[Semi-analysis algorithm to retrieve pigment concentrations in the red tide area of the East China Sea].
For the purpose of detecting and forecasting research of red tides to reduce the loss, a semi-analytic algorithm to retrieve chlorophyll-a concentrations was established in the area where red tides often brought out, according to the data collected during the red tides cruise in the East China Sea in April 2002. In the algorithm, empirical equations were made based on the coefficients from the in-situ data, including the optical properties of the research area. The in-situ data were used to validate the algorithm. The discrepancy of chlorophyll-a absorption coefficients and concentrations are mainly located in the region of 30%. The root mean deviation of the chlorophyll-a concentrations between the observed and the calculated is 0.24, the maximum relative deviation 40.93%, the mean relative deviation 18.83% and the correlation coefficient 0.83. The results show that the precision of the algorithm is high and the algorithm is fit for the research area.
Qiu
Zhong-Feng
ZF
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Xi
Hong-Yan
HY
He
Yi-Jun
YJ
Chen
Jay-Chung
JC
Jian
Wei-Jun
WJ
D000465:Algorithms; D000818:Animals; D002681:China; D002734:Chlorophyll / Q000032:analysis; D000077194:Chlorophyll A; D004141:Dinoflagellida / Q000737:chemistry / Q000254:growth & development; D009792:Oceans and Seas; D010839:Phytoplankton / Q000737:chemistry*; D010860:Pigments, Biological / Q000032:analysis*; D012623:Seawater / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*
D010860:Pigments, Biological; D014873:Water Pollutants; D002734:Chlorophyll; D000077194:Chlorophyll A