Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation
A 1:90-scale (undistorted) three dimensional coastal hydraulic model was used to investigate the design of proposed navigation improvements at Nome Harbor, Alaska, with respect to wave, current, and shoaling conditions at the site. The model reproduced about 3,350 m (11,000 ft) of the Alaskan shorel...
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ftdtic:ADA354454 2023-05-15T17:24:00+02:00 Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation Bottin, Robert R., Jr. Acuff, Hugh F. ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS 1998-09 text/html http://www.dtic.mil/docs/citations/ADA354454 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA354454 en eng http://www.dtic.mil/docs/citations/ADA354454 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Test Facilities Equipment and Methods Fluid Mechanics Geography Marine Engineering *ALASKA *MARINE TRANSPORTATION *HYDRAULIC MODELS *HARBOR MODELS CONTROL SYSTEMS COASTAL REGIONS AUTOMATION MATERIALS SITES ENERGY TURBULENCE LININGS BATHYMETRY SEDIMENT TRANSPORT SPECTRA NAVIGATION VERTICAL ORIENTATION INTERNAL OPERATION STORMS DATA ACQUISITION PATTERNS WALLS EXTERNAL GENERATORS ADAPTERS ROUGHNESS HEIGHT CHANNELS BREAKWATERS DOCKS WAVES TRACE ELEMENTS OFFSHORE COAL CAUSEWAYS NOME(ALASKA) Text 1998 ftdtic 2016-02-20T00:29:01Z A 1:90-scale (undistorted) three dimensional coastal hydraulic model was used to investigate the design of proposed navigation improvements at Nome Harbor, Alaska, with respect to wave, current, and shoaling conditions at the site. The model reproduced about 3,350 m (11,000 ft) of the Alaskan shoreline, the existing harbor and lower reaches of the Snake River, and sufficient offshore bathymetry in the Norton Sound to permit generation of the required experimental waves. The model was used to determine the impacts of a new entrance channel on wave-induced current patterns and magnitudes, sediment transport patterns, and wave conditions in the new channel and harbor area, as well as to optimize the lengths and alignments of new breakwaters and causeway extensions. A 24.4-m-long (9O-ft-1ong) unidirectional, spectral wave generator, and automated data acquisition and control system, and a crushed coal tracer material were utilized in model operation. It was concluded from study results that: a) existing conditions are characterized by rough and turbulent wave conditions in the existing entrance. Very confused wave patterns were observed in the entrance due to wave energy reflected off the vertical walls lining the entrance. Wave heights in excess of 1.5 m (5 ft) were obtained in the entrance for typical storm conditions; and wave heights of almost 3.7 m (12 ft) were obtained in the entrance for 5O-year storm wave conditions with extreme high-water level (4 m (+13 ft); b) wave conditions along the vertical-faced causeway docks were excessive for existing conditions. Wave heights in excess of 3.7 and 2.7 m (12 and 9 ft) were obtained along the outer and inner docks, respectively, for typical storm conditions; and wave heights of almost 7 and 5.8 m (23 and 19 ft) were recorded along these docks, respectively, for 5-year storm wave conditions with extreme high-water levels. Text Nome Alaska Defense Technical Information Center: DTIC Technical Reports database Norton Sound ENVELOPE(69.507,69.507,-49.202,-49.202) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Test Facilities Equipment and Methods Fluid Mechanics Geography Marine Engineering *ALASKA *MARINE TRANSPORTATION *HYDRAULIC MODELS *HARBOR MODELS CONTROL SYSTEMS COASTAL REGIONS AUTOMATION MATERIALS SITES ENERGY TURBULENCE LININGS BATHYMETRY SEDIMENT TRANSPORT SPECTRA NAVIGATION VERTICAL ORIENTATION INTERNAL OPERATION STORMS DATA ACQUISITION PATTERNS WALLS EXTERNAL GENERATORS ADAPTERS ROUGHNESS HEIGHT CHANNELS BREAKWATERS DOCKS WAVES TRACE ELEMENTS OFFSHORE COAL CAUSEWAYS NOME(ALASKA) |
spellingShingle |
