Journal of Hydrology-Regional Studies最新文献_第7页

Estimating operational costs for enhanced continuity in water supply and sanitation services: An inverse data envelopment analysis approach in Chilean utilities 估算加强供水和卫生服务连续性的运营成本：智利公用事业的逆数据包络分析方法

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-15 DOI: 10.1016/j.ejrh.2024.102008

Manuel Mocholi-Arce , Alexandros Maziotis , Ramón Sala-Garrido , María Molinos-Senante

{"title":"Estimating operational costs for enhanced continuity in water supply and sanitation services: An inverse data envelopment analysis approach in Chilean utilities","authors":"Manuel Mocholi-Arce , Alexandros Maziotis , Ramón Sala-Garrido , María Molinos-Senante","doi":"10.1016/j.ejrh.2024.102008","DOIUrl":"10.1016/j.ejrh.2024.102008","url":null,"abstract":"<div><h3>Study region</h3><div>The largest 23 water utilities in Chile providing water and sanitation services to 97.9 % of total urban customers.</div></div><div><h3>Study focus</h3><div>This study introduces an innovative methodological framework based on inverse data envelopment analysis technique to quantify the additional operational costs required for water utilities to enhance their water supply and sanitation continuity while maintaining their techno-economic efficiency. This framework is pivotal for setting realistic continuity targets and assessing potential impacts on water and sanitation tariffs, thereby aiding in policy and operational planning within the water sector.</div></div><div><h3>New hydrological insights for the region</h3><div>The analysis was performed across four distinct continuity scenarios revealing substantial cost variability contingent on continuity targets, current service levels, and the efficiency of each utility. Results showed a median operational cost increase that varied from 28.41 % in the most stringent scenario to just 0.27 % in the most lenient. The financial implications of meeting these costs through water and sanitation tariffs would necessitate a median monthly increase in water bills, ranging from $17.24 per household in the most demanding scenarios to only $0.01 per household in the more lenient scenarios. This research provides a valuable tool for water sector regulators and managers, enabling informed decision-making by balancing service improvement objectives with economic considerations and customer willingness to pay for enhanced service continuity.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102008"},"PeriodicalIF":4.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438305","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}

引用次数: 0

Evaluating the impact of coal seam roof groundwater using variable weights theory: A special emphasis on skylight-type water inrush pattern 利用可变权重理论评估煤层顶板地下水的影响：特别强调天窗型涌水模式

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-15 DOI: 10.1016/j.ejrh.2024.102009

Shihao Meng , Qiang Wu , Yifan Zeng , Aoshuang Mei , Guoqing Yang , Zhaolai Hua , Lei Yang , Yao Zhang

{"title":"Evaluating the impact of coal seam roof groundwater using variable weights theory: A special emphasis on skylight-type water inrush pattern","authors":"Shihao Meng , Qiang Wu , Yifan Zeng , Aoshuang Mei , Guoqing Yang , Zhaolai Hua , Lei Yang , Yao Zhang","doi":"10.1016/j.ejrh.2024.102009","DOIUrl":"10.1016/j.ejrh.2024.102009","url":null,"abstract":"<div><h3>Study region</h3><div>This study is based in the rapidly developing large-scale coal base located in Northwest China.</div></div><div><h3>Study focus</h3><div>This study focuses on addressing a critical yet overlooked aspect of large-scale coal resource development in arid regions: the impact on coal seam roof groundwater. Recognizing the paramount importance of safeguarding groundwater resources for sustainable mining practices, the research introduces a novel concept of “skylight-type secondary water inrush pattern” and develops a comprehensive evaluation methodology to quantify its extent.</div></div><div><h3>New hydrological insights for the region</h3><div>The study presents groundbreaking hydrological insights into the behavior of groundwater systems impacted by coal mining in arid regions. It reveals that secondary water inrush pattern, a phenomenon driven by hydrodynamics, extends beyond the immediate mechanical footprint of mining, posing significant challenges for groundwater resource management. This research underscores the importance of considering not just the structural alterations to aquifers but also the broader hydrological consequences of mining activities. By integrating multivariate geological information with a variable weights theory, the developed evaluation method provides a nuanced understanding of how mining alters groundwater abundance and flow patterns. These new insights challenge traditional approaches and offer a scientific basis for designing effective strategies to mitigate water damage, manage mine groundwater, and promote sustainable mining practices in arid environments.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102009"},"PeriodicalIF":4.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434198","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}

