Results 121 to 130 of about 24,725 (256)

Understanding Climate Change and Anthropogenic Impacts on the Salinization of Low‐Lying Coastal Groundwater Systems

open access: yesEarth's Future
Fresh coastal groundwater is a valuable water resource of global significance, but its quality is threatened by saltwater intrusion. Excessive groundwater abstraction, sea‐level rise (SLR), land subsidence and other climate‐related factors are expected ...
Stephan L. Seibert   +3 more
doaj   +1 more source

An Overview of the Rock Art of AlUla: Tracing Changes in Content and Form Across 12,000 Years of Human History

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT Between 2018 and 2021, the Identification and Documentation of Immovable Heritage Assets (IDIHA) Project recorded over 19,000 rock art panels in the AlUla (al‐‘Ulā) region of north‐western Saudi Arabia. This study presents a chronological assessment of the corpus, drawing on superimpositions, datable motifs, inscriptions, and varnish formation,
Maria Guagnin   +3 more
wiley   +1 more source

Misconceptions About Caves and Karst: Common Problems and Educational Solutions [PDF]

open access: yes, 2007
Provides pedagogical insight concerning learners' pre-conceptions and misconceptions about groundwater, caves, karst The resource being annotated is: http://www.dlese.org/dds/catalog_DLESE-000-000-010-102 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

Sinking peatlands: Optimal control of subsidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Land subsidence threatens the living conditions of about 1.2 billion people worldwide in deltaic regions characterized by soft top soil. Economic activity in these areas requires lowering groundwater levels to keep the land sufficiently dry, which leaves future generations worse off by accelerating subsidence and increasing future costs.
Suphi Sen   +2 more
wiley   +1 more source

Comparitive assessment of the vulnerability and resilience of 10 deltas, synthesis report [PDF]

open access: yes
The proposed framework for delta assessment and especially the scorecards are intended to enhance awareness raising, discussion and prioritization on most relevant delta issues, in each delta but also in comparison with other deltas.
Bucx, T.   +3 more
core   +1 more source

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

open access: yesBoreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida   +5 more
wiley   +1 more source

Assessment and Spatial Modeling of Land Subsidence Hazard Using the LiCSBAS Model and Random Forest Algorithm (Case Study: Marvdasht Kharame Plain) [PDF]

open access: yesعلوم آب و خاک
In the future, the risk of land subsidence due to water resources shortage crisis and improper water resources management will become more and more dangerous.
M. Khajeh   +4 more
doaj  

Gypsum dissolution geohazards at Ripon, North Yorkshire, UK [PDF]

open access: yes, 2007
This guide is for a one-day field excursion to examine gypsum dissolution geohazards at Ripon in North Yorkshire. Gypsum is a highly soluble rock and under suitable groundwater flow conditions it can dissolve forming caves and karstic features including ...
Cooper, Anthony
core  

Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)

open access: yesBoreas, EarlyView.
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield high volumes of sediments, which usually exceed their transportation capacity.
Catharina Dieleman   +6 more
wiley   +1 more source

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