TREND ANALYSIS OF GRAVITY AND TOPOGRAPHIC DATA IN THE ANTARCTIC REGION

• Main Authors: マツモト タケシ, カミヌマ カツタダ, Takeshi MATSUMOTO, Katsutada KAMINUMA
• Format: Report
• Language: English
• Published: Japan Marine Science and Technology Center 1989
• Subjects: Antarctic; The Antarctic; Antarc*; Ice Sheet
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2589; http://id.nii.ac.jp/1291/00002589/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2589&item_no=1&attribute_id=18&file_no=1

Trend analysis method is quite popular in the study of digital image processing. The method is applied to the Antarctic geophysical data such as bedrock topography, gravity anomaly and thickness of ice sheet. The grid data derived from these geophysical observations and simple procedures of numerical derivatives and plotting clearly express the characteristics of geological structures : plate boundaries such as mid-oceanic ridge crests, boundaries of oceanic and continental blocks, which are useful for interpretation of tectonics in the Antarctic region.