Dr. Khalsa’s diverse skills and varied interests have led him to acquire expertise in multiple domains. His early work in boundary layer turbulence and tropical air-sea interaction evolved into an interest in large scale inter-decadal trends in atmospheric structure revealed in satellite sounding records. In 1993 he accepted a position as support scientist for NASA’s Distributed Active Archive Center (DAAC) at National Snow and Ice Data Center (NSIDC). There he performs science evaluation and algorithm support for data products coming from NASA’s Earth observing satellites. He active in the field of Earth Science Informatics and serves as liaison for the Institute of Electrical and Electronics Engineers (IEEE) Geoscience and Remote Sensing Society’s to the Open Geospatial Consortium (OGC). He is on the editorial board of the Springer Journal Earth Science Informatics, a member of the Earth and Space Science Informatics division of the European Geosciences Union and a member of the Earth Science Informatics Technical Committee of the IEEE Geoscience and Remote Sensing Society. In 2014 he accepted a position with the Remote Sensing Department of the Czech Global Change Research Institute to work on applications of satellite and airborne remote sensing data for agriculture, forestry and urban sustainability.