National Technical Reports Library

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Feasibility Study of a Quadrilateralized Spherical Cube Earth Data Base.

ADA010232

Publication Date	1975
Personal Author	Chan, F. K.; O'Neill, E. M.
Page Count	141
Abstract	This report describes the results of research into the feasibility of storing satellite meteorological data in a high-resolution, equal-area, computer-accessible data base. Equal area elements are stored in square arrays representing the faces of a cube inscribed within the Earth. The required area-preserving transformation is presented along with its inverse. A unique array-mapping scheme is presented, which preserves near-neighbor relations and allows rapid index computation. The implementation of this data base on rotational storage devices is discussed, and calculated execution times are presented.
Keywords	Earth sciences Scientific satellites Data bases Meteorological data Mapping Partial differential equations Computer graphics Computations Data storage systems Computer programs
Source Agency	Navy
NTIS Subject Category	62 - Computers, Control & Information Theory 55C - Meteorological Data Collection, Analysis, & Weather Forecasting
Corporate Authors	Computer Sciences Corp., Silver Spring, Md. System Sciences Div; Environmental Prediction Research Facility (Navy), Monterey, Calif.
Document Type	Technical Report
Title Note	Final rept. May 74-Mar 75.
NTIS Issue Number	197515
Contract Number	N66314-74-C-1340

Feasibility Study of a Quadrilateralized Spherical Cube Earth Data Base.

Feasibility Study of a Quadrilateralized Spherical Cube Earth Data Base.
ADA010232

Publication Date	1975
Personal Author	Chan, F. K.; O'Neill, E. M.
Page Count	141
Abstract	This report describes the results of research into the feasibility of storing satellite meteorological data in a high-resolution, equal-area, computer-accessible data base. Equal area elements are stored in square arrays representing the faces of a cube inscribed within the Earth. The required area-preserving transformation is presented along with its inverse. A unique array-mapping scheme is presented, which preserves near-neighbor relations and allows rapid index computation. The implementation of this data base on rotational storage devices is discussed, and calculated execution times are presented.
Keywords	Earth sciences Scientific satellites Data bases Meteorological data Mapping Partial differential equations Computer graphics Computations Data storage systems Computer programs
Source Agency	Navy
NTIS Subject Category	62 - Computers, Control & Information Theory 55C - Meteorological Data Collection, Analysis, & Weather Forecasting
Corporate Authors	Computer Sciences Corp., Silver Spring, Md. System Sciences Div; Environmental Prediction Research Facility (Navy), Monterey, Calif.
Document Type	Technical Report
Title Note	Final rept. May 74-Mar 75.
NTIS Issue Number	197515
Contract Number	N66314-74-C-1340