Journal of Hydrology-Regional Studies最新文献

{"title":"Depositional environment of shallow-marine arenites in the Northern Apennines (Italy) affects aquifer performance: an interpretive key to groundwater management in a climate change scenario","authors":"Maria Filippini ,&nbsp;Alessandro Amorosi ,&nbsp;Enrico Dinelli ,&nbsp;Stefano Segadelli ,&nbsp;Laura Landi ,&nbsp;Tommaso Casati ,&nbsp;Alessandro Gargini","doi":"10.1016/j.ejrh.2025.102183","DOIUrl":"10.1016/j.ejrh.2025.102183","url":null,"abstract":"<div><h3>Study Region</h3><div>The Pantano Formation arenitic aquifer, in the Northern Apennine chain between Modena and Bologna (Italy).</div></div><div><h3>Study Focus</h3><div>through an array of geological, hydrogeological and geochemical investigations across distinct members of the Miocene Pantano Formation, this study aims at assessing the influence of depositional environments on aquifer performance (i.e., recharge and storage capacity, spring discharge). As the investigated aquifer represents a key resource for drinking water in the Northern Apennines, interpreting depositional environments might drive future applications in areas understudied from a hydrogeological viewpoint.</div></div><div><h3>New Hydrological Insights for the Region</h3><div>this study emphasizes the critical role of depositional environments in shaping the aquifer characteristics of the Pantano Formation. Sedimentary facies formed in relatively proximal environments, close to the paleo shoreline, exhibit higher bulk hydraulic conductivity, recharge potential, and storage than those formed in a more distal (open shelf) position, resulting in discharge through larger springs more resilient to droughts. These differences are attributed to depositional factors, such as textural heterogeneity and carbonate content facilitating karst dissolution. Moreover, numerical modeling indicated the feasibility of sustainable groundwater withdrawal though pumping, especially in nearshore sediments, offering a mitigation measure for future water supply challenges during droughts. Therefore, nearshore deposits cropping out in other sectors of the Northern Apennines hold a great potential to mitigate groundwater shortages during droughts and should be the object of further hydrogeological investigations.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102183"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial-temporal analysis of flood patterns in semiarid river catchments of SE Iberian Peninsula since CE 1850","authors":"Carlos Sánchez-García ,&nbsp;Lothar Schulte","doi":"10.1016/j.ejrh.2024.102149","DOIUrl":"10.1016/j.ejrh.2024.102149","url":null,"abstract":"<div><h3>Study region</h3><div>The province of Almería, southeastern Iberian Peninsula.</div></div><div><h3>Study focus</h3><div>The main objective of this study was to analyse the evolution of the spatial distribution and the frequency of floods in the four main basins of the Province of Almería since 1850. A database of the main historical floods reported in written historical documents in the Almanzora, Andarax, Antas and Aguas river basins was compiled, and information on the damage caused by the floods was retrieved from 15 historical archives, allowing an understanding of how floods have behaved over the past 170 years and how they are likely to behave in the near future.</div></div><div><h3>New hydrological insights for the region</h3><div>The river basins of the province of Almería are drained by ephemeral flows mostly related to episodes of heavy rainfall or to long-lasting rainfall attributed to low pressure systems that can persist for several days. The region's climatic, topographical, and lithological characteristics make this region prone to floods that lead to economic damage in the floodplains. In total, more than 106 flood events were recorded between 1850 and 2020 throughout the study area. Since 1850, the frequency of floods has increased and they have been heterogeneously spatially distributed. Three flood-rich periods have occurred, from 1870 to 1900 (43 floods), from 1966 to 1982 (18 floods), and from 2000 to 2020 (19 floods), each with different characteristics in terms of the distribution of flood events. Specifically, the period 1870–1900 shows a higher frequency of ordinary, extraordinary, and catastrophic floods compared to the other flood-rich periods, with a very high trend of events observed across all the studied basins. Three factors explain the changes in the frequency and the spatial distribution of the flood events: a) an increase in the frequency of ordinary flood events; b) new construction in highly vulnerable areas and in coastal areas close to river mouths; and c) changes in land use. Therefore, studies on low-frequency floods should be taken into account in regional planning, and the organization of flood-prone basins should be rethought as they are developed. This reorganization is needed particularly in regions sensitive to the consequences of climate change, such as the Mediterranean and arid and semi-arid areas.