Article
Green & Sustainable Science & Technology
Wei Shan, Yan Wang, Ying Guo, Chengcheng Zhang, Shuai Liu, Lisha Qiu
Summary: Global climate change has led to the accelerated degradation of permafrost in Northeast China, affecting the hydrological and ecological processes and impacting natural systems and human activities in the region.
Article
Geosciences, Multidisciplinary
Qian Li, Yongkang Xue, Ye Liu
Summary: Frozen soil processes play a crucial role in controlling surface water and energy balances, with significant impacts on soil thermal characteristics. Introducing a more realistic and stable frozen soil module into land surface models has been shown to improve soil temperature profile simulation and seasonal variations, especially in regions like the Tibetan Plateau and North China. This study highlights the potential of the SSiB3-FSM model for understanding soil thermal characteristics over frozen ground and improving land-atmosphere interactions in cold regions.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Water Resources
Jiali Xin, Xiaoyu Sun, Liu Liu, Hao Li, Xingcai Liu, Xiuping Li, Lei Cheng, Zongxue Xu
Summary: Climate variability and underlying surface changes are strongly associated with runoff alterations in the Yarlung Zangbo River Basin. The increase in runoff in the upper region is dominated by changes in the underlying surface and glacier runoff, while the middle and lower regions are mainly attributed to the increase in precipitation. The findings have important implications for water resource security and sustainable development in alpine regions.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
F. Bearzot, N. Colombo, E. Cremonese, U. Morra di Cella, E. Drigo, M. Caschetto, S. Basirico, G. B. Crosta, P. Frattini, M. Freppaz, P. Pogliotti, F. Salerno, A. Brunier, M. Rossini
Summary: This study investigates the effects of the discharge from an intact rock glacier on a high-elevation stream in the NW Italian Alps. Despite draining only 39% of the watershed area, the rock glacier contributes a large amount of discharge to the stream, particularly in late summer and early autumn. Ice melt is not a significant component of the discharge due to the insulating debris mantle. The sedimentological characteristics and internal hydrological system of the rock glacier play a major role in storing and transmitting groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
Melissa A. Boyd, Xanthe J. Walker, Jennifer Barnes, Gerardo Celis, Scott J. Goetz, Jill F. Johnstone, Nicholas T. Link, April M. Melvin, Lisa Saperstein, Edward A. G. Schuur, Michelle C. Mack
Summary: As climate warms and fires become more common in boreal forests, fuel reduction treatments are used to mitigate fire risks. However, these treatments introduce uncertainties to ecosystem structure and fire behavior. This study evaluated the long-term effects of fuel reduction treatments in Interior Alaska and found that they can promote low flammability and deciduous tree dominance, but their effectiveness in reducing fire spread and behavior varies depending on the treatment methods and locations. The study highlights the importance of considering these factors in the design and management of fuel reduction treatments.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Zhe Liu, Ninglian Wang, Lan Cuo, Liqiao Liang
Summary: The Qilian Mountains in Tibet play a crucial role in water conservation and ecological protection. However, climate change and cryospheric variation have greatly affected the hydrological processes in this region, posing challenges to water resource management and sustainable development. Existing research on Qilian Mountains has mainly focused on runoff change at a basin scale, and little is known about the spatial distributions and temporal changes of runoff. This study estimated the total annual runoff in the Qilian Mountains based on multi-source data and literature review, and identified the factors influencing runoff variations at different scales. The findings highlight the need for further research on the interactions among cryospheric components and hydrological processes to deepen our understanding of runoff variations in this important region.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Michael A. Rawlins, Craig T. Connolly, James W. McClelland
Summary: The mobilization and transfer of dissolved organic carbon in Arctic watersheds are closely related to the region's climate and water cycle, and may be affected by climate warming. Simulation studies quantify DOC loadings to western Arctic rivers and validate the results with field measurements and other studies. The modeling framework provides insights into carbon export to coastal waters and the potential impacts of climate change in the Arctic.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Environmental Sciences
Michael A. Rawlins, Craig T. Connolly, James W. Mcclelland
Summary: The study quantifies model-simulated estimates of dissolved organic carbon (DOC) runoff and loadings to western Arctic rivers, capturing a gradient in seasonal DOC concentrations for North Slope Alaska rivers and similar loadings to rivers draining to the north and west. The modeling framework provides insights into carbon export to coastal waters and the impacts of hydrological cycle intensification and permafrost thaw in the Arctic due to ongoing warming. Arctic rivers play a crucial role in transporting freshwater and dissolved organic carbon to the Arctic Ocean, with climate warming influencing the amount of carbon entering river networks from soils.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Engineering, Civil
Leonardo V. Noto, Giuseppe Cipolla, Antonio Francipane, Dario Pumo
Summary: The Mediterranean basin is highly vulnerable to climate change and water scarcity due to its concentration of urban and industrial settlements. Recent studies show a general increase in air temperatures in the region, but there is less agreement on future projections for variables such as precipitation, evapotranspiration, and runoff.
