Results 11 to 20 of about 4,332,695 (255)

Manned Space Flight Network Telemetry System

open access: yes, 1970
International Telemetering Conference Proceedings / October 13-15, 1970 / International Hotel, Los Angeles, CaliforniaThis paper discusses the Manned Space Flight Network (MSFN) Telemetry System as it has been developed through the Mercury, Gemini, and ...
Underwood, Thomas C., Jr.
core   +5 more sources

Heliocentric Distance and Solar Activity Dependence of Sustained Quasi-radial Interplanetary Magnetic Field Occurrence

open access: yesThe Astrophysical Journal, 2023
Planets close to their stars experience an interplanetary magnetic field (IMF) that is dominantly quasi-radial. Our solar system serves as a laboratory to study how the occurrence of quasi-radial IMF varies away from the star and under different stellar ...
Brandon L. Burkholder   +7 more
doaj   +1 more source

Implications of carbon monoxide bias for methane lifetime and atmospheric composition in chemistry climate models [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
A low bias in carbon monoxide (CO) at northern high and mid-latitudes is a common feature of chemistry climate models (CCMs) that may indicate or contribute to a high bias in simulated OH and corresponding low bias in methane lifetime. We use simulations
S. A. Strode   +5 more
doaj   +1 more source

Mitigating the Negative Effects of Stress in Space Flight: ATransactional Approach [PDF]

open access: yes, 2003
The primary goal of this theoretical paper is to highlight how a transactional approach to investigating stressor effects during space flight can lead to a greater understanding of the complex processes by which humans adapt psychologically and ...
Cuevas, Haydee M.   +2 more
core   +1 more source

Raman LIDAR detection of cloud base

open access: yesGeophysical Research Letters, 2000
Advantages introduced by Raman lidar systems for cloud base determination during precipitating periods are explored using two case studies of light rain and virga conditions.
Belay Demoz   +5 more
doaj   +1 more source

Examples of fast solar wind transients, their sources and the forecast of possible geomagnetic impact

open access: yesGeofísica Internacional, 2000
Presentamos ejemplos de la observación interplanetaria de expulsiones de materia solar, incluyendo posibles nubes magnéticas, que generaron choques magnetosónicos de alta velocidad en el medio interplanetario.
D. Berdichevsky   +10 more
doaj   +1 more source

Adaptive Antenna Pattern Notching of Interference in Synthetic Aperture Radar Data Using Digital Beamforming

open access: yesRemote Sensing, 2019
Radio Frequency Interference (RFI) is a growing problem in Synthetic Aperture Radar (SAR) systems as scientific motivations push the radars to lower frequencies and as more wireless services share the frequency spectrum.
Tobias Bollian   +4 more
doaj   +1 more source

Augmenting the Standard Operating Procedures of Health and Air Quality Stakeholders With NASA Resources

open access: yesGeoHealth, 2021
The combination of air quality (AQ) data from satellites and low‐cost sensor systems, along with output from AQ models, have the potential to augment high‐quality, regulatory‐grade data in countries with in situ monitoring networks and provide much ...
Bryan N. Duncan   +8 more
doaj   +1 more source

Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Aerosol variations and trends over different land and ocean regions from 1980 to 2009 are analyzed with the Goddard Chemistry Aerosol Radiation and Transport (GOCART) model and observations from multiple satellite sensors and available ground-based ...
M. Chin   +24 more
doaj   +1 more source

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