Results 51 to 60 of about 10,150 (229)

Frequency‐Dependent Acoustic Reflection Coefficients of Flat Ground Assessed Using the Sonic Boom From the OSIRIS‐Rex Sample Return Capsule Recorded on Free Flying Balloons

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Low frequency sound can travel great distances in planetary atmospheres. When these waves reflect off the air/ground interface, energy may be absorbed or transferred to mechanical waves in the subsurface. This study describes the direct and reflected acoustic wave generated by the re‐entry of the OSIRIS‐REx Sample Return Capsule captured on a ...
Daniel C. Bowman   +12 more
wiley   +1 more source

Comparison of Soil Mineralogy From EMIT Imaging Spectroscopy and Ground‐Based Measurements in the Deserts of Southern California

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract The highly variable spatial composition of desert soils remains a major source of uncertainty in estimates of dust radiative forcing. Existing soil mineralogy data sets used in climate models are limited by sparse ground observations and coarse spatial resolution.
Xuan Liu   +6 more
wiley   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 6, Page 1451-1463, June 2026.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

Groundwater recharge in desert playas: current rates and future effects of climate change

open access: yesEnvironmental Research Letters, 2018
Our results from playas, which are topographic low areas situated in closed-catchments in drylands, indicated that projected climate change in Southwestern USA would have a net positive impact over runon and groundwater recharge beneath playas.
Owen P McKenna, Osvaldo E Sala
doaj   +1 more source

Green Turtle Chelonia mydas Spatial Use Within the Gorgona National Natural Park, Colombian Pacific: Implications for Local Conservation

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
This study explores the spatial ecology of green turtles within the Gorgona National Natural Park (GNNP), providing insights into habitat preferences, movement patterns, and conservation implications for this vulnerable species in the Colombian Pacific. Ten green turtles were tracked in the GNNP using satellite telemetry, with tracking duration ranging
Diego F. Amorocho   +4 more
wiley   +1 more source

Playas of inland Australia [PDF]

open access: yes, 2010
Playas, mostly in the form of salinas, are characteristic of the Australian arid zone. Many are associated with lunettes in sebkha complexes or assemblages and can be attributed to the deflation of bare alluvial flats.
Bourne, J. A.   +4 more
core  

“De Beach Belong to We!” Socio-economic Disparity and Islanders’ Rights of Access to the Coast in a Tourist Paradise

open access: yesOñati Socio-Legal Series, 2015
The Caribbean islands share a history of plantation economy in which the "1%" not only controlled the natural resources and economies of the region, but also owned the majority of the "99%" who were enslaved.
Christine Toppin-Allahar
doaj  

Evaluación de riesgo sanitario de las playas de Costa Rica Periodo 2010-2017

open access: yesTecnología en Marcha, 2019
Realizar la evaluación de riesgo sanitario en 184 playas ubicadas en los litorales atlántico y pacífico de Costa Rica, mediante la aplicación del “Índice de Riesgo Sanitario”.
Darner A. Mora-Alvarado   +2 more
doaj   +1 more source

Rapid changes of the lava‐delta coastlines formed by the 2021 volcanic eruption on La Palma, Canary Islands

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 6, June 2026.
A new coastline formed during the 2021 eruption of La Palma quickly eroded, becoming crenellated and with pocket beaches, then retreated more gradually as resistant interiors of the lava were exposed. In contrast, a second thicker lava delta changed more gradually, highlighting the importance of lithology to coastal erosion.
Zhongwei Zhao   +6 more
wiley   +1 more source

El Turismo Local en el Cantón General Villamil Playas: Una Reflexión desde la normativa gubernamental.

open access: yesTurismo, Desarrollo y Buen Vivir. Revista de Investigación de la Ciencia Turística-RICIT, 2017
De acuerdo a las cifras de turismo interno y receptor del Ministerio de Turismo del Ecuador obtenidas en el año 2015, se afirma que el turismo de sol y playa es la modalidad que mayor flujo de turistas a nivel nacional genera en la actualidad, sin ...
César Andrés Vélez Del Hierro   +2 more
doaj  

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