The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results
The need for climate change prediction has focused attention on the Surface Mass Balance (SMB) of the Antarctic continent and on how it influences the sea level. The SMB of the Antarctic plateau is governed by the equilibrium between precipitation and ablation processes such as sublimation and wind-...
Published in: | Climate Dynamics |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Terra Antartica Publication
2008
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Subjects: | |
Online Access: | http://hdl.handle.net/2122/4046 |
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ftingv:oai:www.earth-prints.org:2122/4046 |
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Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
language |
English |
topic |
Sublimation processes Snow accumulation Mass balance 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance |
spellingShingle |
Sublimation processes Snow accumulation Mass balance 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance Scarchilli, C. Frezzotti, M. Didonfrancesco, G. Valt, M. Urbini, S. De Silvestri, L. Dolci, S. Iaccarino, A. Grigioni, P. The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
topic_facet |
Sublimation processes Snow accumulation Mass balance 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance |
description |
The need for climate change prediction has focused attention on the Surface Mass Balance (SMB) of the Antarctic continent and on how it influences the sea level. The SMB of the Antarctic plateau is governed by the equilibrium between precipitation and ablation processes such as sublimation and wind-borne snow redistribution. At scales of hundreds of kilometres snowfall variability dominates the snow accumulation process (Dery and Yau, 2002); at smaller scales, postdepositional process such as wind-borne redistribution, surface sublimation and snowdrift sublimation becomes more important. In recent years the sublimation phenomenon has received much attention from the glacial-meteorological community, and some theoretical studies have tried to model it (Bintanja, 1998; Dery & Yau, 2001b; Frezzotti, 2004). There are two different types of sublimation: surface sublimation and blowing snow sublimation. Surface sublimation is mostly determined by the continual exchange of water between the air (in the vapour phase) and the snow pack (in the solid phase) due to solar irradiance. Blowing snow sublimation is possibly the more effective of the two sublimation processes. It occurs when snow particles at the surface are blown by winds exceeding a certain threshold value. Particles suspended in the sub saturated Atmospheric Boundary Layer (ABL) sublimate at a relatively fast rate, cooling air mass transported by the wind and increasing the local atmospheric moisture content. When the first few meters of the ABL are completely saturated, the process is dumped. It takes a long time to meet this condition because katabatic winds transport saturated air masses to the coast, thereby reactivating sublimation. The role of sublimation in snow accumulation and its high variability at local scales are not fully understood due to the few available measurements in Antarctica. Further study and field experiments are required. Published 47-50 3.8. Geofisica per l'ambiente N/A or not JCR open |
author2 |
Scarchilli, C.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Frezzotti, M.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Didonfrancesco, G.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Valt, M.; A.R.P.A.V., Centro Valanghe di Arabba, Livinallongo del Col di Lana (Belluno) - Italy Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia De Silvestri, L.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Dolci, S.; Consiglio Nazionale delle Ricerche, Rome - Italy Iaccarino, A.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Grigioni, P.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy A.R.P.A.V., Centro Valanghe di Arabba, Livinallongo del Col di Lana (Belluno) - Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Consiglio Nazionale delle Ricerche, Rome - Italy |
format |
Article in Journal/Newspaper |
author |
Scarchilli, C. Frezzotti, M. Didonfrancesco, G. Valt, M. Urbini, S. De Silvestri, L. Dolci, S. Iaccarino, A. Grigioni, P. |
author_facet |
Scarchilli, C. Frezzotti, M. Didonfrancesco, G. Valt, M. Urbini, S. De Silvestri, L. Dolci, S. Iaccarino, A. Grigioni, P. |
author_sort |
Scarchilli, C. |
title |
The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
title_short |
The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
title_full |
The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
title_fullStr |
The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
title_full_unstemmed |
The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results |
title_sort |
impact of precipitation and sublimation processes on snow accumulation: preliminary results |
publisher |
Terra Antartica Publication |
publishDate |
2008 |
url |
http://hdl.handle.net/2122/4046 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic |
genre_facet |
Antarc* Antarctic Antarctica Arctic |
op_relation |
Terra Antartica Reports / 14 (2008) Bintanja R., 1998. The contribution of snowdrift sublimation to the surface mass balance of Antarctica, Ann. Glaciol., 27, 251–259. Bintanja R., 2000. The surface heat budget of Antarctic snow and blue ice: interpretation of temporal and spatial variability. J. Geophys. Res., 105, 24387-24407. Bintanja R., 2000. Snowdrift suspension and atmospheric turbulence. Part I: Theoretical background and model description. Boundary-Layer Meteorol., 95, 343-368. Bintanja R. & C.H. Reijmer, 2001, A simple parametrization for snowdrift sublimation over Antarctic snow surfaces. J. Geophys. Res., 106, 731739-31748. Dery S.J. & M.K. Yau, 2001a. Simulation of blowing snow in the Canadian Arctic using a double-moment model. Boundary-Layer Meteorol., 99, 297– 316. Dery S.J. & M.K. Yau, 2001b. Simulation of an Arctic ground blizzard using a coupled blowing snowatmosphere model. J. Hydrometeorol., 2, 579–598. Frezzotti M., M. Pourchet, O. Flora, S. Gandolfi, M. Gay, S. Urbini, C.Vincent, S. Becagli, R. Gragnani, M. Proposito, M. Severi, R. Traversi, R. Udisti & Fily M., 2004. New estimations of precipitation and surface sublimation in East Antarctica from snow accumulation measurements. Climate Dynamics, 23(7-8), 803-813, DOI:10.1007/s00382-004-0462-5. Van den Broeke M.R., 1997. Spatial and temporal variation of sublimation on Antarctica: Results of a high-resolution general circulation model. J. Geophys. Res., 102, 29, 765– 29, 777. Van Has, D., Van den Broeke, M.R., Reijmer C. & Van de Wal R., 2005. The summer surface energy balance of the hight Antarctic plateau’, Boundary-Layer Meteorol., 115, 289-317. http://hdl.handle.net/2122/4046 |
