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A Radiometric Uncertainty Tool for the Sentinel 2 Mission

Javier Gorroño, Norman Fomferra, Marco Peters, Ferran Gascon, Craig Underwood, Nigel Fox, Grit Kirches, Carsten Brockmann
2017 Remote Sensing  
As part of this mission, a tool (named S2-RUT, from Sentinel-2 Radiometric Uncertainty Tool) has been developed.  ...  The design and development of the tool has resulted in a first version of the tool implemented and released-S2-RUT (Sentinel-2 Radiometric Uncertainty Tool) [7]-that estimates the TOA radiometric uncertainties  ...  analysis and model validation; Ferran Gascon (ESA) has reviewed and oriented the research with respect to the Sentinel-2 mission performances and data processing.  ... 
doi:10.3390/rs9020178 fatcat:35bvlsijdreedkvws2bdaba2ji

Novel techniques for the analysis of the TOA radiometric uncertainty

Javier Gorroño, Andrew Banks, Ferran Gascon, Nigel P. Fox, Craig I. Underwood, Roland Meynart, Steven P. Neeck, Toshiyoshi Kimura, Haruhisa Shimoda
2016 Sensors, Systems, and Next-Generation Satellites XX  
As part of this mission, a tool (named S2-RUT, from Sentinel-2 Radiometric Uncertainty Tool) estimates the radiometric uncertainties associated to each pixel using as input the top-of-atmosphere (TOA)  ...  The initial version of the tool has been implementedcode and user guide available 1and integrated as part of the Sentinel Toolbox.  ...  As part of this mission, the first version of the S2-RUT (Sentinel-2 Radiometric Uncertainty Tool) has been made available to the community 1 .  ... 
doi:10.1117/12.2240391 fatcat:b5jk7za2drh3npy5lc5oltqh6y

Front Matter: Volume 9639

2015 Sensors, Systems, and Next-Generation Satellites XIX  
Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online and print versions of the publication.  ...  Publication of record for individual papers is online in the SPIE Digital Library. SPIEDigitalLibrary.org Paper Numbering: Proceedings of SPIE follow an e-First publication model.  ...  for Earth science application [9639-53] SESSION 13 MISSIONS AND TECHNOLOGIES II 9639 1G Radiometric uncertainty per pixel for the Sentinel-2 L1C products [9639-54] 9639 1H G-MAP: a novel night  ... 
doi:10.1117/12.2220465 fatcat:nvw5t3kaq5dc7pep5fxjlypxmi

The DLR SAR calibration center

Jens Reimann, Marco Schwerdt, Kersten Schmidt, Nuria Tous Ramon, Gabriel Alfonzo Castellanos, Bjorn Doring, Daniel Rudolf, Sebastian Raab, John Mohan Walter Antony, Manfred Zink
2015 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)  
Some of these techniques which are also applied to current spaceborne 19 SAR missions like Sentinel-1, TerraSAR-X and TanDEM-X will be presented along with the 20 achievable performance. 21 22  ...  The Germany Aerospace Center (DLR) has been a key player in 14 this field for more than 25 years and has concentrated its expertise and technology in 15 performing the calibration of spaceborne SAR sensors  ...  Due to the measured quantities, this technique allows an easy trace back of the RCS 4 measurement to the International System of Units with known uncertainty. 5 For calibration of ESA's Sentinel-1 mission  ... 
doi:10.1109/apsar.2015.7306181 fatcat:5oc6muxzgbacjeb3ky7yj4ytee

Observations and Recommendations for the Calibration of Landsat 8 OLI and Sentinel 2 MSI for Improved Data Interoperability

Dennis Helder, Brian Markham, Ron Morfitt, Jim Storey, Julia Barsi, Ferran Gascon, Sebastien Clerc, Bruno LaFrance, Jeff Masek, David Roy, Adam Lewis, Nima Pahlevan
2018 Remote Sensing  
To address this issue, a workshop with a panel of experts was convened in conjunction with the Pecora 20 conference to focus on data interoperability between Landsat and the Sentinel 2 sensors.  ...  Lastly, and the most ambitious of the four, was to develop a comprehensive process for validating surface reflectance products produced from the data sets.  ...  Authors 5, 6 and 7 thank Bahjat Alhammoud (ARGANS) and Marion Neveu Van Malle (Thales Alenia Space) for providing the results for Sentinel-2 radiometric and geometric validation respectively.  ... 
doi:10.3390/rs10091340 fatcat:xudyr6znp5hypgznqw22rltu5a

