Results 101 to 110 of about 6,047,181 (260)

GYPSUM KARST IN THE OLVERA AREA (CADIZ PROVINCE, ANDALUSIA, SPAIN)

open access: yes, 2009
In the Olvera area (Cádiz Province, Andalusia, Spain) different karstic lithologies (preferentially carbonates and gypsum) are recognizable, relating to rainfall values of the zone and producing a karst complex of a certain interest.
F. J. Gracia Prieto   +2 more
core  

Water Recharge of Jinan Karst Springs, Shandong, China

open access: yes, 2020
As the main scavenge port of groundwater in the karst water system, most of the karst springs affected by human activities experienced discharge attenuation phenomenon in the north of China.
Liting Xing   +7 more
core   +1 more source

The Earth's Greatest Porous Media

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract How deeply does modern meteoric water circulate into the continental crust? How deep is the Earth's Critical Zone (CZ), the top layer of the continental lithosphere that co‐evolves with the atmosphere, hydrosphere, and biosphere, extending from vegetation canopy down to fresh bedrock and the base of active groundwater circulation?
Ying Fan   +3 more
wiley   +1 more source

Study on the mechanism of water inrush disasters in overlying karst tunnels under damage-seepage coupling

open access: yes河南理工大学学报. 自然科学版
ObjectivesTo analyze the impact of overlying karst caves on tunnels, this study investigates the law of water inrush disasters in overlying karst tunnels under damage-seepage coupling.MethodsBased on the Shuangbei Tunnel project in Chongqing, a rock mass
LIN Zhibin   +4 more
doaj   +1 more source

Four Decades of Research at the MADE Site and Beyond: Advancing the Understanding and Modeling of Solute Transport in Heterogeneous Media

open access: yesReviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo   +8 more
wiley   +1 more source

Integrating Sentinel-1 SAR and Machine Learning Models for Optimal Soil Moisture Sensor Placement at Catchment Scale

open access: yesRemote Sensing
Accurate calibration and validation of remote sensing soil moisture products critically depend on high-quality in situ measurements. However, effectively capturing representative soil moisture patterns across heterogeneous catchments using ground-based ...
Yi Xie   +3 more
doaj   +1 more source

A Robust AHP–GIS Based Flood Susceptibility Mapping Using Stochastic Hill‐Climbing Algorithm

open access: yesJournal of Flood Risk Management, Volume 19, Issue 4, December 2026.
ABSTRACT Flooding is one of the most frequent and devastating natural hazards affecting urban areas globally, leading to considerable social, economic, and environmental impacts. In the present study, a novel framework for flood susceptibility mapping is proposed using the stochastic Hill‐Climbing (SHC) method in the Analytical Hierarchy Process (AHP ...
Akhilesh Poyam   +2 more
wiley   +1 more source

Proceedings of the 2002 U.S. Geological Survey Karst Interest Group, Shepherdstown, West Virginia August 20-22, 2002 USGS Karst Interest Group USGS Water-Resources Investigations Report 02-4174

open access: yes, 2002
Contents: Introduction and Acknowledgments -- Agenda.. Integrating Science: Overview of background resources on karst research emphasizing obscure and grey area documents / Barry F. Beck -- National Cave and Karst Research Institute-Progress in the
Kuniansky, Eve L.   +1 more
core  

Introduction to the Dinaric Karst

open access: yes, 2010
Dinaric karst is expansive, 800 km long and up to 150 km wide area of karst, which extends over majority of Dinaric mountains and therefore also over the southwestern part of Slovenia.

core   +1 more source

The impact of seasonal variations in inner bark width and xylem growth on irreversible annual stem diameter measurements

open access: yesPlant Biology, Volume 28, Issue 7, Page 2368-2380, December 2026.
The seasonal variation in inner bark width differed from that of xylem growth, indicating that xylem phenology cannot be reliably assessed without cellular observations. Abstract To better interpret continuous xylem growth measurements from dendrometers, we evaluated how the widths of developing xylem and phloem, along with seasonal trends in inner ...
J. Gričar, K. Eler
wiley   +1 more source

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