Article
Environmental Sciences
Zengliang Luo, Huan Li, Sihan Zhang, Lunche Wang, Shaoqiang Wang, Lizhe Wang
Summary: Enforcing terrestrial water budget closure is crucial for obtaining consistent data sets of budget components. However, existing methods are affected by errors in the budget-component products and do not fully consider the preselection of high-precision input data sets. This study proposes a two-step method that selects high-precision data sets and enforces water budget closure using an improved correction strategy. Experimental results demonstrate that the proposed method significantly improves the accuracy of budget-corrected data sets compared to existing methods.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Ticiana Marinho de Carvalho Studart, Jose Nilson B. Campos, Francisco Assis de Souza Filho, Maria Ines Teixeira Pinheiro, Luis Silva Barros
Summary: This paper introduces a water conflict typology and its applications in water resources planning and management. By analyzing historical and contemporary cases, conflicts are broken down into component characteristics, providing valuable insights for conflict resolution.
ENVIRONMENTAL SCIENCE & POLICY
(2021)
Article
Environmental Sciences
Yue Jiao, Kun Bu, Jiuchun Yang, Guangshuai Li, Lidu Shen, Tingxiang Liu, Lingxue Yu, Shuwen Zhang, Hengqing Zhang
Summary: The temperate forests in Northeast China play a significant role in regulating regional temperature and precipitation, slightly warming the annual air temperature and bringing more rainfall, especially in spring and summer. They help cushion the air temperature by increasing it in winter and spring, and decreasing it in summer, contributing to the sustainable development of agriculture in the region.
Article
Environmental Sciences
Ulysse Pasquier, Pouya Vahmani, Andrew D. Jones
Summary: Decades of urbanization have significantly affected the water cycle in cities, especially in water-scarce areas, by reducing potential groundwater recharge and increasing surface runoff. This study provides a valuable tool for managing urban land and water resources.
Article
Water Resources
Francis E. Oussou, Christopher E. Ndehedehe, Joseph Oloukoi, Nicaise Yalo, Moussa Boukari, Amadou T. Diaw
Summary: This study combines satellite remote sensing, hydrological models, and in situ measurement to evaluate the spatial and temporal patterns of water storage changes in fractured aquifers in Benin. The results reveal significant inter-annual variations in land water storage and highlight the impact of seasonal precipitation and human activities on groundwater storage and vegetation cover.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Environmental Sciences
Luke A. Pangle, Jeremy E. Diem, Richard Milligan, Ellis Adams, Allison Murray
Summary: Defects in sanitary-sewer infrastructure allow for the exchange of fluids with the environment. The intrusion of rainwater and groundwater into sanitary sewers, known as inflow and infiltration (I&I), has unknown impacts on streamflow in urban watersheds. Our study quantified the effects of I&I on streamflow using measured flows in sanitary-sewer pipes in four watersheds near Atlanta, Georgia, USA. We found that I&I substantially reduces flows in urban streams, especially during dry weather.
WATER RESOURCES RESEARCH
(2022)
Article
Meteorology & Atmospheric Sciences
Daoyang Bao, Z. George Xue, John C. C. Warner, Melissa Moulton, Dongxiao Yin, Christie A. A. Hegermiller, Joseph B. B. Zambon, Ruoying He
Summary: This study presents a dynamical coupling method to investigate the evolution of hurricane-induced compound flooding in the estuary. The coupled model, integrating a processes-based hydrological model and a two-dimensional regional ocean model, was evaluated against observed data and used to quantify the contributions from different processes to water level variations. The study found that the estuary acts as a buffer for surges from the ocean side.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
Article
Environmental Sciences
R. Abolafia-Rosenzweig, M. Pan, J. L. Zeng, B. Livneh
Summary: This study introduces a new approach to enforce water balance closure by combining remote sensing and in situ observations, generating a series of unique water balance estimates to characterize uncertainty. The study shows that residual errors vary significantly with latitude, with an overall residual error equivalent to 15% of total precipitation.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Environmental Sciences
Cong Liu, Wenlai Jiang, Yongfeng Wu, Yunfei Liu, Lijiang Liang
Summary: Using the modified Penman-Monteith equation and GIS technology, this study calculates the net crop irrigation water requirements for four main crops in Northeast China and analyzes their spatiotemporal distribution characteristics. The study also estimates the regional farmland irrigation water requirements, determines water balance, and analyzes the dominant factors affecting farmland irrigation water requirements in different regions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Forestry
Shiyu Dai, Nawatbhrist Kitudom, Xue Miao, Hailong Ge, Li Zheng, Hede Gong
Summary: This study analyzed the precipitation redistribution and hydro-chemical characteristics in a high elevation, evergreen broad-leaved forest in Southwest China based on a 15-year precipitation dataset. The results showed seasonal variation in precipitation and different patterns of precipitation redistribution. Water-holding capacity remained relatively stable, but alkali cations in the water body showed a decreasing trend, posing a potential threat to ecological stability.
