Modelling climate constraints on the formation of pluvial Lake Bonneville in the Great Basin, United States
Modelling climate constraints on the formation of pluvial Lake Bonneville in the Great Basin, United States
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模拟美国大盆地邦纳维尔洪流湖形成的气候限制
DOI:
10.1002/jqs.3394
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发表时间:
2021
影响因子:
2.3
通讯作者:
Quirk, Brendon J.
中科院分区:
文献类型:
--
作者:
Belanger, Bryce K.;Amidon, William H.;Laabs, Benjamin J. C.;Munroe, Jeffrey S.;Quirk, Brendon J.
This study uses a hydrologic‐balance model to evaluate the range of precipitation and temperature (P‐T) conditions required to sustain Lake Bonneville at two lake levels during the late Pleistocene. Intersection with a second set of P‐T curves determined from glacial modelling in the nearby Wasatch Mountains places tighter climatic constraints that suggest gradually increasing wetness from ~21 to 15 ka. Specifically, during the latter part of the Last Glacial Maximum (LGM) (~21–20 ka), Lake Bonneville approached its highest level under conditions roughly 9.5°C colder but only 7% wetter than modern. As the lake reached its pre‐flood Bonneville level (~18.2–17.5 ka), climate conditions were ~16% wetter and ~9°C colder than modern. Byca. 15–14.8 ka, Lake Bonneville abandoned the overflowing Provo level under conditions that were ~21% wetter and ~7°C cooler. These results suggest that regional LGM highstands were not caused by large increases in precipitation, but rather by a climatic optimum in which moderate wetness combined with depressed temperatures to create a positive hydrologic budget. Later highstands during Heinrich I from 17 to 15 ka were likely achieved under gradual increases in precipitation, prior to a transition to drier conditions after 15 ka.
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影响因子:
2.3
作者:
H. Godsey;Donald R. Currey;M. Chan
通讯作者:
M. Chan
影响因子:
2.2
作者:
David M. Miller;C. Oviatt;J. McGeehin
通讯作者:
J. McGeehin
影响因子:
4
作者:
Oviatt, Charles G.
通讯作者:
Oviatt, Charles G.
DOI:
10.3133/mf2323
发表时间:
1999
期刊:
Miscellaneous Field Studies Map
影响因子:
--
作者:
M. Reheis
通讯作者:
M. Reheis
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
David M. Miller
通讯作者:
David M. Miller