Results 61 to 70 of about 2,001 (206)

The Analysis on Space Radiation Environment and Effect of the KOMPSAT-2 Spacecraft(II): Single Event Effect [PDF]

Journal of Astronomy and Space Sciences, 2001
In this paper, space radiation environment and single event effect(SEE) have been analyzed for the KOMPSAT-2 operational orbit. As spacecraft external and internal space environment, trapped proton, SEP(solar energetic particle) and GCR(galactic cosmic ...
Myung-Jin Baek, Day-Young Kim, Hak-Jung Kim   +2 more
doaj  

Changes in tropical forest cover of Southeast Asia from 1990 to 2010 [PDF]

, 2013
The study assesses the extent and trends of forest cover in Southeast Asia for the period 1990-2000-2010 and provides an overview on the main drivers of forest cover change.
ACHARD Frederic, CARBONI Silvia, MIETTINEN JUKKA ILMARI, RASI Rastislav, STIBIG Hans-Jurgen   +4 more
core   +2 more sources

Airborne and Spaceborne Mapping and Analysis of the Subglacial Lake D2 in David Glacier, Terra Nova Bay, Antarctica

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 6, June 2025.
Abstract During the 2018–2019 Antarctic summer, the Korea Polar Research Institute and the University of Texas Institute for Geophysics collaborated on a helicopter‐based ice‐penetrating radar (IPR) survey over the active subglacial lake D2 (SLD2), located in the midstream of the David Glacier, Terra Nova Bay, Antarctica.
Hyeontae Ju, Seung‐Goo Kang, Hyangsun Han, Lucas H. Beem, Gregory Ng, Kristian Chan, Taewook Kim, Joohan Lee, Jongik Lee, Yeadong Kim, Sukjoon Pyun   +10 more
wiley   +1 more source

AI Dataset for Road Detection using KOMPSAT Images

GEO DATA, 2022
Information on shape and type of road present in an optical image of satellite is useful for digital mapping and monitoring of road changes. Processing and structuring optical image data collected from payloads mounted on KOMPSAT 3 and 3A can accelerate the development of road detection algorithms and the extraction of road information using them.
Hoonhee Lee, Han Oh
openaire   +2 more sources

Analysis and Simulations for the Severe Turbulence Event Aloft Myanmar on 21 May 2024

Meteorological Applications, Volume 32, Issue 3, May/June 2025.
This paper performed an analysis of a severe turbulence event encountered by Singapore airlines SQ321 on 21 May 2024 over Myanmar, which led to one fatality and multiple injuries. Model simulation with convective permitting resolution indicated the development of convective cells, but precise Eddy Dissipation Rate (EDR) values are difficult to obtain ...
Christy Yan Yu Leung, Haoming Chen, Xiaoming Shi, Ping Cheung, Pak Wai Chan   +4 more
wiley   +1 more source

Telemetry Timing Analysis for Image Reconstruction of Kompsat Spacecraft [PDF]

Journal of Astronomy and Space Sciences, 2000
The KOMPSAT (KOrea Multi-Purpose SATellite) has two optical imaging instruments called EOC (Electro-Optical Camera) and OSMI (Ocean Scanning Multispectral Imager).
Jin-Ho Lee, Young-Keun Chang
doaj  

Electron Phase Space Densities in Geostationary Orbits as Measured With GK2A, GOES‐16, and GOES‐17 Satellites

Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract This study investigated electron phase space densities (PSDs) in geostationary orbits using data from Korea's geostationary satellite, GK2A, as well as GOES‐16 and GOES‐17 satellites. The PSDs were computed from electron fluxes measured by each satellite during a geomagnetically quiet period as defined by stringent conditions on geomagnetic ...
C. H. Lee, J. Seon, W. H. Seol, K. H. Kim, D. E. Larson, G. K. Parks, H. U. Auster, W. Magnes, S. Kraft, D. Y. Lee, A. Boudouridis, P. T. M. Loto'aniu, J. V. Rodriguez   +12 more
wiley   +1 more source

Feasibility Study of Synthetic Aperture Radar - Adaptability of the Payload to KOMPSAT Platform [PDF]

Journal of Astronomy and Space Sciences, 2002
Synthetic Aperture Radar (SAR) has been used for mapping the surface geomorphology of cloudy planets like Venus as well as the Earth. The cloud-free Mars is also going to be scanned by SAR in order to detect buried water channels and other features under
Young-Soo Kim, Sang-Ryool Lee
doaj   +1 more source

Quantitative Assessment of GOES 8–15 > ${ >} $0.6 and > ${ >} $4 MeV Radiation Belt Electron Fluxes

Space Weather, Volume 23, Issue 3, March 2025.
Abstract On Geostationary Operational Environmental Satellites (GOES) 8–15 (1996–2020), the Energetic Particle Sensor (EPS) included three integral electron channels, with nominal lower energies of 0.6 MeV (E1), 2 MeV (E2) and 4 MeV (E3). The > ${ >} $2 MeV channel has received more attention than the other two channels, because it is used by the NOAA ...
J. V. Rodriguez, M. H. Denton, A. Boudouridis   +2 more
wiley   +1 more source

Applicable Tracking Data Arcs for NORAD TLE Orbit Determination of the KOMPSAT-1 Satellite Using GPS Navigation Solutions [PDF]

Journal of Astronomy and Space Sciences, 2005
NORAD Two Line Element (TLE) is very useful to simplify the ground station antenna pointing and mission operations. When a satellite operations facility has the capability to determine NORAD type TLE which is independent of NORAD, it is important to ...
Byoung-Sun Lee
doaj   +1 more source