Tagged Questions

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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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 ...
2
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1answer
34 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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1answer
22 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
29 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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23 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 ...
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1answer
52 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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34 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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55 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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1answer
63 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
56 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
123 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
74 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
120 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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0answers
24 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 ...
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1answer
45 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. ...
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66 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
75 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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61 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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118 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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113 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
140 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
94 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
129 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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51 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 ...
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107 views

Opening netcdf in arcmap as a raster with uneven coordinate spacing?

I have SMOS CATDS 2010-2013 daily data that is in EASE-grid netcdf format. I have 100 sites that I need specific daily soil moisture values for from this dataset. I have daily AAFC CATDS soil ...
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1answer
148 views

problem reading netcdf

I am using qgis 2.2 (I have also tried this in qgis 2.0 and arcgis 10 with the same result) (I have some basic understanding of netcdf, but I am probably missing a lot of details...) I have manged to ...
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1answer
28 views

Create NetCDF subset with different sizes

I have to create a netCDF file with different subsets. For example subset1 must be a 2d matrix, subset2 a vector, etc. I am using functions of netcdf library in C/C++ code: nc_create for the file ...
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1answer
178 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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0answers
68 views

Dates are off when opening netcdf file in R

I have a netcdf file with the time dimension that goes from 12/2007 until 12/2010 with monthly time steps. I can see the correct dates in both arcgis and panoply. Panoply tells me this file is a ...
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2answers
1k views

How to convert a NetCDF file to GeoTIFF using GDAL

I have a NetCDF file which contains data for the number of rain days in the UK. I'd like to convert it to a GeoTIFF, but can't get GDAL correctly georeference it. See dumps from gdalinfo below. I ...
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1answer
380 views

how to extract a variable at specific time and depth from netcdf in r

I have the following netcdf file containing 7 variables and 4 dimensions. [1] "file data.nc has 4 dimensions:" [1] "depth Size: 12" [1] "time Size: 37" [1] "x Size: 305" [1] "y Size: 432" ...
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1answer
206 views

how to create CF-compliant NetCDF from ESRI Grid?

been trying to make a CF-compliant netCDF file from an ESRI Grid. I want to serve it w/the THREDDS server. Been using gdal_translate. I know the netcdf output option is definitely not CF compliant, so ...
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0answers
66 views

Update a NetCDF file using GDAL

I have to edit a NetCDF file using GDAL in C++ code. When I try to update a subset I have this error message: ERROR 6: The NETCDF driver does not support update access to existing datasets. How can ...
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1answer
131 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 ...
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1answer
63 views

NetCDF file size calculation

I'm planning to use the NetCDF file format for storing my time-series observation data on a server. I would like to use the "NetCDF-CF" conventions. Before I start writing any scripts for importing ...
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0answers
268 views

Successfully extracting values from a GRIB2 file…is it possible?

Let me say first that I'm starting to work with GRIB2 files, I've read the docs, and more or less know how they are structured. My goal is to be able to parse some GRIB2 files from NOAA, more ...
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1answer
175 views

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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0answers
148 views

Why does Make NetCDF Raster Layer tool give Error 000276?

I am trying to view NetCDF files created into WRF into ArcMap 10.2. I used the 'Make NetCDF Raster Layer' Tool as described on the user-guide however, I keep getting the same error: 000276. Would any ...
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2answers
122 views

Data interpreted incorrectly when opening NetCDF file in ArcMap

I'm trying to open a NetCDF file with some current data on a polar stereographic projection in ArcMap, but the data are not displayed correctly. The only obvious problem I can see is that ArcMap seems ...
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1answer
272 views

ArcMap Raster to NetCDF - lat/long

I need to convert a few files which are projected in WGS84 into netCDF. NetCDF requires lat/long. I am a bit confused on how the process is handled by ArcMap especially after looking at the online ...
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1answer
131 views

Longitude range NETCDF vs ASCII

I am trying to preprocess a netcdf dataset with arcgis such that it has the same extent, cellsize and format as an ascii dataset I am using. Both are visualized in the image below: The big one in ...
2
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1answer
192 views

netCDF-java has trouble reading this netCDF file(format) and fetching values from the latlon dimension

I'm developing an application where I need to extract variable-values from netCDF files. I'm processing several different formatted netCDF files and now one format seems to be creating some issues. ...
2
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0answers
187 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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2answers
515 views

Sum many netCDF rasters

For the first time, I am using NetCDF data files containing daily data about soil moisture at a global level. I want to be able to obtain monthly mean value of soil moisture for each grid cell. ...
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2answers
308 views

How to upload a NETCDF to Geoserver using cURL?

I'm trying to upload a NETCDF file (.nc) to Geoserver Store of Coverage ImageMosaic The command is this: curl -v -u admin:geoserver -XPOST -H "Content-type: text/plain" -d ...
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0answers
62 views

In a ROMS model, how can a get the time series data for a parameter using a lat/lon point?

As a follow on question to my initial post here I would like to get point data over a time series from a ROMS model. For example, given the netCDF file hosted via Thredds here: ...
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1answer
642 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 ...
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1answer
1k views

How can i read netcdf file of station data

Please can anyone have experience with netcdf data with irregular grid. my data file is taken from NCEP ADP Global Upper Air and Surface Weather Observations (PREPBUFR format) So i need to extract ...
3
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1answer
915 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 ...
3
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1answer
400 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 ...