Rapid assessment o f water eutrophic state in Tien Yen-Ha Coi Bay by estimating Chlorophyll-a concentration using geostatistical interpolations and MODIS data
Eutrophications is a natural process of enrichment o f water by nutrients, how ever in many case is considered as one of the major factors of water pollution affecting coastal ecosystem. Selection and application o f suitable indicator and method to assess sea eutrophicationis utmost...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
ĐHQGHN
2017
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| Subjects: | |
| Online Access: | http://repository.vnu.edu.vn/handle/VNU_123/56589 |
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| Institution: | Vietnam National University, Hanoi |
| Language: | English |
| Summary: | Eutrophications is a natural process of enrichment o f water by nutrients, how ever in
many case is considered as one of the major factors of water pollution affecting coastal ecosystem.
Selection and application o f suitable indicator and method to assess sea eutrophicationis utmost
important. This study aim sat clarifying water euứ ophic state m Tien Yen - Ha Coi B ay using
geostatistical methods o f 40 in situ sites data and auxiliary information from MODIS/Terra image.
Resultant predicted chlorophyll-a concentration distribution map in Tien Yen - Ha Coi Bay
produced b y cokriging and eu ừ o p h ic possibility m ap com puted b y indicator kriging identified
clearly that the b ay is classified as natural euừ ophic waters. B y this study, MODIS offers the
possibility to support auxiliary information for assessment eutrophic state m large water areas.
Cokrigmg and indicator kriging was proved to be effective for rapid environmental quality
assessment and coastal water management. |
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