Results 51 to 60 of about 940 (132)

A New Global Hypsometric Data Set Derived From Satellite and Geometric Methods for Reservoir Storage Estimation

open access: yesWater Resources Research, Volume 62, Issue 9, September 2026.
Abstract Reservoir hypsometric relationships are crucial in determining water storage changes and modeling hydrological processes. Previous studies have demonstrated that uncertainties in reservoir surface area observations are a primary source of error in satellite‐derived storage estimates.
Ngoc T. Nguyen   +6 more
wiley   +1 more source

Linking Landscapes, Flood Risks and Communities: Flood Susceptibility Assessment of Connemara and Aaran Islands, Galway, Ireland

open access: yesJournal of Flood Risk Management, Volume 19, Issue 3, September 2026.
ABSTRACT Atlantic‐facing coastal communities of western Ireland face recurrent flood hazards driven by intense precipitation, storm surges, and tidal influences. Existing national flood mapping efforts provide valuable hydrodynamic simulations but rarely integrate multi‐criteria decision analysis with data‐driven machine learning to capture local‐scale
Beulah Evelyn Lazarus   +2 more
wiley   +1 more source

Pyroclastic Density Current Hazard Assessment and Modeling Uncertainties for Fuego Volcano, Guatemala

open access: yesRemote Sensing, 2020
On 3 June 2018, Fuego volcano experienced a VEI = 3 eruption, which produced a pyroclastic density current (PDC) that devastated the La Réunion resort and the community of Los Lotes, resulting in over 100 deaths.
Ian T. W. Flynn, Michael S. Ramsey
doaj   +1 more source

Effects of Landscape Pattern on Spatial Distribution of Soil Organic Carbon Content in a Typical Lakeside Oasis

open access: yesLand Degradation &Development, Volume 37, Issue 14, Page 10494-10512, 30 August 2026.
ABSTRACT Knowledge of the factors influencing the spatial distribution of farmland soil organic carbon (SOC) content contributes to a better understanding of human impacts on soil, which is crucial for improving soil quality and mitigating climate change.
Ke Quan, Xinguo Li, Xiangyu Ge
wiley   +1 more source

Utilizing NASA's Operation IceBridge Airborne SWE and Precipitation Products to Assess Surface Snow Over Alaskan Glaciers

open access: yesEarth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Accurately estimating Snow Water Equivalent (SWE) in glacierized regions is critical for glacier modeling and mass balance analysis yet remains challenging due to sparse observations and uncertainties in precipitation products. The objectives are twofold: (a) assess how well three widely used precipitation datasets—Stage IV (a radar–gauge ...
Yang Song, Ali Behrangi
wiley   +1 more source

Avaliação de cinco algoritmos de árvores de decisão e três tipos de modelos digitais de elevação para mapeamento digital de solos a nível semidetalhado na Bacia do Lageado Grande, RS, Brasil

open access: yesCiência Rural, 2013
O mapeamento digital de solos (MDS) tem como base a geração de sistemas de informações que permitem estabelecer relações matemáticas entre variáveis ambientais e solos e, dessa forma, predizer a distribuição espacial das classes ou propriedades dos solos.
Elvio Giasson   +4 more
doaj   +1 more source

Hidden Crisis in Off‐Stream Reservoirs From Their High Sedimentation and Ageing Risks

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Aging dams and reservoir sedimentation pose a growing threat globally. While large dams on streams dominate scientific attention, the small, especially off‐stream reservoirs are vital to rural communities but receive disproportionately less attention. This study first quantifies the proportion of off‐stream reservoirs in the United States (58%)
Hongxi Liu, Chao Guo, Pei Liu, Yujun Yi
wiley   +1 more source

Deciphering Freeze–Thaw Dynamics In Rockwalls: A Novel Approach for High Accuracy Regional‐Scale Modeling

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 3, Page 430-448, July/September 2026.
ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley   +1 more source

An evaluation of EU-DEM in comparison with ASTER GDEM, SRTM and contour-based DEMs over the Eastern Mecsek Mountains

open access: yesHungarian Geographical Bulletin, 2014
The availability of global coverage digital surface models (like ASTER GDEM or SRTM) and the variation of fused models based on these (like EU-DEM) still has a great impact on scientific researches, as they provides a fairly good base dataset with a low ...
Edina Józsa   +2 more
doaj   +1 more source

Geophysical investigation of the Santa Marta impact structure—Piauí State, Brazil

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 7, Page 1399-1416, July 2026.
Abstract The Santa Marta impact structure in northeastern Brazil, recognized as a partially preserved complex crater, was investigated through an integrated geophysical study employing magnetotelluric (MT) and gravity methods. Our research provides constraints on the crater's subsurface architecture.
Elienara Vasconcelos   +5 more
wiley   +1 more source

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