Trophic State Index (TSI) of Nainital Lake has been determined using secchi disk transparency as well as using Landsat 7 ETM bands. Various interpolation techniques have been tested and the best one has been applied to prepare the water quality images of Nainital Lake.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/analysis-trophic-state-index-nainital-lake-landsat-7-etm-data
[2] http://admin.indiaenvironmentportal.org.in/category/author/k-mishra-0
[3] http://admin.indiaenvironmentportal.org.in/category/author/neha-garg
[4] http://admin.indiaenvironmentportal.org.in/category/journal/journal-indian-society-remote-sensing
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lakes
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nainital-t
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/remote-sensing
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand