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Patagonian dust as a source of macronutrients in the Southwest Atlantic ocean
(Oceanography Society, 2018-12)
The role of Patagonian wind-borne dust as a source of macronutrients to the surface waters of the Southwest Atlantic Ocean was evaluated for the first time. During spring 2016, a series of experiments with dust was conducted ...
Present-Day Patagonian Dust Emissions: Combining Surface Visibility, Mass Flux, and Reanalysis Data
(AMER GEOPHYSICAL UNION, 2021)
The magnitude of the climatic forcing associated with mineral dust aerosols remains uncertain due in part to a lack of observations on dust sources. While modeling and satellite studies provide spatially extensive constraints, ...
Does Satellite Chlorophyll‐a Respond to Southernmost Patagonian Dust? A Multi‐Year, Event‐Based Approach
(Blackwell Publishing, 2020-12)
Mineral aerosols may affect global climate indirectly by enhancing net primary productivity (NPP) upon deposition to the oceans and associated atmosphere-to-ocean CO2 flux. This mechanism is hypothesized to have contributed ...
Modeling dust and soluble iron deposition to the South Atlantic Ocean
(American Geophysical Union, 2010-06)
The global chemical transport model GEOS-Chem, implemented with a dust-iron dissolution scheme, was used to analyze the magnitude and spatial distribution of mineral dust and soluble-iron (sol-Fe) deposition to the South ...
South American dust signature in geological archives of the Southern Hemisphere
(PAGES International Project Office, 2014-10)
Patagonian dust is the darling of researchers of paleoclimatic variability of southern South America. However, new chemical data from yet unexplored dust source areas allows for deeper investigation of the geological ...
Soluble iron inputs to the Southern Ocean through recent andesitic to rhyolitic volcanic ash eruptions from the Patagonian Andes
(American Geophysical Union, 2015-07)
Patagonia, due to its geographic position and the dominance of westerly winds, is a key area that contributes to the supply of nutrients to the Southern Ocean, both through mineral dust and through the periodic deposits ...
Tracking eolian dust with helium and thorium: Impacts of grain size and provenance
(Pergamon-Elsevier Science Ltd, 2016-02)
Reconstructions of the deposition rate of windblown mineral dust in ocean sediments offer an important means of tracking past climate changes and of assessing the radiative and biogeochemical impacts of dust in past climates. ...
Increased dust deposition in the Pacific Southern Ocean during glacial periods
(American Association for the Advancement of Science, 2014)
Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate
variability, but how it has varied temporally and geographically is underdetermined. Here, we
present data sets of ...
Ground/satellite observations and atmospheric modeling of dust storms originating in the high Puna-Altiplano deserts (South America): Implications for the interpretation of paleo-climatic archives
(American Geophysical Union, 2013-05-13)
This study provides a detailed description of the sources, transport, dispersion, and deposition of two major dust events originating from the high‐altitude subtropical Puna‐Altiplano Plateau (15?26°S; 65?69°W) in South ...