Poster (Scientific congresses and symposiums)
Characteristics of surface chlorophyll-a concentrations in the South China Sea
Huynh, Thi Hong Ngu; Alvera Azcarate, Aida; Barth, Alexander et al.
2017EGU General Assembly 2017
 

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Keywords :
Chlorophyll-a; South China Sea; DINEOF; spatial and temporal variability; MODISA; ENSO
Abstract :
[en] In this study, the spatial and temporal variability of surface chlorophyll-a (Chl-a) concentrations in the South China Sea (SCS) is investigated, using the cloud-free MODISA Chl-a data set (2003-2016) reconstructed by the Data Interpolating Empirical Orthogonal Functions technique. EOF analysis on the reconstructed data set presents the characteristics of the surface Chl-a: (1) the first mode presents the high Chl-a concentrations in the coastal regions, except those of the Palawan and Philippines, generally with peaks in summer (June-July) and winter (November-December). (2) the second mode shows the seasonal variability of Chl-a in the whole basin, increasing in winter and decreasing in summer. (3) the third mode highlights the out-of-phase variability of the southern SCS Chl-a between the west and east coasts in winter and summer. The analysis also indicates that the variability of surface Chl-a is influenced by ENSO with a time lag of 5-9 months.
Research center :
GHER
Disciplines :
Earth sciences & physical geography
Author, co-author :
Huynh, Thi Hong Ngu ;  Université de Liège - ULiège > Doct. sc. (océano. - paysage)
Alvera Azcarate, Aida  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Barth, Alexander  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Beckers, Jean-Marie  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Language :
English
Title :
Characteristics of surface chlorophyll-a concentrations in the South China Sea
Publication date :
25 April 2017
Event name :
EGU General Assembly 2017
Event organizer :
European Geosciences Union
Event place :
Vienna, Austria
Event date :
23–28 April 2017
Audience :
International
Available on ORBi :
since 28 May 2017

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