- Date
- 2020-07
- Eras
- Modern era
- Concepts
- geologyheritagehistoriography
- Within
- Beaver Island archipelago
Summary
This held 2020 publication by Todd A. Thompson and Erin P. Argyilan is a regional synthesis of Lake Michigan lake-level variation. It describes annual, historical, and geological time scales and situates recent high-water conditions within a reconstructed long-term record.
Evidence and limits
The study supports regional context for interpreting historical accounts of Lake Michigan harbors, docks, and shorelines. Its beach-ridge examples and field setting are on the Indiana shore, so it does not establish any Beaver Island shoreline elevation, rate of erosion, shoreline change, local groundwater condition, or future water level.
The study’s cyclic interpretation is a geological synthesis, not a prediction for a particular island year or a substitute for an edition-specific chart, survey, gauge record, or local engineering assessment.
See also
Sources
- Held open-access publication. It describes Lake Michigan seasonal and historical instrumental variation, a reconstructed multi-millennial lake-level record, and the authors’ interpretation of roughly 30- and 160-year cycles. Its examples and beach-ridge field context are along the Indiana shore; it is regional context, not an island-specific survey, elevation record, erosion assessment, or shoreline forecast.geology · publications · thompson_argyilan_2020_ijes
- Project provenance sidecar for Thompson and Argyilan 2020.Records the open-access source URL, retrieval timestamp, checksum, 1,004,972-byte file size, DOI, and stated relevance as a modern restatement of the long Lake Michigan lake-level curve. No public copy of this file is known; the archive holds one and can provide it on request.geology · publications · thompson_argyilan_2020_ijes.provenance
Added 2 August 2026. Recent changes
Cite this article
Beaver Island Archive, “A Geological Understanding of Lake Michigan’s High Lake Levels, 2020”, https://beaverislandarchive.org/documents/thompson-argyilan-lake-michigan-levels-2020/, accessed [date], citing Todd A. Thompson and Erin P. Argyilan, “A Geological Understanding of Lake Michigan’s High Lake Levels,” *Indiana Journal of Earth Sciences* 2 (July 2020), doi:10.14434/ijes.v2i0.31135. (and 1 further source listed on the page).
Last revised 2026-08-02. Fill in [date] with the date you read it — this page is static and cannot know that.
BibTeX for “A Geological Understanding of Lake Michigan’s High Lake Levels, 2020”RIS for “A Geological Understanding of Lake Michigan’s High Lake Levels, 2020”