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102149"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Disparity in low-flow trends found in snowmelt-dominated mountain rivers of western Canada","authors":"Paul H. Whitfield ,&nbsp;John W. Pomeroy","doi":"10.1016/j.ejrh.2024.102144","DOIUrl":"10.1016/j.ejrh.2024.102144","url":null,"abstract":"<div><h3>Study region</h3><div>A complex mountainous region that is the source of water for the major river basins of northwestern North America.</div></div><div><h3>Study focus</h3><div>Trends in magnitudes and timing of annual low flows in relation to basin characteristics and climate indices in 106 nival rivers in British Columbia and Alberta,</div></div><div><h3>New hydrological insights</h3><div>Two types of significant trends in annual low flows were observed: [1] decreased magnitude and earlier occurrence in the warmer southwest, or [2] increased magnitude and later occurrence in the colder, higher elevation north and east. These differences are associated with differences in the form of nival regime from the reliable cold winter and spring freshet of the north and east to regimes with fall and mid-winter melts, often associated with rainfall, in the south and west. Basin location and regional climate, rather than individual basin attributes such as elevation or hypsometry drove these differences in streamflow regimes and their responses to climate variations and warming. Atmospheric teleconnections had strong effects that corresponded to the regime and spatial differences in trends and were dominated by positive relationships between magnitude and timing with long duration indices (AMO &amp; PDO), and negative relationships with short duration climate indices (NAO &amp; SOI). The pattern of these relationships mimicked the temporal trends over time, positive with magnitude and timing in the northeast, and negative in the southwest.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102144"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China","authors":"Tianze Pang ,&nbsp;Ying Zhao ,&nbsp;María Poca ,&nbsp;Jianjun Wang ,&nbsp;Hongchen Li ,&nbsp;Jinzhao Liu","doi":"10.1016/j.ejrh.2024.102153","DOIUrl":"10.1016/j.ejrh.2024.102153","url":null,"abstract":"<div><h3>Study region</h3><div>The hilly area of Shandong Peninsula is a pivotal apple-producing region in China. However, the precise water sources utilized by the apple trees for transpiration remain poorly understood in this region.</div></div><div><h3>Study focus</h3><div>Here we quantify the water sources used by apple trees in this area using stable isotopic tracing methods. Through on-field studies in a representative apple orchard and subsequent isotopic assessments, the primary water sources tapped by the apple trees were identified in three plots with contrasting soil characteristics and through 5 days of sub daily sampling.</div></div><div><h3>New hydrological insights for the region</h3><div>Our results show that apple trees have a marked preference for soil water centered at the 60 cm depth, with more deep water use at plots without weathered layers. Notably, the isotopic compositions of the xylem water leaned more towards signatures of soil water, rather than immediate irrigation water or groundwater. Given the irrigation water used to be the dominant water source recharging into soil, the weak contribution of irrigation water to plant would be attributed to the high soil evaporation rates during the growth phase, which strongly alter the isotopic composition of irrigation water in shallow soil layers. These insights boosted our comprehension of water sourcing mechanisms in the sloped orchard ecosystems in the Shandong Peninsula and lay the groundwork for deeper exploration into the irrigation ratio to rainwater utilized by apple trees in comparable regions.