1ee1c6fa-0f26-4d1b-ba89-631c0f37ad1d 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 2020-12-14 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Diurnal and Seasonal Variability in Carbon Monoxide at Maitri, Antarctica. 2020-10-01 Creation Document digital Measurement of carbon monoxide (CO) has been carried out from a pristine site, Maitri, (70.77? S, 11.43? E) Antarctica. The obtained time series data for one-year period (January ? December 2004) clearly indicates the occurrence of definite diurnal and seasonal variation of CO concentration in ambient air at Antarctica. Monthly mean CO concentration has generally been observed highest in the months of August (72.62 ? 24 ppbv), September (73.17 ? 28 ppbv) and October (73.25 ? 27 ppbv) and minimum in the months of January (42.77 ? 15.06 ppbv) and February (43.24 ? 14.64 ppbv). Diurnal changes were systematically observed, with higher CO concentration during daytime sunlit period. This CO enhancement in daytime sunlit period could be due to the photochemical production by photolysis of organic matter. To study the diurnal and seasonal pattern of CO, online measurements of CO were carried out at Maitri, Antarctica. Here we report the results obtained from 12 months of regular observation during 2004 period, which shows the existence of diurnal and seasonal pattern of CO in Antarctica. Completed Dr. Pavan S Kulkarni 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 Queen Maud Land Antarctic Place Diurnal and Seasonal Variability in Carbon Monoxide at Maitri Project English climatologyMeteorologyAtmosphere 20.0 140.0 -90.0 30.0 2003-01-01 2004-12-31 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-1014782652&userType=user&freeTextValue=Diurnal+and+Seasonal+Variability+in+Carbon+Monoxide+at+Maitri%2C+Antarctica.