Laguna : 汽水域研究

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Laguna : 汽水域研究 4
1997-03 発行


Simultaneous Water Quality Survey with Satellite Observation in Lake Shinji(Part 2)
Sakuno, Yuji
Nakayama, Daisuke
Takayasu, Katsumi
Matsunaga, Tsuneo
Nakamura, Mikio
Kunii, Hidenobu
Smultaneous water quality surveys with satellite observation were carried out in Lake Shinji from June to November 1996. The field data were obtained in 6 out of the 9 surveys. Field data of Secchi Depth (SD), Suspended Substance (SS) and Chlorophyll-a(Chl-a) were discussed instantaneous distribution, seasonal changes and relationship of each parameter. As a result, mean distribution of SD wholy ranged about 1.0-1.5m, that of SS about 5mg/l but for the mouth of the River Hii. Distribution of Chl-a showed a trend of lower concentration along the shore than in the offshore. SD and Chl-a had no relation to seasonal changes, but SS related to seasonal changes. SD was inversly proportionalto Chl-a. SS correlated with Chl-a, but both relations changed every time.