Changes in Terrestrial Water Storage During 2003–2014 and Possible Causes in Tibetan Plateau

Meng, Fanchong; Su, Fengge; Li, Ying; Tong, Kai

doi:10.1029/2018jd029552

Cited by 105 publications

(71 citation statements)

References 126 publications

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“…The major reason probably is that the models underestimate the declining trend of TWS in the midstream YRB and do not reflect the increasing trend of TWS in the headwater region. The increasing trend of TWS around the three-river headwater region was found in previous studies, and the increasing precipitation at the northern part of the Tibetan Plateau as well as the reservoir operation is probably the major cause (Deng et al, 2018;Meng et al, 2019;Xie et al, 2019;Yi et al, 2017).…”

Section: Spatial Patterns Of Twsa Trendssupporting

confidence: 66%

Understanding Terrestrial Water Storage Declining Trends in the Yellow River Basin

et al. 2019

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Under dual impacts from climate change and human activities, the Yellow River Basin (YRB) of China suffers from droughts and water scarcity. Understanding variations of terrestrial water storage (TWS) over the YRB is significant and beneficial to regional water resources management and sustainable development. This study investigates TWS variations in the YRB using data sets from two solutions (RL05 and RL06) of the Gravity Recovery and Climate Experiment (GRACE) satellites, as well as from global land surface models (the NOAH model and Catchment Land Surface Model [CLSM]) and hydrology and water resources model (PCR‐GLOBWB). Annual terrestrial water storage anomalies (TWSA) variation patterns were tracked by introducing a weighed centroid analysis concept. Human water use was analyzed, and its importance to TWS changes was evaluated by using the random forest algorithm. Conclusions can be briefly summarized as follows: (1) The declining trend of TWS in the YRB from the RL06 solution is more negative than that from RL05; the TWS trend from the PCR‐GLOBWB model is more consistent with GRACE than with the NOAH model and CLSM at the basin level, and the three models all underestimate the declining trend of TWS in the midstream relative to the GRACE solutions. (2) Spatial weighed centroids of annual GRACE TWSA moved toward the headwater of the YRB during the 2003–2015 period, suggesting a wide gap of TWS between the upstream and downstream YRB; the TWSA time series well correlate with the long‐term accumulation of climatic water balance, but the connections became weak in the 2010–2015 period. (3) Groundwater withdrawals have been controlled according to the Water Resources Bulletin, but the stress may be partly shifted to surface water; the increasing trend of ecological and industrial surface water use is significant, following the agriculture water use. (4) For the entire YRB, groundwater use accounts for the majority of feature importance in modeling TWSA time series, and the contribution of climate factors is the least. Agricultural water use ranks first relative to other sectors for the YRB, followed by the ecological and industrial use. This study provides a first comparison of TWSA between the latest Center for Space Research (CSR) GRACE RL06 solution and the previous RL05 solution in the YRB. The results are expected to present a comprehensive picture of TWS variations in the YRB and the impacts from climate and human factors.

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Section: Spatial Patterns Of Twsa Trendssupporting

confidence: 66%

Understanding Terrestrial Water Storage Declining Trends in the Yellow River Basin

et al. 2019

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“…Changes in TWS are strongly affected by climate change, e.g., drought, floods, prolonged high temperatures, and anthropogenic activities, e.g., abstraction-driven groundwater depletion. Recent TWS information has raised worldwide concerns because of its association with freshwater availability and concerns about the sustainability of global water resources (Creutzfeldt et al, 2015;Meng et al, 2019). Accurate monitoring and quantification of TWS are therefore critical for sustainable water resource management.…”

Section: Introductionmentioning

confidence: 99%

“…Gravity Recovery and Climate Experiment (GRACE) satellites measured global TWS changes from April 2002 to June 2017 (Reager et al, 2009), which provided hydrologists with practical insights at regional and global scales in comparison to in situ measurements (Zhang et al, 2015;Cao et al, 2019). With GRACE data, the previous literature has mostly focused on the TWS changes at the basin (Zhang et al, 2015;Shamsudduha et al, 2017;Yang et al, 2017), regional (Rodell et al, 2009;Long et al, 2013;Creutzfeldt et al, 2015;Ndehedehe et al, 2017) or continental scale (Syed et al, 2008;Rakovec et al, 2016;Yi et al, 2016;Ni et al, 2018). For instance, Rakovec et al (2016) analyzed the X.…”

