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SST related activities at ESA
2019
Zenodo
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Why a Tandem Mission for Sentinel-3A and 3B? ...
Duration 1.5 months (Handover to EUM FOS 28/11/18, Operations start: Alt: 12/18, Opt: 01/19)
• S-3B is at the baseline position at ±140°to S-3A;
• Validation and of the Sentinel-3B SRAL OLTC for the ...
to X-band) measurements will be available from space in the 2020+ time frame
MetOp-SG(B) has no channels <18.7GHz and spatial resolution does not satisfy Copernicus needs (50 km) 4. ...
doi:10.5281/zenodo.5042195
fatcat:hgg73b4pujgxbl3at4jofl6yle
SENTINEL-2 SURFACE REFLECTANCE PRODUCTS GENERATED BY CNES AND DLR: METHODS, VALIDATION AND APPLICATIONS
2021
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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The article also provides validation results for Level-2A and Level-3A products, resulting from comparison with in-situ data and with other methods. ...
Theia's and EOC products include an instantaneous surface reflectance product (Level-2A), and a monthly cloud free synthesis of surface reflectance (Level-3A). ...
These two sites have been set-up to validate the absolute calibration of optical sensors, and they were chosen to minimize all error sources. ...
doi:10.5194/isprs-annals-v-1-2021-9-2021
fatcat:ol7s6vwdtbew3bepma7xvqykam
Managing Flood Hazard in a Complex Cross-Border Region Using Sentinel-1 SAR and Sentinel-2 Optical Data: A Case Study from Prut River Basin (NE Romania)
2021
Remote Sensing
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Using open-source SAR Sentinel-1 and Sentinel-2 data characterized by an improved temporal resolution, we managed to capture the maximum spatial extent of a flood event that took place in the aforementioned ...
river sector (middle Prut River course) during the 24th and 27th of June 2020. ...
Acknowledgments: The authors would like to express their gratitude to the employees of the Prut- ...
doi:10.3390/rs13234934
fatcat:zqmgkm2denhvrfaqwcl4g654n4
Rapid flood and damage mapping using synthetic aperture radar in response to Typhoon Hagibis, Japan
2020
Scientific Data
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The maps are also largely in agreement with various validation sources including aerial imagery, optical imagery and news sources. ...
The maps have large spatial coverage over the Tokyo, Fukushima, Ibaraki, Iwate, and Nagano prefectures of Japan. ...
We acknowledge the European Union Copernicus and European Space Agency for timely tasking and processing Sentinel-1 data, and Amazon Web Services for their provision of the Public Dataset Program to enable ...
doi:10.1038/s41597-020-0443-5
pmid:32214103
pmcid:PMC7096419
fatcat:i5me3bc3mfcujnpyq54mhndjti
An era of Sentinels in flood management: Potential of Sentinel-1, -2, and -3 satellites for effective flood management
2021
Open Geosciences
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In this article, the technical specifications and operations of the microwave synthetic aperture radar (SAR) onboard Sentinel-1, optical sensors onboard Sentinel-2 (Multispectral Instrument) and Sentinel ...
The earth observatory satellites of the European Space Agency's Sentinel series, Sentinel-1, Sentinel-2, and Sentinel-3, have a great potential to combat these disastrous floods by their peerless surveillance ...
Acknowledgements: The author highly appreciates the European Commission and European Space Agency (ESA) for initiating the ambitious Earth observation programme "Copernicus". ...
doi:10.1515/geo-2020-0325
fatcat:p5zeslke3fctpavndfx3r2mb7m
Front Matter: Volume 11852
2021
International Conference on Space Optics — ICSO 2020
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11852 2X
Alignment turning and assembly of the Sentinel 4 optical modules [11852-103]
11852 2Y
Full scale active telescope engineering model [11852-104]
11852 2Z
EUCLID's very large telescope ...
A stray light correction analysis framework for the calibration of Sentinel-4/UVN [11852-111]
Coherent detection of the light backscattered by an optical surface [11852-144] 11852 42 LISA optical ...
11852 50 Methodology for the analysis of a thermo-mechanically deformed optical system 11852 51 Demonstrating the sub-nanometer sensitivity of a pyramid WaveFrontSensor for active space telescopes ...
doi:10.1117/12.2601252
fatcat:ji2l2jxlgbgjdducf4syex53je
Use of the Sentinel-2 and Landsat-8 Satellites for Water Quality Monitoring: An Early Warning Tool in the Mar Menor Coastal Lagoon
2022
Remote Sensing
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The validation of satellite biogeochemical variables against on-site measurements indicates precise results of the water quality algorithms with median errors of 0.41 mg/m3 and 2.04 FNU for chlorophyll-a ...
In this study, the Landsat-8 and Sentinel-2 satellites are jointly used to examine the evolution of the main water quality descriptors during the latest ecological crisis in 2021, resulting in an important ...
distributing Sentinel-2 and Landsat-8 imagery. ...
doi:10.3390/rs14122744
fatcat:yd7s2lmu35euzdfsf6cojtbkw4
Predicting Forest Cover in Distinct Ecosystems: The Potential of Multi-Source Sentinel-1 and -2 Data Fusion
2020
Remote Sensing
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Sentinel-2 short-wave infrared (SWIR) channels, biophysical parameters (Leaf Area Index (LAI), and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR)) and the lower spectrum of the Sentinel ...
