Decadal Pattern of Spatial and Temporal Variability of Nitrate Along the Southwest Bay of Bengal Using Remote Sensing Techniques
| Autor: | R. Shanthi, D. Poornima, R. K. Sarangi, A. Saravanakumar, T. Thangaradjou, L. Senthilnathan |
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| Rok vydání: | 2018 |
| Předmět: |
Chlorophyll a
Natural control Geography Planning and Development 0211 other engineering and technologies 02 engineering and technology Atmospheric sciences Monsoon Wind speed chemistry.chemical_compound chemistry Nitrate Chlorophyll BENGAL Earth and Planetary Sciences (miscellaneous) Environmental science Bay 021101 geological & geomatics engineering |
| Zdroj: | Journal of the Indian Society of Remote Sensing. 47:487-495 |
| ISSN: | 0974-3006 0255-660X |
| DOI: | 10.1007/s12524-018-0915-7 |
| Popis: | The seasonal and interannual variability of sea surface nitrate was studied in the southwest Bay of Bengal. MODIS-Aqua-derived SST and chlorophyll data are used to develop seasonal nitrate maps for the period of 2002–2017. Seasonally developed nitrate images were validated for the year 2013 with corresponding in situ datasets, and the validation of this nitrate model provides the statistically significant relationship for postmonsoon (R2 = 0.612), summer (R2 = 0.535), premonsoon (R2 = 0.554) and monsoon (R2 = 0.533) seasons. The seasonal SST, chlorophyll a, nitrate and wind speed images depict the clear seasonal pattern between the seasons without any abrupt increase or decrease in trend observed during all these years. This was also confirmed by the Kruskal–Wallis one-way analysis of variance on ranks with a statistical significance (P = |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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