引用次数: 0

Groundwater dynamics clustering and prediction based on grey relational analysis and LSTM model: A case study in Beijing Plain, China 基于灰色关系分析和 LSTM 模型的地下水动态聚类与预测：中国北京平原案例研究

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-15 DOI: 10.1016/j.ejrh.2024.102011

Yan Zhou , Qiulan Zhang , Guoying Bai , Hongyan Zhao , Guanyin Shuai , Yali Cui , Jingli Shao

{"title":"Groundwater dynamics clustering and prediction based on grey relational analysis and LSTM model: A case study in Beijing Plain, China","authors":"Yan Zhou , Qiulan Zhang , Guoying Bai , Hongyan Zhao , Guanyin Shuai , Yali Cui , Jingli Shao","doi":"10.1016/j.ejrh.2024.102011","DOIUrl":"10.1016/j.ejrh.2024.102011","url":null,"abstract":"<div><h3>Study region</h3><div>Beijing Plain, China</div></div><div><h3>Study focus</h3><div>The traditional zoning of groundwater systems relies on lithological characteristics and hydraulic connections. However, the influence of climate change and human activities has led to the emergence of diverse dynamic patterns within these systems. Additionally, the differences in groundwater dynamic characteristics are often ignored when modeling with machine learning methods. In this study, a new clustering method named GRA-CLU was proposed to classify dynamic types of groundwater. Then, regional models are built using LSTM based on the dynamic zoning, aiming to incorporate hydrogeological significance into the pure data-driven model.</div><div>New hydrological insights for the region: The GRA-CLU method classified the study area into six groundwater dynamic types. Compared with the traditional hydrogeological units, the new zoning result identified two dynamic types that have never been considered: urban influence zone and mountain-plain junction zone where surface water interacts with groundwater. Through analysis, the significant rise of groundwater levels in 2021 was more influenced by heavy rainfall events rather than human activities. This study further explored the performance of LSTM regional models based on the six dynamic zones. The results indicated that the NSE of models increased by 5.7–50.0 %, the improvement was more obvious in zones with irregular fluctuations. The RMSE decreased by 31.5–59.8 %, particularly noticeable in zones with regular annual fluctuations and large samples.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102011"},"PeriodicalIF":4.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434199","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}

引用次数: 0

Unrevealing the water-use strategies for typical ecological restoration plants and cash crops in the Eastern Chinese Loess Plateau region 揭示中国东部黄土高原地区典型生态恢复植物和经济作物的用水策略

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-14 DOI: 10.1016/j.ejrh.2024.102013

Congjian Sun , Caixin Gao , Wei Chen

{"title":"Unrevealing the water-use strategies for typical ecological restoration plants and cash crops in the Eastern Chinese Loess Plateau region","authors":"Congjian Sun , Caixin Gao , Wei Chen","doi":"10.1016/j.ejrh.2024.102013","DOIUrl":"10.1016/j.ejrh.2024.102013","url":null,"abstract":"<div><h3>Study region</h3><div>Four geomorphic types in the eastern Loess Plateau (ECLP).</div></div><div><h3>Study focus</h3><div>quantitatively study the water-use strategies of typical plants (ecological restoration plants, food crops) based on stable isotope technology.</div></div><div><h3>New hydrological insights for the region</h3><div>Significant spatial-temporal heterogeneity appeared in regional soil water content and stable isotopes, with more significant fluctuations in soil water isotope values appearing in the rocky mountain region. Regional tree growth (including natural and plantation forests) was mainly influenced by precipitation (35±14 %) and surface layer (0–40 cm depth) soil water (25±11 %) during April and June, whereas deep soil water gradually became the main water source (> 20 %) in autumn and winter. <em>A. Lavandulifolia</em> mainly uses surface soil water (> 23 %), and the proportion of deep soil water utilization has increased after September. Surface soil water (0–40 cm) was the primary water source for <em>T. aestivum</em> during the overwintering (> 16 %) and reviving periods (> 26 %), and <em>Z. mays</em> utilized the largest proportion of soil water from 0 to 20 cm depth layer during the seeding (> 60 %) and maturation stages (> 35 %). Collectively, the results of this study have important implications for sustainable vegetation protection and the optimal allocation of water resources in the arid region.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102013"},"PeriodicalIF":4.7,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434197","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}

