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The Normalization of Surface Anisotropy Effects Present in SEVIRI Reflectances by Using the MODIS BRDF Method
2014
IEEE Transactions on Geoscience and Remote Sensing
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A modified version of the MODerate resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF) algorithm is presented for use in the angular normalization of surface ...
It is found that the MSG retrievals are stable and are of high-quality across much of the SEVIRI disk while maintaining a higher temporal resolution than the MODIS BRDF products. ...
By using NDVI, we gain the most accurate in situ data, and because NDVI is simply a combination of two channels of reflectance data, we can still analyze the effectiveness of the BRDF method. ...
doi:10.1109/tgrs.2013.2294602
fatcat:mgwqatwjqrbbhmjwej75rhdk5a
Analysing NDVI for the African continent using the geostationary meteosat second generation SEVIRI sensor
2006
Remote Sensing of Environment
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Differences in MSG SEVIRI and MODIS BRDF on a seasonal scale were found to influence the time series of NDVI for the test site; MSG NDVI being higher than MODIS in July-August and lower in October-November ...
With the availability of diurnal reflectance information the significance of differences between the red and near-infrared wavelengths due to anisotropy become evident, causing diurnal variations in observed ...
Clerici, both EUMETSAT for support in relation to the SEVIRI processing; CESBIO for making the SMAC code available on the Internet and Beatrice Berthelot for the sensor specific coefficients; David Taylor ...
doi:10.1016/j.rse.2005.11.013
fatcat:qxdhcmbwkfgrloqzzaykyeqclm
Daily estimates of aerosol optical thickness over land surface based on a directional and temporal analysis of SEVIRI MSG visible observations
2010
Journal of Geophysical Research
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Daily estimates of aerosol optical thickness over land surface based on a directional and temporal analysis of SEVIRI MSG visible observations. [1] This paper presents an innovative method for obtaining ...
On the basis of numerical experiments using the 6S atmospheric code, the validity of the BRDF model is demonstrated. ...
One of us (O.H.) received financial support from EUMETSAT (European Organization for the Exploitation of Meteorological Satellites) in the framework of the Satellite Application Facilities (SAF) program ...
doi:10.1029/2009jd012272
fatcat:wcxf7lqjnra7loomhorugyowiy
Intercomparison of Two BRDF Models in the Estimation of the Directional Emissivity in MIR Channel From MSG1-SEVIRI Data
2008
Optics Express
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The results show that: (1) Both models can relatively well describe the non-Lambertian reflective behavior of land surfaces in SEVIRI channel 4; (2) The RossThick-LiSparse-R model is better than the modified ...
The use of the RossThick-LiSparse-R model in the estimation of the directional emissivity in MIR channel is recommended. ...
Acknowledgments This research was funded by the project EAGLE (Exploitation of AnGular effects in Land surfacE observations from satellites) through contract No.: SST3 CT2003 502057 in the Sixth Framework ...
doi:10.1364/oe.16.019310
pmid:19582025
fatcat:57smht5xazf6fkuhvosr2ljety
Development of Land Surface Albedo Algorithm for the GK-2A/AMI Instrument
2020
Remote Sensing
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To perform BRDF modeling, the optimization method using normalized reflectance was applied, which improved the quality of BRDF modeling results, particularly when the number of observations was less than ...
close to the accuracy of MODIS broadband LSA. ...
Acknowledgments: This work was supported by "Development of the GK-2A meteorological algorithms" project, funded by ETRI, which is a subproject of "Development of Geostationary Meteorological Satellite ...
doi:10.3390/rs12152500
fatcat:2lmnpeudhfcffhqgchtn6l7asq
An automated field spectrometer system for studying VIS, NIR and SWIR anisotropy for semi-arid savanna
2014
Remote Sensing of Environment
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Anisotropy factors corresponding to MODIS, SPOT and SEVIRI red, near-infrared (NIR) and shortwaveinfrared (SWIR) sensor response functions indicated little influence of the anisotropic behavior for savanna ...
The instrumental setup allows studying surface anisotropy for different phenological phases. ...
We would also like to thank all the individuals involved in the field campaigns in Senegal as well as the maintenance and management of the Dahra field station. ...
doi:10.1016/j.rse.2014.06.007
fatcat:eukk6x6seje4doqqxc3ksjmb7y
Mapping Surface Broadband Albedo from Satellite Observations: A Review of Literatures on Algorithms and Products
2015
Remote Sensing
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As an efficient tool for monitoring the surfaces of the Earth, remote sensing is widely used for deriving long-term surface broadband albedo with various geostationary and polar-orbit satellite platforms ...
Moreover, the algorithms for estimating surface broadband albedo from satellite observations, including narrow-to-broadband conversions, bidirectional reflectance distribution function (BRDF) angular modeling ...
Acknowledgments This study has been financially supported by the China Postdoctoral Science Foundation (2014M550025), the Chinese Natural Science Foundation Project (41371356), the "State Program for High-Tech ...
doi:10.3390/rs70100990
fatcat:getf67mjkjbidj3tiltnd5khlm
Intercomparison of desert dust optical depth from satellite measurements
2012
Atmospheric Measurement Techniques
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The satellite instruments considered are AATSR, AIRS, MERIS, MISR, MODIS, OMI, POLDER, and SEVIRI. ...
