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NASA Distributed Active Archive Center (DAAC) at NSIDC

Polar Stereographic Data

Data Sets in the Polar Stereographic Projection

Data Display Tools

The data display tools allow the user to display data from the data files in various ways. The data display tools that are availabe are the following; click on the links for more information about that tool:

 

Tool Name dataviewer.tar.gz 
Applicable Data Sets
Polar Stereographic Projection
Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures
DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures
Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS
Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data
AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids

EASE-Grid Projection
Near-Real-Time SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures
DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures
Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures
AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent Version 4

Quarter-Degree Projection
AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures
Description The NSIDC DataViewer is an interactive tool for viewing and displaying satellite images from select NSIDC passive microwave data sets. Images in PNG, JPEG, TIFF, and other commonly used image data formats can also be viewed and displayed in a user-defined grid.

Up to 64 images can be displayed simultaneously in the DataViewer resizeable graphics window, allowing data users to page through a series of images. Images can be scaled and manipulated either individually or as a group. By moving the cursor over an image, a data user can obtain the latitude and longitude coordinates as well as the image value at the cursor location. After an image or series of images is manipulated, the contents of the graphics window(s) can be saved in a variety of image formats, including PostScript, PNG, JPEG, and TIFF.

The DataViewer is a program written in Interactive Data Language (IDL). It can be run in IDL with an IDL license, via the freely distributed IDL Virtual Machine, or as a run-time application.

Please Note:
  • DataViewer produces a scaling error with time values in DMSP-F17 SSMIS time (.tim) files. When using SSMIS .tim files, please be advised that data points will display as 1/10th of their actual value.
  • DataViewer is currently incompatible with data obtained using the Polaris search and subsetter tool.
Access FTP


Tool Name display_onset_of_melt.pro
Applicable Data Sets Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures
Description IDL program that allows the user to view the data in graphical form.
Access FTP