Abstract :
Remotely sensed data collected from the Earth Resources Technology Satellite (ERTS-1) are capable of providing synoptic, large area, repetitive coverage of oceanographic parameters at high resolution. Photointerpretation techniques and digital analysis of ERTS-1 multispectral imagery has permitted: (1) accurate depth detection (± 0.25 meters) for depths to 9 meters; (2) updating of navigational charts depicting previously unreported shoals and accurate positioning of previously reported shoals at costs of only $.58 per square kilometer; (3) correlation of schools of menhaden within certain turbidity areas; (4) discovery of new upwelling areas; (5) detection and monitoring of sea ice, determination of its relative age, and iceberg tracking; (6) monitoring and detection of oil spills, acid and sludge dump sites; (7) current mapping; (8) wetlands delineation; and (9) coastal erosion and sedimentation at significant savings of time and cost.
Keywords :
artificial satellites; bathymetry; geophysical image processing; oceanographic techniques; oil pollution; remote sensing; sea ice; ERTS-1 multispectral imagery digital analysis; Earth Resources Technology Satellite; acid dump sites; coastal erosion; coastal sedimentation; current mapping; depth detection; high resolution oceanographic parameters; iceberg tracking; large area oceanographic parameter coverage; menhaden schools; navigational chart update; oceanographic parameter analysis; oceanographic parameter remote sensing; oil spill detection; oil spill monitoring; photointerpretation techniques; remotely sensed data; repetitive oceanographic parameter coverage; sea ice age; sea ice detection; sea ice monitoring; sludge dump sites; synoptic oceanographic parameter coverage; turbidity areas; upwelling areas; wetland delineation; Costs; Earth; Educational institutions; Image analysis; Marine technology; Monitoring; Multispectral imaging; Remote sensing; Satellite navigation systems; Sea ice;