WATER RESOURCES MANAGEMENT
(2023)
Article
Environmental Sciences
Youhua Ran, M. Torre Jorgenson, Xin Li, Huijun Jin, Tonghua Wu, Ren Li, Guodong Cheng
Summary: This study classified permafrost regions in the Northern Hemisphere into five types based on global climate and ecological datasets, highlighting the dominant role of ecosystems in permafrost stability. Climate-driven permafrost mainly found in high latitude areas requires reducing ecosystem disturbances to slow permafrost degradation.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Juan Gui, Zongxing Li, Baijuan Zhang, Jian Xue, Fa Du, Lanping Si
Summary: This study quantitatively evaluated the runoff components and formation processes during strong ablation periods in China's Qilian Mountains transition zone between endorheic and exorheic basins. The results showed that as altitude decreased, the contribution of glacier and snow meltwater and permafrost water to runoff decreased, while precipitation increased. It is necessary to develop prediction models for extreme precipitation and hydrological events, as well as prediction technologies for runoff formation and evolution in glacier snow and permafrost.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Joost Buitink, Lieke A. Melsen, Adriaan J. Teuling
Summary: This study examines how temperature-driven changes in evaporation and snow processes impact discharge in the Rhine Basin. It was found that changes in discharge were significantly influenced by temperature effects on snowfall and melt, temperature effects on evaporation, and precipitation. The study demonstrates that temperature-driven changes, particularly in evaporation and snow processes, have a larger impact on discharge compared to precipitation-driven changes.
EARTH SYSTEM DYNAMICS
(2021)
Article
Engineering, Geological
Guoan Yin, Jing Luo, Fujun Niu, Zhanju Lin, Minghao Liu
Summary: This study used multiple machine learning models to explore factors controlling thermokarst landslides (TL) on the Qinghai-Tibet Plateau (QTP). The research found that summer air temperature and rainfall are the most important factors affecting the occurrence and distribution of TLs. Additionally, the study revealed that approximately 1.4% of the QTP land is classified as having high susceptibility to TLs, which is expected to increase in response to future climate change.
Article
Multidisciplinary Sciences
Scott L. Painter, Ethan T. Coon, Ahmad Jan Khattak, Julie D. Jastrow
Summary: We used a soil ice content model to study the potential risk of abrupt permafrost thaw triggered by melting ground ice in a warming Arctic. Simulations of a specific site in Alaska showed subsidence of 63 cm from 2006 to 2100 in a strong-warming climate scenario. The increase in active layer thickness due to permafrost thaw was accelerated by subsidence, but the effect was relatively small.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Ken D. Tape, Jason A. Clark, Benjamin M. Jones, Seth Kantner, Benjamin Gaglioti, Guido Grosse, Ingmar Nitze
Summary: Recent findings show that beavers have moved into the Arctic tundra and are controlling surface water dynamics through the construction of beaver ponds. The rapid expansion of beaver engineering is important for understanding permafrost thawing and the exacerbation of climate change effects.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Civil
Arfan Arshad, Ali Mirchi, Javier Vilcaez, Muhammad Umar Akbar, Kaveh Madani
Summary: High-resolution, continuous groundwater data is crucial for adaptive aquifer management. This study presents a predictive modeling framework that incorporates covariates and existing observations to estimate groundwater level changes. The framework outperforms other methods and provides reliable estimates for unmonitored sites. The study also examines groundwater level changes in different regions and highlights the importance of effective aquifer management.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Lihua Chen, Jie Deng, Wenzhe Yang, Hang Chen
Summary: A new grid-based distributed karst hydrological model (GDKHM) is developed to simulate streamflow in the flood-prone karst area of Southwest China. The results show that the GDKHM performs well in predicting floods and capturing the spatial variability of karst system.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Faruk Gurbuz, Avinash Mudireddy, Ricardo Mantilla, Shaoping Xiao
Summary: Machine learning algorithms have shown better performance in streamflow prediction compared to traditional hydrological models. In this study, researchers proposed a methodology to test and benchmark ML algorithms using artificial data generated by physically-based hydrological models. They found that deep learning algorithms can correctly identify the relationship between streamflow and rainfall in certain conditions, but fail to outperform traditional prediction methods in other scenarios.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yadong Ji, Jianyu Fu, Bingjun Liu, Zeqin Huang, Xuejin Tan
Summary: This study distinguishes the uncertainty in drought projection into scenario uncertainty, model uncertainty, and internal variability uncertainty. The results show that the estimation of total uncertainty reaches a minimum in the mid-21st century and that model uncertainty is dominant in tropical regions.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Z. R. van Leeuwen, M. J. Klaar, M. W. Smith, L. E. Brown
Summary: This study quantifies the effectiveness of leaky dams in reducing flood peak magnitude using a transfer function noise modelling approach. The results show that leaky dams have a significant but highly variable impact on flood peak magnitude, and managing expectations should consider event size and type.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Zeda Yin, Yasaman Saadati, M. Hadi Amini, Linlong Bian, Beichao Hu
