Satellite Altimetry and Global Change

As our understanding of global climate has evolved, it has become increasingly important to develop methods for monitoring large scale ocean and ice processes. With the flight of GEOSAT, satellite altimetry has achieved some of its earlier promise and has shown a remarkable capacity for obtaining sy...

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Bibliographic Details
Main Author: Johnson, D. R.
Other Authors: NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
Format: Text
Language:English
Published: 1990
Subjects:
Physical and Dynamic Oceanography
Snow
Ice and Permafrost
*ARTIFICIAL SATELLITES
GLACIERS
OCEAN CURRENTS
MONITORING
SYNTHESIS
EDGES
EDDIES(FLUID MECHANICS)
SENSITIVITY
TOPOGRAPHY
FRESH WATER
ICE
CLIMATE
WIND VELOCITY
MIGRATION
OCEANS
ALTIMETERS
LAKES
HEIGHT
WAVES
EDDY CURRENTS
SEA ICE
POSITION(LOCATION)
GLOBAL
PE63704N
WUDN294462
DD298 ONLY
REMOTE SENSING
AUTOMATED REMOTE DETECTORS
OCEAN SURFACE
HEIGHT FINDING
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA230796
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230796
Description
Summary:As our understanding of global climate has evolved, it has become increasingly important to develop methods for monitoring large scale ocean and ice processes. With the flight of GEOSAT, satellite altimetry has achieved some of its earlier promise and has shown a remarkable capacity for obtaining systematic global and basin scale information pertinent to the climate problem. This presentation opens with an overview of satellite altimeters, past and future, and of the information potential carried within the signal which can address global monitoring questions. During its 4-3/4 years of operation, the U. S. Navy GEOSAT altimeter acquired systematic data on ocean topography as well as nadir measurements of wind speed, significant wave height, sea ice, glaciers and fresh water lake levels. In the context of monitoring global change, or global sensitivity to change examples of the altimeter community's studies of ocean current systems, eddy migration, basin scale circulation, sea ice and glacier monitoring are discussed. An examination is made of the possibilities for understanding atmosphere, ocean and ice convariations using eigenmode analysis of synthesized ocean SSH, wind vectors and ice edge location. Availability: Ocean Science Directorate, Naval Oceanographic and Atmospheric Research Laboratory, Stennis Space Center, MS 39529-5004.

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