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A quadrilateralized spherical cube Earth data baseA quadrilateralized spherical cube was constructed to form the basis for the rapid storage and retrieval of high resolution data obtained of the Earth's surface. The structure of this data base was derived from a spherical cube, which was obtained by radially projecting a cube onto its circumscribing sphere. An appropriate set of curvilinear coordinates were chosen such that the resolution cells on the spherical cube were of equal area and were also of essentially the same shape. The main properties of the Earth data base were that the indexing scheme was binary and telescopic in nature, the resolution cells were strung together in a two dimensional manner, the cell addresses were easily computed, and the conversion from geographic to data base coordinates was comparatively simple. It was concluded that this data base structure was perhaps the most viable one for handling remotely sensed data obtained by satellites.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Chan, F. K.
(Systems and Applied Sciences Corp. Riverdale, MD, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1980
Publication Information
Publication: NASA. Goddard Space Flight Center Fifth Ann. Flight Mech.(Estimation Theory Symp.
Subject Category
Accession Number
Funding Number(s)
CONTRACT_GRANT: N66314-74-C-1340
Distribution Limits
Work of the US Gov. Public Use Permitted.
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