What caused the low-water phase of glacial Lake Agassiz?
Bibliographic Data
| ID | 24085935 |
|---|---|
| Authors | Thomas V Lowell (0000-0001-7826-0636, University of Cincinnati, corresponding author), Patrick J Applegate, Timothy G Fisher (0000-0003-3339-4731, University of Toledo), Kenneth Lepper (North Dakota State University) |
| Year | 2013 |
| Volume | 80 |
| Issue | 3 |
| Pages | 370-382 |
| Publication date | 2013-11-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Quaternary Research (JOURNAL) |
| Journal identifiers | ISSN: 0033-5894 • E-ISSN: 1096-0287 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1016/j.yqres.2013.06.002 |
| OpenAlex | W2009709915 |
| Language | EN |
| Citations received | 1 |
| References cited | 74 |
First-order modeling suggests that a low-water phase in late-glacial Lake Agassiz can be explained through changes in the balance between evaporation, precipitation, and runoff, rather than drainage. The low-water Moorhead Phase is often attributed to drainage through outlets opened by isostatic depression and retreat of the Laurentide ice margin. However, new data indicate that the proposed outlets were ice-covered during the Moorhead Phase. Instead, the lake water levels dropped to the Moorhead Phase before the start of the Younger Dryas chronozone and remained there until 11.3 ka. Thus, drainage seems to be an implausible explanation for Younger Dryas-aged low water levels in Lake Agassiz. An alternative explanation is that evaporation equaled or exceeded water inputs from the adjacent ice margin and the deglaciated parts of the drainage basin. To evaluate whether this hypothesis is plausible, we constructed a simple model that considers the paleo-basin geometry, hydrology, and meltwater production from the adjacent ice margin. Modest hydrologic changes (within the range of present-day variability), coupled with low meltwater production, produce a closed basin. Shifts in the location of the polar jet, driven by increased Arctic albedo, may explain our inferred hydrologic changes.
Antarctic sea ice · Arctic · Arctic ice pack · Geomorphology · Glacial lake · Glacial period · Hydrology (agriculture) · Ice sheet · Meltwater · Shelf ice · Stadial · Surface runoff · Younger Dryas · Geology · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Methane Hydrates and Related Phenomena · Oceanography
A Chronology for glacial Lake Agassiz shorelines along Upham's namesake transect
Synchronization of late-glacial vegetation changes at Crystal Lake, Illinois, USA with the North Atlantic Event Stratigraphy
Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA
Late Pleistocene and Late Holocene Lake Highstands in the Pyramid Lake Subbasin of Lake Lahontan, Nevada, USA
Provenance of freshwater pulses in the Gulf of Mexico during the last deglaciation
The Atlantic Multidecadal Oscillation and its relation to rainfall and river flows in the continental U.S.
Evidence for general instability of past climate from a 250-kyr ice-core record
Insolation values for the climate of the last 10 million years
Southward Migration of the Intertropical Convergence Zone Through the Holocene
A new Greenland ice core chronology for the last glacial termination
Timing and climatic impact of Greenland interstadials recorded in stalagmites from northern Turkey
High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years
Millennial- and orbital-scale changes in the East Asian monsoon over the past 224,000 years
Thunder Bay, Ontario, was not a pathway for catastrophic floods from Glacial Lake Agassiz
Testing northwest drainage from Lake Agassiz using extant ice margin and strandline data
The rise and fall of Lake Bonneville between 45 and 10.5 ka
Late Pleistocene and Early Holocene lake‐level fluctuations in the Lahontan Basin, Nevada
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,13 |
| Citation span | 2018 - 2018 (1) |
| Citation velocity | historical |
| Highly cited | No |