Journal of Hydrology-Regional Studies最新文献

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Analysis on spatiotemporal evolution and meteorological driving factors of future meteorological drought in Northwest China based on CMIP6 基于CMIP6的中国西北未来气象干旱时空演变及气象驱动因素分析
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-14 DOI: 10.1016/j.ejrh.2025.102513
Jianan Shan , Rui Zhu , Zhenliang Yin , Xiaoya Deng , Tingting Wang , Huaqing Yang , Wei Zhang
{"title":"Analysis on spatiotemporal evolution and meteorological driving factors of future meteorological drought in Northwest China based on CMIP6","authors":"Jianan Shan ,&nbsp;Rui Zhu ,&nbsp;Zhenliang Yin ,&nbsp;Xiaoya Deng ,&nbsp;Tingting Wang ,&nbsp;Huaqing Yang ,&nbsp;Wei Zhang","doi":"10.1016/j.ejrh.2025.102513","DOIUrl":"10.1016/j.ejrh.2025.102513","url":null,"abstract":"<div><h3>Study region</h3><div>Northwest China</div></div><div><h3>Study focus</h3><div>In arid and semi-arid regions, the future evolution and drivers of meteorological drought have received extensive attention. This study focuses on projecting the future annual and seasonal spatiotemporal changes of meteorological drought in Northwest China under the SSP1–2.6, SSP2–4.5, SSP3–7.0, and SSP5–8.5 scenarios by calculating the drought indices SPEI12, SPEI03 and applying the run theory based on the output data of 21 GCMs associated with the Coupled Model Intercomparison Project 6 (CMIP6) and the data from 152 meteorological stations. We further focused on Spearman correlation coefficient and convergent cross mapping (CCM) to identify the relationship between meteorological elements and SPEI (Standardized Precipitation Evapotranspiration Index), and used multiple linear regression to quantitatively analyze the contribution of drivers to SPEI changes.</div></div><div><h3>New hydrological insights for the region</h3><div>The temperature, precipitation, evapotranspiration, and solar radiation in Northwest China exhibit a significant increasing trend, whereas relative humidity and wind speed show a decreasing trend. Future meteorological drought conditions are projected to intensify compared to the historical period, with seasonal variations showing alleviation in autumn but intensification in winter. Spatially, more severe meteorological drought conditions are observed in southern Xinjiang and the Hexi Corridor. As the emission scenarios become more severe, drought indicators including frequency, duration, peak intensity, and severity show increasing trends. The drought areas are primarily attributed to the increase of moderate and severe drought areas. Individual meteorological elements exhibit a strong correlation with SPEI, with temperature and precipitation being the dominant factors influencing SPEI changes. However, the contribution of solar radiation during spring and winter seasons should not be overlooked. This study establishes a scientific foundation for drought risk assessment and provides a reference for the formulation of water resource management strategies.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102513"},"PeriodicalIF":4.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multispatial scale effects of landscape patterns on seasonal water quality in Jiangnan water town under the green and integrated ecological development of the Yangtze River Delta 长三角绿色综合生态发展下江南水乡景观格局对季节水质的多空间尺度效应
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-13 DOI: 10.1016/j.ejrh.2025.102519
Ming Zhang , Hao-Rui Li , Yaoyao Fang , Xiaomian Zhang , Xiaojie Yan , Chunlei Yue , Liang-Jie Wang
{"title":"Multispatial scale effects of landscape patterns on seasonal water quality in Jiangnan water town under the green and integrated ecological development of the Yangtze River Delta","authors":"Ming Zhang ,&nbsp;Hao-Rui Li ,&nbsp;Yaoyao Fang ,&nbsp;Xiaomian Zhang ,&nbsp;Xiaojie Yan ,&nbsp;Chunlei Yue ,&nbsp;Liang-Jie Wang","doi":"10.1016/j.ejrh.2025.102519","DOIUrl":"10.1016/j.ejrh.2025.102519","url":null,"abstract":"<div><h3>Study region</h3><div>Jiashan County, Zhejiang Province, a typical Jiangnan water town.</div></div><div><h3>Study focus</h3><div>This study examined five water quality indices, namely pH, total nitrogen, total phosphorus, ammonia nitrogen, and the permanganate index, assessed landscape patterns at different riparian buffer scales, quantified the impacts of landscape patterns on water quality at different seasonal and spatial scales, and predicted the response of water quality under different landscape scenarios.