Multidisciplinary studies of the climatic conditions of the present-day arid regions of the northwest Indian region indicate phases of distinct change during the recent post-glacial period. In view of the topical importance of the subject, and the sources of information being scattered throughout multidiscipli-nary research journals, an attempt has been made to summarize and present a coherent picture of the climate of the present-day desert regions of northwest India for the Holocene period. The present-day climatology and physiography of the region is presented as introductory material. The important studies which throw some light on the glacial arid phase, the wet phase, coinciding with the Harappan civilization, and the present-day arid phase are reviewed.
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