Sentinel-2A MSI and Landsat-8 OLI radiometric cross comparison over desert sites

Julia A. Barsi, Bahjat Alhammoud, Jeffrey Czapla-Myers, Ferran Gascon, Md. Obaidul Haque, Morakot Kaewmanee, Larry Leigh, Brian L. Markham
2018 European Journal of Remote Sensing  
This paper shows that the work done to date by the Landsat and Sentinel-2 calibration teams has resulted in stable radiometric calibration for each instrument and consistency to~2.5% between the instruments  ...  A team from the University of Arizona is acquiring field data under both instruments for vicarious calibration of the sensors.  ...  The Sentinel-2A orbit has a mean local solar time (10:30 am) close to the local overpass time of and that of , permitting the integration of Sentinel-2 data with existing and historical missions, and  ... 
doi:10.1080/22797254.2018.1507613 fatcat:xjibavq6rvebjkq3mlc3ntrvse

European Space Agency (ESA) Calibration/Validation Strategy for Optical Land-Imaging Satellites and Pathway towards Interoperability

Fabrizio Niro, Philippe Goryl, Steffen Dransfeld, Valentina Boccia, Ferran Gascon, Jennifer Adams, Britta Themann, Silvia Scifoni, Georgia Doxani
2021 Remote Sensing  
This includes the need for traceability, a fully characterised uncertainty budget and adherence to community-agreed measurement protocols.  ...  and common protocols for the calibration and validation (Cal/Val) of optical land imaging sensors.  ...  of satellite data products derived from the Sentinel-2 mission.  ... 
doi:10.3390/rs13153003 fatcat:ibglfqy3sbbr5dwxpsmbowrpl4

Radiometric inter-sensor cross-calibration uncertainty using a traceable high accuracy reference hyperspectral imager

Javier Gorroño, Andrew C. Banks, Nigel P. Fox, Craig Underwood
2017 ISPRS journal of photogrammetry and remote sensing (Print)  
This paper describes a set of tools, algorithms and methodologies that have been developed and used in order to estimate the radiometric uncertainty achievable for an indicative target sensor through in-flight  ...  In this study, Multi-Spectral Imager (MSI) of Sentinel-2 and Landsat-8 Operational Land Imager (OLI) is evaluated as an example, however the analysis is readily translatable to larger-footprint sensors  ...  spectrometer, Paul Kessler (AMA, Inc.) for his support in using the COVE tool, Dr.  ... 
doi:10.1016/j.isprsjprs.2017.07.002 fatcat:fdmcxxrxhjbfnlvskzj6b6lsam

A Sentinel-2 Dataset for Uganda

Jonas Ardö
2021 Data  
The Framework for Operational Radiometric Correction for Environmental monitoring (FORCE) was used to download, process and composite Sentinel-2 data from 2018–2020 for Uganda.  ...  Over 16,500 Sentinel-2 data granules were downloaded and processed from top of the atmosphere reflectance to bottom of the atmosphere reflectance and higher-level products, totalling > 9 TB of input data  ...  Each satellite has a return time of about 10 days at the equator and 5 days for the combination of both missions.  ... 
doi:10.3390/data6040035 fatcat:o32nmic76faufogh3n22l5cb3y

Traceable Radiometry Underpinning Terrestrial- and Helio-Studies (TRUTHS): An Element of a Space-Based Climate and Calibration Observatory

Nigel Fox, Paul Green
2020 Remote Sensing  
This paper describes a new satellite mission, called Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS), which enables, for the first time, high-accuracy SI traceability to be established  ...  The Earth's climate is undoubtedly changing; however, the time scale, consequences, and causal attribution remain the subject of significant debate and uncertainty.  ...  Uncertainty budget (k = 1) achievable for the upgrade of the radiometric performance of Sentinel 2 using TRUTHS as a reference sensor and the Libya-4 PICS.  ... 
doi:10.3390/rs12152400 fatcat:batc43tlanh2rdtatqzcth3jbq

An Operational Analysis Ready Radar Backscatter Dataset for the African Continent

