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DOI | 10.1080/14634988.2018.1500850 |
Detection of spatial and temporal hydro-meteorological trends in Lake Michigan, Lake Huron and Georgian Bay | |
Javed, Aisha; Cheng, Vincent Y. S.; Arhonditsis, George B. | |
发表日期 | 2019 |
ISSN | 1463-4988 |
EISSN | 1539-4077 |
卷号 | 22期号:1页码:1-14 |
英文摘要 | The Laurentian Great Lakes represent the largest freshwater basin on Earth, containing 21% of the world's surface fresh water by volume. Water level fluctuations are an on-going concern and have received considerable attention in the area. We present a trend analysis of meteorological (air temperature, cloud cover, and wind speed) and hydrological (precipitation, runoff, and evaporation) variables for Lake Michigan, Lake Huron, and Georgian Bay. Using the non-parametric Mann-Kendall test, our analysis identified significant upward trends in daily minimum air temperature, whereas daily maximum air temperature demonstrated weakly decreasing trends in space and time. Evaporation was found to be increasing from late spring until early fall and this pattern may be explained by the shortening of the ice/snow cover period, which results in faster warming of lake surface due to the induced variations in albedo feedback. Time-series analysis of the over-lake precipitation revealed mostly non-significant statistical trends. Recent temperature increases may have led to elevated winter runoff in the Great Lakes region, given that precipitation falls mainly as rain instead of snow. We also provide clear evidence of reduced cloud cover and wind speed. Our study offers critical insights into the patterns of within- and among-year variability of hydro-meteorological variables useful in elucidating the mechanisms that modulate water levels in the Great Lakes. |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
来源期刊 | AQUATIC ECOSYSTEM HEALTH & MANAGEMENT |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/89901 |
作者单位 | Univ Toronto, Dept Phys & Environm Sci, Ecol Modelling Lab, Toronto, ON M1C 1A4, Canada |
推荐引用方式 GB/T 7714 | Javed, Aisha,Cheng, Vincent Y. S.,Arhonditsis, George B.. Detection of spatial and temporal hydro-meteorological trends in Lake Michigan, Lake Huron and Georgian Bay[J],2019,22(1):1-14. |
APA | Javed, Aisha,Cheng, Vincent Y. S.,&Arhonditsis, George B..(2019).Detection of spatial and temporal hydro-meteorological trends in Lake Michigan, Lake Huron and Georgian Bay.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,22(1),1-14. |
MLA | Javed, Aisha,et al."Detection of spatial and temporal hydro-meteorological trends in Lake Michigan, Lake Huron and Georgian Bay".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 22.1(2019):1-14. |
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