Remotely sensed surface water variations during drought and deluge conditions in a Northern Great Plains terminal lake basin
Remotely sensed surface water variations during drought and deluge conditions in a Northern Great Plains terminal lake basin
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DOI：
10.1016/j.ejrh.2023.101392
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发表时间：
2023-06
期刊：
影响因子：
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通讯作者：
A. L. Archambault;Taufique H. Mahmood;P. Todhunter;S. Korom
中科院分区：
文献类型：
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作者：
A. L. Archambault;Taufique H. Mahmood;P. Todhunter;S. Korom
研究重点利用高分辨率全球地表水数据集(GSWD)，了解气候变化对魔鬼湖盆地(DLB)干旱至洪水条件下永久和季节性水域地表水动态的影响。新的水文见解在1990-2018年研究期间，DLB经历了干湿(1990-1999)、稳定(2000-2003)、近期湿润(2004-2013)和近期干旱(2014-2018)四个阶段。在湿润期(1990-1999年)观察到从裸地到永久季节性水域的实质性转变，而在稳定期(2000-2003年)，尽管整个NGP范围干旱，但几乎没有观察到变化。在最近的湿润时期(2004-2013年)，从季节性和裸露的土地上观察到了显著的永久水分的增加。在最近的干旱期(2014-2018年)，季节性水域面积显著减少到裸露土地。在最近的湿润时期(如2009年、2011年、2013年)，春季和夏季地表水面积之间的差异很大，但随着DLB接近干旱条件，差异要小得多。永久水域和季节性水域的年际和年内水动态对变化的水文气候驱动因素表现出不同的变化率和不同的水文滞后，这些变化对流域前缘条件很敏感。
Study regionNorthern Great Plains (NGP) region, North Dakota, USAStudy focusUnderstanding climate change impacts on surface water dynamics of permanent and seasonal water areas under drought to deluge conditions in the Devils Lake Basin (DLB) utilizing a high-resolution global surface water dataset (GSWD).New hydrologic insightsFour phases of dry and wet conditions were experienced in the DLB during the 1990–2018 study period: wetting (1990–1999), stable (2000–2003), recent wetting (2004–2013) and recent drying (2014–2018). A substantial transition from bare land to permanent and seasonal water area is observed during the wetting period (1990–99) while during the stable period (2000–2003), changes are barely observed despite NGP-wide drought. In the recent wetting period (2004–2013), a noticeable gain of permanent water from seasonal and bare land is observed. During the recent drying period (2014–2018), a significant loss of seasonal water area to bare land occurred. The difference between the spring and summer surface water areas is high during the recent wetting period (e.g., 2009, 2011, 2013), but much lower as the DLB approaches a drought condition. The inter-annual and intra-annual water dynamics of permanent and seasonal water areas show different rates of change and varying hydrological lags to changing hydroclimatic drivers and these changes are sensitive to basin antecedent conditions.