Results 71 to 80 of about 54,052,566 (187)

On-Orbit Performance of KOMPSAT-2 Attitude & Orbit Control System [PDF]

open access: yes, 2007
KOMPSAT-2 is the second Korean earth observation satellite after KOMPSAT-1: the 1 meter GSD cartographic capability and it launched in the end of July of 2006 by ROKOT launch vehicle.
Rhee, Seung-Wu, Lee, Joo-Jin
core  

Trees Outside Forests (TOFs): A Global Review of Methodological Advances, Limitations, and Framework Innovations

open access: yesInternational Journal of Forestry Research, Volume 2026, Issue 1, 2026.
Trees outside forests (TOFs) represent an important natural and anthropogenic resource that contributes significantly to biodiversity conservation, climate resilience, and the protection of forest genetic resources (FGRs). Despite their ecological and socioeconomic importance, TOFs are increasingly declining due to land‐use changes, urbanization ...
Aman Dabral   +9 more
wiley   +1 more source

Machine Learning‐Based Turbulence Intensity Estimation Near Convective Clouds in East Asia Using GK‐2A Satellite Observations

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The detection of atmospheric turbulence, particularly near deep convection, are essential for flight safety and efficiency. Geostationary satellites provide continuous coverage where radar is unavailable, but their lack of vertical information limits detection to upper levels.
Yoonjin Lee   +2 more
wiley   +1 more source

Sub‐Seasonal Impact of GNSS Radio Occultation Data

open access: yesGeophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract This study investigates for the first time whether the assimilation of the Global Navigation Satellite System Radio occultation (GNSS‐RO) data has a significant impact on the European Centre for Medium‐Range Weather Forecasts sub‐seasonal forecasts.
K. Lonitz   +3 more
wiley   +1 more source

Coastal wetland change detection using high spatial resolution KOMPSAT-2 imagery [PDF]

open access: yes, 2018
Coastal wetlands store terrestrial carbon and conserve biodiversity, thus playing an essential ecological role. Reliable regional-scale assessments of wetland dynamics, such as analysis of land use and land cover (LULC), and coastal monitoring, provide ...
Hoang Hai Nguyen   +2 more
core   +1 more source

Systematic Slowing of Initially Rapid Retreat of New Coasts Formed by Historical Eruptions in Volcanic Islands

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 8, August 2025.
Abstract Due to their exposure to waves, volcanic island coasts typically retreat with cliff collapses and other erosional processes. Understanding how retreat rates vary over time and in response to environmental and other factors could be useful for geohazard assessment, coastal management and landform reconstruction.
Zhongwei Zhao   +3 more
wiley   +1 more source

A No-Reference CNN-Based Super-Resolution Method for KOMPSAT-3 Using Adaptive Image Quality Modification

open access: yes, 2021
In recent years, research on increasing the spatial resolution and enhancing the quality of satellite images using the deep learning-based super-resolution (SR) method has been actively conducted.
Yongwoo Kim, Sanghyuck Han, Yeonju Choi
core   +1 more source

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

open access: yesJournal 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   +10 more
wiley   +1 more source

Acceleration Compensation for Estimation of Along-Track Velocity of Ground Moving Target from Single-Channel SAR SLC Data

open access: yesRemote Sensing, 2020
Across-track acceleration is a major source of estimation error of along-track velocity in synthetic-aperture radar (SAR) ground moving-target indication (GMTI).
Sang-Wan Kim, Joong-Sun Won
doaj   +1 more source

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

open access: yesMeteorological 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   +4 more
wiley   +1 more source

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