Summary: Combined sewer overflows pose significant threats to public health and the environment, and various strategies have been proposed to mitigate their adverse effects. Smart control strategies have gained traction due to their cost-effectiveness but face challenges in balancing precision and computational efficiency. To address this, we propose exploring machine learning models and the inversion of neural networks for more efficient CSO prediction and optimization.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Qimou Zhang, Jiacong Huang, Jing Zhang, Rui Qian, Zhen Cui, Junfeng Gao
Summary: This study developed a N-cycling model for lowland rural rivers covered by macrophytes and investigated the N imports, exports, and response to sediment dredging. The findings showed a considerable N retention ability in the study river, with significant N imports from connected rivers and surrounding polders. Sediment dredging increased particulate nitrogen resuspension and settling rates, while decreasing ammonia nitrogen release, denitrification, and macrophyte uptake rates.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Xue Li, Yingyin Zhou, Jian Sha, Man Zhang, Zhong-Liang Wang
Summary: High-resolution climate data is crucial for predicting regional climate and water environment changes. In this study, a two-step downscaling method was developed to enhance the spatial resolution of GCM data and improve the accuracy for small basins. The method combined medium-resolution climate data with high-resolution topographic data to capture spatial and temporal details. The downscaled climate data were then used to simulate the impacts of climate change on hydrology and water quality in a small basin. The results demonstrated the effectiveness of the downscaling method for spatially differentiated simulations.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Tongqing Shen, Peng Jiang, Jiahui Zhao, Xuegao Chen, Hui Lin, Bin Yang, Changhai Tan, Ying Zhang, Xinting Fu, Zhongbo Yu
Summary: This study evaluates the long-term interannual dynamics of permafrost distribution and active layer thickness on the Tibetan Plateau, and predicts future degradation trends. The results show that permafrost area has been decreasing and active layer thickness has been increasing, with an accelerated degradation observed in recent decades. This has significant implications for local water cycle processes, water ecology, and water security.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Chi Zhang, Xu Zhang, Qiuhong Tang, Deliang Chen, Jinchuan Huang, Shaohong Wu, Yubo Liu
Summary: Precipitation over the Tibetan Plateau is influenced by systems such as the Asian monsoons, the westerlies, and local circulations. The Indian monsoon, the westerlies, and local circulations are the main systems affecting precipitation over the entire Tibetan Plateau. The East Asian summer monsoon primarily affects the eastern Tibetan Plateau. The Indian monsoon has the greatest influence on precipitation in the southern and central grid cells, while the westerlies have the greatest influence on precipitation in the northern and western grid cells. Local circulations have the strongest influence on the central and eastern grid cells.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Manuel Almeida, Antonio Rodrigues, Pedro Coelho
Summary: This study aimed to improve the accuracy of Total Phosphorus export coefficient models, which are essential for water management. Four different models were applied to 27 agroforestry watersheds in the Mediterranean region. The modeling approach showed significant improvements in predicting the Total Phosphorus diffuse loads.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yutao Wang, Haojie Yin, Ziyi Wang, Yi Li, Pingping Wang, Longfei Wang
Summary: This study investigated the distribution and transformation of dissolved organic nitrogen (DON) in riverbed sediments impacted by effluent discharge. The authors found that the spectral characteristics of dissolved organic matter (DOM) in surface water and sediment porewater could be used to predict DON variations in riverbed sediments. Random forest and extreme gradient boosting machine learning methods were employed to provide accurate predictions of DON content and properties at different depths. These findings have important implications for wastewater discharge management and river health.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Saba Mirza Alipour, Kolbjorn Engeland, Joao Leal
Summary: This study assesses the uncertainty associated with 100-year flood maps under different scenarios using Monte Carlo simulations. The findings highlight the importance of employing probabilistic approaches for accurate and secure flood maps, with the selection of probability distribution being the primary source of uncertainty in precipitation.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Janine A. de Wit, Marjolein H. J. van Huijgevoort, Jos C. van Dam, Ge A. P. H. van den Eertwegh, Dion van Deijl, Coen J. Ritsema, Ruud P. Bartholomeus
Summary: The study focuses on the hydrological consequences of controlled drainage with subirrigation (CD-SI) on groundwater level, soil moisture content, and soil water potential. The simulations show that CD-SI can improve hydrological conditions for crop growth, but the success depends on subtle differences in geohydrologic characteristics.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Constantin Seidl, Sarah Ann Wheeler, Declan Page
Summary: Water availability and quality issues will become increasingly important in the future due to climate change impacts. Managed Aquifer Recharge (MAR) is an effective water management tool, but often overlooked. This study analyzes global MAR applications and identifies the key factors for success, providing valuable insights for future design and application.
JOURNAL OF HYDROLOGY
(2024)