引用次数: 0

Effective transboundary aquifer areas between Mexico and the United States: A border-wide approach 墨西哥和美国之间有效的跨界含水层区域：全边界方法

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-13 DOI: 10.1016/j.ejrh.2024.102003

Rosario Sanchez, Duncan Kikoyo, Luna Yang

{"title":"Effective transboundary aquifer areas between Mexico and the United States: A border-wide approach","authors":"Rosario Sanchez, Duncan Kikoyo, Luna Yang","doi":"10.1016/j.ejrh.2024.102003","DOIUrl":"10.1016/j.ejrh.2024.102003","url":null,"abstract":"<div><h3>Study Region</h3><div>This research is situated in the U.S-Mexico border region. It encompasses the geographical extension of the 28 transboundary aquifers located across the ten border states between the two countries.</div></div><div><h3>Study Focus</h3><div>This study aims to identify regions within the hydrogeological units shared across the U.S.-Mexico border that could be in a vulnerable condition due to groundwater overexploitation on either side of the border. The Effective Transboundary Aquifer Area (ETAA) approach attempts to represent those effective geographical areas of groundwater production within the geological boundaries of the aquifer, to prioritize vulnerable areas at a more refined and local scale. To identify ETAAs, this study uses well density well depth data to portray depth contours as a proxy for potential impacts of groundwater flows at transboundary level.</div></div><div><h3>New Hydrological Insights</h3><div>For planning and management purposes at binational scale and considering the constraints on data and research on transboundary aquifers, the ETAAs provide a more feasible and useful approach to assess the conditions of a shared resource at a more “localized” scale. This approach facilitates the integration of stakeholders’ perspectives and specific needs of the communities that overlay the ETAA. Results show the location and extension of the ETAAs across the complete U.S.-Mexico border identifying the most vulnerable and highly groundwater-dependent regions.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102003"},"PeriodicalIF":4.7,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434238","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}

引用次数: 0

Modified drought propagation under a changing environment: A case study in the Dongting Lake basin, China 变化环境下的改良干旱传播：中国洞庭湖流域案例研究

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-12 DOI: 10.1016/j.ejrh.2024.101986

Lina Jin , Tao Peng , Tianyi Fan , Vijay P. Singh , Qingxia Lin , Xiaohua Dong , Ji Liu , Jiali Guo , Dan Yu , Gaoxu Wang

{"title":"Modified drought propagation under a changing environment: A case study in the Dongting Lake basin, China","authors":"Lina Jin , Tao Peng , Tianyi Fan , Vijay P. Singh , Qingxia Lin , Xiaohua Dong , Ji Liu , Jiali Guo , Dan Yu , Gaoxu Wang","doi":"10.1016/j.ejrh.2024.101986","DOIUrl":"10.1016/j.ejrh.2024.101986","url":null,"abstract":"<div><h3>Study region</h3><div>Four sub-basins of the Dongting Lake basin (DLB), China.</div></div><div><h3>Study focus</h3><div>The “pre-post-disturbance” method was employed to assess the impact of environmental variation on propagation from meteorological drought (MD) to hydrological drought (HD) in the DLB. The study period was split into two sub-periods (i.e, the baseline and impacted periods) via breakpoints of annual runoff series. Additionally, we calculated the drought propagation characteristics in different periods using the run theory. Furthermore, based on copula function and conditional probability analysis, the transmission threshold of MD triggering HD was determined.</div></div><div><h3>New hydrological insights for the region</h3><div>(i) Compared with the baseline period, the severity of HD in the Li River (LR) and Yuan River (YR) increased by 0.5 % and 1.3 % during the impacted period, respectively, while that in the Zi River (ZR) and Xiang River (XR) decreased by −25.9 % and −31.6 %, respectively; (ii) Human activities have weakened the correlation between HD and MD, resulting in various patterns of propagation time in different sub-basins and seasons; (iii) As a whole, propagation threshold from MD to HD became larger during the impacted period, with an average change rate from 0.9 % to 195.5 %.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 101986"},"PeriodicalIF":4.7,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142419075","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}

引用次数: 0

A multidisciplinary approach for recharge areas definition in carbonate aquifers tested on the Apuan Alps regional system, NW Tuscany-Italy 在意大利托斯卡纳西北部阿普安阿尔卑斯山地区系统中测试碳酸盐含水层补给区定义的多学科方法