Fang Yuan, Marko Repse, Alex Leith, Ake Rosenqvist, Grega Milcinski, Negin F. Moghaddam, Tishampati Dhar, Chad Burton, Lisa Hall, Cedric Jorand, Adam Lewis
2022 Remote Sensing  
The method is used to generate data for a range of sites around the world and has been validated as producing good results.  ...  The workflow applies radiometric terrain correction (RTC) to the Sentinel-1 ground range detected (GRD) product, using the Copernicus 30 m digital elevation model (DEM).  ...  We would like to thank the two anonymous reviewers for providing constructive feedback on the paper. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs14020351 fatcat:7nsoir24djfndmaif45bo2it3u

Copernicus Sentinel-2A Calibration and Products Validation Status

Ferran Gascon, Catherine Bouzinac, Olivier Thépaut, Mathieu Jung, Benjamin Francesconi, Jérôme Louis, Vincent Lonjou, Bruno Lafrance, Stéphane Massera, Angélique Gaudel-Vacaresse, Florie Languille, Bahjat Alhammoud (+11 others)
2017 Remote Sensing  
As part of the Copernicus programme of the European Union (EU), the European Space Agency (ESA) has developed and is currently operating the Sentinel-2 mission that is acquiring high spatial resolution  ...  This paper provides a description of the calibration activities and the current status, one year after Sentinel-2A launch, of the mission products validation activities.  ...  These aspects are particularly challenging for the Sentinel-2 mission given the amount of data produced by the Figure 2 . 2 MSI spectral bands vs. spatial resolution with corresponding Full Width at Half  ... 
doi:10.3390/rs9060584 fatcat:fglsduu6g5bjpd6nmxpspa2hfy

Independent System Calibration of Sentinel-1B

Marco Schwerdt, Kersten Schmidt, Núria Tous Ramon, Patrick Klenk, Nestor Yague-Martinez, Pau Prats-Iraola, Manfred Zink, Dirk Geudtner
2017 Remote Sensing  
Sentinel-1B is the second of two C-Band Synthetic Aperture Radar (SAR) satellites of the Sentinel-1 mission, launched in April 2016-two years after the launch of the first satellite, Sentinel-1A.  ...  Finally, a first radiometric cross-check between Sentinel-1B and Sentinel-1A is presented in Section 10.  ...  Acknowledgments: The authors would like to thank the ESA colleagues for Sentinel-1B and Sentinel-1A acquisitions over the DLR calibration field, for providing the corresponding data and for the constructive  ... 
doi:10.3390/rs9060511 fatcat:yb7jttqeyfbs7fr2yu5execic4

Hierarchical Bayesian Data Analysis in Radiometric SAR System Calibration: A Case Study on Transponder Calibration with RADARSAT-2 Data

Björn Döring, Kersten Schmidt, Matthias Jirousek, Daniel Rudolf, Jens Reimann, Sebastian Raab, John Antony, Marco Schwerdt
2013 Remote Sensing  
The applicability of the method is demonstrated through a case study: The radar reflectivity of DLR's new C-band Kalibri transponder is derived through a series of RADARSAT-2 acquisitions and a comparison  ...  The systematic derivation of calibration uncertainties is seen as an important step toward traceable radiometric calibration of synthetic aperture radars.  ...  Ron Caves from MDA Systems Ltd. rendered the campaign possible by organizing the acquisitions and by providing the processed RADARSAT-2 datatakes.  ... 
doi:10.3390/rs5126667 fatcat:mj5lq2xedjeorgtigql6hq25c4

RELATIVE RADIOMETRIC NORMALIZATION USING SEVERAL AUTOMATICALLY CHOSEN REFERENCE IMAGES FOR MULTI-SENSOR, MULTI-TEMPORAL SERIES

C. Hessel, R. Grompone von Gioi, J. M. Morel, G. Facciolo, P. Arias, C. de Franchis
2020 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
A final tone-mapping step outputs the images in the standard 8-bits range. This method is illustrated by the fusion of time series of Sentinel-2 at correction levels 1C, 2A, and Landsat-8 images.  ...  We propose a method for the relative radiometric normalization of long, multi-sensor image time series. This allows to increase the revisit time under comparable conditions.  ...  A(un) = 1 if Sentinel-2, Level-2A 0.1 if Sentinel-2, These metrics are then multiplied to obtain a score Q for each image: Q(un) = S(un) · C(un) · A(un).  ... 
doi:10.5194/isprs-annals-v-2-2020-845-2020 fatcat:tfy55cqq6faclatu2h4aux6xci
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