NetCDF (Network Common Data Form) is a set of software libraries and self-describing, machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data.

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How to change time zone for netcdf file

For example, I have a netcdf file from WRF model, and its time zone is in UTM 00. I want to change the time zone to UTM 08, how to achieve that?
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32 views

Writing process to load *.nc files using ModelBuilder?

I need to write some model which will allow me to load data (*.nc)- many files with different names and save as tiff files. Input - *.nc files Output - *.tiff files (32 Float) I m completely new in ...
3
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1answer
49 views

Assigning spatial info for NetCDF files using ArcGIS for Desktop?

I have quite a few NetCDF files that arrive from a air quality model without any spatial reference. However, I do have the spatial reference information that is required. Within Arc I use "make a ...
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0answers
193 views

NetCDF to Shapefile with Python and GDAL?

I need to save my outputs, which are netcdf files or panda python tables, to shapefiles. They cannot be rasters because the software I am loading them into accepts shapefiles only. I have googled ...
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9 views

Project netcdf data to a non-greenwich central meridian java [duplicate]

How to project -180.0º - 180.0º to 0.0º - 360.0º longitude in netcdf java.
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40 views

SST(Time,Lat,Lon) from NetCDF File [java] [jfreechart]

I want to plot data from netcdf file like an ocean model. Is there any way to transform LatLonProjection (-180.0 to 180.0): to this range (ocean model): And plot like this: I am using java ...
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1answer
78 views

How can a make a netcdf with subgroups smaller?

I'm trying to write a test for code that works with hycom netcdf global ocean circulation data. The source file 2 subdatasets: gdalinfo hycom_glb_911_2015110200_t000_uv3z.nc | grep _NAME ...
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139 views

Reading netcdf sub variables and convert to raster grid in r

I want the open the fs variable which in under Retrival category and covert that into raster grid. library(ncdf4) file <- "http://co2web.jpl.nasa.gov/thredds/fileServer/OCO-2/B7101Ar_r02/2014/09/...
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16 views

extracting large layer netcdf using r [duplicate]

i am trying to extract layers from a large netcdf file using r my nc file variable are 5 variables:" [1] " double time_bnds[bnds,time] " [1] " double plev_bnds[bnds,plev] " [1] " ...
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2answers
128 views

Extracting a large layer from NetCDF using R

i am trying to extract specific data from an .nc file my nc file has the following variables hur-relative humidity lat-latitudes lon-longitudes time-time plev-pressure levels so i ...
2
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1answer
41 views

Geoserver NETCDF file store updates

I am looking for a general approach to "refreshing" a NETCDF store using the REST API. I have a NETCDF file that is generated every 24 hours. I need to update the file, but would prefer not having ...
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159 views

How to import netcdf in qgis

I have been trying to impot netcdf files following this guide online http://www.ggiuliani.ch/download/netcdf_qgis_GG.pdf into qgis 2.10 with no success. ALthough the file is imported, the dimensions ...
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1answer
63 views

How can I make geotiffs of individual depth layers in the Hycom ocean circulation models?

I am trying to pull layers from the glocal ocean circulation model Hycom. Before I go writing code to try to do this, is there a way to pull a single z depth as a geotiff? e.g. I have ...
2
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0answers
77 views

Extracting Multivalues to Points from NETCDF4 Raster using ArcPy seems imprecise?

I'm getting some strange results in a multivalues to points extraction from a NETCDF4 layer from the MERRA reanalysis product. In particular, it seems like the values being assigned are way off in ...
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1answer
96 views

How to clip a spatial polygon to a large matrix (that is plotted as a large trellis, originated as a netcdf) in R?

I would first like to issue a disclaimer that I am a novice at GIS, and I have only just begun learning R. So if I use the wrong terminology for something or my question is confusing, please help ...
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2answers
410 views

How to extract value from a raster based on lat and lon?

I have several netcdf files that I can read using the netCDF4 library in python. The data is gridded in 4320 rows and 2160 columns. I also have a list of lat/lon (in decimal degrees) and I am trying ...
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1answer
33 views

How can I find the missing data from the downloaded bulk TRMM data?