</div></div><div><h3>New hydrological insights for the region</h3><div>The results revealed that landscape patterns generally explained more water quality changes in the dry season than in the wet season, although this difference was relatively limited. The 800 m scale had the most significant explanatory power, ranging from 1.38 % to 35.94 % higher than that of the other scales. The total nitrogen concentration did not meet the standard under any of the different scenarios. In the future, the focus should be on monitoring total nitrogen, and the landscape is recommended to reduce fragmentation of cropland and forest land. This study provides information to support the management of riparian zone landscapes and water ecosystems, and promotes the construction of a green ecological integration demonstration area in the Yangtze River Delta.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102519"},"PeriodicalIF":4.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nitrogen release potential and ecological environmental effects during particulate matter deposition in sub-deep reservoirs of Southwest China 西南亚深层储层颗粒物沉积过程中氮释放潜力及生态环境效应
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-13 DOI: 10.1016/j.ejrh.2025.102499
Dong Wu , Jingan Chen , Hongyun Bao , Lin Shi , Ziyan Zhang , Guangrong Ran , Yan Li , Yan Zeng
{"title":"Nitrogen release potential and ecological environmental effects during particulate matter deposition in sub-deep reservoirs of Southwest China","authors":"Dong Wu ,&nbsp;Jingan Chen ,&nbsp;Hongyun Bao ,&nbsp;Lin Shi ,&nbsp;Ziyan Zhang ,&nbsp;Guangrong Ran ,&nbsp;Yan Li ,&nbsp;Yan Zeng","doi":"10.1016/j.ejrh.2025.102499","DOIUrl":"10.1016/j.ejrh.2025.102499","url":null,"abstract":"<div><h3>Study region</h3><div>The study focuses on two sub-deep reservoirs (PD and BH) in southwestern China.</div></div><div><h3>Study focus</h3><div>Suspended particulate matter (SPM) is one of the most important sources of nitrogen (N) for maintaining the trophic state and stimulating primary production in lakes and reservoirs. The research on the migration and transformation of N during SPM sinking is much limited, especially in the sub-deep reservoirs. This study deployed SPM traps to systematically analyze the nitrogen forms, concentrations, and fluxes of settling particles at different depths. Additionally, a flooding incubation experiment was conducted to simulate the mineralization and release processes of particulate nitrogen under natural conditions.</div></div><div><h3>New hydrological insights for the region</h3><div>The results demonstrated significant mineralization and release of particulate N during SPM settling in both reservoirs, with released N primarily in the form of NH<sub>4</sub><sup>+</sup>. Compared to PD Reservoir, BH Reservoir, which has a higher eutrophic status, exhibited stronger particulate N mineralization and release. Thermal and oxygen stratification significantly influenced N migration and transformation. Due to high primary productivity and thermal stratification, BH Reservoir experienced bottom hypoxia, leading to ammonia accumulation and elevated NH<sub>4</sub><sup>+</sup>/NO<sub>3</sub><sup>-</sup> ratios in surface water. Consequently, for eutrophication control in sub-deep reservoirs, besides reducing external pollutant inputs, enhancing dissolved oxygen (DO) levels is crucial for improving aquatic ecology.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102499"},"PeriodicalIF":4.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morph_CNeT: A new GIS tool to extract morphometric attributes characterising channel network topology of Indian catchments Morph_CNeT:一种新的GIS工具,用于提取表征印度集水区河道网络拓扑结构的形态计量属性
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-12 DOI: 10.1016/j.ejrh.2025.102503
Saroj Rana, Sagar Rohidas Chavan
{"title":"Morph_CNeT: A new GIS tool to extract morphometric attributes characterising channel network topology of Indian catchments","authors":"Saroj Rana,&nbsp;Sagar Rohidas Chavan","doi":"10.1016/j.ejrh.2025.102503","DOIUrl":"10.1016/j.ejrh.2025.102503","url":null,"abstract":"<div><h3>Study region</h3><div>21 River Basins comprising 1749 Catchments within India.</div></div><div><h3>Study focus</h3><div>The morphometric attributes related to the channel network topology of a catchments are derived as functions of the emergence of the 1st, 2nd and 3rd bifurcation nodes of the network. These attributes are found to have influence on the shape of width function and hydrologic responses from catchments. There is a dearth of attempts to utilize these attributes in hydro-geomorphological applications, may be due to the complexity involved in their extraction owing to lack of any algorithmic procedure. This study is envisaged to develop an easy-to-use and time efficient Python based GIS code/tool named as Morph_CNeT within ArcGIS framework which provides an algorithmic way to extract the morphometric attributes.