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Climate Dynamics |
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23 |
container_issue |
7-8 |
container_start_page |
803 |
op_container_end_page |
813 |
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ftingv:oai:www.earth-prints.org:2122/4046 2023-05-15T13:51:39+02:00 The Impact of Precipitation and Sublimation Processes on Snow Accumulation: Preliminary Results Scarchilli, C. Frezzotti, M. Didonfrancesco, G. Valt, M. Urbini, S. De Silvestri, L. Dolci, S. Iaccarino, A. Grigioni, P. Scarchilli, C.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Frezzotti, M.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Didonfrancesco, G.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Valt, M.; A.R.P.A.V., Centro Valanghe di Arabba, Livinallongo del Col di Lana (Belluno) - Italy Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia De Silvestri, L.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Dolci, S.; Consiglio Nazionale delle Ricerche, Rome - Italy Iaccarino, A.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Grigioni, P.; Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy Ente per le Nuove Tecnologie, l’Energia e l’Ambiente, ‘Progetto Speciale Clima Globale’, Rome - Italy A.R.P.A.V., Centro Valanghe di Arabba, Livinallongo del Col di Lana (Belluno) - Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Consiglio Nazionale delle Ricerche, Rome - Italy 2008-07 http://hdl.handle.net/2122/4046 en eng Terra Antartica Publication Terra Antartica Reports / 14 (2008) Bintanja R., 1998. The contribution of snowdrift sublimation to the surface mass balance of Antarctica, Ann. Glaciol., 27, 251–259. Bintanja R., 2000. The surface heat budget of Antarctic snow and blue ice: interpretation of temporal and spatial variability. J. Geophys. Res., 105, 24387-24407. Bintanja R., 2000. Snowdrift suspension and atmospheric turbulence. Part I: Theoretical background and model description. Boundary-Layer Meteorol., 95, 343-368. Bintanja R. & C.H. Reijmer, 2001, A simple parametrization for snowdrift sublimation over Antarctic snow surfaces. J. Geophys. Res., 106, 731739-31748. Dery S.J. & M.K. Yau, 2001a. Simulation of blowing snow in the Canadian Arctic using a double-moment model. Boundary-Layer Meteorol., 99, 297– 316. Dery S.J. & M.K. Yau, 2001b. Simulation of an Arctic ground blizzard using a coupled blowing snowatmosphere model. J. Hydrometeorol., 2, 579–598. Frezzotti M., M. Pourchet, O. Flora, S. Gandolfi, M. Gay, S. Urbini, C.Vincent, S. Becagli, R. Gragnani, M. Proposito, M. Severi, R. Traversi, R. Udisti & Fily M., 2004. New estimations of precipitation and surface sublimation in East Antarctica from snow accumulation measurements. Climate Dynamics, 23(7-8), 803-813, DOI:10.1007/s00382-004-0462-5. Van den Broeke M.R., 1997. Spatial and temporal variation of sublimation on Antarctica: Results of a high-resolution general circulation model. J. Geophys. Res., 102, 29, 765– 29, 777. Van Has, D., Van den Broeke, M.R., Reijmer C. & Van de Wal R., 2005. The summer surface energy balance of the hight Antarctic plateau’, Boundary-Layer Meteorol., 115, 289-317. http://hdl.handle.net/2122/4046 open Sublimation processes Snow accumulation Mass balance 02. Cryosphere::02.02. Glaciers::02.02.02. Cryosphere/atmosphere Interaction 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance article 2008 ftingv 2022-07-29T06:04:57Z The need for climate change prediction has focused attention on the Surface Mass Balance (SMB) of the Antarctic continent and on how it influences the sea level. The SMB of the Antarctic plateau is governed by the equilibrium between precipitation and ablation processes such as sublimation and wind-borne snow redistribution. At scales of hundreds of kilometres snowfall variability dominates the snow accumulation process (Dery and Yau, 2002); at smaller scales, postdepositional process such as wind-borne redistribution, surface sublimation and snowdrift sublimation becomes more important. In recent years the sublimation phenomenon has received much attention from the glacial-meteorological community, and some theoretical studies have tried to model it (Bintanja, 1998; Dery & Yau, 2001b; Frezzotti, 2004). There are two different types of sublimation: surface sublimation and blowing snow sublimation. Surface sublimation is mostly determined by the continual exchange of water between the air (in the vapour phase) and the snow pack (in the solid phase) due to solar irradiance. Blowing snow sublimation is possibly the more effective of the two sublimation processes. It occurs when snow particles at the surface are blown by winds exceeding a certain threshold value. Particles suspended in the sub saturated Atmospheric Boundary Layer (ABL) sublimate at a relatively fast rate, cooling air mass transported by the wind and increasing the local atmospheric moisture content. When the first few meters of the ABL are completely saturated, the process is dumped. It takes a long time to meet this condition because katabatic winds transport saturated air masses to the coast, thereby reactivating sublimation. The role of sublimation in snow accumulation and its high variability at local scales are not fully understood due to the few available measurements in Antarctica. Further study and field experiments are required. Published 47-50 3.8. Geofisica per l'ambiente N/A or not JCR open Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Antarctic The Antarctic Climate Dynamics 23 7-8 803 813 |