Results 141 to 150 of about 54,255 (262)

Source‐to‐sink sediment transport reversals during glacial sea‐level lowstands sustain soil formation on pericoastal carbonate terrains

open access: yesSedimentology, Volume 73, Issue 5, Page 1892-1910, August 2026.
ABSTRACT Understanding the processes that drive soil formation is crucial for developing sustainable land‐use strategies, as changing land‐use practices and climate change exacerbate soil erosion. The formation of substantial arable soils on carbonate bedrock requires substantial dust accretion as the underlying bedrock lacks siliciclastic material. In
Daniel Palchan   +3 more
wiley   +1 more source

Sahara Libre \ as-Sahara' al-hurra [PDF]

open access: yes, 1977
Ausgaben der Zeitung Sahara Libre / aṣ-Ṣaḥarāʾ al-ḥurra in französischer und arabischer Sprache aus den Jahren 1977 bis 1978 mit Artikeln vorrangig zum Thema ...

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Estimating Uncertainty of PMW‐Based Convective Fraction Product

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Convective precipitation plays a crucial role in the Earth's hydrological cycle, vertical thermodynamic transport, and natural weather hazards. While satellite passive microwave (PMW) observations offer broad spatial coverage essential for global precipitation monitoring, uncertainties in PMW‐derived precipitation class (i.e., regime) remain ...
Lei Ji   +2 more
wiley   +1 more source

Marine Aerosol to Refinery Emissions: Transport and Evolution of CCN in the Houston Metropolitan Area and Their Impact on Cloud Formation

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract The Experiment of Sea Breeze Convection, Aerosols, Precipitation and Environment (ESCAPE) campaign aimed to untangle the impacts of contrasting aerosol sources on cloud microphysical properties within deep convective cells using airborne observations with the National Research Council Canada (NRC) Convair CV‐580 research aircraft.
G. C. Roberts   +9 more
wiley   +1 more source

Dark Land Surfaces Allow for Refugia That Could Support Photosynthetic Life on the Surface of Snowball Earth

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract Photosynthetic eukaryotic algae survived the Neoproterozoic Snowball Earth events, indicating that liquid‐water refugia existed somewhere on the surface. We examine the potential for refugia at the coldest time of a snowball event, before CO2 had risen and with high‐albedo ice on the frozen ocean, before it became darkened by dust deposition ...
Greta E. M. Shum   +5 more
wiley   +1 more source

Record‐Breaking Easterly Dust Transport From North Africa to the Arctic: An Observational Study

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Mineral dust drives Arctic climate variability, but accurate source attribution remains difficult due to plume mixing from the different regions. Using observations and HYSPLIT modeling, we characterize a record‐breaking trans‐continental dust intrusion (March 13–19, 2013) traversing from North Africa to the Arctic. Distinct from single‐source
Yinzhan Chen   +7 more
wiley   +1 more source

An 8,000 Years Alpine Ice‐Core Record of Climate and Dust: The Role of Saharan Dust

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Transport of Saharan dust over Europe impacts climate and nutrient input to ecosystems, but its variability over the past is poorly documented and understood. Because Alpine ice potentially provides an archive of past dust deposition, here we used an ice core record of stable water isotopes and dust‐related chemical species from Dôme du Goûter
M. Legrand   +8 more
wiley   +1 more source

The impact of the Oceanic Anoxic Event 2 on resilient carbonate platforms: a multidisciplinary approach [PDF]

open access: yes
L'Evento Anossico Oceanico Cenomaniano-Turoniano 2 (OAE-2) è una delle principali perturbazioni del ciclo globale del carbonio nel Cretaceo, caratterizzato da temperature estremamente elevate e anossia oceanica diffusa (Schlanger e Jenkyns, 1976 ...
CARDELLI, SAHARA MARIA
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