Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images
A total of 93 monthly global composite remotely sensed ocean color images from the Coastal Zone Color Scanner (CZCS) on board the Nimbus-7 satellite were extracted for the Indian Ocean region (35ºN–55ºS; 30–120ºE) to examine the seasonal variations in phytoplankton pigment concentrations, resulting...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2005-03-01
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| Series: | Ciencias Marinas |
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| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/49 |
| _version_ | 1797279504192765952 |
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| author | Abul BM Alauddin Talukder |
| author_facet | Abul BM Alauddin Talukder |
| author_sort | Abul BM Alauddin Talukder |
| collection | DOAJ |
| description |
A total of 93 monthly global composite remotely sensed ocean color images from the Coastal Zone Color Scanner (CZCS) on board the Nimbus-7 satellite were extracted for the Indian Ocean region (35ºN–55ºS; 30–120ºE) to examine the seasonal variations in phytoplankton pigment concentrations, resulting from large-scale changes in physical oceanographic processes. The CZCS data sets were analyzed with the PC-SEAPAK software, and revealed large phytoplankton blooms in the northwest Arabian Sea and off the Somali coast. The blooms were triggered by wind-driven upwelling during the southwest monsoonal months of August and September. In the northern Arabian Sea, phytoplankton blooms, detected from January to March, appeared to be associated with nutrient enhancement resulting from winter convective mixing. In the Bay of Bengal, higher pigment concentrations were confined to the coastal regions but varied only marginally between seasons both in the coastal and offshore regions. Phytoplankton pigment concentrations were consistently low in the open Indian Ocean. Analysis of pigment concentrations extracted from the monthly-accumulated images revealed that the Arabian Sea sustained a greater biomass of phytoplankton compared with any other region of the Indian Ocean. Overall, the coastal regions of the Indian Ocean are richer in phytoplankton pigment than the open Indian Ocean. The number of images in individual areas was highly variable throughout the region due to varying cloud cover.
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| first_indexed | 2024-03-07T16:26:12Z |
| format | Article |
| id | doaj.art-fcb5c1f99e4d4e96bfc4ebd8c3af9374 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:26:12Z |
| publishDate | 2005-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-fcb5c1f99e4d4e96bfc4ebd8c3af93742024-03-03T18:35:19ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532005-03-0131310.7773/cm.v31i3.49Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series imagesAbul BM Alauddin Talukder0Flinders University of South Australia A total of 93 monthly global composite remotely sensed ocean color images from the Coastal Zone Color Scanner (CZCS) on board the Nimbus-7 satellite were extracted for the Indian Ocean region (35ºN–55ºS; 30–120ºE) to examine the seasonal variations in phytoplankton pigment concentrations, resulting from large-scale changes in physical oceanographic processes. The CZCS data sets were analyzed with the PC-SEAPAK software, and revealed large phytoplankton blooms in the northwest Arabian Sea and off the Somali coast. The blooms were triggered by wind-driven upwelling during the southwest monsoonal months of August and September. In the northern Arabian Sea, phytoplankton blooms, detected from January to March, appeared to be associated with nutrient enhancement resulting from winter convective mixing. In the Bay of Bengal, higher pigment concentrations were confined to the coastal regions but varied only marginally between seasons both in the coastal and offshore regions. Phytoplankton pigment concentrations were consistently low in the open Indian Ocean. Analysis of pigment concentrations extracted from the monthly-accumulated images revealed that the Arabian Sea sustained a greater biomass of phytoplankton compared with any other region of the Indian Ocean. Overall, the coastal regions of the Indian Ocean are richer in phytoplankton pigment than the open Indian Ocean. The number of images in individual areas was highly variable throughout the region due to varying cloud cover. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/49phytoplankton pigment concentrationmonsoonIdian OceanCoastal Zone Color Scanner |
| spellingShingle | Abul BM Alauddin Talukder Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images Ciencias Marinas phytoplankton pigment concentration monsoon Idian Ocean Coastal Zone Color Scanner |
| title | Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images |
| title_full | Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images |
| title_fullStr | Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images |
| title_full_unstemmed | Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images |
| title_short | Temporal and spatial variability of phytoplankton pigment concentrations in the Indian Ocean, derived from the CZCS time series images |
| title_sort | temporal and spatial variability of phytoplankton pigment concentrations in the indian ocean derived from the czcs time series images |
| topic | phytoplankton pigment concentration monsoon Idian Ocean Coastal Zone Color Scanner |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/49 |
| work_keys_str_mv | AT abulbmalauddintalukder temporalandspatialvariabilityofphytoplanktonpigmentconcentrationsintheindianoceanderivedfromtheczcstimeseriesimages |