DOI: 10.1002/2015GL063799
论文题名: Impacts of extreme 2013-2014 winter conditions on Lake Michigan's fall heat content, surface temperature, and evaporation
作者: Gronewold A.D. ; Anderson E.J. ; Lofgren B. ; Blanken P.D. ; Wang J. ; Smith J. ; Hunter T. ; Lang G. ; Stow C.A. ; Beletsky D. ; Bratton J.
刊名: Geophysical Research Letters
ISSN: 0094-9219
EISSN: 1944-8950
出版年: 2015
卷: 42, 期: 9 起始页码: 3364
结束页码: 3370
语种: 英语
英文关键词: El Niño
; evaporation
; Great Lakes
; hydrologic regimes
; ice cover
; thermal regimes
Scopus关键词: Atmospheric temperature
; Enthalpy
; Evaporation
; Open hearth furnaces
; Surface properties
; Water levels
; Great lakes
; Hydrologic conditions
; Hydrologic regime
; Ice cover
; Laurentian Great Lakes
; Precipitation rates
; Surface temperatures
; Thermal regimes
; Lakes
; climate forcing
; evaporation
; heat flux
; hydrological regime
; surface temperature
; thermal regime
; water level
; winter
; Great Lakes [North America]
; Lake Michigan
英文摘要: Since the late 1990s, the Laurentian Great Lakes have experienced persistent low water levels and above average over-lake evaporation rates. During the winter of 2013-2014, the lakes endured the most persistent, lowest temperatures and highest ice cover in recent history, fostering speculation that over-lake evaporation rates might decrease and that water levels might rise. To address this speculation, we examined interseasonal relationships in Lake Michigan's thermal regime. We find pronounced relationships between winter conditions and subsequent fall heat content, modest relationships with fall surface temperature, but essentially no correlation with fall evaporation rates. Our findings suggest that the extreme winter conditions of 2013-2014 may have induced a shift in Lake Michigan's thermal regime and that this shift coincides with a recent (and ongoing) rise in Great Lakes water levels. If the shift persists, it could (assuming precipitation rates remain relatively constant) represent a return to thermal and hydrologic conditions not observed on Lake Michigan in over 15years. Key Points Lake Michigan has been in an altered thermal regime since the late 1990s The 2013-2014 winter may return Lake Michigan to pre-1998 thermal conditions Hydrological impacts of the 2013-2014 cold winter remain unclear ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930476598&doi=10.1002%2f2015GL063799&partnerID=40&md5=726139a65fec71371993d6d47f01a8bf
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8835
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: National Oceanic and Atmospheric Administration, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, United States
Recommended Citation:
Gronewold A.D.,Anderson E.J.,Lofgren B.,et al. Impacts of extreme 2013-2014 winter conditions on Lake Michigan's fall heat content, surface temperature, and evaporation[J]. Geophysical Research Letters,2015-01-01,42(9).