Results 31 to 40 of about 3,859 (245)

Solar cycle signatures in lightning activity [PDF]

Atmospheric Chemistry and Physics
The cross-correlation between annual lightning frequency and solar activity and the heliospheric magnetic field (HMF) is examined on a global scale using corrected data from the World Wide Lightning Location Network (WWLLN) for the period 2009 to 2022 ...
J. Chum, R. Langer, I. Kolmašová, I. Kolmašová, O. Lhotka, J. Rusz, I. Strhárský   +6 more
doaj   +1 more source

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

Environmental 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

Outreach, Investigation, Muons, and the South Atlantic Anomaly [PDF]

Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019), 2019
In May of 2018 and January of 2019, a collaborative group from the University of Notre Dame in the United States and the Pontifical Catholic University of Chile, Masterclass Institutes Collaborating in the Americas IV (MICA IV), travelled south from Santiago, Chile with two overlapping goals. The first was to take cosmic ray data at different latitudes
Kenneth Cecire, Salvador Carrillo, Jeffrey Chorny, Daniela Gayoso, Richards Gonzalez, Michael Haacke, Sebastian Olivares, Jeremy Wegner   +7 more
openaire   +1 more source

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

Earth, 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, Tohru Hada, Shuichi Matsukiyo   +2 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]

Ocean 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, C. de Boyer Montégut, P. Y. Le Traon   +2 more
doaj   +1 more source

Energetic Proton Maps for the South Atlantic Anomaly [PDF]

2007 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., Madden, Dan, Dichter, Bronislaw K., Brautigam G., D. H.   +3 more
openaire   +2 more sources

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

Space 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, R. Cress, P. Gresham, J. L. Armstrong, G. Wilson, D. Reisenfeld, B. Larsen, R. L. Balthazor, J. Harley, M. G. McHarg   +9 more
doaj   +1 more source

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

Geophysical 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, David S. Battisti, Xiaojuan Liu, Qinghua Ding, Xianfeng Wang   +4 more
doaj   +1 more source

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

Earth, 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, Lukas Bohsung, Clara Fischer, Monika Korte, Matthias Holschneider   +4 more
doaj   +1 more source

New geomagnetic field observations in the South Atlantic Anomaly region

Annals of Geophysics, 2009
Three new geomagnetic observatories have been established recently around the South Atlantic geomagnetic<br />Anomaly by GeoForschungsZentrum Potsdam(GFZ), Germany, in collaboration with other institutions.
Pieter Kotzé, Anne Hemshorn, Hans-Joachim Linthe, Mioara Mandea, Monika Korte, Edgard Ricaldi   +5 more
doaj   +1 more source