Secchi

基本解释

Slowly lower the secchi disk into the water until it disappears, and note the depth.
一個黑白相間既圓板;水平放入水底;慢慢下降;直到完全睇唔見;立即記下水深.
Assessing Secchi and Photic Zone Depth in the Baltic Sea from Satellite Data
利用衛星數據估算波羅的海的透明度和透光層深度
Evaluation of Secchi Disk Transparency by Using Field Spectral Measurements in Nanhu Lake, Changchun
長春南湖水躰透明度高光譜定量模型研究
On the relationship between the outcome of secchi disc depth and rays on the spot
淺談地表水透明度監測結果與現場光線的關系
Secchi rs classification
塞齊分類法