Results 11 to 20 of about 123 (84)

Intercomparison of Landsat OLI and JPSS VIIRS Using a Combination of RadCalNet Sites as a Common Reference

Remote Sensing, 2023
Independent radiometric data collected from multiple ground sites as part of vicarious calibration activities can be combined to harmonize the data products of Earth observation sensors with different temporal, spectral, and spatial resolutions.
Mohammad H Tahersima, Brian N Wenny, Norvik Voskanian   +2 more
exaly   +4 more sources

Radiometric Calibration of Large-View-Angle Satellite Sensor at Railroad Valley Playa Site Despite Incomplete RadCalNet Datasets

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The radiometric calibration network (RadCalNet) datasets have been widely applied to calibrate the satellite sensor with a narrow field of view and monitor the radiometric performance during the on-orbit life cycle since the RadCalNet datasets have very ...
Zui Tao, Yong Xie, Hang Yi
exaly   +4 more sources

THE DESIS L2A PROCESSOR AND VALIDATION OF L2A PRODUCTS USING AERONET AND RADCALNET DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
The hyperspectral instrument ”DLR Earth Sensing Imaging Spectrometer” (DESIS) is a VNIR sensor on-board of the International Space Station (ISS) and operational since October 2019.
R. de los Reyes, K. Alonso, M. Bachmann, E. Carmona, M. Langheinrich, R. Müller, B. Pflug, R. Richter   +7 more
doaj   +5 more sources

An Approach for Evaluating Multisite Radiometry Calibration of Sentinel-2B/MSI Using RadCalNet Sites [PDF]

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The Sentinel-2B offers high spatial resolution optical imagery from 13 bands in the visible, near infrared, and short-wave infrared range of the electromagnetic spectrum, providing enhanced continuity to monitoring global terrestrial surfaces and coastal
Caixia Gao, Yaokai Liu, Zhifeng Wu, Lingling Ma, Shi Qiu, Chuanrong Li, Yongguang Zhao, Qijin Han, Enyu Zhao, Yonggang Qian, Ning Wang   +10 more
doaj   +3 more sources

On-Orbit Radiometric Calibration of Hyperspectral Sensors on Board Micro-Nano Satellite Constellation Based on RadCalNet Data

Remote Sensing, 2022
The stability and accuracy of the on-orbit radiometric calibration of hyperspectral sensors are prerequisites for the quantitative application of satellite hyperspectral data.
Qiang Zhang, Yongguang Zhao, Lei Zhang, Jiaqi Wu, Wan Li, Jun Yan, Xiaohua Jiang, Zhiyu Yan, Jing Zhao   +8 more
doaj   +2 more sources

CALIBRATION OF THE SSOT MISSION USING A VICARIOUS APPROACH BASED ON OBSERVATIONS OVER THE ATACAMA DESERT AND THE GOBABEB RADCALNET STATION [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
This work presents the results of the absolute radiometric calibration of the sensor on-board the “Sistema Satelital de Observación de la Tierra” (SSOT) using the vicarious approach based on in-situ measurements of surface reflectance and atmospheric ...
C. Barrientos, J. Estay, E. Barra, D. Muñoz   +3 more
doaj   +3 more sources

BRDF Estimations and Normalizations of Sentinel 2 Level 2 Data Using a Kalman-Filtering Approach and Comparisons with RadCalNet Measurements [PDF]

Remote Sensing, 2021
BRDF estimation aims to characterize the anisotropic behaviour of the observed surface, which is directly related to the type of surface. BRDF theoretical models are then used in the normalization of the satellite-derived observations to virtually ...
Bertrand Saulquin
doaj   +2 more sources

Identification of Global Extended Pseudo Invariant Calibration Sites (EPICS) and Their Validation Using Radiometric Calibration Network (RadCalNet)

Remote Sensing
This study introduces a global land cover clustering using an unsupervised algorithm, incorporating the novel step of filtering data to retain only temporally stable pixels before applying K-means clustering.
Juliana Fajardo Rueda, Larry Leigh, Cibele Teixeira Pinto   +2 more
doaj   +2 more sources

Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Recommendations for a Multi‐Sensor System for Imaging Spectroscopy and Thermal Imagery

Journal of Geophysical Research: Biogeosciences, Volume 128, Issue 9, September 2023., 2023
Abstract The primary objective of the National Aeronautics and Space Administration (NASA) Surface Biology and Geology (SBG) mission is to measure biological, physical, chemical, and mineralogical features of the Earth's surface, realizing a key conceptual component of the envisioned NASA Earth System Observatory (ESO).
Kevin R. Turpie, Kimberly A. Casey, Christopher J. Crawford, Liane S. Guild, Hugh Kieffer, Guoqing (Gary) Lin, Raymond Kokaly, Alok K. Shrestha, Cody Anderson, Shankar N. Ramaseri Chandra, Robert Green, Simon Hook, Constantine Lukashin, Kurt Thome   +13 more
wiley   +1 more source

LéXPLORE: A floating laboratory on Lake Geneva offering unique lake research opportunities

WIREs Water, Volume 8, Issue 5, September/October 2021., 2021
View of LéXPLORE (10 × 10 m) on Lake Geneva from the north shore (Switzerland) looking towards the French Alps. Protected by the yellow‐buoy perimeter, the platform, and surroundings provide both indoor and outdoor workspaces for scientists and instrumentation. Picture by Natacha Tofield‐Pasche, EPFL.
Alfred Wüest, Damien Bouffard, Jean Guillard, Bastiaan W. Ibelings, Sébastien Lavanchy, Marie‐Elodie Perga, Natacha Pasche   +6 more
wiley   +1 more source