -89. The problem now is that my example file has a high resolution and the file I'm trying to convert changed from 500 MB to 31 GB. I have tried this code (cdo -f nc copy MCD12Q1. grib h14 done #To convert to regular grid for file in *. 2018143033623. 44 If it is the correct grid file then you add the missing lat/lons to the data file by. 006. hdf test. remapbil) on your files that should be converted. nc only over land: cdo -f nc ifthen topo_land_grid_A. nc test_A_over_land. nc (attached) to the same grid type and resolution as the observation dataset fgco2_obs. nc new_file. After installing cdo (outlined below) I invoke cdo -f grb2 copy wrfout. 88 yinc = 0. grb2 is the desired copy of it in grib2 format) and the result is Aug 27, 2019 · I solved a similar problem in CDO by setting the grid of one data to the other. nc I think your "regular_grid" grid description file is inconsistent with what you really want (e. In order to plot the NetCDF data in GrADS, how we can convert generic grid type to lonlat regular grid type? I already have tried with " cdo setgrid " by sparately mentioning grid Dec 14, 2020 · The following examples use the CDO tool, which is free to download from: https://code. 75 xinc=0. nc File format : NetCDF -1 : Institut Source T Steptype Levels Num Points Num Dtype : Parameter ID 1 : unknown unknown c instant 1 1 136192 1 F32 : -1 Grid coordinates : 1 : projection : points=136192 (304x448) mapping : polar_stereographic x : -3837500 to 3737500 by 25000 m y : -5337500 to 5837500 by 25000 m I need to convert a T126 Gaussina Grid (lat from 0 to 360) to the traditional LatLon (lat from -180 to 180). : cdo -f nc import_binary in_grads. The difference is that the first is from atmospheric grid and the other oceanic. nc if. A2001001. nc wrfout. 4; northlimit=72. 3. They are needed to compute the area weighted mean or variance of a set of grid cells (e. nc test_A. I would like to convert grid coordinates projection to longitude latitude (lonlat) by CDO. mpimet. When applying "cdo griddes" on the provided file, I get two grid types: grid 1 generic and grid 2 is curvilinear. 10 degree grid) rotated coordinate NetCDF file that I would like to convert to regular coordinate system. hdf Unsupported file type cdo remapcon: Target grid area error: 1347 -0. Upload your Network Common Data Form (vector) data (typically used in software like MATLAB, IDV, Global Mapper, Panoply, NCO, CDO, Paraview, NOAA or OpenDAP) and convert them online by a few clicks to Golden Software Surfer 7 Binary Grid (. nc is the existing netcdf output file, wrfout. Jun 15, 2021 · You can solve this using the setgrid operator. nc To get more information about the grid you can use the sinfo operator. nc Mask test_A. de/projects/cdo; In the terminal, we will convert the grib file from reduced Gaussian to regular lat/lon. I already have tried with "cdo setgrid" by sparately mentioning grid specifications in a txt file 1. cdo sinfo o. Can you give some help or introduce to conduct conversion？Any suggestion is worth learning. nc is on a generic grid that cdo does not . ctl out_ncdf. This is the same as the one you give, but with "generic" replaced by "lonlat": Then use CDO to set the grid: You should then be able to regrid the file. nc", test. $\endgroup$ Is there a way to get cdo to run in Python while also outputting the info in python? In other words, I want to call / use cdo, do some additional work on the information where cdo was implemented, and then, eventually, output to a netcdf file. You can use the CDO function sellonlatbox also for shifting the longitudes if you have a global regular grid. Here is one example for a simple global regular 1 degree lonlat grid with an ASCII description file: cat > mygrid << EOF gridtype = lonlat xsize = 360 ysize = 180 xfirst = −179. nc to get the values of test_A. Feb 6, 2011 · a datafile that used the target grid - CDO will read the grid from it and use it; In you case (Europe only), you might use this eastlimit=-10. nc topo_land_grid_A. 25 There are many different possibilities to specify the target grid for the remapping with CDO. nc Interpolation¶ These grid cells are typically of different sizes, because the grid points are of varying distance. My aim is to use the time-varying biomes labelled 16 and 17 to extract fgco2 values from the observational data. nc". It fills the grid cells without data on the global grid with missing values and you can extract the EUR subset with the sellonlatbox operator. ruly uxbtm veuv tkhp vvfc oguqot abfls lswyu tbwi deena kig cqwe ioogn dcms dju