Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses
International audience Original summertime time series of water vapor profiles in the polar atmosphere have been obtained by a Raman lidar system during the Pollution in the ARCtic System (PARCS) campaign held May 12 th to 27 th , 2016 in Hammerfest, Norway (70°40’N) as part of the French Arctic ini...
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ftinsu:oai:HAL:insu-01425713v1 2024-04-28T08:07:58+00:00 Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses Totems, Julien Chazette, Patrick Shang, Xiaoxia Raut, Jean-Christophe de Cacqueray, Victor 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) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) San Francisco, United States 2016-12-12 https://insu.hal.science/insu-01425713 en eng HAL CCSD insu-01425713 https://insu.hal.science/insu-01425713 AGU Fall Meeting 2016 https://insu.hal.science/insu-01425713 AGU Fall Meeting 2016, Dec 2016, San Francisco, United States. pp.A23K-0397 [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/conferenceObject Conference poster 2016 ftinsu 2024-04-05T00:47:53Z International audience Original summertime time series of water vapor profiles in the polar atmosphere have been obtained by a Raman lidar system during the Pollution in the ARCtic System (PARCS) campaign held May 12 th to 27 th , 2016 in Hammerfest, Norway (70°40’N) as part of the French Arctic initiative. Such vertical profiles are of paramount importance to improve our knowledge of the Arctic atmospheric evolution under anthropic pressure for both climate and air quality purposes. Indeed, in this pristine region, atmospheric moisture plays several key roles in the climate and atmospheric chemistry: i) on sea ice melt onset, ii) on multiphasic chemistry via the interactions between water vapor, aerosols and cloud cycles, and iii) on photolysis rates influencing the tropospheric oxidation capabilities during summer. Moreover, ground-based lidar measurements appear as very relevant because the ongoing positive moisture anomaly observed during summertime due to global warming is concentrated at low altitude. It presents strong spatiotemporal gradients typical of the region, which are not well resolved by satellite observations or weather models.The ground/air measurement strategy for Arctic pollution in PARCS, including the Water Vapor & Aerosol LIdar (WALI) as well as an airborne Raman system and sonde, will be described. We will present lidar measurements of the water vapor mixing ratio performed by WALI embedded in the mobile atmospheric station of our laboratory. The vertical profiles of water vapor are obtained day-round with an uncertainty below 10% for a vertical resolution of 100 m and a temporal resolution of 30 minutes, up to 2500m during daytime. The precision of the lidar calibration via the airborne meteorological sonde has been evaluated and will be discussed. Lidar-derived water vapor profiles confirm the strong spatio temporal variability highlighted by previous studies, in terms of vertical gradients and sudden moist fronts. They will be compared to profiles of reanalyses used in mesoscale ... Conference Object Arctic Arctic pollution Global warming Hammerfest Sea ice 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 |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Totems, Julien Chazette, Patrick Shang, Xiaoxia Raut, Jean-Christophe de Cacqueray, Victor Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Original summertime time series of water vapor profiles in the polar atmosphere have been obtained by a Raman lidar system during the Pollution in the ARCtic System (PARCS) campaign held May 12 th to 27 th , 2016 in Hammerfest, Norway (70°40’N) as part of the French Arctic initiative. Such vertical profiles are of paramount importance to improve our knowledge of the Arctic atmospheric evolution under anthropic pressure for both climate and air quality purposes. Indeed, in this pristine region, atmospheric moisture plays several key roles in the climate and atmospheric chemistry: i) on sea ice melt onset, ii) on multiphasic chemistry via the interactions between water vapor, aerosols and cloud cycles, and iii) on photolysis rates influencing the tropospheric oxidation capabilities during summer. Moreover, ground-based lidar measurements appear as very relevant because the ongoing positive moisture anomaly observed during summertime due to global warming is concentrated at low altitude. It presents strong spatiotemporal gradients typical of the region, which are not well resolved by satellite observations or weather models.The ground/air measurement strategy for Arctic pollution in PARCS, including the Water Vapor & Aerosol LIdar (WALI) as well as an airborne Raman system and sonde, will be described. We will present lidar measurements of the water vapor mixing ratio performed by WALI embedded in the mobile atmospheric station of our laboratory. The vertical profiles of water vapor are obtained day-round with an uncertainty below 10% for a vertical resolution of 100 m and a temporal resolution of 30 minutes, up to 2500m during daytime. The precision of the lidar calibration via the airborne meteorological sonde has been evaluated and will be discussed. Lidar-derived water vapor profiles confirm the strong spatio temporal variability highlighted by previous studies, in terms of vertical gradients and sudden moist fronts. They will be compared to profiles of reanalyses used in mesoscale ... |
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) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Totems, Julien Chazette, Patrick Shang, Xiaoxia Raut, Jean-Christophe de Cacqueray, Victor |
author_facet |
Totems, Julien Chazette, Patrick Shang, Xiaoxia Raut, Jean-Christophe de Cacqueray, Victor |
author_sort |
Totems, Julien |
title |
Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
title_short |
Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
title_full |
Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
title_fullStr |
Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
title_full_unstemmed |
Summertime tropospheric water vapor measurements above the Arctic Circle by Raman lidar and comparison to weather model reanalyses |
title_sort |
summertime tropospheric water vapor measurements above the arctic circle by raman lidar and comparison to weather model reanalyses |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://insu.hal.science/insu-01425713 |
op_coverage |
San Francisco, United States |
genre |
Arctic Arctic pollution Global warming Hammerfest Sea ice |
genre_facet |
Arctic Arctic pollution Global warming Hammerfest Sea ice |
op_source |
AGU Fall Meeting 2016 https://insu.hal.science/insu-01425713 AGU Fall Meeting 2016, Dec 2016, San Francisco, United States. pp.A23K-0397 |
op_relation |
insu-01425713 https://insu.hal.science/insu-01425713 |
_version_ |
1797576900475879424 |