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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Values extracted from NetCDF not matching original raw data

I am working with monthly rainfall data from University of Delaware which is available as a NetCDF from NOAA and raw text from UDel's homepage. I would prefer to use the NetCDF format but when I ...
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2answers
124 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 ...
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1answer
13 views

Plot in rstudio a NetCDF File - latbox by lonbox

I have two NetCDF-Files. One of them holds information about the temperature in 2m (t2m) , the other one about outgoing long wave radiation (olr). I want to make a scatter plot. The first part of this ...
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9 views

how to prepare tiffs to create a netcdf file

I´d like to create a netcdf file containing a mean and stddev for some variables for 12 months. At this moment each geotiff (270MB) is either a mean or stddev of a month. Now my problem is that I ...
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19 views

convert/reproject netcdf to png [closed]

I have a netcdf file with GTG data in it that I need to warp and convert to a PNG for EPSG:4326 and EPGS:3857. Information from the file: Variables: var ...
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2answers
611 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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1answer
72 views

Is it possible to append data to existing NetCDF file using ArcGIS or ArcPy?

There is a Raster to NetCDF tool for converting raster to NetCDF using ArcGIS. I need to append raster data as dimension to NetCDF? How to do that using ArcGIS or ArcPy?
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26 views

FOSS way of creating space time cube?

I've been experimenting with ArcGIS Pro's "Visualizing Space Time Cube" tool but found that there is a feature limitation when I try to publish it via ArcGIS Online. My goal is to publish it on the ...
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9 views

Merging multiple netcfd files into a single file

I have rainfall outputs from a climate model on daily basis for about 90 years. I am looking for ways to merge multiple netcdf files having same variables for different time periods. Such as prec_2011....
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1answer
27 views

Converting raster data from netcdf to image

I'm rasterizing some wind data from oos.soest.hawaii.edu/erddap/griddap/NCEP_Global_Best to use as an overlay of a final image, but I'm having issues calculating the bounding box of the final image. ...
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2answers
28 views

Randomly extract value in time dimension at point location from NetCDF?

I have a set of point locations (point feature dataset) and a netCDF file containing 30 years of daily precipitation data. My goal is to randomly select a precipitation value in the time dimension ...
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42 views

How to display SRTM15 PLUS netcdf grid? [closed]

I'm trying to display SRTM15PLUS netcdf grid (topo15.grd) with different software (QGIS, ArcGIS, IDV) but I always get the same messed up result. Any suggestions? SRTM15PLUS grid is available here: ...
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16 views

WRF Global variable definition

I have recently started using NetCDF libraries to extract variable values from WRF output (.nc) files. Following are values of the global variables of a d03 output file: SOUTH-NORTH_GRID_DIMENSION ...
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2answers
485 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 = open.ncdf("E:/Data/globclour/L3b_20140101-...
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1answer
26 views

Opening CHIRPS' NetCDF file in QGIS

I'm trying to open a NetCDF file from the CHIRPS dataset with yearly precipitation in QGIS 2.14 (OsX) but it hasn't worked at all. I've tried using both the NetCDF browser plugin and opening the ...
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28 views

What's the relationship between NetCDF dataset and ncdf4 class in R

I want to process ERA reanalysis data in R so I install RNetCDF package and ncdf4 package.When I open my reanalysis file using open.nc() and nc_open() functions separately in two packages, I found my ...
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1answer
215 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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1answer
822 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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22 views

Converting CDF file to NetCDF file to use in ArcMap? [duplicate]

This is a GIS question as well as a Remote Sensing question. I have downloaded CDF files from the ESA from MyEarth online and want to use them in ArcMap. In ArcMap you can Make NetCDF a Raster Layer. ...
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1answer
29 views

Arcmap - raster positioning on the map

I work in Arcmap 10.3.1. I have raster dataset - spatial reference 3413 My problem is that I can not send this data on a map. Sequence: Add raster dataset Add basemap How do I display the ...
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1answer
21 views

Swapped axes in R raster brick plot from netcdf

I am using the R raster package to import a tiny sample netcdf file, available here: https://www.dropbox.com/s/fht4g52p948vxva/persiann.ncml.nc?dl=0. The main data website is: https://www.ncdc.noaa....
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21 views

How can I create a NetCDF from precipitation rasters data in R? [duplicate]

I have a lot of precipitation raster data (more 5000 files GeoTIF), created by kriging interpolation. All grid cells have the same size and the maps the same spacial extent I want merge all data in ...
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21 views

Global NetCDF datasets with station time series data?