Test Facilities Equipment and Methods Fluid Mechanics Geography Marine Engineering *ALASKA *MARINE TRANSPORTATION *HYDRAULIC MODELS *HARBOR MODELS CONTROL SYSTEMS COASTAL REGIONS AUTOMATION MATERIALS SITES ENERGY TURBULENCE LININGS BATHYMETRY SEDIMENT TRANSPORT SPECTRA NAVIGATION VERTICAL ORIENTATION INTERNAL OPERATION STORMS DATA ACQUISITION PATTERNS WALLS EXTERNAL GENERATORS ADAPTERS ROUGHNESS HEIGHT CHANNELS BREAKWATERS DOCKS WAVES TRACE ELEMENTS OFFSHORE COAL CAUSEWAYS NOME(ALASKA) Bottin, Robert R., Jr. Acuff, Hugh F. Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
topic_facet |
Test Facilities Equipment and Methods Fluid Mechanics Geography Marine Engineering *ALASKA *MARINE TRANSPORTATION *HYDRAULIC MODELS *HARBOR MODELS CONTROL SYSTEMS COASTAL REGIONS AUTOMATION MATERIALS SITES ENERGY TURBULENCE LININGS BATHYMETRY SEDIMENT TRANSPORT SPECTRA NAVIGATION VERTICAL ORIENTATION INTERNAL OPERATION STORMS DATA ACQUISITION PATTERNS WALLS EXTERNAL GENERATORS ADAPTERS ROUGHNESS HEIGHT CHANNELS BREAKWATERS DOCKS WAVES TRACE ELEMENTS OFFSHORE COAL CAUSEWAYS NOME(ALASKA) |
description |
A 1:90-scale (undistorted) three dimensional coastal hydraulic model was used to investigate the design of proposed navigation improvements at Nome Harbor, Alaska, with respect to wave, current, and shoaling conditions at the site. The model reproduced about 3,350 m (11,000 ft) of the Alaskan shoreline, the existing harbor and lower reaches of the Snake River, and sufficient offshore bathymetry in the Norton Sound to permit generation of the required experimental waves. The model was used to determine the impacts of a new entrance channel on wave-induced current patterns and magnitudes, sediment transport patterns, and wave conditions in the new channel and harbor area, as well as to optimize the lengths and alignments of new breakwaters and causeway extensions. A 24.4-m-long (9O-ft-1ong) unidirectional, spectral wave generator, and automated data acquisition and control system, and a crushed coal tracer material were utilized in model operation. It was concluded from study results that: a) existing conditions are characterized by rough and turbulent wave conditions in the existing entrance. Very confused wave patterns were observed in the entrance due to wave energy reflected off the vertical walls lining the entrance. Wave heights in excess of 1.5 m (5 ft) were obtained in the entrance for typical storm conditions; and wave heights of almost 3.7 m (12 ft) were obtained in the entrance for 5O-year storm wave conditions with extreme high-water level (4 m (+13 ft); b) wave conditions along the vertical-faced causeway docks were excessive for existing conditions. Wave heights in excess of 3.7 and 2.7 m (12 and 9 ft) were obtained along the outer and inner docks, respectively, for typical storm conditions; and wave heights of almost 7 and 5.8 m (23 and 19 ft) were recorded along these docks, respectively, for 5-year storm wave conditions with extreme high-water levels. |
author2 |
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS |
format |
Text |
author |
Bottin, Robert R., Jr. Acuff, Hugh F. |
author_facet |
Bottin, Robert R., Jr. Acuff, Hugh F. |
author_sort |
Bottin, Robert R., Jr. |
title |
Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
title_short |
Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
title_full |
Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
title_fullStr |
Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
title_full_unstemmed |
Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
title_sort |
design for navigation improvements at nome harbor, alaska coastal model investigation |
publishDate |
1998 |
url |
http://www.dtic.mil/docs/citations/ADA354454 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA354454 |
long_lat |
ENVELOPE(69.507,69.507,-49.202,-49.202) |
geographic |
Norton Sound |
geographic_facet |
Norton Sound |
genre |
Nome Alaska |
genre_facet |
Nome Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA354454 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766114776692293632 |