Results 11 to 20 of about 3,859 (245)

The Impact of the South Atlantic Anomaly on the Aurora System

open access: yesGeophysical Research Letters
The South Atlantic Anomaly (SAA) refers to a region where the strength of the magnetic field is notably weaker compared to a dipole field. While previous studies have primarily focused on its effects on the inner radiation belt, this study investigates ...
Z.‐Y. Liu   +8 more
doaj   +2 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+8 more sources

Review of secular variation studies in the South Atlantic Anomaly

open access: yes地球与行星物理论评
The South Atlantic Anomaly (SAA) is one of the most remarkable structural features of the Earth's magnetic field. The region is characterized by weak magnetic field intensity.
Yaochen Yue   +5 more
doaj   +2 more sources

Causes of the 2015 North Atlantic cold anomaly in a global state estimate [PDF]

open access: yesOcean Science, 2022
The subpolar North Atlantic is an important part of the global ocean and climate system, with SST variability in the region influencing the climate of Europe and North America.
R. N. C. Sanders   +4 more
doaj   +1 more source

Investigation on the characteristics of the South Atlantic Anomaly [PDF]

open access: yes, 2021
Abstract. The South Atlantic Anomaly (SAA) is known for its weak Earth’s magnetic field strength. In this research, power spectrum analysis method was applied on the Horizontal intensity of the Earth’s magnetic field with data sample rate used at 1 min. Four active periods on 18 March 2012, 10 March 2012, 25 April 2012, and 30 June 2013 which represent
Nasuddin, Khairul Afifi   +2 more
openaire   +2 more sources

Asymmetric Relationship Between Mid-latitude Eurasian Circulation and Summer Rainfall in Hong Kong in Different Phases of ENSO

open access: yesFrontiers in Earth Science, 2021
During the period 1979–2019, the interannual variation of summer rainfall in Hong Kong (HK), located on the South China coast, is weakly correlated with tropical forcing, including the El Niño/Southern Oscillation (ENSO).
Yana Li   +3 more
doaj   +1 more source

Stalagmite paleomagnetic record of a quiet mid-to-late Holocene field activity in central South America

open access: yesNature Communications, 2022
The South Atlantic Anomaly has the lowest intensity of the geomagnetic field. A stalagmite, from Brazil shows through its magnetic remanence that in mid-to-late Holocene this anomaly, was not being expressed or recurrent at surface in millennial scale.
Plinio Jaqueto   +11 more
doaj   +1 more source

Sensitivity of the Atlantic meridional overturning circulation to South Atlantic freshwater anomalies [PDF]

open access: yesClimate Dynamics, 2012
The final publication is available at springerlink.com Climate Dynamics, Volume 39, Numbers 9-10 (2012), 2291 ...
Cimatoribus, Andrea A.   +3 more
openaire   +5 more sources

Drift rate of the South Atlantic Anomaly [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 1997
A portion of the secular change of the geomagnetic field leads to a drift of the trapped belt South Atlantic Anomaly (SAA). If this drift is not taken into account, models of the trapped particle population give erroneous predictions of particle fluxes.
openaire   +2 more sources

Late Cretaceous Ridge Reorganization, Microplate Formation, and the Evolution of the Rio Grande Rise – Walvis Ridge Hot Spot Twins, South Atlantic Ocean

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Rio Grande Rise (RGR) and Walvis Ridge (WR) are South Atlantic large igneous provinces (LIPs), formed on the South American and African plates, respectively, mainly by volcanism from a hot spot erupting at the Mid‐Atlantic Ridge (MAR) during the Late ...
William W. Sager   +4 more
doaj   +1 more source

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