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-12 DOI: 10.1016/j.ejrh.2024.101981

Matia Menichini , Brunella Raco , Linda Franceschi , Marco Doveri

{"title":"A multidisciplinary approach for recharge areas definition in carbonate aquifers tested on the Apuan Alps regional system, NW Tuscany-Italy","authors":"Matia Menichini , Brunella Raco , Linda Franceschi , Marco Doveri","doi":"10.1016/j.ejrh.2024.101981","DOIUrl":"10.1016/j.ejrh.2024.101981","url":null,"abstract":"<div><h3>Study region</h3><div>Apuan Alps (NW-Tuscany, Central Italy).</div></div><div><h3>Study focus</h3><div>Definition of the hydrogeological conceptual model of carbonate aquifer systems in order to define their recharge areas, using a multidisciplinary and integrated approach that involves geochemistry and isotopic tools. The proposed approach was tested on the Apuan Alps carbonate aquifers that contain precious groundwater resources to be protected, but their management is difficult to carry out without a detailed knowledge. The study of the groundwater hydrodynamics in terms of pathways and extension is often difficult to perform using conventional hydrogeological surveys. Geochemistry and isotopic tool can therefore provide an important contribution. However, to use such tools it is necessary to provide a characterization of the infiltration waters through which the isotopic data of the main springs can be interpreted. The paper proposes a hydrogeological approach combined with geochemical methodologies and <sup>13</sup>C data of water and rock samples for selecting springs representative of local infiltration.</div></div><div><h3>New hydrological insights for the region</h3><div>An isotopic characterization of infiltration water was performed, and the definition of the vertical isotope gradient specific for the area of interest was defined. By crossing this gradient with the geological structures, morphology and hydrology features of the territory, the feeding areas of two of the most important karst springs in the Apuan Alps region were delimited, thus testing the proposed methodology.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 101981"},"PeriodicalIF":4.7,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142419168","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}

引用次数: 0

Sustainable groundwater regulation in typical irrigation areas of inland river basins based on ecological indicators and the MIKE-SHE hydrological model 基于生态指标和 MIKE-SHE 水文模型的内陆河流域典型灌区地下水可持续调控方法

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-10 DOI: 10.1016/j.ejrh.2024.102000

Chenyu Guo , Tie Liu , Yue Huang , Yaxuan Niu , Shamshodbek Akmalov , Feng Guo

{"title":"Sustainable groundwater regulation in typical irrigation areas of inland river basins based on ecological indicators and the MIKE-SHE hydrological model","authors":"Chenyu Guo , Tie Liu , Yue Huang , Yaxuan Niu , Shamshodbek Akmalov , Feng Guo","doi":"10.1016/j.ejrh.2024.102000","DOIUrl":"10.1016/j.ejrh.2024.102000","url":null,"abstract":"<div><h3>Study region</h3><div>The study area is located in the Nukus irrigation area on the lower reaches of the Amudarya River in Uzbekistan.</div></div><div><h3>Study focus</h3><div>The extensive agricultural land development has introduced a substantial amount of water resources into the irrigation area, leading to a significant rise in regional groundwater levels. Quantifying regional groundwater resource issues and achieving sustainable groundwater management under conditions of high spatiotemporal heterogeneity are key scientific issues for regional ecological protection. Thus, this study used the concept of ecological water level to quantify groundwater issues, used the MIKE-SHE hydrological model to conduct scenario simulations, formulated and subsequently evaluated a groundwater regulation plan with spatiotemporal attributes.</div></div><div><h3>New hydrological insights for the region</h3><div>Regional sustainable development groundwater level should be within the range of 1.78–2.78 m. During the irrigation and non-irrigation periods, the groundwater levels in approximately 84.3 % and 72.2 % of the study area respectively exceeded the upper and lower ecological water level limits. Under the background of gradually increasing groundwater fluctuations, it will pose a serious threat to regional ecology. Therefore, this paper established a monthly-scale groundwater zoning control plan, which can make the area of regional groundwater within the ecological water level reach 87.53 %. All research not only contributes to the protection of the local ecological environment but also provides valuable insights for water resources management in other regions.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102000"},"PeriodicalIF":4.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142419078","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}

引用次数: 0

Probability links between meteorological drought and hydrological drought from a 3D perspective 从三维角度看气象干旱与水文干旱之间的概率联系

