c6a4fafd-8317-4588-ab17-ba23c6002217 English UTF-8 Dataset Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Point of contact 2021-03-19 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) The Atmospheric Air Ions and Air-Earth Current Density Measurements at Maitri. 2020-10-05 Creation Document digital Simultaneous measurements of the small, intermediate and large-positive ions and air-earth current density made at Maitri during January ? February 2005 are reported. Variations in small and large positive ion concentrations were almost similar to each other. On the other hand, variations in intermediate positive ion concentrations were independent of the variations in the small/large positive ions and exhibited a diurnal variation which was similar to that in atmospheric temperature on fair weather days with a maximum during the day and minimum during the night hours. No such diurnal variation in intermediate positive ion concentration was observed on cloudy days when variations in them were also similar to those in small/large positive ion concentrations. Scavenging of ions by snowfall and trapping of a-rays from the ground radioactivity by a thin layer of snow on ground, was demonstrated from observations. An opportunity for such a study was provided during our measurements of some atmospheric electric parameters and aerosols during the 24th Indian Scientific Expedition to Antarctica. Completed Dr. Devendraa Siingh National Centre for Polar and Ocean Research (NCPOR) 8322525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Principal investigator Earth Science-Atmosphere Theme Maitri Antarctic Place The Atmospheric Air Ions and Air-Earth Current Density Measurements at Maitri Project English climatologyMeteorologyAtmosphere 20.0 140.0 -90.0 30.0 2004-01-01 2005-12-31 TableDigital unknown unknown Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Distributor http://data.ncaor.gov.in/newhtml