I have downloaded TRMM daily precipitation estimates for Indian Sub-continent from 1988 to present. I see that there are a lot of missing data days. I was wondering how can I possibly detect the daily ...
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1answer
88 views

netCDF transformation

I have netCDF files with some datasets with data and two datasets containing lons and lats. I would like to open data layers in QGis in coordinates that are writen in netCDF's lon/lat datasets. How ...
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2answers
232 views

How to re-project a netcdf file?

I want to re-project and resample a netcf file but I am getting a usage problem: gdalwarp -t_srs EPSG:3410 -ts 1383 586 NETCFD:"C:\data\product.nc":gsfc output.tiff
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47 views

ArcGIS for Desktop not loading NetCDF file?

I have several NetCDF files that I am trying to load into ArcGIS 10.2 for Desktop. I've tried both the "Make NetCDF feature layer" and "Make NetCDF raster layer" tools. In both tools, when I ...
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32 views

NetCDF Qgis problem

I have a problem with importing a NetCDF file in Qgis. I added the file as a raster layer and I can see the layer. Now I want to change the colours by using the classify function in the properties ...
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68 views

R raster stack 4 dimensions

I am trying to create a raster stack / brick from a list of ncdf files with the dimensions 160x160x24x1). r = stack(files) This gives me a raster stack but without the 4th dimensions which is ...
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89 views

How to convert/interpolate feature layer to raster layer?

According to ESRI documentation about Making NetCDF Raster Layer: To create a netCDF raster layer from a netCDF variable, the spacing between x-coordinates must be equal and the spacing between ...
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1answer
124 views

Programs/ languages to process netcdf files “fast”

I am using R to loop through thousands of NetCDF files (downscaled climate data), and while I am able to do it using R, the code is too slow. I am looking for a way to speed it up and to maintain ...
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1answer
164 views

Getting netCDF data into PostGIS database using Python?

I can read the netCDF file data with netCDF-python or with gdalinfo, but I am unsure of the easiest way to get it into a PostGIS database. It would be really easy if I could convert the netCDF file ...
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1answer
94 views

Simple way to plot netCDF variables on Mollweide projection in R

After spending hours Googling I'm still no closer. I'm very keen to find out if there is a very simple way to plot up variables from a netCDF file that are stored in a regular lat-lon grid (-90to90˚N, ...
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1answer
106 views

python crashes with returned gdal band object from a function

I wrote these two functions in a module when I want to read the band in NetCDF or HDF files and return the band outside the function. Each HDF and NetCDF has many subdatasets. Each subdataset in a ...
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81 views

What are the units in GMTED2010 elevation data?

I have downloaded the GMTED2010 elevation data from http://topotools.cr.usgs.gov/gmted_viewer/viewer.htm I am merging all the files/tiles (to create a global dataset) with: gdal_merge.py There is ...
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1answer
178 views

Geoserver netCDF output missing classes

I downloaded the latest stable release (2.7.1.1) from http://sourceforge.net/projects/geoserver/files/GeoServer/. It starts with the integrated jetty and works fine so far. So I wanted to configure ...
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35 views

GIS only shows the Latitude and does not shows Longitude in nc format file?

I've downloaded a global data-sets contained of .nc format. I tried to open it in ArcGIS model. I used the function Make NetCDF Table View to view the data, when i selected the Dimension, it only ...
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1answer
216 views

Extracting, stacking and calculating Standard Deviation from NetCDF (.nc) to produce single standard deviation and Mean image in ArcGIS for Desktop?

I have a NetCDF file for several years of monthly Climate data ( Precipitation,PET,Temp,etc) data from CRU 3.22 (Climate Research Unit). I want to extract a subset of the dataset namely 2000-2010. And ...
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45 views

NetCDF4 Files: Missing Projection & Varying Dimensions (Multiple Files)

All, I hope you can shed some light on issues I've been having regarding NCEP Reanalysis-I netCDF-4 file format: First issue, Projection information is not stored on the downloads I obtained from ...
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2answers
1k views

NetCDF to Geotiff file conversion

How would I convert NetCDF files to Geotiff format? The data I am using is air temperature data that comes from the Climatic Research Institute and I want to display it on ENVI. I am not familiar with ...
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149 views

PyGrADs: Importing NOAA Rainfall (.rt)/Exporting NetCDF

I am in the process of automating a workflow from downloading NOAA's Climate Prediction Center's Daily Rainfall data in Binary, using GrADS to convert and export to NetCDF, then arcpy to extract ...
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1answer
309 views

Getting warning when opening NetCDF file using gdal?

