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conferenceseries
.com
Volume 8, Issue 8 (Suppl)
J Earth Sci Clim Change
ISSN: 2157-7617 JESCC, an open access journal
Earth Science Congress 2017
September 18-19, 2017
September 18-19, 2017 Hong Kong
6
th
International Conference on
Earth Science and Climate Change
Monitoring chlorophyll-A and sea surface silicate concentrations using MODIS data
Yuanzhi Zhang
1
and Zhaojun Huang
2
1
Nanjing University of Information Science and Technology, China
2
Chinese University of Hong Kong, Hong Kong
C
ontinually supplied with nutrients, phytoplankton maintained high productivity under ideal illumination and temperature
conditions.
In situ
data in the south part of Cheju Island in the East China Sea (ECS), which has experienced spring blooms
since the 2000s were acquired during a research cruise in the spring of 2007. Compared with
in situ
measurements the MODIS
chlorophyll-A (chl-A) products show a high stability in the area. Removing a few error stations data, the correlation between
nutrients and chl-A concentration in the study area is examined. The result shows that there is a high positive correlation
between silicate and chl-A concentration using regression analysis. MODIS chl-A products and the sea surface temperature
(SST) are used to determine the surface silicate distribution. The silicate concentration retrieved from MODIS data show a
good agreement with
in situ
measurements with R
2
=0.l803, root mean square error (RMSE)=0.326 μmol/L (8.23%) and mean
absolute error (MAE)=0.925 μmol/L (23.38%). These results support previous studies in the same area. MODIS chl-A products
and the sea surface temperature (SST) are used to determine the surface silicate distribution.The silicate concentration retrieved
from MODIS data show a good agreement with
in situ
measurements with R
2
=0.803, root mean square error (RMSE)=0.326
μmol/L (8.23%) and mean absolute error (MAE)=0.925 μmol/L (23.38%).
yuanzhizhang@cuhk.edu.hkJ Earth Sci Clim Change 2017, 8:8 (Suppl)
DOI: 10.4172/2157-7617-C1-031