I´m working on a web application which uses temperatur and precipitation data. Currently i´m using only globally interpolated, multidimensional rasterdata from terrestrial stations (queried with x,y,t)...
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44 views

Failed to create a raster-brick from a netCDF file (.nc)

I am trying to build a raster-brick from a netCDF file (network Common Data Form) leave this link for more information () but to make a brick (which is part of the package raster) throws me the ...
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74 views

Visualizing netCDF file with unknown projection

I'm having a tough time visualizing a netCDF file with poor metadata in ArcMap, which is probably not a surprise. I know the file to contain ozone concentrations over the United States. If I try to ...
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1answer
84 views

Using Panoply command line scripts

I have been using Panoply for a while now, and I noticed that you can export a command line script to reproduce the figure. If I look at the first lines of the script, it tells me that I should run it ...
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6 views

Plotting a NetCDF with only 1 grid cell using Panoply

I have a .nc file with only 1 grid cell (1 latitude and 1 longitude). Whenever I try to plot it in panoply, of course, all the variable appear to be 1D. Is there a way to plot the point together with ...
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35 views

How to convert raster in UTM to lat/lon using GDAL (or other tool)

I have a .tiff file given with UTM coordinates that I'd like to convert to a .nc (NetCDF) file with latitude/longitude coordinates. I've tried with gdal_translate and gdal_warp but these did not work. ...
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30 views

Extract many bands out of a .tif

I have downloaded a netcdf file from NOAA's website, with monthly means over many years. I have opened it in ArcGis with "Make netcdf raster layer" and have converted it into a .tif file following the ...
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1answer
36 views

How to deal with two dimensional lat and lon variables in a NetCDF file in R?

I'm trying to convert a NetCDF file to a dataframe in R using the RNetCDF package. The NetCDF file is very different from what I have experience with, in that the lat and lon values each have two ...
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1answer
15 views

Does NetCDF4excel provide packed or unpacked values?

I'm using the NetCDF4excel tool to work on files from the ERA Interim database. I'm wondering whether I should adjust the values of the variables produced by the tool using each variable's "...
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1answer
50 views

How to read in a NetCDF file in IDL and save out to a GTIFF, single routine?

Does anyone have a simple script to read in and then save out a NetCDF file to a tiff file? The files I have lat / long / and a precipitation variable, that's it. I'd like to convert a list of them in ...
3
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1answer
140 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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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
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1answer
122 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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43 views

Extracting weather data at multiple locations from NetCDF with python

I am trying to extract weather data from a NetCDF file at multiple locations using python. The file (AROME_MetCoOp_00_DEF.nc_20160128) is from met.no here File information: <type 'netCDF4....
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36 views

Offset and scale of netCDF rasters using Python and ArcGIS

I'm using the arcpy.MakeNetCDFRasterLayer_md command in Python to convert a netCDF archive into multiple rasters, one for each date. Below is a minimum working example of my code, that I've written ...
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. ...
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0answers
31 views

Resampling netcdf file?

What is the best way to change the cell size of a netcdf file, keeping it as netcdf? I have looked into ArcGIS and GDAL and have not found anything yet. I prefer to use python if a solution is ...
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1answer
177 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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14 views

Creating NetCDF file from Rasters using ArcGIS for Desktop?

I have a series of one-band rasters (365 .tif files) and want to store these in a NetCDF format file, ideally using ArcGIS Multidimension tools. I’m interested in knowing a workflow for this is, as ...
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52 views

Changing/ updating dimension values of ncdf file in r

I posted this question to SO but in hindsight, gis.se is a much more suitable place: I have several ncdf files that do not have the correct spatial dimension values so I want to update these values. ...
3
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3answers
70 views

Statistical Analysis of Climate Data

I am doing a study on how a changing climate is influencing the spread of an invasive species of moth. I have climate data in the netCDF format which I have made into both rasters and point ...
3
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1answer
184 views

transpose large netCDF with GDAL, NCL, NCO or CDO

I have a large netCDF file (444GB) that I would like to transpose. The file is flipped with latitude on the x-axis and lon on the y-axis. See pictures of one band below. Not correct Correct: I ...
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91 views

Which statistical methods to compare the spatial distribution of two different variables in two raster maps?

I am working with two global raster maps using the R Software (original file: netCDF for map 1 and GeoTIFF for map 2), with a resolution of 5 min of arc. Map 1 contains data on the share of the land ...
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2answers
552 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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33 views

S57 Ecdis extract data

I have multiple S57 Ecdis files and would like to extract some data out of them. In specific some 'depth' data which is bound to lat/lon coordinates. I will need to bulk process all the data and group ...
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2answers
84 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 ...
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384 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
67 views

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?