Ground-reference calibration results for Landsat-7 ETM+

Thome, Kurtis J.; Cattrall, Christopher; D'Amico, J.; Geis, J.

doi:10.1117/12.618185

Cited by 19 publications

(17 citation statements)

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“…The most current laboratory panel measurement uncertainty estimates have been updated to be ±1.0%-1.4% throughout most of the VNIR and SWIR regions [19]. The reflectance-based uncertainty table in [36] has been updated with the new panel uncertainty values, and the new results are shown in Table 6. Assuming an average panel BRF measurement uncertainty of ±1.3% over the VNIR and SWIR, the current uncertainty in the TOA spectral radiance is ±2.6% in the middle of the visible spectral region.…”

Section: Reflectance-based Approachmentioning

confidence: 99%

“…Early work showed that the reflectance-based approach had an absolute radiometric uncertainty of ±5%, and estimated that improvements should result in an uncertainty of ±3% in the middle of the visible portion of the spectrum [12,22,35]. More recently, the uncertainty was re-evaluated to include updates to the surface reflectance retrieval, which is typically the primary source of uncertainty in the reflectance-based approach [36]. The uncertainty of the reflectance-based approach was determined to be 2.5%.…”

Section: Reflectance-based Approachmentioning

confidence: 99%

“…RSG has since updated the laboratory methodology for characterizing the field reference panels, and this has decreased the uncertainty of the surface BRF retrieval. In this work, the uncertainty analysis in [36] is updated with the current surface BRF uncertainty, and the specified uncertainty of MODTRAN 5, which is ±2% in radiance [26].…”

Section: Reflectance-based Approachmentioning

confidence: 99%

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The Ground-Based Absolute Radiometric Calibration of Landsat 8 OLI

et al. 2015

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This paper presents the vicarious calibration results of Landsat 8 OLI that were obtained using the reflectance-based approach at test sites in Nevada, California, Arizona, and South Dakota, USA. Additional data were obtained using the Radiometric Calibration Test Site, which is a suite of instruments located at Railroad Valley, Nevada, USA. The results for the top-of-atmosphere spectral radiance show an average difference of −2.7, −0.8, 1.5, 2.0, 0.0, 3.6, 5.8, and 0.7% in OLI bands 1-8 as compared to an average of all of the ground-based measurements. The top-of-atmosphere spectral reflectance shows an average difference of 1.6, 1.3, 2.0, 1.9, 0.9, 2.1, 3.1, and 2.1% from the ground-based measurements. Except for OLI band 7, the spectral radiance results are generally within ±5% of the design specifications, and the reflectance results are generally within ±3% of the design specifications. The results from the data collected during the tandem Landsat 7 and 8 flight in March 2013 indicate that ETM+ and OLI agree to each other to within ±2% in similar bands in top-of-atmosphere spectral radiance, and to within ±4% in top-of-atmosphere spectral reflectance. OPEN ACCESSRemote Sens. 2015, 7 601

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Section: Reflectance-based Approachmentioning

confidence: 99%

Section: Reflectance-based Approachmentioning

confidence: 99%

Section: Reflectance-based Approachmentioning

confidence: 99%

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The Ground-Based Absolute Radiometric Calibration of Landsat 8 OLI

et al. 2015

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“…2,4 Ground-based vicarious methods are also being used to validate the radiometric calibration of OLI, 5 and the techniques used to perform this work are based on a long heritage of in situ measurements for the purpose of the radiometric calibration of airborne and spaceborne sensors including Landsat 4 and Landsat 5. [6][7][8] This work expands the time period of earlier work that evaluated the radiometric performance of OLI during the commissioning phase, which was 30-90 days after launch. This work is similar to the early OLI work, in that it uses the reflectance-based technique and it also includes results obtained using RadCaTS, which is an automated facility at Railroad Valley, Nevada, USA.…”

Section: Introductionmentioning

confidence: 98%

The absolute radiometric calibration of the Landsat 8 Operational Land Imager using the reflectance-based approach and the Radiometric Calibration Test Site (RadCaTS)

Czapla-Myers

Anderson

Thome

et al. 2014

Earth Observing Systems XIX

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Landsat 8 was launched on 11 February 2013 as the newest platform in the Landsat program. It contains two Earthobserving instruments, one of which is the Operational Land Imager (OLI). OLI includes an onboard radiometric calibration system that is used to monitor changes in its responsivity throughout the mission lifetime, and it consists of Spectralon solar diffuser panels as well as tungsten lamp assemblies. External techniques are used to monitor both OLI and its calibration system, and they include lunar views, side slither maneuvers of the satellite, and ground-based vicarious calibration. This work presents the absolute radiometric calibration results for Landsat 8 OLI that were obtained using two ground-based measurement techniques. The first is the reflectance-based approach, where measurements of atmospheric and surface properties are made during a Landsat 8 overpass, and it requires personnel to be on site during the time of measurement. The second uses the Radiometric Calibration Test Site (RadCaTS), which was developed by the Remote Sensing Group in the College of Optical Sciences at the University of Arizona so that radiometric calibration data can be collected without the requirement of on-site personnel. It allows more data to be collected annually, which increases the temporal sampling of trending results.

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“…The atmospheric aerosol loading is generally low throughout much of the year, with an average aerosol optical depth of 0.060 at 550 nm. 23 …”

Section: Methodsmentioning

confidence: 99%

Earth-observing satellite intercomparison using the Radiometric Calibration Test Site at Railroad Valley

Czapla-Myers

McCorkel

Anderson

et al. 2017

J. Appl. Remote Sens

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show that all sensors agree with the Radiometric Calibration Test Site (RadCaTS) to within AE5% in the solar-reflective regime, except for one band on VIIRS that is within AE6%. In the case of ETM+ and OLI, the agreement is within AE3%, and, in the case of MODIS, the agreement is within AE3.5%. MSI agrees with RadCaTS to within AE4.5% in all applicable bands. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Ground-reference calibration results for Landsat-7 ETM+

Cited by 19 publications

References 0 publications

The Ground-Based Absolute Radiometric Calibration of Landsat 8 OLI

The Ground-Based Absolute Radiometric Calibration of Landsat 8 OLI

The absolute radiometric calibration of the Landsat 8 Operational Land Imager using the reflectance-based approach and the Radiometric Calibration Test Site (RadCaTS)

Earth-observing satellite intercomparison using the Radiometric Calibration Test Site at Railroad Valley

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