Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station
During the 35th Indian Scientific Expedition to Antarctica, measurements of atmospheric carbon dioxide (CO 2 ) were carried out using a Li-Cor CO 2 /H 2 O analyser at Bharati, the Indian Antarctic research station. This study examines the short-term variability of atmospheric CO 2 during the austral...
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ftjpolarres:oai:journals.openacademia.net:article/2690 2023-05-15T14:01:21+02:00 Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station Pathakoti, Mahesh Gaddamidi, Sreenivas Gharai, Biswadip Sudhakaran Syamala, Prijith Venkata Narasimha Rao, Pamaraju Choudhury, Saroj Bandh Venkata Raghavendra, Kaila Dadhwal, Vinay Kumar 2018-03-13 application/pdf application/xml https://polarresearch.net/index.php/polar/article/view/2690 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2690/6143 https://polarresearch.net/index.php/polar/article/view/2690/6144 https://polarresearch.net/index.php/polar/article/view/2690 Polar Research; Vol 37 (2018) 1751-8369 Carbon dioxide Li-Cor CO2/H2O analyser precipitation relative humidity wind speed longrange air-mass transport info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftjpolarres 2021-11-11T19:13:09Z During the 35th Indian Scientific Expedition to Antarctica, measurements of atmospheric carbon dioxide (CO 2 ) were carried out using a Li-Cor CO 2 /H 2 O analyser at Bharati, the Indian Antarctic research station. This study examines the short-term variability of atmospheric CO 2 during the austral summer (January–February) of 2016. An average of 396.25 ± 4.20 ppm was observed during the study period. Meteorological parameters such as relative humidity, precipitation, wind speed, air temperature and atmospheric boundary layer height in conjunction with photosynthetically active radiation, the biological activity indicator which modulates atmospheric CO 2 concentration have been investigated. High wind speed (>20 m s −1 ) combined with precipitation scavenges CO 2 in the atmosphere, resulting in low concentrations at the study site. The lowest CO 2 concentration of 385 ppm coincided with heavy precipitation of 15 mm during study period. Statistical analysis of the data shows that precipitation and relative humidity independently correlated 55% (r = −0.55) and 32% (r = −0.32), respectively, with the variability of CO 2 mixing in the atmosphere at the study site. Atmospheric CO 2 was significantly correlated with precipitation alone with a p value of 0.003. Further, multiple regression analysis was performed to test the significant relation between variability of atmospheric CO 2 and meteorological parameters. Long-range air-mass transport analysis depicted that the majority of the air masses are reaching the study site through the oceanic region. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Research Polar Research (E-Journal) Antarctic Austral Indian |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Carbon dioxide Li-Cor CO2/H2O analyser precipitation relative humidity wind speed longrange air-mass transport |
spellingShingle |
Carbon dioxide Li-Cor CO2/H2O analyser precipitation relative humidity wind speed longrange air-mass transport Pathakoti, Mahesh Gaddamidi, Sreenivas Gharai, Biswadip Sudhakaran Syamala, Prijith Venkata Narasimha Rao, Pamaraju Choudhury, Saroj Bandh Venkata Raghavendra, Kaila Dadhwal, Vinay Kumar Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
topic_facet |
Carbon dioxide Li-Cor CO2/H2O analyser precipitation relative humidity wind speed longrange air-mass transport |
description |
During the 35th Indian Scientific Expedition to Antarctica, measurements of atmospheric carbon dioxide (CO 2 ) were carried out using a Li-Cor CO 2 /H 2 O analyser at Bharati, the Indian Antarctic research station. This study examines the short-term variability of atmospheric CO 2 during the austral summer (January–February) of 2016. An average of 396.25 ± 4.20 ppm was observed during the study period. Meteorological parameters such as relative humidity, precipitation, wind speed, air temperature and atmospheric boundary layer height in conjunction with photosynthetically active radiation, the biological activity indicator which modulates atmospheric CO 2 concentration have been investigated. High wind speed (>20 m s −1 ) combined with precipitation scavenges CO 2 in the atmosphere, resulting in low concentrations at the study site. The lowest CO 2 concentration of 385 ppm coincided with heavy precipitation of 15 mm during study period. Statistical analysis of the data shows that precipitation and relative humidity independently correlated 55% (r = −0.55) and 32% (r = −0.32), respectively, with the variability of CO 2 mixing in the atmosphere at the study site. Atmospheric CO 2 was significantly correlated with precipitation alone with a p value of 0.003. Further, multiple regression analysis was performed to test the significant relation between variability of atmospheric CO 2 and meteorological parameters. Long-range air-mass transport analysis depicted that the majority of the air masses are reaching the study site through the oceanic region. |
format |
Article in Journal/Newspaper |
author |
Pathakoti, Mahesh Gaddamidi, Sreenivas Gharai, Biswadip Sudhakaran Syamala, Prijith Venkata Narasimha Rao, Pamaraju Choudhury, Saroj Bandh Venkata Raghavendra, Kaila Dadhwal, Vinay Kumar |
author_facet |
Pathakoti, Mahesh Gaddamidi, Sreenivas Gharai, Biswadip Sudhakaran Syamala, Prijith Venkata Narasimha Rao, Pamaraju Choudhury, Saroj Bandh Venkata Raghavendra, Kaila Dadhwal, Vinay Kumar |
author_sort |
Pathakoti, Mahesh |
title |
Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
title_short |
Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
title_full |
Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
title_fullStr |
Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
title_full_unstemmed |
Influence of meteorological parameters on atmospheric CO2 at Bharati, the Indian Antarctic research station |
title_sort |
influence of meteorological parameters on atmospheric co2 at bharati, the indian antarctic research station |
publisher |
Norwegian Polar Institute |
publishDate |
2018 |
url |
https://polarresearch.net/index.php/polar/article/view/2690 |
geographic |
Antarctic Austral Indian |
geographic_facet |
Antarctic Austral Indian |
genre |
Antarc* Antarctic Antarctica Polar Research |
genre_facet |
Antarc* Antarctic Antarctica Polar Research |
op_source |
Polar Research; Vol 37 (2018) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2690/6143 https://polarresearch.net/index.php/polar/article/view/2690/6144 https://polarresearch.net/index.php/polar/article/view/2690 |
_version_ |
1766271089744281600 |