Long-term variation of SeaWiFS/MODIS chlorophyll-a in the Southern Ocean
- Long-term variation of SeaWiFS/MODIS chlorophyll-a in the Southern Ocean
- Ko, Eunho
- Issue Date
- Ko, Eunho, Jisoo Park, and Hyun-cheol Kim. 2014. Long-term variation of SeaWiFS/MODIS chlorophyll-a in the Southern Ocean. The 11th Japan-Korea Workshop on Ocean Color Remote Sensing. Ansan, Korea. 2014. 12. 11.-12.
- We investigated the variability of surface chl-a concentration in the Southern Ocean. To
check the long-term trend of surface chl-a concentration, we produced a 16-year-long ocean
color data set in combination of SeaWiFS (Sea-viewing Wide Field-of-view Sensor) data and
MODIS (Moderate Resolution Imaging Spectroradiometer) data. The surface chl-a anomaly
showed an increasing trend for recent 16 years in the entire Southern Ocean. However, there
were different trends when the Southern Ocean was geographically divided into three sectors
(Southern Atlantic, Southern Pacific, and Southern Indian sectors). In particular, the surface
chl-a anomaly in the Southern Indian sector indicated a decreasing tendency. To understand
what climate factors affect the long-term trend of surface chl-a concentration, we firstly
examined the relationship between the Southern Annular Mode (SAM) and surface chl-a
concentration. Correction between SAM and surface chl-a concentration was positive in the
south of Sub-Antarctic Front (SAF) whereas it was negative in the north of SAF. However, any
correlations between SAM and chl-a concentration were not shown in the Southern Atlantic
sector. Here, we discuss on the long-term variation of surface chl-a concentration due to climate
factors in the Southern Ocean.
- Conference Name
- The 11th Japan-Korea Workshop on Ocean Color Remote Sensing
- Conference Place
- Ansan, Korea
- Conference Date
- 2014. 12. 11.-12.
- Files in This Item
- Can archive pre-print and post-print or publisher's version/PDF
Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
Can archive pre-print (ie pre-refereeing)
Archiving not formally supported
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.