These include multi-angle approaches (MISR, AATSR), polarisation measurements (POLDER), single-view approaches using solar wavelengths (OMI, MODIS), and the thermal infrared spectral region (SEVIRI, AIRS ...
University of Oxford authors acknowledge support from the National Centre of Earth Observation. Ben Veihelmann's contribution to this paper was supported by the Netherlands Space Office (NSO). ...
doi:10.5194/amt-5-1973-2012
fatcat:z7gtzoodazbsbezbmcrwis4yli
Impacts of Climate Change and Land Use Changes on Land Surface Radiation and Energy Budgets
2010
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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Impacts of climate change and land use changes on land surface radiation and energy budgets. ...
The normalization of reflectance data is especially important when using multi-seasonal Landsat data. ...
The within-scene anisotropy effects due to sensor view angle variation are small compared to effects introduced by sun angle variation throughout the year. Fensholt et al. ...
doi:10.1109/jstars.2010.2053570
fatcat:fkm535aljngglnwku2y3d35meq
Land Surface Albedo Derived on a Ten Daily Basis from Meteosat Second Generation Observations: The NRT and Climate Data Record Collections from the EUMETSAT LSA SAF
2018
Remote Sensing
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Land surface albedo determines the splitting of downwelling solar radiation into components which are either reflected back to the atmosphere or absorbed by the surface. ...
In this study we present a new collection of albedo satellite products based on the same satellite data. ...
Acknowledgments: The work presented in this article has been carried out as part of the validation activities of the SEVIRI land surface albedo dataset MTAL-R provided by the EUMETSAT Satellite Applications ...
doi:10.3390/rs10081262
fatcat:vhvj2ldetjbqthbskamwlx6qxq
A Simple Algorithm for Deriving an NDVI-Based Index Compatible between GEO and LEO Sensors: Capabilities and Limitations in Japan
2020
Remote Sensing
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from the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) as a reference over land surfaces in Japan at middle latitudes. ...
If one can find a parameter in which the value is less influenced by geometric conditions and SRFs, it would be invaluable for the synergistic use of the multiple sensors. ...
The GOCI NDVI was compared with the MODIS NDVI computed from the nadir BRDF-adjusted reflectances provided by the BRDF model based on the RTLSR kernels that had been calibrated using a surface reflectance ...
doi:10.3390/rs12152417
fatcat:inzzhalobjbv3bhx7ui75ofoam
Evaluation of Three Parametric Models for Estimating Directional Thermal Radiation from Simulation, Airborne, and Satellite Data
2018
Remote Sensing
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Therefore, Lagouarde and Irvine adapted a reflectance hotspot model to describe the thermal infrared directional signature by replacing the reflectance with the surface temperature [8]. ...
The analysis at pixel scale indicated a consistent result that the three models presented a stable effect both on verification and validation, but the Vinnikov model had the best ability in the erectophile ...
This work was supported in part by the National Natural Science Foundation of China under Grant 41571353 and Grant 41231170, and in part by the Innovation Project of LREIS (O88RA801YA). ...
doi:10.3390/rs10030420
fatcat:v7wo37eylza5zcrfuip3qao2ve
Climate Data Records of Vegetation Variables from Geostationary SEVIRI/MSG Data: Products, Algorithms and Applications
2019
Remote Sensing
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This paper presents the methodology currently developed in EUMETSAT within its Satellite Application Facility for Land Surface Analysis (LSA SAF) to generate biophysical variables from the Spinning Enhanced ...
The high frequency and good temporal continuity of SEVIRI products addresses the needs of near-real-time users and are also suitable for long-term monitoring of land surface variables. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/rs11182103
fatcat:tg554piiazbohf6bjvae2n37d4
Surface Albedo Retrieval from 40-Years of Earth Observations through the EUMETSAT/LSA SAF and EU/C3S Programmes: The Versatile Algorithm of PYALUS
2021
Remote Sensing
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Land surface albedo quantifies the fraction of the sunlight reflected by the surface of the Earth. ...
At the time being, the method has been applied to 11 sensors in the framework of two European initiatives (Satellite Application Facility on Land Surface Analysis—LSA SAF, and Copernicus Climate Change ...
Pardé for their assistance in the implementation of the improvement in the algorithms and for their help to visualise the data. We thank E. Swinnen, R. Lacaze and D. ...
doi:10.3390/rs13030372
fatcat:nlr4sxuwezhmxetxbfwh5iky64
Desert dust satellite retrieval intercomparison
2012
Atmospheric Measurement Techniques Discussions
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The satellite instruments considered are AATSR, AIRS, MERIS, MISR, MODIS, OMI, POLDER, and SEVIRI. ...
These include multi-angle approaches (MISR, AATSR), polarisation measurements (POLDER), single-view approaches using solar 10 wavelengths (OMI, MODIS), and the thermal infrared spectral region (SEVIRI, ...
University of Oxford authors acknowledge support from the National Centre of Earth Observation. Ben Veihelmann's contribution to this paper was supported by by ...
doi:10.5194/amtd-5-691-2012
fatcat:bva7kcau35eizhkyptnc7lcuwe
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