</div></div><div><h3>New hydrological insights for the region</h3><div>Morph_CNeT is utilized to derive topological attributes for 1749 hydrological observation sites belonging to 21 river basins within India to build a repository titled “Morph_CNeT-India”. Subsequently, the attributes are used to classify the catchments into several types of network topology as a function of the relative positions of first 3 internal nodes as well as their distances from the outlets. Finally, the empirical width functions constructed based on the morphometric attributes are shown to capture the multi-peaked behaviour of hydrographs to highlight significance of the attributes. The repository of morphometric attributes can form the basis for carrying out several hydro-geomorphological investigations.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102503"},"PeriodicalIF":4.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tree-ring based May-June streamflow reconstruction of Zemu River in the Eastern Himalaya 基于树轮的东喜马拉雅泽木河5 - 6月流量重建
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-12 DOI: 10.1016/j.ejrh.2025.102508
Nazimul Islam , Torsten Vennemann , Ulf Büntgen , Paul J. Krusic , Santosh K. Shah , Stuart N. Lane
{"title":"Tree-ring based May-June streamflow reconstruction of Zemu River in the Eastern Himalaya","authors":"Nazimul Islam ,&nbsp;Torsten Vennemann ,&nbsp;Ulf Büntgen ,&nbsp;Paul J. Krusic ,&nbsp;Santosh K. Shah ,&nbsp;Stuart N. Lane","doi":"10.1016/j.ejrh.2025.102508","DOIUrl":"10.1016/j.ejrh.2025.102508","url":null,"abstract":"<div><h3>Study region</h3><div>Zemu River, Upper Teesta River Basin, Eastern Himalaya</div></div><div><h3>Study focus</h3><div>In this study, a tree-ring chronology of Abies densa was used as a proxy to reconstruct a century-long May-June streamflow of the Zemu River. The reconstruction was carried out based on a scaling approach which explained 35 % of variance in observed streamflow and was varified by comparing with other regional reconstructions. Moving windowed Pearson correlation was performed to reveal the temporal influence of major climate forcings (e.g., ENSO) with the streamflow of Zemu River.</div></div><div><h3>New hydrological insights for the region</h3><div>Our study identified a strong negative relationship between tree-growth and observed May-June streamflow in the glacier-fed Zemu River. This counterintuitive, inverse relationship is likely due to the contribution of additional meltwater when conditions are dry and insulation over the glacier is high. The reconstructed streamflow record reveals several high- and low-flow periods above and below the mean value (+/- 1σ) and identifies 30 high-flow years and 33 low-flow years, including some historically recorded floods in 1927, 1968, 1980, 1982 and 1998, and of severe droughts in 1951, 1976 and 2017. Most recently, a positive association between reconstructed streamflow and the ENSO has become apparent, which we attribute to reduced penetration of the Indian Summer Monsoon during ENSO years, which reduces precipitation but maintains for longer warmer and drier conditions that allow glacier melt.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102508"},"PeriodicalIF":4.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing the performance of the CERRA dataset in reproducing precipitation and extreme precipitation events over the Iberian Peninsula 评估CERRA数据集在再现伊比利亚半岛降水和极端降水事件方面的性能
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-12 DOI: 10.1016/j.ejrh.2025.102517
I. Alvarez , H. Pereira , M.N. Lorenzo , A. Picado , J.M. Dias