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102153"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia","authors":"Qin Yang ,&nbsp;Xiangying Li ,&nbsp;Donghui Shangguan ,&nbsp;Tianding Han","doi":"10.1016/j.ejrh.2024.102107","DOIUrl":"10.1016/j.ejrh.2024.102107","url":null,"abstract":"<div><h3>Study area</h3><div>Urumqi Glacier No.1 Catchment in central Asia.</div></div><div><h3>Study focus</h3><div>Chemical weathering at the basin scale is important process for understanding the feedback mechanism of the carbon cycle and climate change. This study mainly used the actual sampling data in 2013, 2014, and 2016, and the first collection from the literature in same catchment to analyze the seasonal and interannual characteristics of meltwater runoff, as well as cation denudation rate (CDR).</div></div><div><h3>New hydrological insights for the study region</h3><div>The dominant ions of meltwater runoff are Ca^2 +, HCO₃^-, and SO₄^2-, which are mainly derived from calcite dissolution, feldspar weathering and sulfide oxidation. Meltwater runoff at Urumqi Glacier No.1 has higher concentrations of Ca²⁺ and lower concentrations of HCO₃^- than that from glaciers in Asia. Compared to 2006 and 2007, cation concentrations increased in 2013 and 2014, while SO₄^2- concentration decreased. The daily ion concentration has seasonality and exhibits a negative relationship with discharge. Daily CDR is positively related to discharge and temperature. Annual CDR values range from 12.34 to 19.04 t/km²/yr in 2013, 2014, and 2016, which are 1–1.7 times higher than those in 2006 and 2007 and higher than some glaciers in Asia. These results indicate that chemical weathering rate in the Urumqi Glacier No.1 catchment has increased with climate warming, and it is stronger than that of some glaciers in the Tibetan Plateau and surroundings.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102107"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatiotemporal variations of water levels and river-lake interaction in the Poyang Lake basin under the extreme drought","authors":"Hexiang Chen ,&nbsp;Guangqiu Jin ,&nbsp;Hongwu Tang ,&nbsp;Jinran Wu ,&nbsp;You-Gan Wang ,&nbsp;Zhongtian Zhang ,&nbsp;Yanqing Deng ,&nbsp;Siyi Zhang","doi":"10.1016/j.ejrh.2024.102165","DOIUrl":"10.1016/j.ejrh.2024.102165","url":null,"abstract":"<div><h3>Study region</h3><div>Poyang Lake, China's largest freshwater lake</div></div><div><h3>Study focus</h3><div>The water level variations of Poyang Lake and the combined effects of the upstream rivers and the Yangtze River during extreme drought events are not yet fully understood. In this study, the temporal and spatial variations of Poyang Lake's water level and the river-lake interactions were investigated using mathematical statistics and regression models.</div></div><div><h3>New hydrological insights for the region</h3><div>Extreme drought occurrences in Poyang Lake have increased over fourfold compared to previous periods since the 21st century. The 2022 extreme drought represents the most intense, severe, and prolonged drought event in Poyang Lake since 1956. It is characterized by unprecedented low water levels during both the flood and dry seasons. The study further emphasizes the changes in river-lake interactions during the extreme drought, indicating a reduced blocking effect of the Yangtze River on Poyang Lake during the flood season and a diminished emptying effect during the retreating and dry seasons. Compared to multi-year averages, reduced upstream discharge, Yangtze River flow, and the Three Gorges Dam operations during this drought contributed 23.68 %, 38.10 %, and 38.22 % respectively to the water level decline. During the drought period, both natural precipitation-driven flow increase in upstream rivers and water released from the dam provided short-term relief, though insufficient to fully mitigate the drought conditions.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102165"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the nonlinear transition relationship between water resources consumption and economic development in Heilongjiang province based on system dynamics","authors":"Meiyun Tao ,&nbsp;Youzhu Zhao ,&nbsp;Qiuxiang Jiang,&nbsp;Zilong Wang,&nbsp;Yunxing Wu","doi":"10.1016/j.ejrh.2025.102193","DOIUrl":"10.1016/j.ejrh.2025.102193","url":null,"abstract":"<div><h3>Study region</h3><div>Heilongjiang Province, north-eastern region of China.