Using Satellite-Based Terrestrial Water Storage Data: A Review

Surveys in Geophysics, Год журнала: 2023, Номер 44(5), С. 1489 - 1517

Опубликована: Янв. 13, 2023

Land water storage plays a key role for the Earth's climate, natural ecosystems, and human activities. Since launch of first Gravity Recovery Climate Experiment (GRACE) mission in 2002, spaceborne observations changes terrestrial (TWS) have provided unique, global perspective on human-induced freshwater resources. Even though they become much used within broader Earth system science community, space-based TWS datasets still incorporate important case-specific limitations which may not always be clear to users familiar with underlying processing algorithms. Here, we provide an accessible illustrated overview measurement concept, main available data products, some frequently encountered technical terms concepts. We summarize concrete recommendations how use combination other hydrological or climatological datasets, guidance avoid possible pitfalls. Finally, applications GRACE fields hydrology climate science. This review is written intention supporting future research facilitating satellite-based interdisciplinary contexts.

Язык: Английский

---

Decoupling of surface water storage from precipitation in global drylands due to anthropogenic activity

Nature Water, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract The availability of surface water in global drylands is essential for both human society and ecosystems. However, the long-term drivers change storage, particularly those related to anthropogenic activities, remain unclear. Here we use multi-mission remote sensing data construct monthly time series storage changes from 1985 2020 105,400 lakes reservoirs drylands. An increase 2.20 km 3 per year found primarily due construction new reservoirs. For old (constructed before 1983), conversely, trend minor when aggregated globally, but they dominate trends 91% individual dryland basins. Further analysis reveals that these bodies are linked factors—including human-induced warming water-management practices—rather than precipitation changes, as previously thought. These findings reveal a decoupling drylands, raising concerns about societal ecosystem sustainability.

Язык: Английский

---

Disentangling Ecological Restoration's Impact on Terrestrial Water Storage

Geophysical Research Letters, Год журнала: 2025, Номер 52(4)

Опубликована: Фев. 12, 2025

Abstract Large‐scale ecological restoration (ER) in semiarid regions is often associated with substantial terrestrial water storage (TWS) depletion. This study challenged previous estimates by demonstrating the critical importance of considering other human activities when assessing ER impacts on TWS. Using a novel analytical framework integrating GRACE satellite data and ground observations, we analyzed TWS changes China's Mu Us Sandyland under two scenarios: without mining farming activities. Our results show that consumed at an average rate 11.7 ± 12.2 mm yr −1 from 2003 to 2022. Neglecting led 251% overestimation ER's effect provided more nuanced understanding resource dynamics restored ecosystems, emphasizing need for comprehensive approaches assessments informing sustainable land management strategies globally.

Язык: Английский

---

Combining downscaled-GRACE data with SWAT to improve the estimation of groundwater storage and depletion variations in the Irrigated Indus Basin (IIB)

The Science of The Total Environment, Год журнала: 2022, Номер 838, С. 156044 - 156044

Опубликована: Май 19, 2022

Язык: Английский

---

Measuring glacier mass changes from space—a review

Reports on Progress in Physics, Год журнала: 2023, Номер 86(3), С. 036801 - 036801

Опубликована: Янв. 3, 2023

Glaciers distinct from the Greenland and Antarctic ice sheets are currently losing mass rapidly with direct severe impacts on habitability of some regions Earth as glacier meltwater contributes to sea-level rise alters regional water resources in arid regions. In this review, we present different techniques developed during last two decades measure change space: digital elevation model (DEM) differencing stereo-imagery synthetic aperture radar interferometry, laser altimetry space gravimetry. We illustrate their respective strengths weaknesses survey a large Arctic body, Vatnajökull Ice Cap (Iceland) for steep glaciers Everest area (Himalaya). For entire regions, estimates sometimes disagree when similar technique is applied by research groups. At global scale, these discrepancies result varying 20%-30%. Our review confirms need more thorough inter-comparison studies understand origin differences better constrain changes and, ultimately, past future contribution rise.

Язык: Английский

---

Groundwater recharge estimation using in-situ and GRACE observations in the eastern region of the United Arab Emirates

The Science of The Total Environment, Год журнала: 2023, Номер 867, С. 161489 - 161489

