In situ observations and model investigation of the surface radiative budget in the Central Arctic region
International audience In the Arctic, the surface radiative budget is changing rapidly with the loss of sea-ice and snow cover and the associated increase of the frequency of boundary layer clouds. Local scale observations over the high Arctic are rare, especially those covering seasonal transitions...
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ftuniversailles:oai:HAL:insu-03195164v1 2023-11-05T03:31:21+01:00 In situ observations and model investigation of the surface radiative budget in the Central Arctic region Loyer, Lilian Pelon, Jacques Raut, Jean-Christophe Di Biagio, C. Mariage, Vincent 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) Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Online Meeting, United States 2020-12 https://insu.hal.science/insu-03195164 en eng HAL CCSD insu-03195164 https://insu.hal.science/insu-03195164 AGU Fall Meeting https://insu.hal.science/insu-03195164 AGU Fall Meeting, Dec 2020, Online Meeting, United States. pp.C048-02 [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/conferenceObject Conference papers 2020 ftuniversailles 2023-10-10T22:43:12Z International audience In the Arctic, the surface radiative budget is changing rapidly with the loss of sea-ice and snow cover and the associated increase of the frequency of boundary layer clouds. Local scale observations over the high Arctic are rare, especially those covering seasonal transitions.In this study, radiometric observations were estimated from the background noise of lidar observations onboard the Ice-Atmospheres-Ocean Operating System (IAOOS) buoys from 2014 to 2019. Data analysis provides statistical information on the surface radiative budget, cloud optical properties and surface properties over sea-ice in the central Arctic region. This unprecented dataset is also compared to in-situ radiative observations from the N-ICE campaign in 2015 and serves to evaluate re-analyses and model outputs from the mesoscale meteorological Polar-WRF model.Our analysis highlights some biases in the surface albedo and ice and snow fractional cover, which leads to significant discrepancies in the shortwave and longwave irradiances. Our results also underline issues in the representation of cloud geometrical and optical properties that may partially compensate errors in the shortwave and longwave irradiances caused by surface properties biases. Conference Object albedo Arctic Sea ice Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
institution |
Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Loyer, Lilian Pelon, Jacques Raut, Jean-Christophe Di Biagio, C. Mariage, Vincent In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience In the Arctic, the surface radiative budget is changing rapidly with the loss of sea-ice and snow cover and the associated increase of the frequency of boundary layer clouds. Local scale observations over the high Arctic are rare, especially those covering seasonal transitions.In this study, radiometric observations were estimated from the background noise of lidar observations onboard the Ice-Atmospheres-Ocean Operating System (IAOOS) buoys from 2014 to 2019. Data analysis provides statistical information on the surface radiative budget, cloud optical properties and surface properties over sea-ice in the central Arctic region. This unprecented dataset is also compared to in-situ radiative observations from the N-ICE campaign in 2015 and serves to evaluate re-analyses and model outputs from the mesoscale meteorological Polar-WRF model.Our analysis highlights some biases in the surface albedo and ice and snow fractional cover, which leads to significant discrepancies in the shortwave and longwave irradiances. Our results also underline issues in the representation of cloud geometrical and optical properties that may partially compensate errors in the shortwave and longwave irradiances caused by surface properties biases. |
author2 |
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) Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Conference Object |
author |
Loyer, Lilian Pelon, Jacques Raut, Jean-Christophe Di Biagio, C. Mariage, Vincent |
author_facet |
Loyer, Lilian Pelon, Jacques Raut, Jean-Christophe Di Biagio, C. Mariage, Vincent |
author_sort |
Loyer, Lilian |
title |
In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
title_short |
In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
title_full |
In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
title_fullStr |
In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
title_full_unstemmed |
In situ observations and model investigation of the surface radiative budget in the Central Arctic region |
title_sort |
in situ observations and model investigation of the surface radiative budget in the central arctic region |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://insu.hal.science/insu-03195164 |
op_coverage |
Online Meeting, United States |
genre |
albedo Arctic Sea ice |
genre_facet |
albedo Arctic Sea ice |
op_source |
AGU Fall Meeting https://insu.hal.science/insu-03195164 AGU Fall Meeting, Dec 2020, Online Meeting, United States. pp.C048-02 |
op_relation |
insu-03195164 https://insu.hal.science/insu-03195164 |
_version_ |
1781708055670423552 |