</div></div><div><h3>Study focus</h3><div>Water resources are important resources for steady economic and social progress, and the coordination between water resources consumption and economic development is the prerequisite for ensuring sustainable regional development. This study aims to promote the coordination of water resources consumption and economic development in Heilongjiang Province. In this study, system dynamics was used as a technical tool to simulate the water consumption and economic benefits of Heilongjiang Province from 2000 to 2050. The nonlinear trend of water resources consumption and economic development in Heilongjiang Province was explored by using the Sequential T-Test analysis of regime shifts (STARS) and the threshold generalized additive models (TGAM) for the first time.</div></div><div><h3>New hydrological insights for the region</h3><div>The results indicated the following: (1) No nonlinear changes in agricultural water footprint (WF_A) were detected in Heilongjiang Province. Both the industrial water footprint (WF_I) and the domestic water footprint (WF_D) showed one nonlinear change in 2018. Two nonlinear changes in ecological water footprint (WF_E) in 2021 and 2033. (2) The WEF in Heilongjiang Province fluctuated, reaching a peak of 8.32 × 10⁷ hm² in 2007 and a low of 4.31 × 10⁷ hm² in 2019. The water ecological footprint (WEF) per 10⁴ yuan GDP decreased from 2.39 hm²/10⁴ yuan to 0.29 hm²/10⁴ yuan. (3) Thresholds in the total WF and WEF with GDP were detected in 2010 and 2017. (4) The decoupling of the WF and WEF from economic development in Heilongjiang Province was mostly in intermediate optimal state, but with higher water consumption. The findings provide valuable insights for accelerating the green transformation of Heilongjiang Province and fostering the economy's and water resources' outstanding development.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102193"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating combinations of rainfall datasets and optimization techniques for improved hydrological predictions using the SWAT+ model","authors":"Mahesh R. Tapas ,&nbsp;Randall Etheridge ,&nbsp;Thanh-Nhan-Duc Tran ,&nbsp;Manh-Hung Le ,&nbsp;Brian Hinckley ,&nbsp;Van Tam Nguyen ,&nbsp;Venkataraman Lakshmi","doi":"10.1016/j.ejrh.2024.102134","DOIUrl":"10.1016/j.ejrh.2024.102134","url":null,"abstract":"<div><h3>Study Region</h3><div>This study focuses on the Cape Fear and Tar-Pamlico watersheds in North Carolina, which are characterized by diverse hydrological conditions, varied land use, soil types, and hydrological characteristics.</div></div><div><h3>Study Focus</h3><div>The primary goal of this study is to examine the combined effects of three satellite precipitation products (SPPs) — ERA-5, gridMET, and GPM IMERG — along with three autocalibration techniques — DDS, GLUE, and LHS — on SWAT+ river flow predictions. Flow accuracy was assessed using three evaluation metrics: NSE, KGE, and R².</div></div><div><h3>New Hydrological Insights for the Region</h3><div>Key findings revealed that five SWAT+ parameters (cn2, revap_co, flo_min, revap_min, and awc) were consistently sensitive across all SPPs and watersheds, with rainfall products exerting a greater influence on simulated river flow than optimization techniques. Among the SPPs, GPM IMERG performed the best, followed by ERA-5 and gridMET, while NSE was more responsive to changes in SPPs and calibration methods than KGE and R². For the Cape Fear and Tar-Pamlico watersheds, the study highlighted SWAT+ 's challenges in predicting base flow for groundwater-driven systems and demonstrated the potential of optimization techniques to improve flow simulations despite poor satellite-gauge rainfall correlation. The combination of the GPM IMERG dataset and the GLUE method proved most effective, offering valuable guidance for selecting optimal datasets and methods to enhance prediction accuracy in complex watersheds.