Article
Geosciences, Multidisciplinary
J. K. Andersen, N. Rathmann, C. S. Hvidberg, A. Grinsted, A. Kusk, J. P. Merryman Boncori, J. Mouginot
Summary: Subglacial hydrology has a significant impact on ice flow through its effect on friction at the ice-bedrock interface. Using DInSAR technology, a series of subglacial drainage events were observed along the Northeast Greenland Ice Stream (NEGIS) starting as far inland as 500 km from the margin of Zachariae Isstrom. These events were associated with local transient uplift, followed by prolonged subsidence, and temporary acceleration in ice flow downstream. The high spatiotemporal resolution of DInSAR measurements allowed for detailed mapping of the drainage propagation pathway, revealing multiple drainage cascades along the same pathway between 2020 and 2022. The propagation speed of subglacial water flow varied greatly along NEGIS, suggesting fundamental differences in the subglacial environment.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Gregory J. McCabe, David M. Wolock, Melissa Lombard, Robert W. Dudley, John C. Hammond, Jory S. Hecht, Glenn A. Hodgkins, Carolyn Olson, Roy Sando, Caelan Simeone, Mike Wieczorek
Summary: This study examines five major drought events in the conterminous United States from 1901 to 2020 and identifies precipitation deficits as the primary driver of past droughts. It also highlights the importance of monitoring both runoff and soil moisture to understand drought conditions. The study further demonstrates the use of persistence in predicting short-term changes in the spatial pattern and areal extent of droughts.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Guy Dagan, Philip Stier, Beth Dingley, Andrew I. L. Williams
Summary: This study explores the co-variability of atmospheric energy and water budget imbalances in different global model configurations, proposing a framework that links cloud properties to large-scale tropical circulation and climate system.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
Article
Engineering, Civil
Wei Wang, Jia Liu, Bin Xu, Chuanzhe Li, Yuchen Liu, Fuliang Yu
Summary: The study improved the structure of WRF-Hydro to better adapt to the complex rainfall-runoff transformation mechanism, and achieved better performance of the model by introducing new infiltration equation and river channel leakage loss. In the case studies of typical rainstorm events, the results showed that the improved model had better performance in simulating floods, but there was room for improvement in simulating low peaks.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Babak Vaheddoost, Farshad Fathian, Enes Gul, Mir Jafar Sadegh Safari
Summary: This study investigates the relationship between the decline in Lake Urmia water level and hydro-meteorological variables in the basin using data-driven techniques. The analysis shows that streamflow and potential groundwater head exhibit abrupt changes compared to precipitation and evaporation.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Environmental
Fernando R. Salas, Marcelo A. Somos-Valenzuela, Aubrey Dugger, David R. Maidment, David J. Gochis, Cedric H. David, Wei Yu, Deng Ding, Edward P. Clark, Nawajish Noman
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
(2018)
Article
Engineering, Geological
Guisheng Hu, Shufeng Tian, Ningsheng Chen, Mei Liu, Marcelo Somos-Valenzuela
ENGINEERING GEOLOGY
(2020)
Article
Environmental Sciences
Marcelo Somos-Valenzuela, Francisco Manquehual-Cheuque
Article
Engineering, Environmental
Kanglin Wu, Ningsheng Chen, Guisheng Hu, Tao Wang, Yong Zhang, Somos Marcelo
Summary: The study analyzed the failure mechanism and dynamic process of the Boli landslide in Yanyuan County, Southwest China, pointing out that antecedent rainfall was not the direct factor in saturating the sliding mass. Runoff supplied by the comb-like channel group upstream of the landslide served as an important hydrodynamic triggering point for accelerating the sliding mass to saturation and instability. Numerical simulation results showed that the landslide evolved in three stages: low-speed initiation, accelerating sliding, and flow deposition.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Geological
Bastian Morales, Elizabet Lizama, Marcelo A. Somos-Valenzuela, Mario Lillo-Saavedra, Ningsheng Chen, Ivo Fustos
Summary: The study aims to detect and predict landslides in Northern Patagonia of Chile, utilizing machine learning methods to identify key environmental variables such as climate indices, indicators of extreme events, and geological triggers. The study area is influenced by both terrain evolution and climatic conditions, highlighting the importance of understanding the interaction between geological and climatic processes and assessing the future impact of natural hazards.
Article
Fisheries
Henry D. Legett, Adrian Jordaan, Allison H. Roy, John J. Sheppard, Marcelo Somos-Valenzuela, Michelle D. Staudinger
Summary: The timing of life history events in many plants and animals is affected by seasonal environmental fluctuations, with anadromous fishes being particularly sensitive to climate change. Water temperature was found to be the most consistent predictor of river herring migration patterns, while effects of streamflow and lunar phase varied. Vulnerabilities to climate change were identified in more northerly runs due to later migration in warmer water and a narrower temporal window.
