5e1baa20-5038-4a17-9370-ad8ae1634945 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 2020-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Total Column Water Vapour Concentration Measurement During Sea Voyage and at Maitri During 2002. 2020-09-30 Creation Document digital Measurement of total column water vapour has been made using Micro top sun photometer over at Maitri (70.44? S, 11.45? E), Antarctica The observation taken during 2002 showed that the monthly average concentration varied from 0.67 cm to 0.18 cm. Water vapour concentration found varying significantly with season and time of the day. The water vapour has also been measured during sixteenth and twenty-first Indian Antarctic Scientific Expedition on the way from Goa, India (15.24? N, 73.42? E) to Maitri, Antarctica (70.44? S, 11.45? E) on the ship Polar Bird and Magdalena Oldendroff respectively. It was found that total column water vapour decreased as the ship moved towards the higher latitudes. Water vapour values were also found to be in correlation with corresponding temperature. Water vapour is very important mechanism for heat energy transfer from earths surface to its atmosphere. It strongly contributes to greenhouse effect and considered as a positive feedback. Water vapour feedback acting alone approximately doubles the warming from that it would be for fixed water vapour. Atmospheric water vapour varies considerably with the temperature. The amount of water vapour varies widely throughout the atmosphere and the average content fluctuates about a mean, determined by the other greenhouse gasses, and the nature of the earth land surface. In the upper troposphere and lower stratosphere the radiative and chemical effects of water vapour are large. Completed Dr. Sachin D Ghude 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 Total Column Water Vapour Concentration Measurement During Sea Voyage and at Maitri During 2002 Project English climatologyMeteorologyAtmosphere 20.0 140.0 -90.0 30.0 2001-01-01 2002-12-31 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://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-240055252&userType=user&freeTextValue=Total+Column+Water+Vapour+Concentration+Measurement+During+Sea+Voyage+and+at+Maitri+During+2002.