Investigation of Water Exchange Mechanism of Miyako Bay by Remote Rensing, Part 1

概要

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Located in the east coast of northern Honshuu Island, Miyako Bay enjoys lots of fishery harvest, e.g., salmon, oyster, ear-shell, etc. A remote sensing project of Miyako Bay was undertaken from 1979 to 1983. During the time, 13 sets of airborne MSS data and sea truth data were collected for various seasons and tidal conditions.<BR>The data were analyzed from two points. Through regression analysis, one is for evaluation of remote sensing for water quality detection. Water temperature is effectively detected by thermal band image, but results for water color items, e.g., Secchi disk depth, chlorophyl a concentration, SS etc., were very poor. The other point is to investigate water change mechanism of the bay by using remotely sensed water temperature images and sea truth data of salinity. It is found that Miyako Bay takes several water exchange patterns depending on conditions of tide, wind and coastal current. These results are divided in two parts. This Part I surveys the project activity, and<BR>describes the results of regression analyses and water exchange mechanism in Spring time. In part 2, water exchange mechanisms in other seasons are described.
社団法人日本リモートセンシング学会の論文