Results 81 to 90 of about 3,859 (245)

Auroral Asymmetry Associated With the South Atlantic Anomaly

Geophysical Research Letters
Abstract The South Atlantic anomaly (SAA) exerts a weakening effect on magnetic field strength on Earth, however, little is known of its effect on the auroral spatial distribution and temporal evolution. Using Defense Meteorological Satellite Program/Special Sensor Ultraviolet Spectrographic Imager ultraviolet data spanning 2016–2023,
Wenrui Wang, Keyi Huang, Qiugang Zong, Ying Liu, Li Li, Yuguang Ye   +5 more
openaire   +1 more source

Integrating fossil data in ecological niche models to improve predictions of future habitat of Caribbean corals

Conservation Biology, EarlyView.
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams, Fernando Machado‐Stredel, Rowan C. Martindale, Corinne E. Myers   +3 more
wiley   +1 more source

South Atlantic Surface Boundary Current System during the Last Millennium in the CESM-LME: The Medieval Climate Anomaly and Little Ice Age

Geosciences, 2019
Interocean waters that are carried northward through South Atlantic surface boundary currents get meridionally split between two large-scale systems when meeting the South American coast at the western subtropical portion of the basin.
Fernanda Marcello, Ilana Wainer, Peter R. Gent, Bette L. Otto-Bliesner, Esther C. Brady   +4 more
doaj   +1 more source

Extreme weather and economic crisis in the 1430s in England, and the implications for tenurial change

The Economic History Review, EarlyView.
Abstract The 1430s were characterized by extreme weather conditions, food and fodder shortages, and high mortalities among animals and humans, although the severity of events and their consequences in England have received limited attention. The economic downturn and the depressed customary land market in this decade marked the beginning of the Great ...
Mark Bailey
wiley   +1 more source

Relationship between the southern annular mode and southern hemisphere atmospheric systems Relação entre o modo anular sul e os sistemas atmosféricos no hemisfério sul

Revista Brasileira de Meteorologia, 2009
Seasonal relationship between the Southern Annular Mode (SAM) and the spatial distribution of the cyclone systems over Southern Hemisphere is investigated for the period 1980 to 1999.
Michelle Simões Reboita, Tércio Ambrizzi, Rosmeri Porfírio da Rocha   +2 more
doaj   +1 more source

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

Journal of Fish Biology, EarlyView.
Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu, Philip R. Hollyman, Jennifer J. Freer, M. L. Romero Martínez, José P. Queirós, Timothy Jones, Richard A. Phillips, José C. Xavier, Martin A. Collins   +8 more
wiley   +1 more source

Estimating Patagonian toothfish (Dissostichus eleginoides) length at first maturity from their age, sex and temperature experience around South Georgia

Journal of Fish Biology, EarlyView.
Abstract Patagonian toothfish (Dissostichus eleginoides) are a long‐lived, slow‐growing deep‐sea species endemic to the Southern Hemisphere and the focus of longline fisheries managed to ensure sustainable exploitation. Managing the fisheries relies on accurate stock assessments that include pertinent biological and exploitation processes.
Jessica E. Marsh, Sarah R. Alewijnse, Stephen D. Gregory, Philip R. Hollyman, Marta Söffker   +4 more
wiley   +1 more source

X ray measurements at the South Atlantic Magnetic Anomaly

Journal of Geophysical Research: Space Physics, 1986
Balloon‐borne experiments using omnidirectional scintillation detectors that measured X ray with energies between 30 and 150 keV in the atmosphere were conducted during 1981 from São José dos Campos‐Brazil (geographic coordinates 23°12′S, 45°51′W and L ∼ 1.13).
O. Pinto, W. D. Gonzalez
openaire   +2 more sources

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

Journal of Fish Biology, EarlyView.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira, Maelin da Silva, Chrystian Aparecido Grillo Haerter, Sandra Mariotto, Liano Centofante, Eliana Feldberg, Orlando Moreira Filho, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Roberto Laridondo Lui   +9 more
wiley   +1 more source

X ray microbursts in the South Atlantic magnetic anomaly

Journal of Geophysical Research: Space Physics, 1996
Balloon‐borne X ray measurements with high time resolution were carried out in the South Atlantic magnetic anomaly to investigate the fine structure of the precipitation in this region. Measurements were obtained on two balloon flights launched from Cachoeira Paulista, São Paulo, Brazil, on January 26 and February 1, 1994, and were supported by onboard
O. Pinto, I. R. C. A. Pinto, O. Mendes
openaire   +2 more sources