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
(2021)
Article
Environmental Sciences
Mario Lillo-Saavedra, Viviana Gavilan, Angel Garcia-Pedrero, Consuelo Gonzalo-Martin, Felipe de la Hoz, Marcelo Somos-Valenzuela, Diego Rivera
Summary: This study introduces a new methodology to characterize the water demand of crops by integrating data from multiple sources, including satellite observations, field campaigns, and public databases. The results show that spatial-temporal information on water availability and demand pairing can help close the water gap and enable better management of water resources.
Article
Environmental Sciences
Elizabet Lizama, Bastian Morales, Marcelo Somos-Valenzuela, Ningsheng Chen, Mei Liu
Summary: The interaction of geological processes and climate changes has led to increased landslide activity in northern Chilean Patagonia, impacting communities and ecosystems. The 2017 flood in Villa Santa Lucia highlighted the vulnerability of the population and critical infrastructure to natural hazards. The study showed that soil moisture, lithology, drainage density, and seismic activity significantly influenced the susceptibility of landslides.
Article
Environmental Sciences
Bastian Morales, Angel Garcia-Pedrero, Elizabet Lizama, Mario Lillo-Saavedra, Consuelo Gonzalo-Martin, Ningsheng Chen, Marcelo Somos-Valenzuela
Summary: Landslide inventories are essential for studying the dynamics, risks, and effects of these processes on mountain landscapes. The use of artificial intelligence models based on deep learning techniques can automate landslide detection, but there is a lack of research in the Andes region. This study aims to narrow this gap by creating a large dataset for the Patagonian Andes and applying a deep learning model, achieving promising results with high accuracy and segmentation capabilities, despite some errors.
Article
Agronomy
Mario Lillo-Saavedra, Alberto Espinoza-Salgado, Angel Garcia-Pedrero, Camilo Souto, Eduardo Holzapfel, Consuelo Gonzalo-Martin, Marcelo Somos-Valenzuela, Diego Rivera
Summary: Crop yield forecasting is crucial for farmers' decision-making and planning. However, current methods have limitations, such as limited data collection time. This study presents a methodology using unmanned aerial vehicles and multispectral sensors to predict tomato yield at different stages of crop development, achieving a 9.28% error rate.
Article
Development Studies
Alex Boso, Sebastian Ibarra, Luis Gomez, Boris Alvarez, Claudio Herranz, Marcelo Somos-Valenzuela, Jaime Garrido
Summary: This study integrates survey data and wood smoke pollution estimates to examine the spatial associations between sociodemographic characteristics, exposures, and risk perception in southern Chile. The findings highlight the inequitable exposure to PM2.5 among certain social groups and the impact of PM2.5 levels and sociodemographic factors on air pollution risk perception.
SOCIETY & NATURAL RESOURCES
(2023)
Article
Geosciences, Multidisciplinary
Ningsheng Chen, Shufeng Tian, Fawu Wang, Peijun Shi, Lihong Liu, Miaoyuan Xiao, Enlong Liu, Wenqing Tang, Mahfuzur Rahman, Marcelo Somos-Valenzuela
Summary: This study aims to determine the mechanism of the three largest catastrophic rockslides in the eastern Tibetan Plateau over the past 20 years using field investigation, remote sensing, and runoff analysis. The multi-wing butterfly effects (MWBE) of climatic factors and weak earthquakes are identified as drivers of the catastrophic rockslide disasters. The catastrophic rockslide was ultimately inferred to be a nonlinear chaotic process, but prediction and forecasting of rockslide based on the MWBE in the early stages are possible and essential.
GEOSCIENCE FRONTIERS
(2023)
Article
Geosciences, Multidisciplinary
Ivo Janos Fustos-Toribio, Bastian Morales-Vargas, Marcelo Somos-Valenzuela, Pablo Moreno-Yaeger, Ramiro Munoz-Ramirez, Ines Rodriguez Araneda, Ningsheng Chen
Summary: Debris flow generation in volcanic zones in the southern Andes, specifically the 2017 Petrohue event, was studied through field surveys and numerical modeling to understand the dynamics and factors involved in such events. The study found that debris flow volume is highly sensitive to the initial water content in the rockfall zone, with the volume ranging from 4.7x10(5) to 5.5x10(5) m(3) depending on the digital elevation model used.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Marcelo A. Somos-Valenzuela, Joaquin E. Oyarzun-Ulloa, Ivo J. Fustos-Toribio, Natalia Garrido-Urzua, Ningsheng Chen
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Alvaro Hofflinger, Marcelo A. Somos-Valenzuela, Arturo Vallejos-Romero
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2019)