Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing
The Arctic region is known to be very sensitive to climate change. Clouds and in particular mixed phase clouds (MPC) remain one of the greatest sources of uncertainties in the modeling of the Arctic response to climate change due to an inaccurate representation of their variability and their quantif...
Published in: | Atmospheric Chemistry and Physics |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://doi.org/10.5194/acp-15-2445-2015 https://hal.archives-ouvertes.fr/hal-01064206/file/acp-15-2445-2015.pdf https://hal.archives-ouvertes.fr/hal-01064206 |
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fttriple:oai:gotriple.eu:10670/1.jtlw1c 2023-05-15T14:36:50+02:00 Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing Mioche, Guillaume Jourdan, O. Ceccaldi, Marie Delanoë, Julien Laboratoire de météorologie physique (LaMP) Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS) SPACE - 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) 2015-01-01 https://doi.org/10.5194/acp-15-2445-2015 https://hal.archives-ouvertes.fr/hal-01064206/file/acp-15-2445-2015.pdf https://hal.archives-ouvertes.fr/hal-01064206 en eng HAL CCSD European Geosciences Union hal-01064206 doi:10.5194/acp-15-2445-2015 10670/1.jtlw1c https://hal.archives-ouvertes.fr/hal-01064206/file/acp-15-2445-2015.pdf https://hal.archives-ouvertes.fr/hal-01064206 Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics Atmospheric Chemistry and Physics, European Geosciences Union, 2015, 15, pp.2445-2461. ⟨10.5194/acp-15-2445-2015⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2015 fttriple https://doi.org/10.5194/acp-15-2445-2015 2023-01-22T17:00:49Z The Arctic region is known to be very sensitive to climate change. Clouds and in particular mixed phase clouds (MPC) remain one of the greatest sources of uncertainties in the modeling of the Arctic response to climate change due to an inaccurate representation of their variability and their quantification. In this study, we present a characterization of the vertical, spatial and seasonal variability of Arctic clouds and MPC over the whole Arctic region based on satellite active remote sensing observations. MPC properties in the region of Svalbard archipelago (78° N, 15° E) are also investigated. The occurrence frequency of clouds and MPC are determined from CALIPSO/CLOUDSAT measurements processed with the DARDAR retrieval algorithm which allows for a reliable cloud thermodynamic phase classification (warm liquid, supercooled liquid, ice, mixing of ice and supercooled liquid). Significant differences are observed between MPC variability over the whole Arctic region and over the Svalbard region. Results show that MPC are ubiquitous all along the year, with a minimum occurrence of 30% in winter and 50% during the rest of the year, in average over the whole Arctic. Over the Svalbard region, MPC occurrence is more constant with time with larger values (55%) compared to the average observed in the Arctic. MPC are especially located at low altitudes, below 3000 m, where their frequency of occurrence reaches 90%, in particular during winter, spring and autumn. Moreover, results highlight that MPC statistically prevail over sea. The temporal and spatial distribution of MPC over the Svalbard region seems to be linked to the contribution of moister air and warmer water from the North Atlantic Ocean which contribute to the initiation of the liquid water phase. Over the whole Arctic, and particularly in western regions, the increase of MPC occurrence from spring to autumn could be connected to the sea ice melting. During this period, the open water transports a part of the warm water from the Svalbard region to the rest of ... Article in Journal/Newspaper Arctic Climate change North Atlantic Sea ice Svalbard Unknown Arctic Svalbard Svalbard Archipelago Atmospheric Chemistry and Physics 15 5 2445 2461 |
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language |
English |
topic |
geo envir |
spellingShingle |
geo envir Mioche, Guillaume Jourdan, O. Ceccaldi, Marie Delanoë, Julien Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
topic_facet |
geo envir |
description |
The Arctic region is known to be very sensitive to climate change. Clouds and in particular mixed phase clouds (MPC) remain one of the greatest sources of uncertainties in the modeling of the Arctic response to climate change due to an inaccurate representation of their variability and their quantification. In this study, we present a characterization of the vertical, spatial and seasonal variability of Arctic clouds and MPC over the whole Arctic region based on satellite active remote sensing observations. MPC properties in the region of Svalbard archipelago (78° N, 15° E) are also investigated. The occurrence frequency of clouds and MPC are determined from CALIPSO/CLOUDSAT measurements processed with the DARDAR retrieval algorithm which allows for a reliable cloud thermodynamic phase classification (warm liquid, supercooled liquid, ice, mixing of ice and supercooled liquid). Significant differences are observed between MPC variability over the whole Arctic region and over the Svalbard region. Results show that MPC are ubiquitous all along the year, with a minimum occurrence of 30% in winter and 50% during the rest of the year, in average over the whole Arctic. Over the Svalbard region, MPC occurrence is more constant with time with larger values (55%) compared to the average observed in the Arctic. MPC are especially located at low altitudes, below 3000 m, where their frequency of occurrence reaches 90%, in particular during winter, spring and autumn. Moreover, results highlight that MPC statistically prevail over sea. The temporal and spatial distribution of MPC over the Svalbard region seems to be linked to the contribution of moister air and warmer water from the North Atlantic Ocean which contribute to the initiation of the liquid water phase. Over the whole Arctic, and particularly in western regions, the increase of MPC occurrence from spring to autumn could be connected to the sea ice melting. During this period, the open water transports a part of the warm water from the Svalbard region to the rest of ... |
author2 |
Laboratoire de météorologie physique (LaMP) Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS) SPACE - 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 |
Article in Journal/Newspaper |
author |
Mioche, Guillaume Jourdan, O. Ceccaldi, Marie Delanoë, Julien |
author_facet |
Mioche, Guillaume Jourdan, O. Ceccaldi, Marie Delanoë, Julien |
author_sort |
Mioche, Guillaume |
title |
Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
title_short |
Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
title_full |
Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
title_fullStr |
Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
title_full_unstemmed |
Variability of the mixed-phase clouds in the Arctic with a focus on the Svalbard region: a study based on spaceborne active remote sensing |
title_sort |
variability of the mixed-phase clouds in the arctic with a focus on the svalbard region: a study based on spaceborne active remote sensing |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-2445-2015 https://hal.archives-ouvertes.fr/hal-01064206/file/acp-15-2445-2015.pdf https://hal.archives-ouvertes.fr/hal-01064206 |
geographic |
Arctic Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Svalbard Svalbard Archipelago |
genre |
Arctic Climate change North Atlantic Sea ice Svalbard |
genre_facet |
Arctic Climate change North Atlantic Sea ice Svalbard |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics Atmospheric Chemistry and Physics, European Geosciences Union, 2015, 15, pp.2445-2461. ⟨10.5194/acp-15-2445-2015⟩ |
op_relation |
hal-01064206 doi:10.5194/acp-15-2445-2015 10670/1.jtlw1c https://hal.archives-ouvertes.fr/hal-01064206/file/acp-15-2445-2015.pdf https://hal.archives-ouvertes.fr/hal-01064206 |
op_doi |
https://doi.org/10.5194/acp-15-2445-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
5 |
container_start_page |
2445 |
op_container_end_page |
2461 |
_version_ |
1766309365736800256 |