Results 11 to 20 of about 226 (99)
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 +2 more
exaly +5 more sources
A Validation Experiment of the Reflectance Products of KOMPSAT-3A Based on RadCalNet Data and Its Applicability to Vegetation Indexing [PDF]
Surface reflectance products obtained through the absolute atmospheric correction of multispectral satellite images are useful for precise scientific applications.
Kiwon Lee, Kwangseob Kim
exaly +6 more sources
BRDF Estimations and Normalizations of Sentinel 2 Level 2 Data Using a Kalman-Filtering Approach and Comparisons with RadCalNet Measurements [PDF]
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 +3 more sources
Accurate radiometric calibration is essential for high-resolution optical satellite sensors with limited onboard calibration capability, such as the FORMOSAT-5 (FS-5) Remote Sensing Instrument (RSI).
Yi-Ling Chang +5 more
doaj +3 more sources
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 ...
Jie Han, Zui Tao, Yong Xie
exaly +5 more sources
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 +2 more
doaj +3 more sources
THE DESIS L2A PROCESSOR AND VALIDATION OF L2A PRODUCTS USING AERONET AND RADCALNET DATA [PDF]
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 +7 more
doaj +5 more sources
First year EnMAP radiometric performance based on scenes over RadCalNet and PICS sites [PDF]
The radiometric performance of EnMAP is presented based on scenes over RadCalNet and PICS sites acquired during the first year since launch. The results show the typical accuracy and stability attainable by EnMAP radiometric products.
Pato, Miguel +14 more
openaire +4 more sources
An Approach for Evaluating Multisite Radiometry Calibration of Sentinel-2B/MSI Using RadCalNet Sites [PDF]
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 +10 more
doaj +3 more sources
The radiometric calibration network (RadCalNet) comprises four pseudo-invariant calibration sites (PICS): Gobabeb, Baotou, Railroad Valley Playa, and La Crau.
Enchuan Qiao +4 more
doaj +2 more sources

