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 convert NetCDF file to Grib2 or Grib files

I'm in trouble to read NetCDF file data. Basically NetCDF file contains Ocean current data. How do you convert a NetCDF file to a Grib2 or Grib file? I already have procedure to read data from Grib2 ...
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23 views

standard way to write a netcdf4

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: ...
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5 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: ...
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1answer
320 views

Building attribute table from raster in ArcMap 10.1

I have a NetCDF file containing the latitude, longitude and porosity for the entire US. I am trying to add another value (wilting point) which depends on the porosity. I wanted to extract the netcdf ...
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18 views

netCDF GDAL C# - time:unit?

I'm trying discover how to read the time:unit variable information information from a netCDF file and have run out of ideas. Without this info i cannot auto-magically process the files by date (which ...
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1answer
57 views

How to match a raster NetCDF data with a vector layer in QGIS?

When I load a raster layer with humidity data from NOAA database (for instance rhum.2m.2014.nc at ftp://ftp.cdc.noaa.gov/Datasets/NARR/Dailies/monolevel/) I am not able to match it with a simple map ...
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22 views

how to apply automatically current visualization option in NetCDF files using arcpy.mapping?

I am trying to create a time series animation automatically from NetCDF files, containing each file monthly data for the whole planet for periods of 10 years. I am writing a python script that reads ...
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Conversion of GRIB and NetCDF to my database

. I have downloaded "High Resolution Initial Conditions" climate forecast data for one day, it was in extension .tar.gz so I extracted it in my local directory and I get the files like in the ...
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2answers
59 views

GDAL reads NEX Climate projection datasets as netCDF on Mac, HDF5 on Ubuntu

I'm trying to work with the climate projection data that NASA released, and is hosted publicly on S3: http://aws.amazon.com/nasa/nex/. The data is available at s3://nasanex/NEX-DCP30. The code I'm ...
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44 views

Open a NetCDF file with multiple time step on QGIS (using Python console)

How to load a NetCDF-file into QGIS using Python? explains well how to load a NetCDF with PyQgis. However, it did not help me to choose among all the available time steps. Is there a way to import a ...
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1answer
97 views

Viewing/understanding NetCDF files

NetCDF seems to be a scientific standard which seems to be rather common in oceanography and atmospheric sciences. I'd like to know more about it. How does the NetCDF format work, structure wise? Do ...
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1answer
229 views

How can I create a WFS from netCDF file(s)?

Currently I'm working on a project that uses OpenLayers and Geoserver to view data from a postGIS server (both on a map through a WMS, and as data through a WFS). Now, I'd like to be able to compare ...
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0answers
19 views

Requirements to create ESRI Grid from CF-compliant NetCDF?

I found a lot of information how to create an ESRI grid from NetCDF without ever finding a list of requirements for the NetCDF format. CF compliant does not seem to be enough for ESRI sometimes. What ...
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3answers
208 views

What coordinate system is this netCDF raster?

I obtained a netCDF raster file, but I couldn't get any metadata to get the name of the coordinate system the raster has been built on. The raster itself doesn't have any coordinate system embedded. I ...
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75 views

Display a NetCDF file in 3D

Does anyone know how to display a netCDF in a 3D Scene Map in ArcGIS 10.2? something like the pretty 3d graphics at the UC I've got hundreds of thousands of points/cells with values for a stretch of ...
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40 views

FMRC feature in THREDDS presents timesteps incorrectly

I'm trying to set up a Forecast Model Run Collection using THREDDS. I have a collection of netCDF files, where the time at which the simulation was run is part of the filename: forecast_YYMMDDHHmm.nc ...
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1answer
55 views

netCDF4 Python climate algorithm

I have been working in Python with the Acaconda Python distribution to create code that accomplishes the following algorithm: I have multiple variable netCDF4 files [NCEP Reanalysis tmax(K), tmin(K), ...
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3answers
2k views

How to open/display and extract NetCDF files info?

I am working with NetCDF files using R & Matlab and I would like to know if the GIS community is using them. I know that ArcGIS can open & display, however most of the times the results are ...
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1answer
39 views

Where do I find the legend for netCDF files in QGIS?