I am using windows 7(32-bit) and want to warp NetCDF (nc) files and save the output as GeoTIFF. First I run gdalinfo first to get the info of the subdataset I need and added NETCDF in the beginning(e....
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0answers
58 views

How to edit netcdf file to create eddies on the map?

I have a netcdf file about Sea Level Anomalies in the global range, and I can open this file in Arcgis using "Multidimension tools - Make NetCDF Raster Layer" as a map, now I want to create some ...
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42 views

gdal tool for extracting data

Is there any gdal tool available for obtaining data from number of files. actually i need atmospheric parameters which are downloaded from modis website. some datasets are not having data i.e "nodata'...
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60 views

NetCDF calculations

I have a raster of monthly average temperatures for the state of TX (represented as a grid) for a 50-yr period in the form of a netcdf file. I can display the temperatures but am not sure how to do ...
3
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1answer
840 views

Extract data from netcdf using a shapefile polygon in python

I need to subset data from a NetCDF using a specific shapefile. The data are sea surface temperature and ocean color at 1/4 degree resolution. I have 4 polygons describing the US. Northeast ...
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194 views

Calculating Climate Suitable Days using netCDF4 and Python?

This is a follow up to netCDF4 Python climate algorithm I’m relatively novice in using netCDF files, so I’m wondering if someone can check my logic on my process of delineating what has been defined ...
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3answers
305 views

Want cell linear regression values for a netCDF or multi-band raster

I have climate raster type netCDF data. I want the slope and other regression statistics of temperature for each cell over time. I have read that GEOV IDL can do a temporal regression to achieve ...
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2answers
453 views

Latitude and longitude of NetCDF layers in ArcGIS

I've been having a lot of trouble getting the Multidimension system toolbox to work in ArcGIS (10.3). In particular, the Make NetCDF Raster Layer tool does not pick up on numerical Latitude and ...
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0answers
127 views

How to harvest a thredds server correctly with geonetwork?

I am trying to harvest datasets (NetCDF) from a thredds server using geonetwork 2.10. People shall upload their NetCDF files to the thredds server and the CatalogScan element will list them. After the ...
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1answer
178 views

Converting GRIB to NetCDF with time dimension using netcdfAll?

I'm trying to convert grib files to NetCDF. The grib files contains subdata sets which are time related. Using the netcdfAll Java library with the NetCDF-4 C library works fine. java -Xmx1g -...
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387 views

How to avoid “Unable to compute a transformation between pixel/line”?

I am trying to re-project from Equi-rectangular to the NASA global EASE grid (Equal Area Scalable Earth) grid 1383 586 with a ~25 km cylindrical projection (ESPG=3410). The file is provided as HDF5. ...
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1answer
313 views

How I can extract a subset of years from a NetCDF file (e.g. to use in cell statistics)?

I want to use 5 years of data from a netCDF with 10 years of data (monthly slices). I saw this tutorial video that mentions this, but I can't figure out how to select more than one time slice. http://...
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59 views

netcdf python error

I am basically copying and pasting the code provided on Esri's website and every time I try to run it in ipython, the program crashes and needs to restart the kernels. The code is below, does anyone ...
2
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1answer
236 views

Monthly weather averages using NCEP/NCAR Reanalysis data

I'm a political science grad student and I've recently (and probably foolishly) committed to dipping my feet into GIS. Right now I need to build a table that has monthly precipitation and temperature ...
2
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3answers
748 views

Plotting Netcdf data. How to get right projection?

Maybe it's very easy for someone to fix, but I'a a new one in R, so I really need help. I/m trying to plot data containing lat, lon and variable (nmf2). The grid isn't a regular one, so there are some ...
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6 views

how to write a netcdf4 in the right manner [duplicate]

What is the standard way to write a netcdf4? I'm using this guide http://netcdf4-python.googlecode.com/svn/trunk/docs/netCDF4-module.html but when I dump the output file with ncdump, I get the error: ...