{"title":"Assessing the performance of the CERRA dataset in reproducing precipitation and extreme precipitation events over the Iberian Peninsula","authors":"I. Alvarez ,&nbsp;H. Pereira ,&nbsp;M.N. Lorenzo ,&nbsp;A. Picado ,&nbsp;J.M. Dias","doi":"10.1016/j.ejrh.2025.102517","DOIUrl":"10.1016/j.ejrh.2025.102517","url":null,"abstract":"<div><h3>Study region</h3><div>The Iberian Peninsula (IP).</div></div><div><h3>Study focus</h3><div>Understanding precipitation and extreme precipitation events is crucial for managing climate impacts on human activities, ecosystems, and environment. Reanalysis datasets such as ERA-Interim and ERA5 are commonly used to studying these patterns; however, their spatial resolution often limits their accuracy. The recent high-resolution Copernicus European Regional ReAnalysis (CERRA) product provides an opportunity to improve precipitation estimates, particularly in regions with complex topography. The present study aims to assess the performance of the CERRA dataset in representing precipitation and extreme precipitation events across the IP. The analysis involves a comparison between CERRA and observational datasets, focusing on several annual and seasonal spatial precipitation indices. Special attention is given to the representation of extreme precipitation and their associated trends.</div></div><div><h3>New hydrological insights for the region</h3><div>The results indicate that CERRA effectively captures the spatial distribution of precipitation across most seasons, with weaker performance during the summer. CERRA reliable represents extreme precipitation and their temporal trends across the IP, especially in regions with complex orography such as Galicia and the Pyrenees. However, it tends to overestimate precipitation in drier areas. Trend analysis also revealed that, while CERRA successfully reflects the general patterns of precipitation extremes, some discrepancies remain, especially in autumn. Overall, CERRA demonstrates strong potential as a valuable dataset for hydrological and climatological studies over the IP.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102517"},"PeriodicalIF":4.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring the water surface dynamics of four Mediterranean mountain lakes in the Middle Atlas (Morocco) using Landsat imagery in a global change context 利用全球变化背景下的陆地卫星图像监测中阿特拉斯(摩洛哥)四个地中海山地湖泊的水面动态
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-11 DOI: 10.1016/j.ejrh.2025.102516
Tarik El Orfi , Mohamed El Ghachi , Sébastien Lebaut , Ionel Haidu
{"title":"Monitoring the water surface dynamics of four Mediterranean mountain lakes in the Middle Atlas (Morocco) using Landsat imagery in a global change context","authors":"Tarik El Orfi ,&nbsp;Mohamed El Ghachi ,&nbsp;Sébastien Lebaut ,&nbsp;Ionel Haidu","doi":"10.1016/j.ejrh.2025.102516","DOIUrl":"10.1016/j.ejrh.2025.102516","url":null,"abstract":"<div><h3>Study region</h3><div>Morocco's Middle Atlas, the wettest region in the country, hosts diverse water sources, including springs, rivers, and lakes. This study focuses on four representative mountain lakes—Azigza (LaZ), Ouiouan (LaO), the central lake of Tiglmamine (c-LaT), and Abakhan (LaB)—over the period from 1984 to 2023. These lakes are critical components of local hydrosystems, providing both ecological services and socioeconomic support in a region highly sensitive to climatic variability and increasing anthropogenic pressures.</div></div><div><h3>Study focus</h3><div>The research investigates the long-term surface water dynamics using multi-temporal Landsat imagery and spectral indices, complemented by field observations. The Modified Normalized Difference Water Index (MNDWI) was used to delineate lake surfaces, achieving an accuracy of 83 %. In parallel, the Normalized Difference Vegetation Index (NDVI) and field data were employed to evaluate the influence of human activities. Particular emphasis was placed on understanding the role of climate variability and agricultural intensification in altering lake dynamics.</div></div><div><h3>New hydrological insights for the region</h3><div>Findings reveal substantial reductions in lake surface areas, particularly between 2010 and 2023. LaB experienced a dramatic 95 % loss, nearing desiccation, while LaZ, c-LaT, and LaO declined by 52 %, 35 %, and 4 %, respectively. Around LaB, cultivated land expanded by over 300 %, indicating a pronounced anthropogenic impact. These results emphasize the urgent need for sustainable water and land management practices to safeguard these vulnerable high-altitude hydrosystems.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102516"},"PeriodicalIF":4.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Driving forces of the spatiotemporal supply pattern of runoff in the source region of Yellow River 黄河源区径流时空供给格局驱动因素
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-11 DOI: 10.1016/j.ejrh.2025.102515
Zongjie Li , Fang Liu , Hao Li , Mengqing Liu , Zongxing Li , Qi Feng , Bin Xu , Xiaoying Liu
