1. Basu S, Ramesh K J and Begum Z N 1999 Medium range prediction of summer monsoon activities over India vis-à-vis their correspondence with observational features; Adv. Atmos. Sci. 16(1) 133–146.
2. Climate Diagnostics Bulletin of India 2008 Government of India, India Meteorological Department.
3. Courtier P and Coauthors 1998 The ECMWF implementation of the three-dimensional variational assimilation (3D-Var). I: Formulation; Quart. J. Roy. Meteorol. Soc. 124 1783–1807.
4. Mazumdar A B, Khole M and Sunitha Devi S 2009 Weather in India. Monsoon Season (June to September, 2008); Mausam 60(3) 379–426.
5. Pailleux J 1990 A global variational assimilation scheme and its application for using TOVS radiances; Preprints, WMO International Symposium on Assimilation of Observations in Meteorology and Oceanography, Clermont-Ferrand, France, WMO, pp. 325–328.