Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica
A 1-D ice cover model was developed to predict and constrain drivers of long-termice thickness trends in chemically stratified lakes of Taylor Valley, Antarctica. The model is driven by surface radiative heat fluxes and heat fluxes from the underlying water column. The model successfully reproduced...
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ftmontanastateu:oai:scholarworks.montana.edu:1/12643 2023-05-15T13:54:59+02:00 Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica Obryk, Maciej K. Doran, Peter T. Hicks, J A McKay, C P Priscu, John C. 2016-10 application/pdf https://scholarworks.montana.edu/xmlui/handle/1/12643 en_US eng Obryk, M K, P T Doran, J A Hicks, C P McKay, and John C Priscu. "Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica." Journal of Glaciology 62, no. 235 (October 2016): 825-834. DOI:https://dx.doi.org/ 10.1017/jog.2016.69. 0022-1430 https://scholarworks.montana.edu/xmlui/handle/1/12643 Article 2016 ftmontanastateu 2022-06-06T07:28:03Z A 1-D ice cover model was developed to predict and constrain drivers of long-termice thickness trends in chemically stratified lakes of Taylor Valley, Antarctica. The model is driven by surface radiative heat fluxes and heat fluxes from the underlying water column. The model successfully reproduced 16 a (between 1996 and 2012) of ice thickness changes for the west lobe of Lake Bonney (average ice thickness = 3.53 m) and Lake Fryxell (average ice thickness = 4.22 m). Long-term ice thickness trends require coupling with the thermal structure of the water column. The heat stored within the temperature maximum of lakes exceeding a liquid water column depth of 20 m can either impede or facilitate ice thickness change depending on the predominant climatic trend (cooling or warming). As such, shallow (<20 m deep water columns) perennially ice-covered lakes without deep temperature maxima are more sensitive indicators of climate change. The long-term ice thickness trends are a result of surface energy flux and heat flux from the deep temperature maximum in the water column, the latter of which results from absorbed solar radiation. Office of Polar Programs (9810219, 0096250, 0832755, 1041742, 1115245); National Science Foundation Article in Journal/Newspaper Antarc* Antarctica Antarctica Journal Journal of Glaciology Montana State University (MSU): ScholarWorks Bonney ENVELOPE(162.417,162.417,-77.717,-77.717) Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Lake Bonney ENVELOPE(-25.588,-25.588,-80.361,-80.361) Lake Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) |
institution |
Open Polar |
collection |
Montana State University (MSU): ScholarWorks |
op_collection_id |
ftmontanastateu |
language |
English |
description |
A 1-D ice cover model was developed to predict and constrain drivers of long-termice thickness trends in chemically stratified lakes of Taylor Valley, Antarctica. The model is driven by surface radiative heat fluxes and heat fluxes from the underlying water column. The model successfully reproduced 16 a (between 1996 and 2012) of ice thickness changes for the west lobe of Lake Bonney (average ice thickness = 3.53 m) and Lake Fryxell (average ice thickness = 4.22 m). Long-term ice thickness trends require coupling with the thermal structure of the water column. The heat stored within the temperature maximum of lakes exceeding a liquid water column depth of 20 m can either impede or facilitate ice thickness change depending on the predominant climatic trend (cooling or warming). As such, shallow (<20 m deep water columns) perennially ice-covered lakes without deep temperature maxima are more sensitive indicators of climate change. The long-term ice thickness trends are a result of surface energy flux and heat flux from the deep temperature maximum in the water column, the latter of which results from absorbed solar radiation. Office of Polar Programs (9810219, 0096250, 0832755, 1041742, 1115245); National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Obryk, Maciej K. Doran, Peter T. Hicks, J A McKay, C P Priscu, John C. |
spellingShingle |
Obryk, Maciej K. Doran, Peter T. Hicks, J A McKay, C P Priscu, John C. Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
author_facet |
Obryk, Maciej K. Doran, Peter T. Hicks, J A McKay, C P Priscu, John C. |
author_sort |
Obryk, Maciej K. |
title |
Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
title_short |
Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
title_full |
Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
title_fullStr |
Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
title_full_unstemmed |
Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica |
title_sort |
modeling the thickness of perennial ice covers on stratified lakes of the taylor valley, antarctica |
publishDate |
2016 |
url |
https://scholarworks.montana.edu/xmlui/handle/1/12643 |
long_lat |
ENVELOPE(162.417,162.417,-77.717,-77.717) ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(-25.588,-25.588,-80.361,-80.361) ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.000,163.000,-77.617,-77.617) |
geographic |
Bonney Fryxell Lake Bonney Lake Fryxell Taylor Valley |
geographic_facet |
Bonney Fryxell Lake Bonney Lake Fryxell Taylor Valley |
genre |
Antarc* Antarctica Antarctica Journal Journal of Glaciology |
genre_facet |
Antarc* Antarctica Antarctica Journal Journal of Glaciology |
op_relation |
Obryk, M K, P T Doran, J A Hicks, C P McKay, and John C Priscu. "Modeling the thickness of perennial ice covers on stratified lakes of the Taylor Valley, Antarctica." Journal of Glaciology 62, no. 235 (October 2016): 825-834. DOI:https://dx.doi.org/ 10.1017/jog.2016.69. 0022-1430 https://scholarworks.montana.edu/xmlui/handle/1/12643 |
_version_ |
1766261202702303232 |