Results 31 to 40 of about 3,931 (155)

Combined impact of summer NAO and northern Russian shortwave cloud radiative effect on Eurasian atmospheric circulation

open access: yesEnvironmental Research Letters, 2023
Based on ERA-Interim and CERES_SYN1deg Ed4.1 datasets, the combined influence of summer North Atlantic Oscillation (SNAO) and positive shortwave cloud radiative effect (SWCRE) events in northern Russia on Eurasian atmospheric circulation is investigated ...
Le Liu, Bingyi Wu, Shuoyi Ding
doaj   +1 more source

Energetic Proton Maps for the South Atlantic Anomaly [PDF]

open access: yes2007 IEEE Radiation Effects Data Workshop, 2007
A new set of flux intensity maps for energetic protons in the South Atlantic Anomaly (SAA) region is presented for the epoch 2000-2006 based on data from the compact environment anomaly sensor (CEASE) flown onboard the tri-service experiment-5 (TSX-5) satellite in a 410 km x 1710 km, 69 degree inclination orbit.
Ginet, Gregory P.   +3 more
openaire   +2 more sources

Impact of wind variations on surface variability over the Patagonian Continental Shelves [PDF]

open access: yesOcean Science
We study the impact of wind variability on sea surface temperature (SSTa), sea surface salinity (SSSa), and sea level anomaly (SLAa) over the Patagonian shelves around southern South America using satellite observations and the ERA5 reanalysis.
M. M. Urricariet   +7 more
doaj   +1 more source

Solar wind parameter and seasonal variation effects on the South Atlantic Anomaly using Tsyganenko Models

open access: yesEarth, Planets and Space, 2020
We studied the space weather effects on the South Atlantic Anomaly (SAA) magnetic response using Tsyganenko models. For the physical parameters characterizing the SAA, the study considered the minimum magnetic field, the location (longitude and latitude)
Kirolosse M. Girgis   +2 more
doaj   +1 more source

Comparação do Modelo IRI-79 para a Baixa Ionosfera com Dados de Refletividade de LF/VLF

open access: yesBrazilian Journal of Geophysics, 1986
Reflectivity data of the lower ionosphere in the region of the South Atlantic Geomagnetic Anomaly were collected by an oblique ionosonde of Low/Very Low Frequency, between August 1980 and July 1981.
Maria Sueli Moura   +1 more
doaj   +1 more source

Comparison between three implementations of automatic identification algorithms for the quantification and characterization of mesoscale eddies in the South Atlantic Ocean [PDF]

open access: yesOcean Science, 2011
Three methods for automatic detection of mesoscale coherent structures are applied to Sea Level Anomaly (SLA) fields in the South Atlantic. The first method is based on the wavelet packet decomposition of the SLA data, the second on the estimation of the
J. M. A. C. Souza   +2 more
doaj   +1 more source

Calibration and Initial Results of Space Radiation Dosimetry Using the iMESA‐R

open access: yesSpace Weather, 2020
The integrated Miniaturized Electrostatic Analyzer‐Reflight (iMESA‐R) is a space weather instrument designed to measure plasma density, temperature, and spacecraft charging, along with total ionizing dose and dose rate. A constellation consisting of five
C. A. Maldonado   +9 more
doaj   +1 more source

A North–South Dipole Response of the South Atlantic Convergence Zone During the Mid‐Holocene

open access: yesGeophysical Research Letters, 2023
The South Atlantic Convergence Zone (SACZ) profoundly modulates precipitation from central to southeastern Brazil in the present‐day climate. However, the understanding of its long‐term behavior responding to various climate forcings remains limited ...
Minn Lin Wong   +4 more
doaj   +1 more source

The global geomagnetic field over the historical era: what can we learn from ship-log declinations?

open access: yesEarth, Planets and Space, 2023
Modern geomagnetic field models are constructed from satellite and observatory data, while models on the millennial timescale are constructed from indirect records of thermoremanent and sedimentary origin.
Maximilian Schanner   +4 more
doaj   +1 more source

South Atlantic anomaly campaign

open access: yesEos, Transactions American Geophysical Union, 1982
Ever since the days of the first satellite observations of the fluxes of high‐energy particles in the South Atlantic Anomaly, there has been interest in the possible atmospheric effects of the precipitating particles. Recently, Gledhill and Hoffman (J. Geophys.
openaire   +1 more source

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