Drought Events over the Amazon River Basin (1993-2019) as Detected by the Climate-Driven Total Water Storage Change

Drought Events over the Amazon River Basin (1993-2019) as Detected by the Climate-Driven Total Water Storage Change
复制标题

气候驱动的总水储量变化检测到的亚马逊河流域干旱事件(1993-2019)

DOI:
10.3390/rs13061124
复制
发表时间:
2021
期刊:
影响因子:
5
通讯作者:
Liu Cong
Liu Cong
中科院分区:
工程技术2区
文献类型:
--
作者:
Tian Kunjun;Wang Zhengtao;Li Fupeng;Gao Yu;Xiao Yang;Liu Cong

文献摘要

参考文献

相似文献

自2002年以来,重力恢复和气候实验(GRACE)任务以前所未有的方式测量了总储水量变化(TWSC)并解释了干旱模式。然而,在格蕾丝时代之前,几乎没有什么资料可以用来了解干旱模式。在这项研究中,我们通过结合主成分分析(PCA)、最小二乘(LS)拟合和多元线性回归(MLR)方法,以气候变量作为输入驱动,将网格Grace twsc扩展到1993年。我们使用扩展的(气候驱动的)TWSC来解释亚马逊盆地的干旱模式(1993-2019年)。结果表明,在亚马逊地区0.5°分辨率下,GRACE、GRACE FLOWON和SERWN与气候驱动的TWSCS的相关系数分别为0.95、0.92和0.77。气候驱动的TWSC评估的干旱模式与Palmer干旱严重程度指数和GRACE TWSC所解释的一致。我们还发现,1998年和2016年亚马逊地区的干旱事件都是由强烈的厄尔尼诺事件引发的,表现出类似的干旱模式。这项研究为解释格雷斯期前的长期干旱模式提供了一个新的视角。
The Gravity Recovery and Climate Experiment (GRACE) mission has measured total water storage change (TWSC) and interpreted drought patterns in an unparalleled way since 2002. Nevertheless, there are few sources that can be used to understand drought patterns prior to the GRACE era. In this study, we extended the gridded GRACE TWSC to 1993 by combining principal component analysis (PCA), least square (LS) fitting, and multiple linear regression (MLR) methods using climate variables as input drivers. We used the extended (climate-driven) TWSC to interpret drought patterns (1993–2019) over the Amazon basin. Results showed that, in the Amazon area with the resolution of 0.5°, GRACE, GRACE follow on, and Swarm had correlation coefficients of 0.95, 0.92, and 0.77 compared with climate-driven TWSCS, respectively. The drought patterns assessed by the climate-driven TWSC were consistent with those interpreted by the Palmer Drought Severity Index and GRACE TWSC. We also found that the 1998 and 2016 drought events in the Amazon, both induced by strong El Niño events, showed similar drought patterns. This study provides a new perspective for interpreting long-term drought patterns prior to the GRACE period.
DOI: 10.1016/j.ecohyd.2016.01.001
发表时间: 2016-02
影响因子: 2.6
作者:
M. Zalewski;M. McClain;S. Eslamian
通讯作者: M. Zalewski;M. McClain;S. Eslamian
DOI: 10.1117/1.jrs.9.096023
发表时间: 2015
影响因子: 1.7
作者:
N. Nie;Wanchang Zhang;Huadong Guo;N. Ishwaran
通讯作者: N. Nie;Wanchang Zhang;Huadong Guo;N. Ishwaran
DOI: 10.1080/01431161.2016.1232874
发表时间: 2016-10
影响因子: 3.4
作者:
N. Vergopolan;J. Fisher
通讯作者: N. Vergopolan;J. Fisher
DOI: 10.1175/1520-0442(1991)004
发表时间: 1991-02
期刊: Journal of Climate
影响因子: 4.9
作者:
T. Parish;D. Bromwich
通讯作者: T. Parish;D. Bromwich
DOI: 10.1029/2002wr001808
发表时间: 2003-08
影响因子: 5.4
作者:
S. Swenson;J. Wahr;P. Milly
通讯作者: S. Swenson;J. Wahr;P. Milly