{"title":"Driving forces of the spatiotemporal supply pattern of runoff in the source region of Yellow River","authors":"Zongjie Li ,&nbsp;Fang Liu ,&nbsp;Hao Li ,&nbsp;Mengqing Liu ,&nbsp;Zongxing Li ,&nbsp;Qi Feng ,&nbsp;Bin Xu ,&nbsp;Xiaoying Liu","doi":"10.1016/j.ejrh.2025.102515","DOIUrl":"10.1016/j.ejrh.2025.102515","url":null,"abstract":"<div><h3>Study region</h3><div>Source Region of Yellow River, China</div></div><div><h3>Study focus</h3><div>Studies on the impacts of permafrost degradation on the hydrological cycle in cold regions using stable isotope tracing are relatively scarce. In this study, we investigated the spatiotemporal supply patterns and mechanisms of runoff in source region of Yellow River, China, from June to September, using end-member mixing analysis.</div></div><div><h3>New hydrological insights for the region</h3><div>The results indicated that the monthly changes observed in stable isotopes across different waterbodies, along with their relation to the local meteoric water line, revealed that atmospheric precipitation contributed the most significantly to runoff in August. Contributions from precipitation, supra-permafrost water, and glacial snow meltwater to total runoff were 71, 24, and 5 %, respectively, at the river outlet. In June, these contributions were 53, 40, and 7 %, respectively; in July, 81, 14, and 5 %; in August, 86, 10, and 4 %; and in September, 63, 34, and 3 %. Precipitation and supra-permafrost water increased initially and then decreased, while glacial snow meltwater consistently declined. At higher altitudes, glacial snow meltwater played a more prominent role in runoff recharge, whereas supra-permafrost water was less influenced by altitude. Overall, precipitation was found to be the primary source of runoff, followed by supra-permafrost water and then glacial snow meltwater in source region of Yellow River, China.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102515"},"PeriodicalIF":4.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modelling the impacts of climate change on groundwater recharge patterns in northern Germany 模拟气候变化对德国北部地下水补给模式的影响
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-10 DOI: 10.1016/j.ejrh.2025.102507
Ian McNamara , Tim Wolters , Bernd König , Anna-Lena Rugen , Miriam Toro , Martina Flörke , Frank Wendland
{"title":"Modelling the impacts of climate change on groundwater recharge patterns in northern Germany","authors":"Ian McNamara ,&nbsp;Tim Wolters ,&nbsp;Bernd König ,&nbsp;Anna-Lena Rugen ,&nbsp;Miriam Toro ,&nbsp;Martina Flörke ,&nbsp;Frank Wendland","doi":"10.1016/j.ejrh.2025.102507","DOIUrl":"10.1016/j.ejrh.2025.102507","url":null,"abstract":"<div><h3>Study region</h3><div>Schleswig-Holstein, Germany</div></div><div><h3>Study focus</h3><div>For water management and planning purposes, predictions of how groundwater recharge regimes are expected to change under climate change are of high importance. The northern German state of Schleswig-Holstein has a heavy reliance on groundwater resources, and is expected to experience both increasing precipitation and potential evapotranspiration rates in the future. We implemented the high spatio-temporal deterministic mGROWA hydrological model (100 m, daily) under the full climate ensemble recommended for use in Germany (44 members) until the end of the 21st century to simulate future groundwater recharge changes. For evaluation of climate change impacts, 30-year periods were used.</div></div><div><h3>New hydrological insights for the region</h3><div>The majority of the climate models show an increase in groundwater recharge rates over the periods 2041–2070 and 2071–2100. This is the case for all three evaluated RCPs (RCP2.6, RCP4.5 and RCP8.5); however, the increases are generally relatively small, with none of the changes classified as significant under the applied robustness test. We also implemented the “climate railguards” concept, which classifies the likely changes as the range between the 15th and 85th percentiles of the climate model results belonging to each RCP. Lastly, a comparison of the application of different spatial areas used for aggregation of results highlights the importance of selecting spatial units appropriate to the water management application.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"60 ","pages":"Article 102507"},"PeriodicalIF":4.7,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in runoff from major alpine watersheds on the Qinghai-Tibetan plateau: A review 青藏高原主要高寒流域径流变化研究进展
IF 4.7 2区 地球科学
Journal of Hydrology-Regional Studies Pub Date : 2025-06-09 DOI: 10.1016/j.ejrh.2025.102514
Guohui Li , Zongxing Li , Baoqing Zhang , Zongjie Li
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