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-10 DOI: 10.1016/j.ejrh.2024.102001

Xuan Luo , Nguyen Hao Quang , Hanyu Jin , Yi Zou , Xiaodong Wu , Yungang Li

{"title":"Probability links between meteorological drought and hydrological drought from a 3D perspective","authors":"Xuan Luo , Nguyen Hao Quang , Hanyu Jin , Yi Zou , Xiaodong Wu , Yungang Li","doi":"10.1016/j.ejrh.2024.102001","DOIUrl":"10.1016/j.ejrh.2024.102001","url":null,"abstract":"<div><h3>Study region</h3><div>Lower Mekong River Basin (LMRB), Southeast Asia</div></div><div><h3>Study focus</h3><div>The links between meteorological drought (MD) and hydrological drought (HD) from a 3D perspective have not been fully investigated. A 3D identification method was employed to identify MD and HD events in the LMRB. Response of HD to MD were evaluated using linear and nonlinear models. Furthermore, the occurrence probabilities and propagation thresholds (PTs) from MD to HD were examined by applying a copula joint distribution and conditional probability based on a Bayesian network (CPBN).</div></div><div><h3>New hydrological insights for the region</h3><div>A total of 81 MDs and 87 HDs were identified during 1950–2021. HDs had longer durations but affected a smaller area and were less severe than MDs, with their centroids mainly located in eastern Thailand. 46 pairs of MD-HD events were matched spatiotemporally, revealing that a HD event in typical drought years could be driven by multiple MD events. The duration, area, and severity of these drought pairs were optimally fitted using linear, 3P-power, and polynomial function models, respectively. Additionally, the occurrence probabilities of moderate, severe, and extreme HDs successively decreased under the same MD conditions. The PT from MD to HD increased with increasing severity levels of HDs. The study of the links between MD and HD from a 3D perspective provides a more comprehensive understanding of drought in the LMRB.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102001"},"PeriodicalIF":4.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142419167","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}

引用次数: 0

Exploring possible climate change amplification of warm-season precipitation extremes in the southeastern Alpine forelands at regional to local scales 从区域到地方尺度探讨气候变化对东南阿尔卑斯山前缘地区暖季极端降水的可能放大作用

IF 4.7 2区地球科学

Journal of Hydrology-Regional Studies Pub Date : 2024-10-10 DOI: 10.1016/j.ejrh.2024.101987

S.J. Haas , G. Kirchengast , J. Fuchsberger

{"title":"Exploring possible climate change amplification of warm-season precipitation extremes in the southeastern Alpine forelands at regional to local scales","authors":"S.J. Haas , G. Kirchengast , J. Fuchsberger","doi":"10.1016/j.ejrh.2024.101987","DOIUrl":"10.1016/j.ejrh.2024.101987","url":null,"abstract":"<div><h3>Study Region:</h3><div>Southeastern Alpine forelands, with the representative regions explored mainly located in Southeast Austria.</div></div><div><h3>Study Focus:</h3><div>Short duration extreme convective precipitation events (SDECPEs) are increasingly altered by climate change but such events are not properly detectable in reanalysis datasets like ERA5-Land. Data from the WegenerNet (WEGN) high-density station network and GeoSphere Austria’s INCA dataset provide higher resolution, making them more suitable for the investigation, but are available only for the most recent two decades. In this study we hence leverage the WegenerNet and INCA data for the high-resolution exploration of warm-season (Apr–Oct) SDECPEs and assess, through combination with (re)analysis data over 1961–2022, a potential climate-change-induced amplification of such sub-daily precipitation extremes. We prepared a SDECPE classification to this end and employ a new class of threshold-exceedance-amount (TEA) metrics for the long-term analysis.</div></div><div><h3>New hydrological insights for the region:</h3><div>Even though extreme hourly-scale precipitation is expected to increase with rising temperatures, we find that this strongly varies at local scales within the region. While some subregions show an amplification higher than the Clausius–Clapeyron relation would suggest, and beyond estimated natural variability, others exhibit a decrease in extreme precipitation. The inspected ratios between maximum and average hourly precipitation and the TEA metrics enabled deeper insights into the changes of these extremes. Also the vital need for long-term high-resolution precipitation observations was strongly evidenced.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 101987"},"PeriodicalIF":4.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142419077","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}

引用次数: 0