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ARCSTONE: calibration of lunar spectral reflectance from space. Prototype instrument concept, analysis, and results Open
The ARCSTONE project objective is to acquire accurate measurements of the spectral lunar reflectance from space, allowing the Moon to be used as a high-accuracy SI-traceable calibration reference by spaceborne sensors in low-Earth and geos…
View article: Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Recommendations for a Multi‐Sensor System for Imaging Spectroscopy and Thermal Imagery
Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Recommendations for a Multi‐Sensor System for Imaging Spectroscopy and Thermal Imagery Open
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 co…
View article: Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Challenges of a Multi-Sensor System for Imaging Spectroscopy and Thermal Imagery
Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Challenges of a Multi-Sensor System for Imaging Spectroscopy and Thermal Imagery Open
Key Points: • Provides an overview of calibration ideas developed for the SBG mission concept. • Looks at approaches to inter-calibration of multiple Earth orbiting sensors. • Surveys what calibration and validation resources are currently…
An Entropy Framework for Evaluating Reflectance Observations for Climate Studies Open
This study evaluated the comparative entropy represented in shortwave (300–1,750 nm) passive remote sensing measurements from conceptual instruments with varying systematic measurement uncertainties and spectral resolutions. The focus was …
Toward a Climate and Calibration Observatory in space: NASA CLARREO Pathfinder and ESA TRUTHS Open
The number, range and criticality of applications of Earth viewing optical sensors is increasing rapidly. Not only from national/international space agencies but also through the launch of commercial constellations such as those of planet …
Trutinor: A Conceptual Study for a Next-Generation Earth Radiant Energy Instrument Open
Uninterrupted and overlapping satellite instrument measurements of Earth’s radiation budget from space are required to sufficiently monitor the planet’s changing climate, detect trends in key climate variables, constrain climate models, an…
ARCSTONE: Calibration of Lunar Spectral Reflectance from Space Open
Detecting and improving the scientific understanding of global trends in complex Earth systems, such as climate, increasingly depend on assimilating datasets from multiple instruments and platforms over decadal timescales. Calibration accu…
ARCSTONE: Calibration of Lunar Spectral Reflectance from Space Open
Detecting and improving the scientific understanding of global trends in complex Earth systems, such as climate, increasingly depends on assimilating datasets from multiple instruments and platforms over decadal timescales. Calibration acc…
The Moon as a Climate-Quality Radiometric Calibration Reference Open
On-orbit calibration requirements for a space-based climate observing system include long-term sensor response stability and reliable inter-calibration of multiple sensors, both contemporaneous and in succession. The difficulties with achi…
Extending the Global Space-Based Inter-Calibration System (GSICS) to Tie Satellite Radiances to an Absolute Scale Open
The Global Space-based Inter-Calibration System (GSICS) routinely monitors the calibration of various channels of Earth-observing satellite instruments and generates GSICS Corrections, which are functions that can be applied to tie them to…
Ground-to-Space Transmitter System for Extended Instrument Diagnostics of On-Orbit Operational Radiometric Sensors Open
Satellite instrument change in orbit during a mission lifetime can result in significant error for absolute radiance sensor calibrations. Polarization (POL) response, out-of-band signal rejection (OOB), and relative spectral response (RSR)…
CLARREO Pathfinder/VIIRS Intercalibration: Quantifying the Polarization Effects on Reflectance and the Intercalibration Uncertainty Open
Atmospheric scattering and surface polarization affect radiance measurements of polarization-sensitive instruments on orbit. Neglecting the polarization effects may lead to an inaccurate radiance/reflectance determination and underestimate…
CLARREO Pathfinder Inter-calibration: Requirements and Objecti Open
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a Tier 1 mission recommended by the NRC Decadal Survey 2007. In 2016, NASA allocated funding for a CLARREO Pathfinder mission to demonstrate essential measurement tech…
ARCSTONE: Calibration of Lunar Spectral Reflectance Open
Calibration accuracy, long-term precision, and inter-consistency are key on-orbit performance metrics for Earth observing sensors. The accuracy and consistency of environmental measurements across multiple instruments in low Earth and geos…
Calibration Acquisitions of the Moon by CLARREO Pathfinder Open
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a Tier 1 mission recommended by the 2007 NRC Earth Science Decadal Survey. The mission's technical objectives are to acquire high-accuracy SI-traceable decadal length …
Multi-Instrument Inter-Calibration (MIIC) System Open
In order to have confidence in the long-term records of atmospheric and surface properties derived from satellite measurements it is important to know the stability and accuracy of the actual radiance or reflectance measurements. Climate q…
View article: Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder Mission: Status Overview
Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder Mission: Status Overview Open
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a Tier 1 mission recommended by the NRC Decadal Survey 2007. The foundation of CLARREO is the ability to produce highly accurate climate records to test climate projec…