Publications related to the GRACE Missions (no abstracts)

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A Remote Sensing-Based Assessment of Water Resources in the Arabian Peninsula

Wehbe, Youssef and Temimi, Marouane, 2021. A Remote Sensing-Based Assessment of Water Resources in the Arabian Peninsula. Remote Sensing, 13(2):247, doi:10.3390/rs13020247.

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@ARTICLE{2021RemS...13..247W,
       author = {{Wehbe}, Youssef and {Temimi}, Marouane},
        title = "{A Remote Sensing-Based Assessment of Water Resources in the Arabian Peninsula}",
      journal = {Remote Sensing},
     keywords = {precipitation, soil moisture, water storage, change point, Arabian Peninsula},
         year = 2021,
        month = jan,
       volume = {13},
       number = {2},
          eid = {247},
        pages = {247},
     abstract = "{A better understanding of the spatiotemporal distribution of water
        resources is crucial for the sustainable development of hyper-
        arid regions. Here, we focus on the Arabian Peninsula (AP) and
        use remotely sensed data to (i) analyze the local climatology of
        total water storage (TWS), precipitation, and soil moisture;
        (ii) characterize their temporal variability and spatial
        distribution; and (iii) infer recent trends and change points
        within their time series. Remote sensing data for TWS,
        precipitation, and soil moisture are obtained from the Gravity
        Recovery and Climate Experiment (GRACE), the Tropical Rainfall
        Measuring Mission (TRMM), and the Advanced Microwave Scanning
        Radiometer for Earth Observing System (AMSR-E), respectively.
        The study relies on trend analysis, the modified Mann-Kendall
        test, and change point detection statistics. We first derive
        10-year (2002-2011) seasonal averages from each of the datasets
        and intercompare their spatial organization. In the absence of
        large-scale in situ data, we then compare trends from GRACE TWS
        retrievals to in situ groundwater observations locally over the
        subdomain of the United Arab Emirates (UAE). TWS anomalies vary
        between -6.2 to 3.2 cm/month and -6.8 to -0.3 cm/month during
        the winter and summer periods, respectively. Trend analysis
        shows decreasing precipitation trends (-2.3 {\texttimes}
        10$^{-4}$ mm/day) spatially aligned with decreasing soil
        moisture trends (-1.5 {\texttimes} 10$^{-4}$ g/cm$^{3}$/month)
        over the southern part of the AP, whereas the highest decreasing
        TWS trends (-8.6 {\texttimes} 10$^{-2}$ cm/month) are recorded
        over areas of excessive groundwater extraction in the northern
        AP. Interestingly, change point detection reveals increasing
        precipitation trends pre- and post-change point breaks over the
        entire AP region. Significant spatial dependencies are observed
        between TRMM and GRACE change points, particularly over Yemen
        during 2010, revealing the dominant impact of climatic changes
        on TWS depletion.}",
          doi = {10.3390/rs13020247},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2021RemS...13..247W},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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