Section: Introductionmentioning

confidence: 99%

“…For example, prominent teleconnection patterns such as El Niño-Southern Oscillation (ENSO) show that El Niño years are related to reduced precipitation, continental freshwater discharge, and evapotranspiration over many land areas; therefore, TWS variability occurs over many land areas (Gonsamo et al, 2016). Many studies have attempted to address the possible causes of TWS changes by connecting TWS with TC (Phillips et al, 2012;Ndehedehe et al, 2017;Ni et al, 2018;Forootan et al, 2019). However, these studies focused primarily on the effect of ENSO on TWS.…”

Section: Introductionmentioning

confidence: 99%

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Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe

Liu

Feng

Ciais

et al. 2020

Hydrol. Earth Syst. Sci.

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Abstract. Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns about the sustainability of global water resources. However, our knowledge regarding the long-term trends in TWS and its components is still not well documented. In this study, we characterize the spatiotemporal variations in TWS and its components over the Asian and eastern European regions from April 2002 to June 2017 based on Gravity Recovery and Climate Experiment (GRACE) satellite observations, land surface model simulations, and precipitation observations. The connections of TWS and global major teleconnections (TCs) are also discussed. The results indicate a widespread decline in TWS during 2002–2017, and five hotspots of TWS negative trends were identified with trends between −8.94 and −21.79 mm yr−1. TWS partitioning suggests that these negative trends are primarily attributed to the intensive over-extraction of groundwater and warmth-induced surface water loss, but the contributions of each hydrological component vary among hotspots. The results also indicate that the El Niño–Southern Oscillation, Arctic Oscillation and North Atlantic Oscillation are the three largest dominant factors controlling the variations in TWS through the covariability effect on climate variables. However, seasonal results suggest a divergent response of hydrological components to TCs among seasons and hotspots. Our findings provide insights into changes in TWS and its components over the Asian and eastern European regions, where there is a growing demand for food grains and water supplies.

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“…TWS was composed of surface water (SW), including lakes, snow water equivalent, canopy water and glaciers, soil moisture (SM) and groundwater (GW) storage (Cao et al, 2019;Ni et al, 2018). Recent TWS has raised worldwide concerns because of its association with freshwater availability and concerns of the sustainability of global water resources (Creutzfeldt et al, 2012;Meng et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Widespread Decline in Terrestrial Water Storage and Its Link to Teleconnections across Asia and Eastern Europe

Liu¹,

Feng²,

Ciais³

et al. 2019

Preprint

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Abstract. Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns over the sustainability of global water resources. However, our knowledge regarding the long-term trend in TWS and its components is still not well documented. In this work, we characterize the spatiotemporal variations in TWS and its components over the Asian and Eastern European regions during the period of April 2002 to June 2017 using multiple sources of data, including Gravity Recovery and Climate Experiment (GRACE) satellite observations, land surface model simulations and precipitation observations. The connections of TWS and global major teleconnections (TCs) are also discussed. The results indicate a widespread decline in TWS during 2002–2017, and five hotspots of TWS negative trends were identified with trends between −8.94 mm yr−1 and −21.79 mm yr−1. TWS partitioning suggests that these negative trends are primarily attributed to the intensive overextraction of groundwater and warm-induced surface water loss, but the contributions of each hydrological component vary among hotspots. The results also indicate that the El Niño-Southern Oscillation, Arctic Oscillation and North Atlantic Oscillation are the three largest, dominant factors controlling the variations in TWS through the covariability effect on climate variables. However, seasonal results suggest a divergent response of hydrological components to TCs among seasons and hotspots. Our findings provide insights into changes in TWS and its components over the Asian and Eastern European regions, where there is a growing demand for food grains and water supplies.

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Changes in Terrestrial Water Storage During 2003–2014 and Possible Causes in Tibetan Plateau

Cited by 105 publications

References 126 publications

Understanding Terrestrial Water Storage Declining Trends in the Yellow River Basin

Understanding Terrestrial Water Storage Declining Trends in the Yellow River Basin

Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe

Widespread Decline in Terrestrial Water Storage and Its Link to Teleconnections across Asia and Eastern Europe

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