A model is developed to understand the relationship between satellite-derived NDVI and rainfall data in a large tropical catchment. Two Fourier-based modeling techniques with a seasonal component, viz. a seasonal model (SM) and a linear perturbation model (LPM) are tested, and their performance in reproducing the observed NDVI was evaluated. The methodology makes use of 15 years of 10-day composite time series data of rainfall and NDVI, which is estimated from NOAA-AVHRR data, both of which constitute concurrent data from 1982-96. The models are applied to a large catchment system of the Rufiji basin in Tanzania, with a network of 26 stations rainfall record and Thiessen polygon-interpolated spatially averaged NDVI data.
Technology Partners: MimirTech
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/modeling-and-understanding-relationship-between-vegetation-and-rainfall-tropical
[2] http://admin.indiaenvironmentportal.org.in/category/author/ron-t-chaoka
[3] http://admin.indiaenvironmentportal.org.in/category/author/berhanu-f-alemaw
[4] http://admin.indiaenvironmentportal.org.in/category/author/demeke-m-tsige
[5] http://admin.indiaenvironmentportal.org.in/category/journal/journal-spatial-hydrology
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/land-use
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/watershed-development
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/flora
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/remote-sensing
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/geographical-information-systems-gis
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tanzania
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall
