Results 71 to 80 of about 7,904 (219)

The Constraint of Crewed Mars Missions Based on Current Radiation Dose Measurements

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Crewed missions to Mars will be a milestone of future space exploration programs. However, the absence of Earth's magnetic field leaves astronauts directly exposed to unattenuated energetic particles in deep space, primarily galactic cosmic rays (GCRs), resulting in significantly higher radiation levels and enhanced health risks. Understanding
Chao Zhang, Weihao Liu, Jingnan Guo, Mikhail Dobynde, Robert F. Wimmer‐Schweingruber   +4 more
wiley   +1 more source

L-band scintillations and calibrated total electron content gradients over Brazil during the last solar maximum

Journal of Space Weather and Space Climate, 2015
This work presents a contribution to the understanding of the ionospheric triggering of L-band scintillation in the region over São Paulo state in Brazil, under high solar activity.
Cesaroni Claudio, Spogli Luca, Alfonsi Lucilla, De Franceschi Giorgiana, Ciraolo Luigi, Galera Monico Joao Francisco, Scotto Carlo, Romano Vincenzo, Aquino Marcio, Bougard Bruno   +9 more
doaj   +1 more source

Extrapolation of Airborne Polarimetric and Interferometric SAR Data for Validation of Bio-Geo-Retrieval Algorithms for Future Spaceborne SAR Missions [PDF]

, 2009
Spaceborne SAR system concepts and mission design is often based on algorithms developed and the experience gathered from airborne SAR experiments and associated dedicated campaigns. However, airborne SAR systems have better performance parameters than
Floury, Nicolas, Lee, Seung-Kuk, Papathanassiou, Konstantinos, Scheiber, Rolf   +3 more
core  

Design of GNSS Receiver Autonomous Integrity Monitoring Platform under Ionospheric Scintillation [PDF]

, 2022
Qi Liu, Lunlong Zhong, Jing Zhao
openalex   +1 more source

Ionospheric scintillation studies [PDF]

The diffracted field of a monochromatic plane wave was characterized by two complex correlation functions. For a Gaussian complex field, these quantities suffice to completely define the statistics of the field.
Freemouw, E. J., Rino, C. L.
core   +1 more source

The Murchison Widefield Array: Design Overview [PDF]

, 2009
The Murchison Widefield Array (MWA) is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations, but is initially focused on three key science ...
Benkevitch, Leonid, Bowman, Judd D., Briggs, Frank H., Bunton, John D., Burns, Steven, Cappallo, Roger J., Corey, Brian E., Derome, Mark, Deshpande, Avinash, deSouza, Ludi, Doeleman, Sheperd S., Gopalakrishna, M. R., Greenhill, Lincoln J., Herne, David, Hewitt, Jacqueline N., Kamini, P. A., Kasper, Justin C., Kincaid, Barton B., Kocz, Jonathan, Kowald, Errol, Kratzenberg, Eric, Kumar, Deepak, Lonsdale, Colin J., Lynch, Mervyn J., Madhavi, S., Matejek, Michael, Mitchell, Daniel, Morales, Miguel F., Morgan, Edward, Oberoi, Divya, Ord, Steven, Pathikulangara, Joseph, Prabu, T., Rogers, Alan E. E., Roshi, Anish, Salah, Joseph E., Sault, Robert J., Shankar, N. Udaya, Srivani, K. S., Stevens, Jamie, Tingay, Steven, Vaccarella, Annino, Waterson, Mark, Wayth, Randall B., Webster, Rachel L., Whitney, Alan R., Williams, Andrew, Williams, Christopher   +47 more
core   +3 more sources

Analysis on Global Es Layer Response to the May 2024 Geomagnetic Storm Through a Combination of Tianmu‐1 and COSMIC‐2 Radio Occultation Observations

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The sporadic E (Es) layer, a key manifestation of ionosphere‐neutral atmosphere coupling, is highly sensitive to geomagnetic storms. Using more than 25,000 daily radio occultation profiles from the Tianmu‐1 and COSMIC‐2 constellations, this study investigates the global response of the Es layer to the May 2024 storm.
Sheng Guo, Sicheng Wang, Lei Shi, Zheng Sheng, Jia Bu   +4 more
wiley   +1 more source

Scintillation observations at Ancon and Jicamarca Observatories [PDF]

Satellite scintillation and diffraction pattern scale size distribution from ionospheric ...
Guillen, A., Pomalaza, J., Sandoval, J., Tisnado, G., Woodman, R. F.   +4 more
core   +1 more source

On the Properties of and Ionospheric Conditions Associated With a Mid‐Latitude Scintillation Event Observed Over Southern United States

, 2021
F. S. Rodrigues, Josemaria Gomez Socola, Alison de Oliveira Moraes, C. R. Martinis, D. A. Hickey   +4 more
openalex   +1 more source

Ionospheric Scintillation Activity Over Canada in 2019–2023 and Its Potential Influence on Wide Area Augmentation System (WAAS) Navigation Services for Aviation

Space Weather
Ionospheric scintillation caused by space weather impacts the accuracy and availability of GNSS services and is considered a natural hazard for aviation and other GNSS users. Increased solar activity in 2021–2023, attributed to the ascending phase of the
L. Nikitina, R. A. D. Fiori, K. Sievers, A. Rynard, Q. Ciardelli   +4 more
doaj   +1 more source