Results 41 to 50 of about 5,714 (231)

Absolute Radiometric Calibration of CAS500-1/AEISS-C: Reflectance-Based Vicarious Calibration and Cross-Calibration with Sentinel-2/MSI

open access: yesRemote Sensing
The absolute radiometric calibration of a satellite sensor is an essential process that determines the coefficients required to convert the radiometric quantities of satellite images. This procedure is crucial for ensuring the applicability and enhancing
Kyung-Bae Choi   +10 more
doaj   +1 more source

RadCalNet: A Radiometric Calibration Network for Earth Observing Imagers Operating in the Visible to Shortwave Infrared Spectral Range

open access: yesRemote Sensing, 2019
Vicarious calibration approaches using in situ measurements saw first use in the early 1980s and have since improved to keep pace with the evolution of the radiometric requirements of the sensors that are being calibrated.
Marc Bouvet   +12 more
doaj   +1 more source

Vicarious Calibration of EO-1 Hyperion [PDF]

open access: yes, 2012
The Hyperion imaging spectrometer on the Earth Observing-1 satellite is the first high-spatial resolution imaging spectrometer to routinely acquire science-grade data from orbit. Data gathered with this instrument needs to be quantitative and accurate in
Lawrence, Ong   +2 more
core   +1 more source

Developing and Validating an Instrument for Assessing Secondary Students' Self‐Efficacy for Online Reading

open access: yesReading Research Quarterly, Volume 61, Issue 2, April/May/June 2026.
This study introduces and validates the Self‐Efficacy for Online Reading Questionnaire (SEORQ), a process‐grounded instrument designed to measure secondary students' efficacy in executing the core demands of online reading. The model conceptualizes online reading self‐efficacy as a multidimensional construct encompassing five interrelated processes ...
SeongYeup Kim   +2 more
wiley   +1 more source

Supervised Vicarious Calibration (SVC) of Multi-Source Hyperspectral Remote-Sensing Data

open access: yesRemote Sensing, 2015
Introduced in 2011, the supervised vicarious calibration (SVC) approach is a promising approach to radiometric calibration and atmospheric correction of airborne hyperspectral (HRS) data.
Anna Brook, Eyal Ben-Dor
doaj   +1 more source

Effects of integration time on in-water radiometric profiles [PDF]

open access: yes, 2018
This work investigates the effects of integration time on in-water downward irradiance E-d, upward irradiance E-u and upwelling radiance L-u profile data acquired with free-fall hyperspectral systems.
Antoine   +50 more
core   +1 more source

Using Machine Learning to Uncover Ecological Mechanisms Controlling Abundance of Phytoplankton Size Classes From Large‐Scale Observations

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 4, April 2026.
Abstract Phytoplankton size classes (PSCs) and Phytoplankton functional types (PFTs) determine many fundamental biogeochemical processes including nutrient uptake, energy transfer through marine food webs, ocean carbon export, and gas exchange with the atmosphere. Discerning the causes of spatio‐temporal variability of PSCs is a scientific priority for
Sandupal Dutta, Anand Gnanadesikan
wiley   +1 more source

Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System

open access: yesRemote Sensing, 2014
Combinations of unmanned aerial platforms and multispectral sensors are considered low-cost tools for detailed spatial and temporal studies addressing spectral signatures, opening a broad range of applications in remote sensing.
Susana Del Pozo   +3 more
doaj   +1 more source

Assessment of the Radiometric Calibration Consistency of Reflective Solar Bands between Terra and Aqua MODIS in Upcoming Collection-7 L1B

open access: yesRemote Sensing, 2023
Two MODIS sensors onboard the Terra and Aqua spacecraft have been successfully operating for over twenty-three and twenty-one years, respectively, providing the worldwide user community with high-quality imagery and radiometric Earth observations of the ...
Aisheng Wu   +4 more
doaj   +1 more source

How Supply Networks Influence Sustainable Innovation: Evidence From Ghana's Public Works Procurement

open access: yesBusiness Strategy and the Environment, Volume 35, Issue 3, Page 4309-4327, March 2026.
ABSTRACT Recent environmental and sustainability standards in procurement increase short‐term production and operational costs to suppliers, which are often recouped by charging price premiums for innovative solutions. However, public buyers are less likely to pay such price premiums, resulting in a disincentive among suppliers to bid for innovation ...
Peter Adjei‐Bamfo   +5 more
wiley   +1 more source

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