Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier
The impact on the hydrology of the Situk River of a sustained closure of Alaska's Russell Fiord by Hubbard Glacier is described. A hydrological model was developed and used to estimate the daily inflows into Russell Lake (created by the closure of Russell Fiord). These daily inflows, when route...
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ftdtic:ADA538302 2023-05-15T16:20:25+02:00 Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier Daly, Steven F. Vuyovich, Carrie Finnegan, David ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB 2011-03 text/html http://www.dtic.mil/docs/citations/ADA538302 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA538302 en eng http://www.dtic.mil/docs/citations/ADA538302 Approved for public release; distribution is unlimited. DTIC Hydrology Limnology and Potamology *HYDROLOGY *LAKES *RIVERS *FLOW ONE DIMENSIONAL FLOW MIGRATION CHANNELS(WATERWAYS) PROFILES EROSION MODELS IMPACT SURVEYS HUBBARD GLACIER RUSSELL FIORD(ALASKA) RUSSELL LAKE(ALASKA) SITUK RIVER(ALASKA) *FIORDS *INFLOWS OUTFLOWS Text 2011 ftdtic 2016-02-23T06:20:55Z The impact on the hydrology of the Situk River of a sustained closure of Alaska's Russell Fiord by Hubbard Glacier is described. A hydrological model was developed and used to estimate the daily inflows into Russell Lake (created by the closure of Russell Fiord). These daily inflows, when routed through Russell Lake, determine the flow into the Old Situk River after the Russell Lake level has risen approximately 137.2 ft. A HEC-RAS one-dimensional flow model estimated the levels and flows of the Situk River system, including the Old Situk, Upper Situk, and Lower Situk rivers. The channel geometry was based on an extensive LiDAR survey conducted in 2005. The levels and flows in the Situk River system were simulated over 15 years using the estimated daily outflows from Russell Lake to determine the hydrology of the Situk River system. The flow percentiles, annual exceedance probabilities, and average daily flows were estimated. The flow profiles were used to develop inundation maps and investigate potential channel erosion, the impacts on the Old Situk River crossing and Situk Lake, and the potential influence of log jams and channel migration. The original document contains color images. Text glacier Alaska Defense Technical Information Center: DTIC Technical Reports database Hubbard Glacier ENVELOPE(-139.379,-139.379,60.344,60.344) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Hydrology Limnology and Potamology *HYDROLOGY *LAKES *RIVERS *FLOW ONE DIMENSIONAL FLOW MIGRATION CHANNELS(WATERWAYS) PROFILES EROSION MODELS IMPACT SURVEYS HUBBARD GLACIER RUSSELL FIORD(ALASKA) RUSSELL LAKE(ALASKA) SITUK RIVER(ALASKA) *FIORDS *INFLOWS OUTFLOWS |
spellingShingle |
Hydrology Limnology and Potamology *HYDROLOGY *LAKES *RIVERS *FLOW ONE DIMENSIONAL FLOW MIGRATION CHANNELS(WATERWAYS) PROFILES EROSION MODELS IMPACT SURVEYS HUBBARD GLACIER RUSSELL FIORD(ALASKA) RUSSELL LAKE(ALASKA) SITUK RIVER(ALASKA) *FIORDS *INFLOWS OUTFLOWS Daly, Steven F. Vuyovich, Carrie Finnegan, David Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
topic_facet |
Hydrology Limnology and Potamology *HYDROLOGY *LAKES *RIVERS *FLOW ONE DIMENSIONAL FLOW MIGRATION CHANNELS(WATERWAYS) PROFILES EROSION MODELS IMPACT SURVEYS HUBBARD GLACIER RUSSELL FIORD(ALASKA) RUSSELL LAKE(ALASKA) SITUK RIVER(ALASKA) *FIORDS *INFLOWS OUTFLOWS |
description |
The impact on the hydrology of the Situk River of a sustained closure of Alaska's Russell Fiord by Hubbard Glacier is described. A hydrological model was developed and used to estimate the daily inflows into Russell Lake (created by the closure of Russell Fiord). These daily inflows, when routed through Russell Lake, determine the flow into the Old Situk River after the Russell Lake level has risen approximately 137.2 ft. A HEC-RAS one-dimensional flow model estimated the levels and flows of the Situk River system, including the Old Situk, Upper Situk, and Lower Situk rivers. The channel geometry was based on an extensive LiDAR survey conducted in 2005. The levels and flows in the Situk River system were simulated over 15 years using the estimated daily outflows from Russell Lake to determine the hydrology of the Situk River system. The flow percentiles, annual exceedance probabilities, and average daily flows were estimated. The flow profiles were used to develop inundation maps and investigate potential channel erosion, the impacts on the Old Situk River crossing and Situk Lake, and the potential influence of log jams and channel migration. The original document contains color images. |
author2 |
ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB |
format |
Text |
author |
Daly, Steven F. Vuyovich, Carrie Finnegan, David |
author_facet |
Daly, Steven F. Vuyovich, Carrie Finnegan, David |
author_sort |
Daly, Steven F. |
title |
Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
title_short |
Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
title_full |
Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
title_fullStr |
Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
title_full_unstemmed |
Situk River Hydrology Following Closure of Russell Fiord by Hubbard Glacier |
title_sort |
situk river hydrology following closure of russell fiord by hubbard glacier |
publishDate |
2011 |
url |
http://www.dtic.mil/docs/citations/ADA538302 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA538302 |
long_lat |
ENVELOPE(-139.379,-139.379,60.344,60.344) |
geographic |
Hubbard Glacier |
geographic_facet |
Hubbard Glacier |
genre |
glacier Alaska |
genre_facet |
glacier Alaska |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA538302 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766008344309399552 |