Mapping probabilities of extreme continental water storage changes from space gravimetry
Mapping probabilities of extreme continental water storage changes from space gravimetry
复制标题
通过空间重力测量绘制极端大陆水储存变化的概率
DOI：
10.1002/2016gl069538
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发表时间：
2016
影响因子：
5.2
通讯作者：
L. Longuevergne
中科院分区：
文献类型：
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作者：
Jürgen Kusche;A. Eicker;E. Forootan;A. Springer;L. Longuevergne
利用来自重力恢复和气候实验 (GRACE) 任务的数据，我们得出了统计上稳健的“热点”区域，这些区域出现峰值异常的概率很高，即相对于季节周期而言，水储存量（五年一次的回报水平高达 0.7 m）和通量（高达 0.14 m/月）。对长达 32 年的 ERA-中期再分析场的分析和比较表明，这些热点区域与 GRACE 结果总体上非常一致，而且大多数例外情况都位于热带地区。然而，模拟实验表明，GRACE 观测到的差异在统计上是显着的，进一步的误差分析表明，到 2020 年左右，假设我们通过后续 GRACE Follow-On (GRACE-FO) 任务继续 GRACE，那么到 2020 年左右，将有可能检测到至少 10-20% 的大陆地区极端总通量频率的时间变化（即主要是降水和洪水的综合影响）。
Using data from the Gravity Recovery And Climate Experiment (GRACE) mission, we derive statistically robust “hot spot” regions of high probability of peak anomalous—i.e., with respect to the seasonal cycle—water storage (of up to 0.7 m one‐in‐five‐year return level) and flux (up to 0.14 m/month). Analysis of, and comparison with, up to 32 years of ERA‐Interim reanalysis fields reveals generally good agreement of these hot spot regions to GRACE results and that most exceptions are located in the tropics. However, a simulation experiment reveals that differences observed by GRACE are statistically significant, and further error analysis suggests that by around the year 2020, it will be possible to detect temporal changes in the frequency of extreme total fluxes (i.e., combined effects of mainly precipitation and floods) for at least 10–20% of the continental area, assuming that we have a continuation of GRACE by its follow‐up GRACE Follow‐On (GRACE‐FO) mission.
影响因子：
13.5
作者：
Forootan, E.;Rietbroek, R.;Famiglietti, J.
通讯作者：
Famiglietti, J.
DOI：
10.1073/pnas.1519132113
发表时间：
2016-02-09
影响因子：
11.1
作者：
Rietbroek, Roelof;Brunnabend, Sandra-Esther;Dahle, Christoph
通讯作者：
Dahle, Christoph