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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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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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 ...
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1answer
934 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 ...
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405 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
160 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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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 ...
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1answer
103 views

Arcpy & ARCGIS10: Make netCDFRasterlayer, error attribute not found

I am trying to create a raster layer from a NetCDF File using Python. If I am using the Arcgis 10 Python window it works without issues. But executing the same script in Pythonxy gives the error: ...
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203 views

QGIS 1.8.0 on Linux treats NetCDF 4 as HDF5

I've been generating some large (28800x13920) grids of BYTE data representing the NALCMS2005 North American Land Cover dataset (original 250m projected data resampled to a WGS84 grid at 15 arc sec). I ...
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2answers
780 views

Using NetCDF for point time-series observations?

I have a large growing dataset of water and climate observations for several years in regular hourly time-step. The number of locations is cca. 1000 locations with latitude, longitude coordinates. At ...
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618 views

How do I solve Gdalwarp error 'too many points failed to transform' for remapping Geostationary to Lambert conformal?

I am trying to remap from Geostationary to Lambert conformal using gdalwarp. My input data is in netcdf, and is in geographic coordinates (degrees) and I would like to output the remapped data to ...
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2answers
444 views

Copying netCDF coordinate system

UPDATE: 7/26/2013 The issue I'm encountering is a known bug with the netCDF-Java API described in ticket TDS-391: A user would like to convert radar data to netCDF format. Unfortunately, the data ...
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746 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, ...
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368 views

How to create contour from NetCDF?

I have downloaded Bathymetry data from GEBCO. Its in NetCDF format. I want to create contour from it. I tried so many tools to convert the file into raster but couldn't do so. How can I create raster ...
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1answer
264 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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1answer
539 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 ...
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1answer
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How to re-project ease( Equal Area Scalable Earth) grid with a ~25 km cylindrical projection to WGS84 0.25 degree? [duplicate]

I have nc (NetCDF) files for global soil moisture. From the metadata, the projection is cylindrical and the resolution is 25 km (it is based on authalic sphere based on International 1924 ...
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1answer
267 views

How do I create rendered vector field in qgis

Perhaps I am misunderstanding the "vector field renderer" and "VectFieldCalc" plugins, but I have no idea how to make a vector field of arrows, with directions and magnitude. I have the data loaded ...
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209 views

How to Create a Vector Field from Separate u and v Data Files?

I am using Quantum GIS and trying to create a vector field using data from two separate netcdfs. One contains the u data, one contains the v data. Can this be done, and if so, how? Thanks. Jason
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71 views

What are the characteristics of a raster to Netcdf layer in ArcMap?

Specifically, when trying to edit the attribute table? This is would be for work purely in ArcMap, and converting raster to Netcdf. I have a land cover layer (that I've converted to a raster to ...
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0answers
259 views

How to use GRIB data in ArcGIS? (Zonal Stat as Table)

I am trying to calculate zonal stats as table with a python script for 45 .grib files from the ERA-40 Monthly Mean of Daily Mean database (http://data-portal.ecmwf.int/data/d/era40_moda/) for certain ...
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1answer
346 views

How to automate downloading “slices” of data from Web Coverage Service (WCS)?

I'd like to automate downloading "slices" of data from a WCS service. This is a WCS 1.1.2 service, supporting netCDF. The data are updated daily - forecasts from an atmospheric regional model - and ...
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1answer
785 views

How can I export a shapefile to netCDF?

I have a shapefile of the worlds biomes Terrestrial Ecoregional Boundaries Shapefile (TNC), 12/14/09, 50MB download from available from http://conserveonline.org/workspaces/ecoregional.shapefile ...
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1answer
883 views

Extraction of DEM from netCDF file into ASCII XYZ format

I need to extract a DEM of a waterbody from a netCDF file so I can ultimately convert the DEM into xyz format. I'm not sure how to go about doing this, and so far, I have tried to create raster layers ...
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154 views

Geoprocessing Service to return Multidimensional Raster from a NetCDF file

I have tried to make this work for weeks with no results. I am trying to create a model in ArcMap that uses the Multidimension Tool "Make NetCDF Raster Layer" and return a raster to which I can apply ...
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524 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
347 views

Consume netcdf Data with ESRI Javascript API?

We've got loads of raster data that can be organized by time, so we thought packaging them into netCDF would be a good a idea. But we also want to serve out the data to a web application that ...
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2answers
1k views

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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3answers
2k views

How do you 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 ...
4
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1answer
2k 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. ...
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Speed of various raster data formats

I'm having trouble locating any discussion or comparative benchmarking of different raster file formats (e.g., for use in data analysis in R). Does anybody have any insight into why particular formats ...
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3answers
742 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 ...
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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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2answers
299 views

Convert ARC BIL to netCDF

We are interested in using a dataset created by a fire lab. The data is in ARC BIL format. Is there a way to convert this into netCDF?