I'm using QGIS to make maps of the maize, rice and wheat cultivated area at global level. I found these great netCDF files: http://www.geog.mcgill.ca/landuse/pub/Data/175crops2000/NetCDF/ Here's an ...
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39 views

how to generate the average wind speed raster from time series wind datasets (in Netcdf file form)

I download the wind speed information in netCDF form from the 2001 - 2013(i.e 1/1/2001, 1/2/2001, 1/3/2001............. 1/11/2013,1/12/2013) In NetCDF file the 1st row contains latitude , 1 st ...
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43 views

How to upload NetCDF and HDF files to Geonode?

What is the best way to upload NetCDF and HDF files to Geonode? Are those formats supported natively, do I have to access them programatically, or do I need to convert them to another format first?
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78 views

How to calculate average wind speed at a particular location (given longitude and latitude)? [closed]

I am using ArcGIS 10.2 and new to this software. My question iss I have time series wind speed data in netCDF form. I extract netCDF in raster form after that in table form. Now I need How to ...
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57 views

gdalwarp with NETCDF files

I have been looking for it for a while but couldn't find what exactly I need. I have WRF outputs in NETCDF format and I want to convert them to Geotiffs with gdalwarp. I think my -s_srs should be ...
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1answer
42 views

Mapping NetCDF CF Mercator parameters to GDAL

I have coordinates on a mercator grid projection from a NetCDF (CF) file. The metadata attributes in the file include : standard_parallel, longitude_of_projection_origin, earth_shape (spherical), ...
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1answer
101 views

Export band names with NetCDF file in R

I am using R to work with multiband raster files and am running into a problem. I have named the bands, but when I export in netcdf format, the band names are being stripped. Anyone know how to ...
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30 views

Displaying band names in netcdf file in ArcGIS 10

I have several netcdf files that contain multiple bands with useful names. When I import into R, the names are intact. However, when I import the netcdf files into ArcGIS 10.2 using the makeNETCDF ...
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1answer
91 views

problem to open a netCDF and create a raster file

I want to open a netCDF file and create a raster with ArcMap 10.2. The file contains the mean monthly temperature for Switzerland. I found it in meteoswiss web site. I tried to open it with the ...
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45 views

different data range of raster file in mapserver and qgis

a NetCDF file with only one band with a data range from [0,1.1]. IDV & QGIS identifies it correctly, however gdalinfo finds the data range [1,26505]. Or could it be possible that gdalinfo is right ...
3
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1answer
528 views

Setting up THREDDS catalogs for ocean model data

I've got a bunch of NetCDF files from ocean modeling runs. Some are 3-day forecasts that are run daily, some are hindcast runs where each hindcast is split into multiple files like ...
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1answer
336 views

Plotting NetCDF file using lat and lon contained in variables

I am trying to plot this NetCDF file (and similar) as a 2d contour map. The file contains a single layer of one variable, "pr". The file has 413x229 X-Y pixel coordinates, and, stored inside the ...
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109 views

How to import NetCDF to PostGIS (or GeoTIFF)

I was wondering if there are some online examples/instructions for importing NetCDF files into PostGIS raster images? I looked around, and found this related GIS SE question. However, the answer only ...
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1answer
122 views

Subset netCDF based on last valid variable by level

I have a netCDF file (in this LINK) which contains monthly average values for 4 parameters at 11 different depth levels (0-200m). I would like to extract the monthly value for temperature "votemper" ...
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1answer
157 views

How to open and plot Globcolour chlorophyll image in R?

Level 3 globcolour chlorophyll images (download from hermes) are in netCDF format. Those files can be imported via ncdf package to R 3.1. ch.nc = ...
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1answer
131 views

Superimposing high resolution NetCDF data on Google Earth?

