Views Read View source View history. Navigation Main page Recent changes Random page Help. This page was last modified on 30 November , at This page has been accessed , times. Privacy policy About Geos-chem Disclaimers. This command-line tool generates a text representation of netCDF data and can be used to quickly view the variables contained in a netCDF file.
The ncdump utility is installed with your netCDF library distribution. Visualization package for netCDF files. Ncview has limited features, but is great for getting a quick look at the contents of netCDF files.. Data viewer for netCDF files. This package offers an alternative to ncview. From our experience, Panoply works nicely when installed on the desktop, but is slow to respond in the Linux environment.
Command-line tools for manipulating and analyzing netCDF files. Useful for renaming variables and attributes, and for regridding data. Python package that lets you read the contents of a netCDF file into a data structure. The data can then be further manipulated or converted to e.
Python package that lets you read the contents of a binary punch file into an xarray Dataset object. Currently under development. Data visualzation package written in IDL. See our Converting files from binary punch format to netCDF section below :. Display the header and the coordinate values of a netCDF file, with the time coordinate displayed in human-readable format:. Arguments Filename A scalar string containing the name of the file to be created. Version History Pre 4. Product IDL Version 8.
My Account Store Contact Us. The following example shows how to create a netCDF file, populate it with data, read data from the file, and make a simple plot from the data. Values are converted to the appropriate type before being written to a netCDF file. For example, in the commands below, IDL converts the string "12" to a floating-point Variables and attributes can be referred to either by name or by their ID numbers in most netCDF routines.
When writing an IDL string array to a variable, an extra dimension the maximum string length must be added to the variable definition. Both of these situations are illustrated by the following example:.
There are two modes associated with accessing a netCDF file: define mode and data mode. In define mode, dimensions, variables, and new attributes can be created but variable data cannot be read or written. Otherwise not. NOTE: all variables, constants, operators, and parentheses used must be separated from one another by at least one space.
Default: '' all points. This can be considered as duration in seconds, and drawn vector will be distance that particle would travel in wind from data location in that length of time.
Scalar value to use for all vectors, e. Note: range of values seen in this field are given thick values from 1 to 4. Default: 0. String giving name of nCDF file field to use for each vector.
Note: range of values seen in this field are given color values from 0 to Default: same colortable as used for image display. Default: 1 filled. Note: range of values seen in this field are given angle values from 0 to Default: 0 , makes all arrowheads same size. Note: range of values seen in this field are given size values from 0 to 2. Default: 'black'. Default: 0 solid.
For data blocks e. All other Stream keywords for data handling apply to pathlines as well. Information will automatically be gathered from this file. Allows you to create graphics window and resize it before clicking 'Plot Scan'.
Can also be useful if you want to view multiple plots at once on screen. IDL places plots in active window. If you have created multiple graphics windows and want to change plot in older window, you must use this option. Active window is set by specifying an integer.
You can see which integer corresponds to particular window in upper left corner of window. Does not save vector options! Using this option to display fewer types of information can speed up parsing. Directory: Displays directory of currently selected file. You can use Browse button near 'Directory' text box to select directory instead of selecting particular file.
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