ABSTRACT: Map-Based Hypermedia Display of Remote-Sensing Data
T. Rubin, K. Lanz, R. J. P. Lyon, C. McKnight
We present an interactive, map-based search program to help geologists find out what remote-sensing data exists in institutional data files, to provide full details of the image quality (location of clouds, etc.), and to present selected frames in black and white or color on an adjacent high-resolution monitor.
A series of maps is presented in a hierarchical sequence--from global, continental, national, and regional down to district and play levels--by which the user can pinpoint the location desired using a familiar map-based point-and-click strategy. When the desired region has been chosen, a secondary menu offers the choice of image type: Landsat MSS, TM, SPOT, radar, aircraft scanner, or aerial photography coverage. Using the selected image type, the user is then presented with the primary level of detail: date, percent cloud cover, spectral bands, etc. Additional requests from a tertiary menu allow more complete details to be shown, together with the location of the imagery within the institution's files. Additionally, nonimaging remotely sensed data such as spectral measurements, other geophysical coverage such as seismic and gravity surveys, and geochemical survey locations can be similarly indexed, located, and presented on the color monitor, either as map overlays (GIS) or as spot locations.
A Macintosh Plus, SE/30, or Mac II using Hypercard is used to activate an IBM PC/AT-based image processor card and a high-resolution color RGB monitor. The image data are stored at the IBM PC/AT on a WORM optical disk, from which the images and other bit-mapped data are displayed.
AAPG Search and Discovery Article #91003©1990 AAPG Annual Convention, San Francisco, California, June 3-6, 1990