Results 11 to 20 of about 15,235 (136)

British–Irish Ice Sheet and polar front history of the Goban Spur, offshore southwest Ireland over the last 250 000 years

open access: yesBoreas, Volume 52, Issue 4, Page 476-497, October 2023., 2023
Deep Sea Drilling Program (DSDP) Site 548 was cored in 1984 at a water depth of 1256 m on the Goban Spur, offshore southwest Ireland. Coring retrieved a ~100‐m‐thick Pleistocene contourite sequence. This study uses planktonic foraminiferal assemblage and benthic foraminiferal oxygen isotope analyses to establish an age model for the upper 40 m of this ...
Stanislaus G. Fabian   +2 more
wiley   +1 more source

Dynamics of Air Flow in Partially Water‐Saturated Porous Media

open access: yesReviews of Geophysics, Volume 61, Issue 2, June 2023., 2023
Abstract Dynamics of flowing air in partially water‐saturated, porous geological formations are governed by a wide range of forces and parameters. These dynamics are reviewed in the contexts of flow patterns that arise and the corresponding applicability of diverse modeling approaches.
Ilan Ben‐Noah   +2 more
wiley   +1 more source

Disruptive Role of Vertical Land Motion in Future Assessments of Climate Change‐Driven Sea‐Level Rise and Coastal Flooding Hazards in the Chesapeake Bay

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 4, April 2023., 2023
Abstract Future projections of sea‐level rise (SLR) used to assess coastal flooding hazards and exposure throughout the 21st century and devise risk mitigation efforts often lack an accurate estimate of coastal vertical land motion (VLM) rate, driven by anthropogenic or non‐climate factors in addition to climatic factors. The Chesapeake Bay (CB) region
Sonam Futi Sherpa   +2 more
wiley   +1 more source

Revealing large‐scale parasite ranges: An integrated spatiotemporal database and multisource analysis of the winter tick

open access: yesEcosphere, Volume 14, Issue 1, January 2023., 2023
Abstract Concerns that climate warming may drive the spread of ectoparasites into previously uninhabited areas have increased the need for baseline knowledge of their distributional history. For species of wildlife health concern, presence data are often lacking or outdated, thus limiting our ability to assess range changes and subsequent host impacts.
Emily S. Chenery   +4 more
wiley   +1 more source

Tooth marker of ecological abnormality: The interpretation of stress in extinct mega herbivores (proboscideans) of the Siwaliks of Pakistan

open access: yesEcology and Evolution, Volume 12, Issue 11, November 2022., 2022
Enamel hypoplasia is a tooth marker of ecological abnormality which can also be used in fossil animals to evaluate the likelihood of extinctions. The Siwalik paleoenvironment is being tried to assess by using teeth of the fossil proboscideans. Abstract Climate affects living ecosystems and defines species physiology.
Muhammad Ameen   +4 more
wiley   +1 more source

Dispersal without drivers: Intrinsic and extrinsic variables have no impact on movement distances in a terrestrial amphibian

open access: yesEcology and Evolution, Volume 12, Issue 10, October 2022., 2022
Dispersive movements are often thought to be multicausal. In this study, we assessed the amount of variation in 24 h movement distances that could be accounted for by pontial drivers of displacement using 20 years of data on Fowler's Toads (Anaxyrus fowleri). We conclude that movements in this population, over all spatial scales, cannot be explained by
Nathalie Jreidini, David M. Green
wiley   +1 more source

Hydrologic modification and channel evolution degrades connectivity on the Atchafalaya River floodplain

open access: yesEarth Surface Processes and Landforms, Volume 47, Issue 7, Page 1790-1807, 15 June 2022., 2022
Dredging and channel erosion in the Atchafalaya River likely changed the river/floodplain connectivity since 1960. We examined: (1) stage/discharge relationships; (2) hydroperiods; (3) discharge distribution; and (4) channel cross‐sections and floodplain elevations.
Daniel E. Kroes   +5 more
wiley   +1 more source

Historical tide gauge sea‐level observations in Alicante and Santander (Spain) since the 19th century

open access: yesGeoscience Data Journal, Volume 8, Issue 2, Page 144-153, November 2021., 2021
Pictures of the tide gauges used at Santander and Alicante: Adie floating gauge (a) and Mier syphon tide gauge (a) and Thomson floating gauge (b). Abstract A set of historical tide gauge sea‐level records from two locations in Santander (Northern Spain) and Alicante (Spanish Mediterranean coast) have been recovered from logbooks stored in national ...
Marta Marcos   +5 more
wiley   +1 more source

Geologic quadrangle map no. 47 [PDF]

open access: yes, 1978
Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
core   +1 more source

Radial Anisotropy in East Asia From Multimode Surface Wave Tomography

open access: yesJournal of Geophysical Research: Solid Earth, Volume 126, Issue 7, July 2021., 2021
Abstract We present a model of radial anisotropy in the crust and upper mantle of East Asia from a combination of new group velocity measurements and previously published surface wave dispersion data sets. Our combined data set ranges 5–375 s period and contains dispersion data up to the fifth overtone.
M. Witek   +4 more
wiley   +1 more source

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