Evaluation of air-LUSI Measurements to Advance Lunar Modeling and the ROLO Lunar Calibration Reference

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dc.contributor.authorStone, Thomas C.
dc.contributor.authorTurpie, Kevin
dc.contributor.authorBrown, Steven
dc.contributor.authorMaxwell, Stephen
dc.contributor.authorWoodward, John
dc.date.accessioned2021-11-18T17:32:18Z
dc.date.available2021-11-18T17:32:18Z
dc.date.issued2021-10-20
dc.descriptionConference on Characterization and Radiometric Calibration for Remote Sensing (CALCON)en_US
dc.description.abstractThe airborne Lunar Spectral Irradiance (air-LUSI) project is dedicated to acquiring high-accuracy, spectrally resolved measurements of the Moon from the NASA ER-2 high-altitude aircraft, flying above more than 90% of Earth's atmosphere. The air-LUSI instrument is a non-imaging system designed specifically for measuring spectral irradiance of the Moon at wavelengths from ~350 nm to 1100 nm. The project aims to achieve absolute measurement uncertainty approaching 0.5% (k=1) with traceability to NIST radiometric standards and SI. These measurements can advance lunar calibration by constraining absolute scale of models that constitute the lunar radiometric reference, such as the USGS ROLO model. A 5-night flight campaign in November 2019 collected lunar measurements at phase angles ranging from 9.4 to 58.5 degrees after Full Moon. ROLO model outputs have been generated for the times and aircraft locations of each night's observations. Inter-night comparisons after normalizing by ROLO show inter-consistency of the measurements within 1.5%, despite a factor of 3.34 difference in lunar irradiance at 500 nm over the 5-night span. These results give no indication of an appreciable phase angle dependence in the ROLO model within the observed range. This talk will highlight implications of the high-accuracy air-LUSI measurements with regard to lunar calibration using irradiance measurements derived from lunar images acquired by space-based sensors.en_US
dc.description.urihttps://digitalcommons.usu.edu/calcon/CALCON2021/all2021content/22/en_US
dc.format.extent15 pagesen_US
dc.genrepresentations (communicative events)en_US
dc.identifierdoi:10.13016/m2jona-xlqp
dc.identifier.urihttp://hdl.handle.net/11603/23379
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleEvaluation of air-LUSI Measurements to Advance Lunar Modeling and the ROLO Lunar Calibration Referenceen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-1637-6008en_US

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