Measurement of Sea Ice Drift Far from Shore Using LANDSAT and Aerial Photographic Imagery

A semi-automatic procedure for transferring the location coordinates of a common set of ice features from the Earth coordinate system of one LANDSAT image to another is discussed. Errors in the transferral technique are examined using imagery over land and are found to be dominated by deviations (as...

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Bibliographic Details
Main Authors: Hibler,W D , III, Tucker,W B, Weeks,W F
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1975
Subjects:
Cartography and Aerial Photography
Physical and Dynamic Oceanography
*REMOTE DETECTORS
*SEA ICE
*PHOTOGRAPHIC IMAGES
DEFORMATION
GRIDS(COORDINATES)
DRIFT
AERIAL PHOTOGRAPHY
SCIENTIFIC SATELLITES
LANDSAT satellites
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA041615
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA041615
Description
Summary:A semi-automatic procedure for transferring the location coordinates of a common set of ice features from the Earth coordinate system of one LANDSAT image to another is discussed. Errors in the transferral technique are examined using imagery over land and are found to be dominated by deviations (as large as 8 km) in the actual position of the center of the image from its states position. A least-squares strain program, which utilizes polar coordinates to eliminate spurious effects that may occur if the coordinate system of a given floe is used as the common coordinate system, is discussed. The use of uncontrolled aerial photography to measure sea ice strain results in errors of the order of 1%. (Author) Presented at International Symposium on Ice Problems (3rd), Held on 18-21 Aug 75 at Hanover, N.H.

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