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About Rapid Response

Imagery available through Rapid Response and LANCE are available freely and may be reproduced for any purpose. We ask that you use one of the following acknowledgements:

We acknowledge the use of data products or imagery from the Land Atmosphere Near-real time Capability for EOS (LANCE) system operated by the NASA/GSFC Earth Science Data and Information System (ESDIS) with funding provided by NASA/HQ.

Or for acknowledgement of Rapid Response imagery:

We acknowledge the use of Rapid Response imagery from the Land Atmosphere Near-real time Capability for EOS (LANCE) system operated by the NASA/GSFC/Earth Science Data and Information System (ESDIS) with funding provided by NASA/HQ.

Expedited Processing

To make imagery available in less than 3 hours, expedited Level 0 data are processed using predicted attitude and ephemeris data. In some cases, this can result in significant differences exist between the near real-time LANCE products and the science-quality products. More information on near real-time products vs science quality products are available by instrument: MODIS, AIRS, MLS and OMI. Data products available through LANCE should not be regarded as science quality and should not be used for quantitative science analyses. Nonetheless, all LANCE products have been reviewed by members of the instrument Science Teams and have been approved for applications purposes.

Background

Originally, the Rapid Response system was developed to generate user-specified, geo-referenced MODIS Subsets and MODIS Near Real-Time (Orbit Swath) Images. Under LANCE, the number of imagery products made available through Rapid Response has been significantly increased to 40+ image products from MODIS, AIRS, MLS and OMI. These products are generated by the individual LANCE elements as part of the near real-time data processing. The intended purpose of these products is to support end users in the monitoring and analysis of a variety of natural and man-made hazards and disasters. Based upon discussion with the end users and members of the science team, 10 hazards/disaster/applications categories were established for which certain LANCE products can potentially be used. The categories and the associated data products are shown on the Hazards and Disasters page.

In addition to the space-borne products, data sets courtesy of the NASA Socioeconomic Data and Applications Center (SEDAC) have been added to Worldview to facilitate analyses. These include: Coastlines and administrative boundaries, population density, hazard maps (frequency and distribution of cyclones, flood, drought and volcanoes).