The fusion of microwave and optical data sets is expected to provide great potential for the derivation of forest cover around the globe. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/rs12020302
fatcat:aafi7oluufbu7l3p4xjdteertm
Current and near-term advances in Earth observation for ecological applications
2021
Ecological Processes
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We also include a few spaceborne active LiDAR and radar imagers designed for quantifying surface topography, changes in surface structure, and 3-dimensional canopy properties such as height, area, vertical ...
estimates of water and carbon budgets. ...
Acknowledgements Thanks to all the space agencies and their governments for making satellite data widely available through their "free and open" data policies. ...
doi:10.1186/s13717-020-00255-4
pmid:33425642
pmcid:PMC7779249
fatcat:tojcb7xw3reajgwgci46zsuqk4
Satellite Ocean Colour: Current Status and Future Perspective
2019
Frontiers in Marine Science
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Current capacity building and training activities pertinent to ocean colour are described and finally a summary of future perspectives is provided. ...
Example applications of the ocean-colour data are presented, focusing on the climate data record and operational applications including water quality and assimilation into numerical models. ...
AUTHOR CONTRIBUTIONS All authors listed have made a substantial, direct and intellectual contribution to the work, and approved it for publication. ...
doi:10.3389/fmars.2019.00485
fatcat:ntlwflpnszaank3vtgasyracje
Evaluation of the First Year of Operational Sentinel-2A Data for Retrieval of Suspended Solids in Medium- to High-Turbidity Waters
2018
Remote Sensing
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An existing semi-analytical algorithm is calibrated by means of a cross-validation procedure based on both red 664 nm (r = 0.8, NRMSE of 25.06%) and near-infrared (NIR) 865 nm (r = 0.98, NRMSE of 10.28% ...
These findings encourage further research of water quality studies relying on both operational Sentinel-2A and Sentinel-2B, with great implications to improve the understanding of turbid coastal and inland ...
Acknowledgments: We would like to thank the ESA and the Copernicus programme for distributing the Sentinel-2 data used in this study. ...
doi:10.3390/rs10070982
fatcat:j3ueaehkt5h6nhmbljnlif7b7e
Automatic Open Water Flood Detection from Sentinel-1 Multi-Temporal Imagery
2021
Water
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A significant challenge in this area was the launch of Sentinel-1 providing free-of-charge data with adequate spatial resolution and relatively high revisit time. ...
It is based on a combination of algorithms for multi-temporal change detection and histogram thresholding open-water detection. ...
in Figure 3a . ...
doi:10.3390/w13233392
fatcat:2jhm75tmfrdxtae4hos22du7kq
Use of Sentinel-2 Derived Vegetation Indices for Estimating fPAR in Olive Groves
2022
Agronomy
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The models, describing the relationship between rescaled VIs and observed fraction of Photosynthetically Active Radiation (fPAR), were fitted and then validated against independent datasets. ...
While in the calibration phase, a greater robustness at predicting fPAR was obtained using NDVI (r = 0.96 and RRMSE = 9.86), the validation results demonstrating that GEMI and MCARI2/OSAVI provided the ...
Sentinel-2 images (2A product-surface reflectance) at a pixel resolution of 10 m were downloaded from the official Copernicus Open Access Hub (https://scihub.copernicus.eu; accessed on 12 January 2022) ...
doi:10.3390/agronomy12071540
fatcat:qraqpeo42fal7hodmzzdbiuxbq
AgroShadow: A New Sentinel-2 Cloud Shadow Detection Tool for Precision Agriculture
2021
Remote Sensing
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AgroShadow was tested and compared against Sen2Cor and MAJA in 33 Sentinel 2A-B scenes, covering the whole of 2020 and in 18 different scenarios of the whole Italian country at farming scale. ...
Remote sensing for precision agriculture has been strongly fostered by the launches of the European Space Agency Sentinel-2 optical imaging constellation, enabling both academic and private services for ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/rs13061219
fatcat:gjnskwfknngb5mlsve4rbrfyyu
Front Matter: Volume 11180
2019
International Conference on Space Optics — ICSO 2018
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instrument onboard EnMAP: overview and current status ACTIVE/DEPLOYABLE OPTICS 08 Active optics for next generation of space observation instruments 11180 09 A novel deployable telescope to facilitate ...
and optical performance of silicon immersed gratings for Sentinel-5 [11180-56] 11180 1M UV Ruled Grating for the Mars atmosphere and Volatile EvolutioN (MAVEN) mission [11180-57] TELESCOPE INTEGRATION ...
and Out-of-field stray light analysis for the COPERNICUS Sentinel 4 instrument [11180-97]
11180 2R
Evaluation of straylight characteristics of the Sentinel-5 NIR spectrometer optics [11180-98]
11180 ...
doi:10.1117/12.2541613
fatcat:gfmzdmofg5hslnzpbrhh425l7q
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