Tech Briefs

Global Swath and Gridded Data Tiling

This software generates cylindrically projected tiles of swath-based or gridded satellite data for the purpose of dynamically generating high-resolution global images covering various time periods, scaling ranges, and colors called “tiles.” It reconstructs a global image given a set of tiles covering a particular time range, scaling values, and a color table. The program is configurable in terms of tile size, spatial resolution, format of input data, location of input data (local or distributed), number of processes run in parallel, and data conditioning.

This software can dynamically generate global images of various temporal and spatial resolutions without having to go back to the original data files, reading and conditioning, and re-projecting the source values. It can be utilized to efficiently generate global imagery of various temporal and spatial resolutions based upon cylindrically projected tiles that have been created from swath and gridded data sets.

The package supports JPL’s Physical Oceanography Distributed Active Archive Center’s (PO.DAAC) State of the Ocean Web page (http://podaac.jpl.nasa.gov/ soto), a Google Earth-based Web interactive visualization tool.

This work was done by Charles K. Thompson of Caltech for NASA’s Jet Propulsion Laboratory. For more information, contact This email address is being protected from spambots. You need JavaScript enabled to view it. .

This software is available for commercial licensing. Please contact Daniel Broderick of the California Institute of Technology at This email address is being protected from spambots. You need JavaScript enabled to view it. . NPO-48113