Inclusion of ice cover in a storm surge model for the Beaufort Sea

Danard, Maurice B.; Rasmussen, Marie; Murty, T. S.; Henry, R. F.; Kowalik, Z.; Venkatesh, S.

doi:10.1007/bf00141389

Cited by 10 publications

(6 citation statements)

References 14 publications

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“…Winds from the east set down water levels. These observations are consistent with bathystrophic surge theory (e.g., Dean and Dalrymple, 1991). Winds from the west are typically associated with the passage of synoptic-scale storms.…”

Section: Arctic Climate and Arctic Coastssupporting

confidence: 89%

“…Kowalik (1984) and Danard et al (1989) applied a full hydrodynamic model using sea-ice observations from Canadian Ice Service charts. Two more recent studies are inconclusive about the role of sea ice in storm-surge generation, primarily because sea ice is not well incorporated into existing storm-surge models (Manson and Solomon, 2007;Lynch et al, 2008).…”

Section: Sea-ice Control On Waves and Storm Surgesmentioning

confidence: 99%

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The effect of changing sea ice on the physical vulnerability of Arctic coasts

2014

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Abstract. Sea ice limits the interaction of the land and ocean water in the Arctic winter and influences this interaction in the summer by governing the fetch. In many parts of the Arctic, the open-water season is increasing in duration and summertime sea-ice extents are decreasing. Sea ice provides a first-order control on the physical vulnerability of Arctic coasts to erosion, inundation, and damage to settlements and infrastructures by ocean water. We ask how the changing sea-ice cover has influenced coastal erosion over the satellite record. First, we present a pan-Arctic analysis of satellite-based sea-ice concentration specifically along the Arctic coasts. The median length of the 2012 open-water season, in comparison to 1979, expanded by between 1.5 and 3-fold by Arctic Sea sector, which allows for open water during the stormy Arctic fall. Second, we present a case study of Drew Point, Alaska, a site on the Beaufort Sea, characterized by ice-rich permafrost and rapid coastal-erosion rates, where both the duration of the open-water season and distance to the sea-ice edge, particularly towards the northwest, have increased. At Drew Point, winds from the northwest result in increased water levels at the coast and control the process of submarine notch incision, the rate-limiting step of coastal retreat. When open-water conditions exist, the distance to the sea ice edge exerts control on the water level and wave field through its control on fetch. We find that the extreme values of water-level setup have increased consistently with increasing fetch.

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Section: Arctic Climate and Arctic Coastssupporting

confidence: 89%

Section: Sea-ice Control On Waves and Storm Surgesmentioning

confidence: 99%

The effect of changing sea ice on the physical vulnerability of Arctic coasts

2014

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“…However, like wave-sea ice interactions, fully incorporating sea ice into storm surge modeling is still an area of active research. Kowalik (1984) and Danard et al (1989) applied a full hydrodynamic model using sea ice observations from Canadian Atmospheric Environment Service Ice Central charts.…”

Section: Sea Ice Control On Waves and Storm Surgementioning

confidence: 99%

The effect of changing sea ice on the vulnerability of Arctic coasts

Barnhart¹,

Overeem²,

Anderson³

2014

Preprint

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Abstract. Shorefast sea ice prevents the interaction of the land and the ocean in the Arctic winter and influences this interaction in the summer by governing the fetch. In many parts of the Arctic the sea-ice-free season is increasing in duration, and the summertime sea ice extents are decreasing. Sea ice provides a first order control on the vulnerability of Arctic coasts to erosion, inundation, and damage to settlements and infrastructure. We ask how the changing sea ice cover has influenced coastal erosion over the satellite record. First, we present a pan-Arctic analysis of satellite-based sea ice concentration specifically along the Arctic coasts. The median length of the 2012 open water season in comparison to 1979 expanded by between 1.5 and 3-fold by Arctic sea sector which allows for open water during the stormy Arctic fall. Second, we present a case study of Drew Point, Alaska, a site on the Beaufort Sea characterized by ice-rich permafrost and rapid coastal erosion rates where both the duration of the sea ice free season and distance to the sea ice edge, particularly towards the northwest, has increased. At Drew Point, winds from the northwest result in increased water levels at the coast and control the process of submarine notch incision, the rate-limiting step of coastal retreat. When open water conditions exist, the distance to the sea ice edge exerts control on the water level and wave field through its control on fetch. We find that the extreme values of water level set-up have increased, consistent with increasing fetch.

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“…Furthermore, it is seen that the value of the drag coefficient is symmetrical at about 50-percent ice coverage, suggesting that the drag coefficient needed to represent 75-percent ice coverage is similar to that of 25-percent ice coverage. An alternative method using linear fit dependence on ice concentration has been applied by Danard et al (1989). The hypothesis of varying the wind drag coefficient with ice cover have been supported by a number of Chukchi and Beaufort Sea storm surge simulations (Henry and Heaps 1976;Kowalik 1984;and Schafer 1966) in which, wind drag coefficients greater than or equal to 0.0025 where utilized.…”

Section: Treatment Of Ice Cover -Methods For Specifying the Coefficienmentioning

confidence: 99%

“…The study in Lake St. Clair by Donelan et al (1992) was conducted in 1985 to measure the growth rate of wind-generated waves. The study provided multiple wave measurement sites in Lake St. Clair during three month duration.…”

Section: Donelan Et Al Studymentioning

confidence: 99%

Lake St. Clair: Storm Wave and Water Level Modeling

Hesser¹,

Cialone²,

Anderson³

2013

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Lake St. Clair is a shallow water body located between Lake Huron and Lake Erie in the Great Lakes complex with coastline in both the United States and Canada. The numerical modeling of waves and water levels was performed to capture storm conditions along the United States coastline. The methodology presented in Jensen et al. (2012) for Lake Michigan was followed for the majority of the project. The NOAA/NCEP Climate Forecast System Reanalysis wind fields were adjusted for marine exposure wind speeds. The WAM wave model was validated and applied for production of all wind generated wave results, including ice when applicable. The ADCIRC model was forced with wind fields, flow rates at the St. Clair River boundary, and water levels at the Detroit River boundary and validated to water levels at St. Clair Shores and Windmill Point. The ADCIRC model was tightly coupled with four near-shore Full-Plane STWAVE model grids using CSTORM-MS. The results show good agreement between all validation data sets, and low errors in the production storms with which data was available. In total, 145 storm events were run with the full numerical system to quantify the water level response to extreme events in Lake St. Clair. DISCLAIMER:The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. DESTROY THIS REPORT WHEN NO LONGER NEEDED. DO NOT RETURN IT TO THE ORIGINATOR.

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Inclusion of ice cover in a storm surge model for the Beaufort Sea

Cited by 10 publications

References 14 publications

The effect of changing sea ice on the physical vulnerability of Arctic coasts

The effect of changing sea ice on the physical vulnerability of Arctic coasts

The effect of changing sea ice on the vulnerability of Arctic coasts

Lake St. Clair: Storm Wave and Water Level Modeling

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