I have got output from Weather Research Forecasting Software(WRF) in NETCDF format. These are basically high resolution forecasts for precipitation and wind barbs(sea breeze circulations or slope ...
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1answer
107 views

Extract single datapoint from netCDF file in R using ndcf

I'm trying to extract a single variable from a 3-dimensional netCDF file. [1] "file blah.nc has 3 dimensions:" [1] "longitude Size: 200" [1] "latitude Size: 100" [1] "time Size: 2000" [1] ...
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2answers
522 views

GDAL for Python: extracting subdomains from NetCDF file?

I need to make a script that processes a NetCDF file that contains 3 days of hourly forecast data from the norwegian meteorological office. The NetCDF file contains various data I need ...
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38 views

How to make a loop to MakeNetCDF Table View?

I was trying to write a code to extract grid point data from the NetCDF file. I am able to view and save the table data extracted as follow #Import system modules import arcpy # Set local ...
2
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1answer
52 views

How to save MakeNetCDFTableView output?

I was trying to extract the time-series data from the netcdf using grid points (lat/long) by MakeNetCDFTableView. I have more than 100 grid points and I want to extract the data from the netcdf file. ...
2
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1answer
100 views

Are there examples of high-level interfaces to NetCDF

The R raster package and GDAL both have independent wrappers around NetCDF-4* that treat an array variable as a "complete" dataset, i.e. they provide objects or interfaces that seamlessly give access ...
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1answer
1k views

How to create a 4096x4096 png from a 1440x720 data set using GDAL?

I'm having a bear of a time trying to do something that seems fairly straightforward. I'm trying to take a netcdf file from ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/2011/AVHRR-AMSR/ and turn ...
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0answers
103 views

Inline variable substitution in ModelBuilder iteration to Make NetCDF Raster Layers?

I'm trying to convert lots of annual NetCDF files into rasters using ModelBuilder. I'm iterating over several years so the filename changes every year which works fine (using the inline substitution ...
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180 views

Open NetCDF files in ArcGIS using Multidimension Tools

as in the title mentioned, iam looking for a way to get *.nc data displayed and managed in ArcGIS. The downloadsource of my data is NCEP/NCAR Reanalysis 1: Surface Flux To be a bit more accurate i ...
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165 views

How to extract NetCDF raster values to time enabled shapefiles?

Does anyone know a good way to extract NetCDF raster values to each data point from a time enabled shapefile at the correct time? I have tried using a python script tool and a loop that steps ...
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1answer
177 views

Extracting NetCDF raster values to time enabled shapefiles - what's wrong with my python script?

I'm trying to make a python script tool that extracts the values from a NetCDF raster to each data point from a time enabled shapefile at the correct time. My NetCDF raster consists of monthly sea ...
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1answer
188 views

Interpolation with netcdf4 file

I have a netcdf4 data set that contains array and information about latitude and longitude which can be accessed with the following R command: ncvar_get(dataname, 'lon'); ncvar_get(dataname, 'lat'); ...
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1answer
116 views

netcdf daily data to monthly raster layers

I have a netcdf (.nc) file of 95GB which consisted of daily data for a 50 years period. I tried to process this with ArcGIS (Multidimension tools – MakeNetCDFRasterLayer command) and it was not ...
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1answer
584 views

Projecting Imported NetCDF file correctly?

I have 360 NetCDF files (.nc) that I need to import into ArcGIS. They hold monthly historical climate data in the U.S. When I tried to import one, using the Make NETCDF Raster Layer tool, the ...
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1answer
181 views

How can I take a large netcdf and convert it to interpolated values in a different set of coordinates?

I've got a large netcdf (a small portion of the data is here) with the data in an even grid associated with an Albers Equal Area Conic projection. I've got the corresponding latitudes and longitudes ...
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1answer
283 views

netCDF does not display properly in QGIS 1.8 [closed]

I have a netCDF file of fire emissions on a regular grid of 12 km by 12 km grid cells with 200 east-west grid cells by 161 north-south grid cells centered on the continental United States. The map ...
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61 views

How to stack netcdf format raster layers in to one layer?

I have Cmorph precipitation data in nedcdf format and is 2 thousand in number. I want to stack all these layers in one to extract point values from layers for time series analysis. I tried R, python ...