The Effects of the Large Scale Synoptic fields in the High Latitude PBL states.
International audience Polar and sub-polar winters represent outstanding opportunities to study the PBL state in connection to the synoptic meteorological fields. In the high latitudes, the absence of a diurnal cycle combined with the presence of an anticyclone feature promotes surface radiative coo...
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ftunivlcoteopale:oai:HAL:insu-04136916v1 2024-05-19T07:36:23+00:00 The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. Fochesatto, Gilberto Javier Keller, Douglas Dieudonné, Elsa Brett, Natalie Law, Kathy S. Bekki, Slimane Atkinson, David Wellton, Ellsworth Peterson, Eric University of Alaska Fairbanks (UAF) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) Université du Littoral Côte d'Opale (ULCO) 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) University of Victoria Canada (UVIC) NASA Goddard Space Flight Center (GSFC) Vienna, Austria 2023-04-23 https://insu.hal.science/insu-04136916 https://doi.org/10.5194/egusphere-egu23-17118 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-17118 insu-04136916 https://insu.hal.science/insu-04136916 doi:10.5194/egusphere-egu23-17118 EGU General Assembly 2023 https://insu.hal.science/insu-04136916 EGU General Assembly 2023, Apr 2023, Vienna, Austria. pp.EGU23-17118, ⟨10.5194/egusphere-egu23-17118⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/conferenceObject Conference papers 2023 ftunivlcoteopale https://doi.org/10.5194/egusphere-egu23-17118 2024-04-22T16:53:27Z International audience Polar and sub-polar winters represent outstanding opportunities to study the PBL state in connection to the synoptic meteorological fields. In the high latitudes, the absence of a diurnal cycle combined with the presence of an anticyclone feature promotes surface radiative cooling resulting in the formation of a surface based temperature inversion (stably-stratified structure). Under such meteorological conditions, large scale subsidence promotes adiabatic compression (i.e., warming in upper levels) promoting the formation of elevated temperature inversions layers. This multilayered configuration represents a significant challenge for micro-scale/mesoscale modeling and air pollution dispersion as well as for the transport of the local contamination to the global arctic air shed. However, this structure is fragile and can be disrupted by dynamic and radiative effects caused by synoptic variability affecting the PBL state. Thus, significant changes in the PBL state are verified when synoptic situation changes (i.e, warm air advections and more mesoscale frontogenesis).In this contribution, we describe the state of the PBL linked to the synoptic large scale variability using the high resolution thermodynamic profiling datasets from the 2022 ALPACA field experiment in Fairbanks, Alaska. High resolution synoptic scale reanalysis datasets are used to detail dynamic processes coupled to atmospheric dynamics in the PBL state. Conference Object Arctic Alaska Université du Littoral Côte d'Opale portail |
institution |
Open Polar |
collection |
Université du Littoral Côte d'Opale portail |
op_collection_id |
ftunivlcoteopale |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Fochesatto, Gilberto Javier Keller, Douglas Dieudonné, Elsa Brett, Natalie Law, Kathy S. Bekki, Slimane Atkinson, David Wellton, Ellsworth Peterson, Eric The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Polar and sub-polar winters represent outstanding opportunities to study the PBL state in connection to the synoptic meteorological fields. In the high latitudes, the absence of a diurnal cycle combined with the presence of an anticyclone feature promotes surface radiative cooling resulting in the formation of a surface based temperature inversion (stably-stratified structure). Under such meteorological conditions, large scale subsidence promotes adiabatic compression (i.e., warming in upper levels) promoting the formation of elevated temperature inversions layers. This multilayered configuration represents a significant challenge for micro-scale/mesoscale modeling and air pollution dispersion as well as for the transport of the local contamination to the global arctic air shed. However, this structure is fragile and can be disrupted by dynamic and radiative effects caused by synoptic variability affecting the PBL state. Thus, significant changes in the PBL state are verified when synoptic situation changes (i.e, warm air advections and more mesoscale frontogenesis).In this contribution, we describe the state of the PBL linked to the synoptic large scale variability using the high resolution thermodynamic profiling datasets from the 2022 ALPACA field experiment in Fairbanks, Alaska. High resolution synoptic scale reanalysis datasets are used to detail dynamic processes coupled to atmospheric dynamics in the PBL state. |
author2 |
University of Alaska Fairbanks (UAF) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) Université du Littoral Côte d'Opale (ULCO) 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) University of Victoria Canada (UVIC) NASA Goddard Space Flight Center (GSFC) |
format |
Conference Object |
author |
Fochesatto, Gilberto Javier Keller, Douglas Dieudonné, Elsa Brett, Natalie Law, Kathy S. Bekki, Slimane Atkinson, David Wellton, Ellsworth Peterson, Eric |
author_facet |
Fochesatto, Gilberto Javier Keller, Douglas Dieudonné, Elsa Brett, Natalie Law, Kathy S. Bekki, Slimane Atkinson, David Wellton, Ellsworth Peterson, Eric |
author_sort |
Fochesatto, Gilberto Javier |
title |
The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
title_short |
The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
title_full |
The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
title_fullStr |
The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
title_full_unstemmed |
The Effects of the Large Scale Synoptic fields in the High Latitude PBL states. |
title_sort |
effects of the large scale synoptic fields in the high latitude pbl states. |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://insu.hal.science/insu-04136916 https://doi.org/10.5194/egusphere-egu23-17118 |
op_coverage |
Vienna, Austria |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
EGU General Assembly 2023 https://insu.hal.science/insu-04136916 EGU General Assembly 2023, Apr 2023, Vienna, Austria. pp.EGU23-17118, ⟨10.5194/egusphere-egu23-17118⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-17118 insu-04136916 https://insu.hal.science/insu-04136916 doi:10.5194/egusphere-egu23-17118 |
op_doi |
https://doi.org/10.5194/egusphere-egu23-17118 |
_version_ |
1799475492684824576 |