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102134"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precipitation phase shift variations under a warming climate over the Qilian Mountain, China in the 21st century","authors":"Mingyu Dou,&nbsp;Keqin Duan,&nbsp;Rong Chen,&nbsp;Liang Li","doi":"10.1016/j.ejrh.2024.102151","DOIUrl":"10.1016/j.ejrh.2024.102151","url":null,"abstract":"<div><h3>Study region</h3><div>Qilian Mountains (QLM), China</div></div><div><h3>Study focus</h3><div>Precipitation phase shift over the mountain profoundly impacts glacier surface mass balance, seasonal river runoff, and surface albedo. However, it remains unclear how these shifts manifest in the Qilian Mountains under global warming. Here, we examined the variations of rainfall and snowfall from 1961 to 2020 based on the ERA5-Land data and then projected the length of potential snowfall days (LPSD) during 2021–2100 using the simulations from the Coupled Model Intercomparison Project Phase 6 over the QLM.</div></div><div><h3>New hydrological insights for the region</h3><div>The results showed that the annual mean temperature increased at a rate of 0.25 °C/10a, resulting in rainfall increasing and snowfall decreasing at 5.61 and −1.89 mm/10a, respectively. However, the temperature faced a faster increase in 0.28 [0.12–0.45] and 0.82 [0.45–1.20] °C/10a under the SSP2–4.5 and SSP5–8.5 from 2020 to 2100. The LPSD would shorten dramatically with 3.00 [4.54–1.44] and 8.84 [13.02–4.66] days/10a, leading to an approximate decline of 35 [12.44–56.60] and 74 [34.19–113.96] days in LPSD at the end of the 21st century relative to 2001–2020, respectively. Notably, the summer snowfall decreased dramatically at a rate of −1.95 mm/10a, while the rainfall increased at 8.33 mm/10a from 1961 to 2020 over 4000 m.a.s.l. The LPSD would be absent in summer by mid-century under the SSP5–8.5 scenario, implying that snowfall would totally shift to rainfall. This potential snowfall-rainfall shift would strongly threaten the sustainable usage of water resources in the oasis downstream of QLM.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102151"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Permanent aquifer storage loss from long-term groundwater withdrawal: A case study of subsidence in Bandung (Indonesia)","authors":"Michelle Rygus ,&nbsp;Marco Bianchi ,&nbsp;Alessandro Novellino ,&nbsp;Ekbal Hussain ,&nbsp;Ahmad Taufiq ,&nbsp;Steven Reinaldo Rusli ,&nbsp;Dwi Sarah ,&nbsp;Claudia Meisina","doi":"10.1016/j.ejrh.2024.102129","DOIUrl":"10.1016/j.ejrh.2024.102129","url":null,"abstract":"<div><h3>Study Region</h3><div>In this study, the focus is on the Bandung groundwater basin in Indonesia, where industrial groundwater exploitation has led to declining groundwater levels and consequent land subsidence.</div></div><div><h3>Study Focus</h3><div>A highly parameterized three-dimensional hydro-geomechanical model was developed for the Bandung groundwater basin. The region faces challenges due to scarce hydrogeological data, necessitating the use of satellite-based Interferometric Synthetic Aperture Radar (InSAR) techniques to supplement the parameterization of numerical groundwater models. By calibrating the model against InSAR-derived land displacement measurements, the study addressed the lack of detailed historical pumping data and estimated past groundwater extraction volumes. The model was also used to forecast future subsidence and evaluate aquifer storage changes until 2050 under various pumping scenarios. Our study is one of the first examples of using satellite data with geomechanical models to constrain groundwater extraction rates and emphasises the importance of remote sensing data in groundwater resource management, and the irreversible impact of unsustainable groundwater extraction, which has implications for long term water security.</div></div><div><h3>New Hydrological Insights for the Region</h3><div>The study found that continued industrial groundwater extraction has resulted in permanent aquifer storage loss, with significant implications for long-term water security. Our simulated subsidence rates peaked at 16.4 cm/yr over the 1950–2020 period, with a maximum cumulative subsidence of 6.9 m. Continued industrial groundwater extraction, primarily from the deeper, confined aquifer, has resulted in permanent aquifer storage loss totalling 7.2 km³. Our model projections indicate that subsidence will persist, with continued industrial extraction potentially leading to up to 5.6 m of additional subsidence and 11.1 km³ of aquifer storage loss by 2050. Reducing industrial groundwater use by 30 % could slightly reduce further subsidence (5.0 m) and aquifer storage loss (9.2 km³) by 2050.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"57 ","pages":"Article 102129"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}