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Measurement of internal seiche in Lake Chelan, WA


Authors: Phil Long CTEMPs OSU-UNR
Owners: CTEMPs OSU-UNR
Resource type: Composite Resource
Storage: The size of this resource is 2.8 MB
Created: Jan 02, 2019 at 10:48 p.m.
Last updated: Jan 02, 2019 at 11:09 p.m. by CTEMPs OSU-UNR
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Sharing Status: Public
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Abstract

The large internal seiche of the Lucerne Basin of Lake Chelan was described in Pelletier et al., 1989, in short, the rocking back and forth of the deep cold water in the Lucerne Basin. The data for this study was collected in 1986 and 1987 and showed an extreme internal seiche. During the summer of 1987 the amplitude of the rocking of the deep cold water was as much as 70 m and the period was approximately 3 days. The main goals of this study were to a) investigate the internal seiche in more detail than was possible in the 1980’s and b) determine how the seiche interacted with the sill between the Lucerne Basin and the Wapato Basin.

This study is significant to water quality of Lake Chelan in two ways. 1) Without knowing the status of the internal seiche under summer conditions, it is difficult to know the source of waters being sampled, the deep cold water versus the shallow warm water in the lake. Each of these waters typically exhibit different water quality signatures. 2) The interaction of the internal seiche with the lake bottom likely influences the transport of fine sediment, sediment distribution and water clarity in the vicinity of the narrows of Lake Chelan. Without knowledge of the seiche dynamics it will be difficult to interpret secchi depths and related water quality parameters in this part of the lake.

Raw project data will be available in 2020 by contacting ctemps@unr.edu

Subject Keywords

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name: Lake Chelan DTS study area
North Latitude
47.9314°
East Longitude
-120.2012°
South Latitude
47.9051°
West Longitude
-120.2128°

Temporal

Start Date:
End Date:

Content

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Collaborative Research: Facility Support: Center for Transformative Environmental Monitoring Programs (CTEMPs) 1440506

How to Cite

Long, P., C. OSU-UNR (2019). Measurement of internal seiche in Lake Chelan, WA, HydroShare, http://www.hydroshare.org/resource/05aa0f5eb1f945f38351c215eb02d9ef

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

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