Results 71 to 80 of about 483 (190)

Detection of the Unified Control Points for RPC Adjustment of KOMPSAT-3 Satellite Image

Korean Journal of Remote Sensing, 2014
The KOMPSAT-3 can acquire panchromatic stereo image with 0.7 m spatial resolution, and provides Rational Polynomial Coefficient (RPC). In order to determine ground coordinate using the provides RPC, which include interior-exterior orientation errors, its adjustment is needed by using the Ground Control Point (GCP). Several thousands of national Unified
Hyoseong Lee, Dongyeob Han, Doochun Seo, Byungwook Park, Kiweon Ahn   +4 more
openaire   +2 more sources

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

Geophysical 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, Dan‐Bi Lee, Jung‐Hoon Kim   +2 more
wiley   +1 more source

Sub‐Seasonal Impact of GNSS Radio Occultation Data

Geophysical 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, F. Vitart, S. B. Healy, Qiang Fu   +3 more
wiley   +1 more source

Comprehensive Analysis of Bias in TEMPO NO2 Column Densities Through Pandora Observations

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 15, 16 August 2025.
Abstract Tropospheric Emissions: Monitoring of Pollution (TEMPO) is the first geostationary satellite instrument to monitor air pollutants across North America. This study uses Pandora observations to analyze the bias in TEMPO Level‐3 total column density of NO2 (TOTNO2) from August 2023 to December 2024.
Masoud Ghahremanloo, Caroline Nowlan, Gonzalo González Abad, Cecilia Garraffo, Xiong Liu, Huiqun Wang, Barron Henderson, Eric Baumann, Lukas Valin, Jeffrey A. Geddes, Xiaoyi Zhao   +10 more
wiley   +1 more source

The Use of the Unified Control Points for RPC Adjustment of KOMPSAT-3 Satellite Image

Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 2014
High resolution satellite images have to be oriented and geometrically processed from GCPs(Ground Control Points) to generate precise DEMs(Digital Elevation Models) and topographic maps. In Korea, thousands of national UCPS(Unified Control Points) are established and distributed all over the country by the Korean NGII(National Geographic Information ...
Kiweon Ahn, Hyoseong Lee, Doochun Seo, Byung-Wook Park, Dongjang Jeong   +4 more
openaire   +2 more sources

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

Journal 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, Neil C. Mitchell, Rui Quartau, Ricardo S. Ramalho   +3 more
wiley   +1 more source

Using of Orthophotoplans in the Land Cadastre [PDF]

, 2022
В последние годы в республике принят ряд мер по укреплению государственного контроля за рациональным и эффективным использованием земельных ресурсов, регулированию земельных отношений, землепользования. В то же время, недостаточно эффективно организованы
Abdullaev, I., Hukina, O., Pirimov, J., Safarov, E., Абдуллаев, И. У., Пиримов, Ж. Ж., Сафаров, Э. Ю., Щукина, О. Г.   +7 more
core  

Towards a satellite system for archaeology? Simulation of an optical satellite mission with ideal spatial and temporal resolution, illustrated by a case study in Scotland [PDF]

, 2020
Applications of remote sensing data for archaeology rely heavily on repurposed data, which carry inherent limitations in their suitability to help address archaeological questions.
Cowley, Dave, Macdonald, Malcolm, McGrath, Ciara N., Scott, Charlie   +3 more
core   +1 more source

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

Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter [PDF]

Journal of Astronomy and Space Sciences, 2011
The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the ...
Jong-Yeoun Choi, Sang-Jeong Lee
doaj   +1 more source