Results 11 to 20 of about 161 (103)
Anthropogenic Decline of African Dust: Insights From the Holocene Records and Beyond. [PDF]
Geophys Res Lett, 2020 Abstract African dust exhibits strong variability on a range of time scales. Here we show that the interhemispheric contrast in Atlantic SST (ICAS) drives African dust variability at decadal to millennial timescales, and the strong anthropogenic increase of the ICAS in the future will decrease African dust loading to a level never seen during the ...
Yuan T +5 more
europepmc +2 more sources
Global warming and coastal protected areas: A study on phytoplankton abundance and sea surface temperature in different regions of the Brazilian South Atlantic Coastal Ocean. [PDF]
Ecol EvolThe Baleia Franca Environmental Protection Area spans 3872 km2, featuring extensive preserved coastal and marine zones in Brazil's South Atlantic. Preliminary satellite data indicate that this region might have experienced a slightly lower rate of sea surface temperature (SST) change over recent decades compared to neighboring states.
da Silveira Bueno C +3 more
europepmc +2 more sources
How Can Phytoplankton Pigments Be Best Used to Characterize Surface Ocean Phytoplankton Groups for Ocean Color Remote Sensing Algorithms? [PDF]
J Geophys Res Oceans, 2019 Abstract High‐performance liquid chromatography (HPLC) remains one of the most widely applied methods for estimation of phytoplankton community structure from ocean samples, which are used to create and validate satellite retrievals of phytoplankton community structure.
Kramer SJ, Siegel DA.
europepmc +2 more sources
ENSO Modulates Mean Currents and Mesoscale Eddies in the Caribbean Sea
Geophysical Research Letters, Volume 50, Issue 15, 16 August 2023., 2023 Abstract Although El Niño‐Southern Oscillation (ENSO) and its global impacts through teleconnection have been known for decades, if and how the mean currents and mesoscale eddies in the Caribbean Sea are linked to ENSO remains an open question. Here, by analyzing satellite observations and an ocean reanalysis product, we found a close connection ...
Minghai Huang +3 more
wiley +1 more source
Journal of Quaternary Science, Volume 38, Issue 5, Page 750-766, July 2023., 2023 ABSTRACT Lake Chalco, in Central Mexico, has a long diatom record which provides an excellent opportunity to document the biotic and hydrological responses of this ecosystem to orbital‐ and millennial‐scale climatic variability during the last 150 ka. Detrended correspondence analysis was used to evaluate the ecological turnover and to identify diatom ...
Diana Avendaño +3 more
wiley +1 more source
Reviews of Geophysics, Volume 59, Issue 4, December 2021., 2021 Abstract Tropical hydroclimatic events, characterized by extreme regional rainfall anomalies, were a recurrent feature of marine isotope stages 2–4 and involved some of the most abrupt and dramatic climatic changes in the late Quaternary. These anomalies were pervasive throughout the tropics and resulted from the southward displacement of the Hadley ...
Raymond S. Bradley, Henry F. Diaz
wiley +1 more source
Sedimentology, Volume 68, Issue 6, Page 2606-2648, October 2021., 2021 Abstract In tropical and sub‐tropical mixed siliciclastic–carbonate depositional systems, fluvial input and in situ neritic carbonate interact over space and time. Despite being the subject of many studies, controls on partitioning of mixed sediments remains controversial.
Gianni Mallarino +10 more
wiley +1 more source
Sulfur cycling in oceanic oxygen minimum zones
Limnology and Oceanography, Volume 66, Issue 6, Page 2360-2392, June 2021., 2021 Abstract The sulfur cycle is an important, although understudied facet of today's modern oxygen minimum zones (OMZs). Sulfur cycling is most active in highly productive coastal OMZs where sulfide‐rich sediments interact with the overlying water column, forming a tightly coupled benthic‐pelagic sulfur cycle.
Cameron M. Callbeck +7 more
wiley +1 more source
Synchronous Marine and Terrestrial Carbon Cycle Perturbation in the High Arctic During the PETM
Paleoceanography and Paleoclimatology, Volume 36, Issue 4, April 2021., 2021 Abstract The Paleocene‐Eocene Thermal Maximum (PETM; 56 Ma) is considered to be one of the best analogs for future climate change. The carbon isotope composition (δ13C) of n‐alkanes derived from leaf waxes of terrestrial plants and marine algae can provide important insights into the carbon cycle perturbation during the PETM.
Ying Cui +4 more
wiley +1 more source
Sustainable Observations of the AMOC: Methodology and Technology
Reviews of Geophysics, Volume 58, Issue 1, March 2020., 2020 Abstract The Atlantic Meridional Overturning Circulation (AMOC) is a key mechanism of heat, freshwater, and carbon redistribution in the climate system. The precept that the AMOC has changed abruptly in the past, notably during and at the end of the last ice age, and that it is “very likely” to weaken in the coming century due to anthropogenic climate ...
G. D. McCarthy +17 more
wiley +1 more source