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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9
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2answers
4k views

Convert timeseries stack of GTiff raster to single NetCDF

Moving from gdal-dev mailing list: On Mon, Sep 2, 2013 at 7:09 PM, David Shean wrote: Hi list, I'm trying to package a timeseries of GTiff rasters with identical projection/extent/resolution as a ...
4
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1answer
775 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 ...
8
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3answers
966 views

Longitudinal Issues with NetCDF data

I am seeking advice on working with world data sets where the GCS has a positive range (0 degrees to 360 degrees). The data I am working with are NetCDF oceanographic data and have positive coordinate ...
3
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1answer
1k views

Subsetting a curvilinear netCDF file (ROMS model output) using a lon/lat bounding box.

I am attempting to get salinity data from one of the ocean models in our region and have run into a roadblock. This is ROMS model output in NetCDF form, but the grid is curvilinear (lon and lat arrays ...
1
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2answers
86 views

Reading *.cdf files in ArcMap?

I received some geospatial data (on rainfall) in a "cdf" format. I have worked with "nc" files and uses the 'Make NetCDF Raster Layer' tool in ArcMap to read NetCDF files. However, I wasn't able ...
6
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2answers
4k views

Batch conversion of netCDF to Raster in ArcGIS using Python

I'm having trouble using the Dimension Values (Optional) argument in arcpy.MakeNetCDFRasterLayer_md. Whatever I seem to do the output raster is always the first layer which is the default value. ...
2
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1answer
4k 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 "...
3
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1answer
198 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 ...
5
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2answers
3k views

How to load a NetCDF-file into QGIS using Python?

I have a CF-conform NetCDF-file which can be loaded into Quantum GIS (Version 1.8) by using the "Add Raster Layer"-button and subsequently choosing the file and the raster layers of interest. This ...
1
vote
1answer
104 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 ...
8
votes
3answers
630 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 ...
3
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1answer
1k views

Importing grib, grib2, netcdf to PostGIS

According to grib2 to raster? (grib2 -> raster2pgsql -> PostGIS 2.0 -> GeoServer), it seems like that grib2 can be treated as raster directly. Is it the so called "standard" way? How about ...
2
votes
1answer
194 views

Using 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), ...
2
votes
2answers
2k views

R Raster package: write NetCDF with time dimension

I am writing a rasterbrick with multiple layers to a netcdf file using the raster package in R: writeRaster(gridfile, "Data", "CDF", overwrite=TRUE, varname="Data",varunit="mm.d-1",longname="...
1
vote
1answer
98 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 ...
1
vote
1answer
343 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....
1
vote
0answers
65 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 ...
1
vote
1answer
636 views

Issues with importing a netcdf file to arcgis as a point feature layer

I have a netcdf file of my computational grid. It is a structured curvilinear grid. When I make a feature layer from a it with the Multidimension Tool toolbox, I cannot get the point locations to plot ...
0
votes
2answers
10k 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 (...
0
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0answers
273 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: ...
0
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1answer
184 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 -...
0
votes
2answers
145 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 ...
0
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0answers
42 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 ...