Results 81 to 90 of about 2,001 (206)

Influence of Atmospheric Slant Path on Geostationary Hyperspectral Infrared Sounder Radiance Simulations

open access: yesGeophysical Research Letters, Volume 51, Issue 23, 16 December 2024.
Abstract Accurately simulating a geostationary hyperspectral infrared sounder is critical for quantitative applications. Traditional radiation simulations of such instruments often overlook the influence of slant observation geometry by using vertical profile assumption, leading to inadequate simulation accuracy.
Pengyu Huang   +6 more
wiley   +1 more source

Accuracy Assessment of a Digital Elevation Model Constructed Using the KOMPSAT-5 Dataset

open access: yesRemote Sensing
The Interferometric Synthetic Aperture Radar (InSAR) has significantly advanced in its usage for analyzing surface information such as displacement or elevation. In this study, we evaluated a digital elevation model (DEM) constructed using X-band KOMPSAT-
Je-Yun Lee   +3 more
doaj   +1 more source

Sun Interference Predictions for the Kompsat TT&C Station [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1997
The Sun interference event predictions for the KOMPSAT TT&C station were performed to analyze the frequency of the event and the impact on the TT&C link.
Byoung-Sun Lee
doaj  

Development of a Web-Based Analytical Framework for Soil Moisture Estimation Using Multipolarized SAR Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study developed a novel framework to estimate and visualize soil moisture using KOMPSAT-5 synthetic aperture radar (SAR) data in a real-time web-based environment.
D. H. Lee, D. W. Chung, S. G. Lee
doaj   +1 more source

Modeling of Reaction Wheel Using KOMPSAT-1 Telemetry [PDF]

open access: yesJournal of the Korean Society for Aeronautical & Space Sciences, 2004
The design of reaction wheel control logic is critical to achieve the spacecraft attitude stabilization and performance requirements for the successful mission. Due to various uncertainties on orbit there exist limitation to obtain the model parameters through the ground tests and to design the associated control logic.
openaire   +1 more source

A survey of remote-sensing big data [PDF]

open access: yes, 2015
We have entered an era of big data. It is popular to refer to the three Vs when characterizing big data: remarkable growths in the volume, velocity and variety of data. However, this statement is too general.
Peng Liu
core   +2 more sources

The Potential of Hydrogeodesy to Address Water‐Related and Sustainability Challenges

open access: yesWater Resources Research, Volume 60, Issue 11, November 2024.
Abstract Increasing climatic and human pressures are changing the world's water resources and hydrological processes at unprecedented rates. Understanding these changes requires comprehensive monitoring of water resources. Hydrogeodesy, the science that measures the Earth's solid and aquatic surfaces, gravity field, and their changes over time ...
Fernando Jaramillo   +56 more
wiley   +1 more source

Sun Incidence Angle Analysis of KOMPSAT-2 Payload during Normal Mission Operations [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
KOMPSAT-2 will carry MSC (Multi-Spectral Camera) which provides 1m resolution panchromatic and 4m resolution multi-spectral images at the altitude of 685km sun-synchronous mission orbit.
Eunghyun Kim   +2 more
doaj  

Multi-layer Land Cover Data for Remote-Sensing based Vegetation Modelling for South Korea [PDF]

open access: yes, 2018
Land cover data is essential input for vegetation productivity models that are often driven by coarse resolution data. In this study, we analyze how well 1 km land cover data represent land cover at 30 m for South Korea. We derive multi-layer 1 km land
Eisfelder, Christina   +2 more
core  

Upscaling Land Surface Fluxes Through Hyper Resolution Remote Sensing in Space, Time, and the Spectrum

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 129, Issue 10, October 2024.
Abstract Numerous efforts to measure land surface fluxes, from leaf to canopy scales, have significantly advanced the field of biogeoscience. However, upscaling these estimates to larger spatial and temporal scales remains a challenge. Recent advancements in remote sensing provide new opportunities to bridge these gaps in upscaling efforts.
Youngryel Ryu
wiley   +1 more source

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