Dr. P.G. Diwakar


Dr. P.G. Diwakar is currently the Director of Earth Observations Applications and Disaster Management Programme Office of ISRO HQ. He Joined Indian Space Research Organisation (ISRO) in 1984. In the past 34 years, held many important positions, such as Head, Regional Remote Sensing Centre, Bangalore (2003-2009); Associate Director, EOS, ISRO HQ, Bangalore (2009-2011); Programme Director, Earth Observation Systems and Disaster Management Support Program, ISRO HQ, Bangalore (2011-2013); Deputy Director, National Remote Sensing Centre (NRSC), ISRO, Hyderabad, (2013 – 2016); Scientific Secretary, ISRO (2016-2018).

He has been recipient of many awards at national and international level, including ISRO Merit Awards, recognition for Innovative use of Space and Geospatial Technologies, Globe Forum award “Globe Sustainability Research Award 2010”, Stockholm, Sweden and World Bank Best Practices Award. He has more than 75 publications in National and International journals.

Abstract of Speech

The Earth Obseration Programme of ISRO has successfully provided images in varieties of spectral bands, meeting National and Global requirements, for more than two decades. Today, the Indian EO constellation provides wide varieties of options for imaging Land, Water, Oceans, Atmosphere and Weather related phenomena. Popular EO Missions, such as, RESOURCESAT, CARTOSAT, OCEANSAT series of satellites provide required inputs from space for natural resources monitoring and management for the National and also addresses specific requirements of many other countries. The planned EO missions, for the future, provides required continuity of data at various spatial, spectral and temporal resolutions on an assured basis. A series of satellites, with instruments that cover specific part of the electromagnetic spectrum, operating from LEO and GSO, have been realized in the past with well-planned continuity. Based on the requirements of the users for applications with regard to land, water, ocean, cartography, atmospheric studies and so on, several newer satellites are realized from time to time. These satellites continue to provide images from space platform to ensure necessary usage in (i) Land/water resources (RESOURCESAT series and RISAT series); (ii) Ocean/Coastal/atmospheric studies (OCEANSAT series, INSAT-VHRR, INSAT-3D & 3DR, Megha-Tropiques and SARAL); and (iii) Large scale mapping applications (CARTOSAT-1 with Stereo imaging; CARTOSAT-2 with 1M imaging; CARTOSAT 2S with sub-meter imaging capabilities). ISRO Plans to continue such satellite constellations, while innovating on newer constellations, to ensure that all requirements for natural resources are met. The presentation provides glimpses of the various EO Satellite missions that are planned in the near future and how the country’s demand for Earth Observation will be met.