Continuous monitoring of the atmospheric composition in southern Greenland
South Greenland is a key region placed under Arctic and Northern Atlantic influences, whichis poorly documented in terms of atmospheric monitoring. The aim of my thesis is to conductand use the first regional atmospheric observations of CO2, O2, CH4 and isotopic compositionof water vapour and precip...
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ftinsu:oai:HAL:tel-01254787v1 2024-04-28T08:12:04+00:00 Continuous monitoring of the atmospheric composition in southern Greenland Observations continues de la composition atmosphérique au sud Groenland Bonne, Jean-Louis Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Université de Versailles-Saint Quentin en Yvelines Valérie Masson-Delmotte Marc Delmotte 2015-04-27 https://theses.hal.science/tel-01254787 https://theses.hal.science/tel-01254787/document https://theses.hal.science/tel-01254787/file/these-doctorat-jlbonne-2cnd-depot_soutenue-20150427.pdf fr fre HAL CCSD NNT: 2015VERS008V tel-01254787 https://theses.hal.science/tel-01254787 https://theses.hal.science/tel-01254787/document https://theses.hal.science/tel-01254787/file/these-doctorat-jlbonne-2cnd-depot_soutenue-20150427.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-01254787 Climatologie. Université de Versailles-Saint Quentin en Yvelines, 2015. Français. ⟨NNT : 2015VERS008V⟩ Greenland Continuous atmospheric observations Carbon cycle CO2 O2 APO CH4 Hydrologic cycle Water stables isotopes Groenland Observations atmosphériques continues Cycle du carbonne Cycle hydrologique Isotopes stables de l’eau [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/doctoralThesis Theses 2015 ftinsu 2024-04-05T00:49:39Z South Greenland is a key region placed under Arctic and Northern Atlantic influences, whichis poorly documented in terms of atmospheric monitoring. The aim of my thesis is to conductand use the first regional atmospheric observations of CO2, O2, CH4 and isotopic compositionof water vapour and precipitation performed in Ivittuut, a coastal site in south-west Greenland.Which information can we infer from these atmospheric observations, in terms of localatmospheric processes and large scale atmospheric transport variations? Can we use these observationsto document the surface-air exchanges of these compounds, which represent an importantpart of the water and carbon biogeochemical cycles?After validating the observations regarding international precision recommandations, I havebeen able to analyse the variabilities at different time scales, resulting from different specificprocesses. This highlighted the fact the atmospheric composition of our site is weakly influencedby local processes, either for local greenhouse gases sources or small scale atmosphericvariations affecting water vapour isotopic composition. This facilitates the interpretation of ourobservations in terms of large scale atmospheric transport signals.To better understand the observed variations, I related our data series with other observationsoriginating from different sites, and with outputs from different atmospheric models. Ihave first witnessed the links between variations of atmospheric composition and large synopticscale atmospheric transport changes. Then, I have identified the spatial representativity of ourobservations and contributed to the evaluation of atmospheric models. The case study of astrong heat wave covering Greenland during summer 2012 allowed me to study the transport ofwater vapour within an air mass between different stations. It allowed me to provide the firstexperimental observation of deuterium excess conservation during atmospheric transport.Finally, combining observations and atmospheric simulations, I have documented ... Doctoral or Postdoctoral Thesis Arctic Greenland Groenland Ivittuut Institut national des sciences de l'Univers: HAL-INSU |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
French |
topic |
Greenland Continuous atmospheric observations Carbon cycle CO2 O2 APO CH4 Hydrologic cycle Water stables isotopes Groenland Observations atmosphériques continues Cycle du carbonne Cycle hydrologique Isotopes stables de l’eau [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Greenland Continuous atmospheric observations Carbon cycle CO2 O2 APO CH4 Hydrologic cycle Water stables isotopes Groenland Observations atmosphériques continues Cycle du carbonne Cycle hydrologique Isotopes stables de l’eau [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Bonne, Jean-Louis Continuous monitoring of the atmospheric composition in southern Greenland |
topic_facet |
Greenland Continuous atmospheric observations Carbon cycle CO2 O2 APO CH4 Hydrologic cycle Water stables isotopes Groenland Observations atmosphériques continues Cycle du carbonne Cycle hydrologique Isotopes stables de l’eau [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
South Greenland is a key region placed under Arctic and Northern Atlantic influences, whichis poorly documented in terms of atmospheric monitoring. The aim of my thesis is to conductand use the first regional atmospheric observations of CO2, O2, CH4 and isotopic compositionof water vapour and precipitation performed in Ivittuut, a coastal site in south-west Greenland.Which information can we infer from these atmospheric observations, in terms of localatmospheric processes and large scale atmospheric transport variations? Can we use these observationsto document the surface-air exchanges of these compounds, which represent an importantpart of the water and carbon biogeochemical cycles?After validating the observations regarding international precision recommandations, I havebeen able to analyse the variabilities at different time scales, resulting from different specificprocesses. This highlighted the fact the atmospheric composition of our site is weakly influencedby local processes, either for local greenhouse gases sources or small scale atmosphericvariations affecting water vapour isotopic composition. This facilitates the interpretation of ourobservations in terms of large scale atmospheric transport signals.To better understand the observed variations, I related our data series with other observationsoriginating from different sites, and with outputs from different atmospheric models. Ihave first witnessed the links between variations of atmospheric composition and large synopticscale atmospheric transport changes. Then, I have identified the spatial representativity of ourobservations and contributed to the evaluation of atmospheric models. The case study of astrong heat wave covering Greenland during summer 2012 allowed me to study the transport ofwater vapour within an air mass between different stations. It allowed me to provide the firstexperimental observation of deuterium excess conservation during atmospheric transport.Finally, combining observations and atmospheric simulations, I have documented ... |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Université de Versailles-Saint Quentin en Yvelines Valérie Masson-Delmotte Marc Delmotte |
format |
Doctoral or Postdoctoral Thesis |
author |
Bonne, Jean-Louis |
author_facet |
Bonne, Jean-Louis |
author_sort |
Bonne, Jean-Louis |
title |
Continuous monitoring of the atmospheric composition in southern Greenland |
title_short |
Continuous monitoring of the atmospheric composition in southern Greenland |
title_full |
Continuous monitoring of the atmospheric composition in southern Greenland |
title_fullStr |
Continuous monitoring of the atmospheric composition in southern Greenland |
title_full_unstemmed |
Continuous monitoring of the atmospheric composition in southern Greenland |
title_sort |
continuous monitoring of the atmospheric composition in southern greenland |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://theses.hal.science/tel-01254787 https://theses.hal.science/tel-01254787/document https://theses.hal.science/tel-01254787/file/these-doctorat-jlbonne-2cnd-depot_soutenue-20150427.pdf |
genre |
Arctic Greenland Groenland Ivittuut |
genre_facet |
Arctic Greenland Groenland Ivittuut |
op_source |
https://theses.hal.science/tel-01254787 Climatologie. Université de Versailles-Saint Quentin en Yvelines, 2015. Français. ⟨NNT : 2015VERS008V⟩ |
op_relation |
NNT: 2015VERS008V tel-01254787 https://theses.hal.science/tel-01254787 https://theses.hal.science/tel-01254787/document https://theses.hal.science/tel-01254787/file/these-doctorat-jlbonne-2cnd-depot_soutenue-20150427.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1797579142679494656 |