Browsing by Author "Gadsden, Andrew"
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Item Air-LUSI: Supporting Advancement [STC1] of the Moon as a Reference for Earth Observations from Space Air-LUSI: Supporting Advancement of the Moon as a Reference for Earth Observations from Space(EGU Publications) Turpie, Kevin; Brown, Steven; Woodward, John; Stone, Thomas; Gadsden, Andrew; Grantham, Steven; Larason, Thomas; Maxwell, Stephen; Cataford, Andrew; Newton, AndrewTo monitor global environments from space, satellites must be calibrated accurately and consistently across time, missions and instruments. This requires the use of a stable, common reference that is continuously accessible to Earth observing satellites, whether they make up series of missions spanning long periods of time or comprise constellations acquiring many simultaneous observations across the planetItem Airborne Lunar Spectral Irradiance (air-LUSI) Missioni Capability Demonstration(Calcon, 2020-09-21) Turpie, Kevin; Brown, Steve; Woodward, John; Gadsden, Andrew; Stone, Tom; Grantham, Steve; Maxwell, Stephen; Larason, Tom; Newton, Andrew; Rice, JoeThe Moon is a very useful calibration target for Earth-observing sensors in orbit because its surface is radiometrically stable and it has a radiant flux comparable to Earth scenes. To predict the lunar irradiance given an illumination and viewing geometry, the United States Geological Survey (USGS) has developed the Robotic Lunar Observatory (ROLO) Model of exo-atmospheric lunar spectral irradiance. The USGS ROLO model represents the current most precise knowledge of lunar spectral irradiance and is used frequently as a relative calibration standard by space-borne Earth-observing sensors. However, instrument calibration teams have expressed the need for an absolute lunar reference with higher accuracy.