A global map of rainfed cropland areas (GMRCA) at the end of last millennium using remote sensing

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cg.creator.identifierChandrashekhar Biradar: 0000-0002-9532-9452en_US
cg.creator.identifierAlankar Devage Ranjith: 0000-0003-3745-3022en_US
cg.creator.identifierSarath Gunasinghe: 0000-0002-2044-1685en_US
cg.identifier.doihttps://doi.org/10.1016/j.jag.2008.11.002en_US
cg.issn0303-2434en_US
cg.issue2en_US
cg.journalInternational Journal of Applied Earth Observation and Geoinformationen_US
cg.volume11en_US
dc.contributor.authorBiradar, Chandrashekhar M.en_US
dc.contributor.authorThenkabail, Prasad S.en_US
dc.contributor.authorNoojipady, P.en_US
dc.contributor.authorLi, Yuan Jieen_US
dc.contributor.authorDheeravath, Venkateswarluen_US
dc.contributor.authorTurral, Hughen_US
dc.contributor.authorVelpuri, Naga Manoharen_US
dc.contributor.authorGumma, Murali K.en_US
dc.contributor.authorGangalakunta, O.R.P.en_US
dc.contributor.authorCai, X.L.en_US
dc.contributor.authorXiao, X.en_US
dc.contributor.authorSchull, M.A.en_US
dc.contributor.authorAlankara, Ranjithen_US
dc.contributor.authorGunasinghe, Sarathen_US
dc.contributor.authorMohideen, Sadiren_US
dc.date.accessioned2014-06-13T14:47:58Zen_US
dc.date.available2014-06-13T14:47:58Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/40581en_US
dc.titleA global map of rainfed cropland areas (GMRCA) at the end of last millennium using remote sensingen_US
dcterms.abstractThe overarching goal of this study was to produce a global map of rainfed cropland areas (GMRCA) and calculate country-by-country rainfed area statistics using remote sensing data. A suite of spatial datasets, methods and protocols for mapping GMRCA were described. These consist of: (a) data fusion and composition of multi-resolution time-series mega-file data-cube (MFDC), (b) image segmentation based on precipitation, temperature, and elevation zones, (c) spectral correlation similarity (SCS), (d) protocols for class identification and labeling through uses of SCS R2-values, bi-spectral plots, space-time spiral curves (ST-SCs), rich source of field-plot data, and zoom-in-views of Google Earth (GE), and (e) techniques for resolving mixed classes by decision tree algorithms, and spatial modeling. The outcome was a 9-class GMRCA from which country-by-country rainfed area statistics were computed for the end of the last millennium. The global rainfed cropland area estimate from the GMRCA 9-class map was 1.13 billion hectares (Bha). The total global cropland areas (rainfed plus irrigated) was 1.53 Bha which was close to national statistics compiled by FAOSTAT (1.51 Bha). The accuracies and errors of GMRCA were assessed using field-plot and Google Earth data points. The accuracy varied between 92 and 98% with kappa value of about 0.76, errors of omission of 2-8%, and the errors of commission of 19-36%.en_US
dcterms.accessRightsLimited Accessen_US
dcterms.bibliographicCitationBiradar, Chandrashekhar M.; Thenkabail, Prasad S.; Noojipady, P.; Li, Yuan Jie; Dheeravath, Venkateswarlu; Turral, Hugh; Velpuri, Manohar; Gumma, Murali Krishna; Gangalakunta, O. R. P.; Cai, X. L.; Xiao, X.; Schull, M. A.; Alankara, Ranjith; Gunasinghe, Sarath; Mohideen, Sadir. 2009. A global map of rainfed cropland areas (GMRCA) at the end of last millennium using remote sensing. International Journal of Applied Earth Observation and Geoinformation, 11(2):114-129. doi: 10.1016/j.jag.2008.11.002en_US
dcterms.extentpp. 114-129en_US
dcterms.issued2009-04en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherElsevieren_US
dcterms.subjectmappingen_US
dcterms.subjectremote sensingen_US
dcterms.subjectrainfed farmingen_US
dcterms.subjectirrigated landen_US
dcterms.subjectfarmlanden_US
dcterms.typeJournal Articleen_US

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