Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica
The snowmelt runoff during the austral summer at McMurdo Station is diurnally and seasonally variable. The variability is caused by a dynamic process in which the flow fluctuates daily and seasonally in response to solar and temperature input, melting the snow and glacier ice in the watershed. The c...
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ftdtic:AD1026064 2023-05-15T13:43:48+02:00 Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica Affleck,Rosa T Tischbein,Bruce Arbogast,Jude U.S. Army Engineer Research and Development Center Hanover United States 2017-01-01 text/html http://www.dtic.mil/docs/citations/AD1026064 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD1026064 en eng http://www.dtic.mil/docs/citations/AD1026064 Approved For Public Release; Geography Snow Ice and Permafrost drainage basins cold regions control systems hypervelocity flow engineering air temperature geotextiles Soil erosion EPOLAR(Engineering for Polar Operations Logistics and Research) Flow control McMurdo Station (Antarctica) NSF(national science foundation) Sediment pond Settling basins Snowmelt runoff Text 2017 ftdtic 2017-09-10T14:48:30Z The snowmelt runoff during the austral summer at McMurdo Station is diurnally and seasonally variable. The variability is caused by a dynamic process in which the flow fluctuates daily and seasonally in response to solar and temperature input, melting the snow and glacier ice in the watershed. The current state of drainage at McMurdo Station has operational challenges and environmental impact when incidents of extreme flow occur. A surge of massive amounts of runoff downstream overwhelms both the drainage-system capacity and operational personnel and mobilizes sediments and transports potential and known contaminants downstream. The purpose of this project was to demonstrate the feasibility and use of flow-control systems (including wooden and rock weirs) to attenuate flow in drainage channels and digging settling basins to contain snowmelt. When runoff was light to moderate, the weirs performed well, collecting sediments and attenuating the diurnal flows in the channels. However, the weirs became nonfunctional under high and surge flows. Experimental settling basins were constructed to determine whether they will retain the snowmelt and whether their berm and spillway will hold up and attenuate the flow. Moreover, this report highlights best management practices and lessons learned for sustained elimination of erosion and for reduced drainage-system maintenance. Text Antarc* Antarctica Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Austral McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Geography Snow Ice and Permafrost drainage basins cold regions control systems hypervelocity flow engineering air temperature geotextiles Soil erosion EPOLAR(Engineering for Polar Operations Logistics and Research) Flow control McMurdo Station (Antarctica) NSF(national science foundation) Sediment pond Settling basins Snowmelt runoff |
spellingShingle |
Geography Snow Ice and Permafrost drainage basins cold regions control systems hypervelocity flow engineering air temperature geotextiles Soil erosion EPOLAR(Engineering for Polar Operations Logistics and Research) Flow control McMurdo Station (Antarctica) NSF(national science foundation) Sediment pond Settling basins Snowmelt runoff Affleck,Rosa T Tischbein,Bruce Arbogast,Jude Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
topic_facet |
Geography Snow Ice and Permafrost drainage basins cold regions control systems hypervelocity flow engineering air temperature geotextiles Soil erosion EPOLAR(Engineering for Polar Operations Logistics and Research) Flow control McMurdo Station (Antarctica) NSF(national science foundation) Sediment pond Settling basins Snowmelt runoff |
description |
The snowmelt runoff during the austral summer at McMurdo Station is diurnally and seasonally variable. The variability is caused by a dynamic process in which the flow fluctuates daily and seasonally in response to solar and temperature input, melting the snow and glacier ice in the watershed. The current state of drainage at McMurdo Station has operational challenges and environmental impact when incidents of extreme flow occur. A surge of massive amounts of runoff downstream overwhelms both the drainage-system capacity and operational personnel and mobilizes sediments and transports potential and known contaminants downstream. The purpose of this project was to demonstrate the feasibility and use of flow-control systems (including wooden and rock weirs) to attenuate flow in drainage channels and digging settling basins to contain snowmelt. When runoff was light to moderate, the weirs performed well, collecting sediments and attenuating the diurnal flows in the channels. However, the weirs became nonfunctional under high and surge flows. Experimental settling basins were constructed to determine whether they will retain the snowmelt and whether their berm and spillway will hold up and attenuate the flow. Moreover, this report highlights best management practices and lessons learned for sustained elimination of erosion and for reduced drainage-system maintenance. |
author2 |
U.S. Army Engineer Research and Development Center Hanover United States |
format |
Text |
author |
Affleck,Rosa T Tischbein,Bruce Arbogast,Jude |
author_facet |
Affleck,Rosa T Tischbein,Bruce Arbogast,Jude |
author_sort |
Affleck,Rosa T |
title |
Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
title_short |
Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
title_full |
Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
title_fullStr |
Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
title_full_unstemmed |
Flow-Control Systems Proof of Concept for Snowmelt Runoff at McMurdo Station, Antarctica |
title_sort |
flow-control systems proof of concept for snowmelt runoff at mcmurdo station, antarctica |
publishDate |
2017 |
url |
http://www.dtic.mil/docs/citations/AD1026064 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD1026064 |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
Austral McMurdo Station |
geographic_facet |
Austral McMurdo Station |
genre |
Antarc* Antarctica Ice permafrost |
genre_facet |
Antarc* Antarctica Ice permafrost |
op_relation |
http://www.dtic.mil/docs/citations/AD1026064 |
op_rights |
Approved For Public Release; |
_version_ |
1766193473336115200 |