TY - JOUR
T1 - Interannual changes of the Arabian Sea productivity
AU - Piontkovski, Sergey A.
AU - Claereboudt, Michel R.
N1 - Funding Information:
We thank Michael Deadman and Barry Jupp for valuable comments and two anonymous reviewers for their constructive criticism. This data analysis is a contribution of the cooperative research supported by The Research Council Grant No. ORG/EBR/09/ 004 (Sultanate of Oman) to the first author.
PY - 2012/2
Y1 - 2012/2
N2 - Inter-annual changes in temperature and chlorophyll a across the Arabian Sea (subdivided into 61 2-degree regions) were analysed. For each 2-degree region, from appropriate databases, remotely sensed chlorophyll a, sea surface temperature, and wind speed time series were retrieved. Spatial and temporal trend analysis showed physical-biological oscillations with dominant periods of 12 and 6 months (reflecting the seasonality of monsoonal winds) with a globally warming trend, but no overall increase in chlorophyll during the period 1997-2009. Variation coefficients of the inter-annual time series of chlorophyll a implied high variability in western regions of the sea in comparison to eastern regions. The basin-wide maps of chlorophyll distribution did not show the enlargement of the productive area over time and overall, not only did the Arabian Sea not get more productive, but several regions in its eastern basin showed a decline in chlorophyll a concentration.
AB - Inter-annual changes in temperature and chlorophyll a across the Arabian Sea (subdivided into 61 2-degree regions) were analysed. For each 2-degree region, from appropriate databases, remotely sensed chlorophyll a, sea surface temperature, and wind speed time series were retrieved. Spatial and temporal trend analysis showed physical-biological oscillations with dominant periods of 12 and 6 months (reflecting the seasonality of monsoonal winds) with a globally warming trend, but no overall increase in chlorophyll during the period 1997-2009. Variation coefficients of the inter-annual time series of chlorophyll a implied high variability in western regions of the sea in comparison to eastern regions. The basin-wide maps of chlorophyll distribution did not show the enlargement of the productive area over time and overall, not only did the Arabian Sea not get more productive, but several regions in its eastern basin showed a decline in chlorophyll a concentration.
KW - Arabian Sea
KW - chlorophyll a
KW - global changes
KW - marine ecosystems
UR - http://www.scopus.com/inward/record.url?scp=84857182548&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857182548&partnerID=8YFLogxK
U2 - 10.1080/17451000.2011.615325
DO - 10.1080/17451000.2011.615325
M3 - Article
AN - SCOPUS:84857182548
SN - 1745-1000
VL - 8
SP - 189
EP - 194
JO - Marine Biology Research
JF - Marine Biology Research
IS - 2
ER -
