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Remote Sensing Information Gateway (RSIG)

If you are having trouble running RSIG, you may need to clear the Java applet cache. Check the RSIG version number in the lower right corner of the applet, under the contact information. If the version number is 2014062718, then your applet version is up-to-date. If not, follow these instructions to clear the cache:

Windows instructions.
Mac instructions.

Mac OSX 10.8 users should use Firefox to run the RSIG2D applet.

The Remote Sensing Information Gateway (RSIG) allows for quick and easy access to subsets of multi-terabyte, environmental datasets via an interactive, Web browser-based application. A file download and parsing process that typically takes months is reduced to minutes with RSIG.

Running RSIG2D in Your Web Browser
  1. Follow these directions to set Java Runtime Engine memory parameters.
  2. Run the RSIG2D applet.
Running RSIG2D as a Standalone Application
  1. Right-click here to save the file your Home directory; when saving, name the file "RSIG2D.zip". On Windows 7, for example, the home directory is C:\Users\userid.
  2. To run RSIG, double-click rsig2d.bat (Windows) or the rsig2d script (Mac/Linux).
Running RSIG3D as a Standalone Application
  1. Right-click here for Windows to save the file your Home directory; when saving, name the file "RSIG3D.zip". On Windows 7, for example, the home directory is C:\Users\userid.
  2. Right-click here for Mac to save the file your Home directory; when saving, name the file "RSIG3D.zip". The home directory is /Users/userid.
  3. To run RSIG3D, double-click RSIG3D.exe (Windows) or RSIG3d.app (Mac).

About RSIG

RSIG also allows users to integrate their selected datasets into a unified visualization. The user can tap into a wide range of key environmental models and data, such as NASA's Moderate Resolution Imaging Spectroradiometer (MODIS), the Environmental Protection Agency's (EPA) Community Multi-scale Air Quality (CMAQ) model output, National Environmental Satellite, Data, and Information Service (NESDIS) biomass burning data, and ground station measurements from AIRNow and EPA's Air Quality System (AQS).

RSIG will render each dataset, and then overlay them on a map of the selected region, automatically aligning information from various spatial and temporal scales into a unified visualization.

Currently, RSIG focuses on atmospheric data, but it can be extended to support other types of geospatial data. A list of available datasets accessible via RSIG is available on this site.

The benefit to users and consumers of environmental data is fast acquisition of only the data they want to see and in a standard format they can save to their desktop PC.

RSIG Updated with New Features

June 2012: Added NEUBrew (NOAA-EPA Brewer Spectrophotometer UV and Ozone Network) ozone profile data.


March 2012: Added CALIPSO Level-2 5km Aerosol and Cloud Profiles.


With additional data-filtering options.


And MODIS Level-2 10km "Deep Blue" Aerosol Optical Depth (over sand / high-reflectance).


January 24, 2011: Added a color topo map background.

May 12, 2010: EMVL released a new version of RSIG. Among the new features and developments:

RSIG's Availability

One of RSIG's key innovations is its data delivery using conventional Internet and Web network connections. However, additional data traffic during peak network usage may degrade the overall system responsiveness or a remote host's system may be unavailable or unresponsive. The RSIG applet will display messages signaling data unavailability in such cases.

RSIG's Key Features

RSIG screenshot

In this screenshot, the Remote Sensing Information Gateway (RSIG) overlays multiple datasets into a single visualization that you can save as an animation or individual image files.

RSIG's Architecture

This poster describes in detail RSIG's flexible and extensible architecture. The architecture enables RSIG to serve many types of data with an emphasis on convenience, high-performance, data integrity, and security. Depending on the speed of your connection, the poster may take a few seconds to load for viewing.

RSIG2D Video Demonstration

This 26-second screen capture shows RSI2D retrieving various datasets describing the passage of Hurricane Katrina through the Gulf region. Five days of satellite, wind, and cloud data clearly show Katrina's path as it makes landfall. Atmospheric researchers can use RSIG to easily view and retrieve all datasets related to a specific event, making it possible for them to analyze the data much closer to real-time than has been possible before. Right-click on the link to download or view the animation:

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