Опубликована: Янв. 10, 2023

The intensive agricultural expansion and rapid urban development in Abu Dhabi Emirate, United Arab Emirates (UAE) have resulted a major decline local regional groundwater levels. By using the latest release (RL06) of Gravity Recovery Climate Experiment (GRACE) satellite measurements Global Land Data Assimilation System (GLDAS) products, storage change was computed compared with time series in-situ monitoring wells over period 2010–2016. RL06 GRACE products from Jet Propulsion Laboratory (JPL), University Texas Center for Space Research (CSR), German Geosciences (GFZ), JPL mass concentrations (MASCON) were assessed shown satisfactory agreements wells. MASCON reflected better than other (R = 0.5, lag =1 month, RMSE 13 mm). recharge is estimated study area method that considers multi components rainfall, irrigation return flow internal fluxes. results show between GRACE-derived estimates are highly agreeable (e.g., R2 0.91, 1.5 Mm3 to 7.8 Mm3, Nash-Sutcliff Efficiency 0.7). Using Mann-Kendall trend test Sen's slope, analyses policies, number wells, farm areal derived helped validate emphasize importance regulations sustainable resources. impacts subsidy cuts after 2010 can be captured data eastern region Emirate. linear anomaly obtained 2003 −6.36 ± 0.6 mm/year while it showed −1.2 cut. proposed approach has potential application estimating arid regions where limited or absent.

Язык: Английский

---

Drought-heatwave compound events are stronger in drylands

Weather and Climate Extremes, Год журнала: 2023, Номер 42, С. 100632 - 100632

Опубликована: Ноя. 22, 2023

Climate change is exacerbating the occurrence of compound droughts and heatwaves (CDHWs), which pose a serious threat to human health socio-economic development. Using daily maximum temperature (Tmax) monthly self-calibrating Palmer drought severity index (sc-PDSI) dataset, The evolution patterns CDHWs wet-heatwave events, dominant drivers relative contributions in drylands humid areas from 1961 2020 were compared analyzed. results show that types are stronger than areas, growth rate was almost twice greater multi-year average intensity events by up 2.4 times. Moreover, has increased significantly past period (1961–1990) recent warm (1991–2020), heatwave threshold about 5 °C. In most drylands, contribution dominates, whereas does. compounding effects may exacerbate regionally pronounced taking into account optimal lags. study findings could provide scientific technological support actively address global climate risks.

Язык: Английский

---

Groundwater level forecasting in a data-scarce region through remote sensing data downscaling, hydrological modeling, and machine learning: A case study from Morocco

Journal of Hydrology Regional Studies, Год журнала: 2023, Номер 50, С. 101569 - 101569

Опубликована: Ноя. 10, 2023

The upstream part of the Essaouira basin, a data-scare region in Morocco, Northwestern Africa. scarcity hydro-climate data is significant challenge found several regions worldwide, where qualitative and quantitative water resource information remains limited. Estimating predicting groundwater levels (GWL) such areas producing knowledge for effective management. To address this issue, present study aimed to use Soil Water Assessment Tool (SWAT) model conjunction with downscaled total storage (TWS) (9 km) obtained from Gravity Recovery And Climate Experiment (GRACE) machine learning techniques, specifically random forest (RF) support vector (SVM), estimate predict variation GWL. This constitutes first its kind area; SWAT was set up 10 years, warm-up period 2000 2001, calibration 2002 2007, validation 2008 2010. statistical indices (Coefficient Determination (R²) ≥ 0.73, R² 0.78, Nash–Sutcliffe efficiency coefficient (NSE) 0.67, NSE 0.80 respectively validation) highlight correlation, implying model's capability faithfully reproduce streamflow. TWS demonstrates an impressive ability identify monitor fluctuations Using algorithms (RF SVR), prediction GWL yielded satisfactory results, = 0.78 root mean square error (RMSE) 0.33, 0.51 RMSE 0.49 RF SVR, respectively. Despite some limitations, our approach provided promising results prediction, possibility expanding other data-scarce regions.

Язык: Английский

---

Minimizing uncertainties in climate projections and water budget reveals the vulnerability of freshwater to climate change

One Earth, Год журнала: 2024, Номер 7(1), С. 72 - 87

Опубликована: Янв. 1, 2024

Global water scarcity threatens agriculture, food security, and human sustainability. Hence, understanding changes in terrestrial storage (WS) is crucial. By utilizing climate models, reanalysis, satellite data, we demonstrate the effectiveness of multivariate bias correction technique facilitating precise WS representation while ensuring robust budget closure. Historical data indicate seasonal changes, where forested basins exhibit a surplus December-January-February season, with reversal June-July-August-September season. Non-forested display varied patterns influenced by geographical location land use type. Future projections increased deficits most Southern Hemisphere under middle-road (SSP 245) scenario wetter conditions regional rivalry 370) scenario. Weather systems governing vary season basin, resulting inconsistent moisture intake into basins. These findings underscore intricate interplay between transport, characteristics, WS, highlighting need to understand these complex interactions for effective resource management strategies changing climates.

Язык: Английский

---

Changes and drivers of long-term land evapotranspiration in the Yangtze River Basin: A water balance perspective

Journal of Hydrology, Год журнала: 2025, Номер unknown, С. 132763 - 132763

Опубликована: Фев. 1, 2025

Язык: Английский

---