Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar
International audience Current estimates of Arctic water vapour, obtained using reanalysis, numerical weather predictions, and satellite products may be biased due to the concentration of moisture in the lowest levels, below 2‐3 km. Here we investigate the water vapour content of the atmosphere duri...
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Online Access: | https://insu.hal.science/insu-01998580 https://doi.org/10.1002/qj.3492 |
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ftsorbonneuniv:oai:HAL:insu-01998580v1 2024-09-30T14:30:22+00:00 Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar Totems, Julien Chazette, Patrick Raut, Jean-Christophe 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) Chimie Atmosphérique Expérimentale (CAE) 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 (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)) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2019 https://insu.hal.science/insu-01998580 https://doi.org/10.1002/qj.3492 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/qj.3492 insu-01998580 https://insu.hal.science/insu-01998580 doi:10.1002/qj.3492 ISSN: 0035-9009 EISSN: 1477-870X Quarterly Journal of the Royal Meteorological Society https://insu.hal.science/insu-01998580 Quarterly Journal of the Royal Meteorological Society, 2019, 145 (720), pp.1234-1249. ⟨10.1002/qj.3492⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology info:eu-repo/semantics/article Journal articles 2019 ftsorbonneuniv https://doi.org/10.1002/qj.3492 2024-09-06T00:03:59Z International audience Current estimates of Arctic water vapour, obtained using reanalysis, numerical weather predictions, and satellite products may be biased due to the concentration of moisture in the lowest levels, below 2‐3 km. Here we investigate the water vapour content of the atmosphere during two weeks in May 2016, as estimated with (i) the ECMWF/IFS reanalyses; (ii) WRF simulations at high resolution; and (iii) satellite retrievals from AIRS/Aqua and IASI/MetOp. We compare such estimates to a unique dataset of uninterrupted Raman lidar observations obtained at Hammerfest, Norway (70°N, 24°E), within the framework of the Pollution in the ARCtic System (PARCS) project. Ground‐based lidar profiles were acquired between 150 and 4,000 m altitude, with a vertical and temporal resolution of 15‐200 m and 30 min, respectively. A strong variability of the water vapour field was observed in the lower troposphere in this period, ranging 0.43‐6.35 g kg‐1. Dry air intrusions from the polar vortex, alternating with wet air intrusions associated to lows over the ocean have been revealed, creating strong gradients of water vapour, of the order of 2 g kg‐1 per hour and per km. The satellite retrievals showed a good correlation with the measurements, despite a relatively large dispersion and a slight dry bias of the IASI level 2 product (standard deviation up to 1.5 g kg‐1). The ECMWF/IFS reanalysis and WRF both showed a wet bias below 1 km altitude (+0.4 g kg‐1), coherently with previous comparisons that made use of radiosondes. Article in Journal/Newspaper Arctic Hammerfest HAL Sorbonne Université Arctic Norway Quarterly Journal of the Royal Meteorological Society 145 720 1234 1249 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology Totems, Julien Chazette, Patrick Raut, Jean-Christophe Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
description |
International audience Current estimates of Arctic water vapour, obtained using reanalysis, numerical weather predictions, and satellite products may be biased due to the concentration of moisture in the lowest levels, below 2‐3 km. Here we investigate the water vapour content of the atmosphere during two weeks in May 2016, as estimated with (i) the ECMWF/IFS reanalyses; (ii) WRF simulations at high resolution; and (iii) satellite retrievals from AIRS/Aqua and IASI/MetOp. We compare such estimates to a unique dataset of uninterrupted Raman lidar observations obtained at Hammerfest, Norway (70°N, 24°E), within the framework of the Pollution in the ARCtic System (PARCS) project. Ground‐based lidar profiles were acquired between 150 and 4,000 m altitude, with a vertical and temporal resolution of 15‐200 m and 30 min, respectively. A strong variability of the water vapour field was observed in the lower troposphere in this period, ranging 0.43‐6.35 g kg‐1. Dry air intrusions from the polar vortex, alternating with wet air intrusions associated to lows over the ocean have been revealed, creating strong gradients of water vapour, of the order of 2 g kg‐1 per hour and per km. The satellite retrievals showed a good correlation with the measurements, despite a relatively large dispersion and a slight dry bias of the IASI level 2 product (standard deviation up to 1.5 g kg‐1). The ECMWF/IFS reanalysis and WRF both showed a wet bias below 1 km altitude (+0.4 g kg‐1), coherently with previous comparisons that made use of radiosondes. |
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) Chimie Atmosphérique Expérimentale (CAE) 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 (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)) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Totems, Julien Chazette, Patrick Raut, Jean-Christophe |
author_facet |
Totems, Julien Chazette, Patrick Raut, Jean-Christophe |
author_sort |
Totems, Julien |
title |
Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
title_short |
Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
title_full |
Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
title_fullStr |
Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
title_full_unstemmed |
Accuracy of current Arctic springtime water vapour estimates, assessed by Raman lidar |
title_sort |
accuracy of current arctic springtime water vapour estimates, assessed by raman lidar |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://insu.hal.science/insu-01998580 https://doi.org/10.1002/qj.3492 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Hammerfest |
genre_facet |
Arctic Hammerfest |
op_source |
ISSN: 0035-9009 EISSN: 1477-870X Quarterly Journal of the Royal Meteorological Society https://insu.hal.science/insu-01998580 Quarterly Journal of the Royal Meteorological Society, 2019, 145 (720), pp.1234-1249. ⟨10.1002/qj.3492⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/qj.3492 insu-01998580 https://insu.hal.science/insu-01998580 doi:10.1002/qj.3492 |
op_doi |
https://doi.org/10.1002/qj.3492 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
145 |
container_issue |
720 |
container_start_page |
1234 |
op_container_end_page |
1249 |
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1811635347826671616 |