Radiometric calibration of the EO-1 Advanced Land Imager

Mendenhall, Jeffrey A.; Lencioni, Donald E.; Parker, Alexander C.

doi:10.1117/12.363505

Cited by 13 publications

(13 citation statements)

References 1 publication

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“…The moon is an extremely stable reflector of sunlight, and when the angle and extent of solar illumination visible by the satellite instrument is properly accounted for, an effective source for trending radiometric performance [14][15][16][17]. Most satellite sensors that use the moon as a calibration source rely on the lunar irradiance model developed at USGS [18] based on observations by the RObotic Lunar Observatory (ROLO).…”

Section: Lunar Calibrationmentioning

confidence: 99%

Landsat-8 Operational Land Imager Radiometric Calibration and Stability

Markham

Barsi

Kvaran³

et al. 2014

Remote Sensing

203

141

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Abstract:The Landsat-8 Operational Land Imager (OLI) was radiometrically calibrated prior to launch in terms of spectral radiance, using an integrating sphere source traceable to National Institute of Standards and Technology (NIST) standards of spectral irradiance. It was calibrated on-orbit in terms of reflectance using diffusers characterized prior to launch using NIST traceable standards. The radiance calibration was performed with an uncertainty of ~3%; the reflectance calibration to an uncertainty of ~2%. On-orbit, multiple calibration techniques indicate that the sensor has been stable to better than 0.3% to date, with the exception of the shortest wavelength band, which has degraded about 1.0%. A transfer to orbit experiment conducted using the OLI's heliostat-illuminated diffuser suggests that some bands increased in sensitivity on transition to orbit by as much as 5%, with an uncertainty of OPEN ACCESS Remote Sens. 2014, 6 12276 ~2.5%. On-orbit comparisons to other instruments and vicarious calibration techniques show the radiance (without a transfer to orbit adjustment), and reflectance calibrations generally agree with other instruments and ground measurements to within the uncertainties. Calibration coefficients are provided with the data products to convert to either radiance or reflectance units.

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Section: Lunar Calibrationmentioning

confidence: 99%

Landsat-8 Operational Land Imager Radiometric Calibration and Stability

Markham

Barsi

Kvaran³

et al. 2014

Remote Sensing

203

141

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“…It is the principal requirement for measurement of absolute radiometric characteristics. 4. High dynamic range of the output radiance.…”

Section: Introductionmentioning

confidence: 97%

“…In particular, the most complicated procedures are necessary for calibration of visual -infrared imaging radiometers (VIIR), imaging spectrometers, spectroradiometer and etc. [1][2][3][4][5][6][7][8] These procedures require the corresponded high-precision light sources [1][2][3][4][5][6][7][8] . In case of precise calibration the selection of the light source becomes very difficult because these light sources should correspond to the following technical requirements 9 :…”

Section: Introductionmentioning

confidence: 99%

Design of the precise uniform light source based on optically connected integrating spheres for VIIR calibration

Mikheenko

Borovytsky

Mironovich

2014

Earth Observing Systems XIX

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The paper presents the design procedure that makes possible identification of the optimal parameters of the proposed light sources. These precise uniform light sources have a form of several or multiple optically connected integrating spheres. Due to high photometric and metrological characteristics the proposed light sources can be considered as one of the best candidates for VIIR calibration in optical range 0.4 -2.3 µm. The paper discusses the principal engineering aspects connected with the design of these light sources such as optimal selection of integrating sphere geometry, halogen lamps, materials and etc.

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“…In particular, the most complicated and most expensive procedures are necessary for calibration of modern visual and infrared imaging radiometers (VIIR), imaging spectrometers, spectro radiometers and etc. [1][2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Precise prelaunch radiometric calibration of VIIRs

Mikheenko

Borovytsky

Hudz

2015

Earth Observing Systems XX

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The paper presents the new approach that includes technique, scheme and instruments for precise calibration of space-borne and airborne visible infrared imaging radiometers (VIIRs). The key component of this technique is the precise uniform light source based on optically-interconnected integrating spheres. The light source contains several (5…11) primary integrating spheres of small diameters which are installed on a secondary integrating sphere of bigger diameter. The initial light sources -halogen lamps or light emitted diodes are installed inside the primary integrating spheres. These spheres are mounted on the secondary integrating sphere. The radiation comes from the primary integrating spheres to the secondary one through diaphragms which diameters can be varied. The secondary integrating sphere has an output aperture where uniform radiance emits. As a result the output radiance can be varied in extremely wide range -up to 800 W/(st·m 2 ) with dynamic range 1 000 000 -without any change of spectral characteristics. Non-uniformity of the radiance distribution throughout the output aperture can be smaller 0.5 % because the secondary integrating sphere is illuminated uniformly and it does not contain lamps inside. The paper discusses the requirements to calibration system, the application of this light source in calibration procedures, metrological aspects of radiometric calibration.

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Radiometric calibration of the EO-1 Advanced Land Imager

Cited by 13 publications

References 1 publication

Landsat-8 Operational Land Imager Radiometric Calibration and Stability

Landsat-8 Operational Land Imager Radiometric Calibration and Stability

Design of the precise uniform light source based on optically connected integrating spheres for VIIR calibration

Precise prelaunch radiometric calibration of VIIRs

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