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Inproceedings Reference Use of the near infrared similarity reflectance spectrum for the quality control of remote sensing data
The shape of water-leaving reflectance spectra in the near infrared range 700-900nm is almost invariant for turbid waters and has been analysed and tabulated as a similarity spectrum by normalisation at 780nm. This similarity spectrum is used here for the quality control of seaborne reflectance measurements and for the improvement of sky glint correction. Estimates of the reflectance measurement error associated with imperfect sky glint correction from two different wavelength pairs are shown to be nearly identical. A demonstration of residual reflectance correction for data collected in cloudy, high wave conditions has shown that this correction removes a large source of variability associated with temporal variation of the wave field. The error estimate applied here to seaborne measurements has wide-ranging generality and is appropriate for any water-leaving reflectance spectra derived from seaborne, airborne or satellite borne sensors provided suitable near infrared bands are available.
Located in Library / RBINS Staff Publications
Inproceedings Reference Use of the near infrared similarity reflectance spectrum for the quality control of remote sensing data
The shape of water-leaving reflectance spectra in the near infrared range 700-900nm is almost invariant for turbid waters and has been analysed and tabulated as a similarity spectrum by normalisation at 780nm. This similarity spectrum is used here for the quality control of seaborne reflectance measurements and for the improvement of sky glint correction. Estimates of the reflectance measurement error associated with imperfect sky glint correction from two different wavelength pairs are shown to be nearly identical. A demonstration of residual reflectance correction for data collected in cloudy, high wave conditions has shown that this correction removes a large source of variability associated with temporal variation of the wave field. The error estimate applied here to seaborne measurements has wide-ranging generality and is appropriate for any water-leaving reflectance spectra derived from seaborne, airborne or satellite borne sensors provided suitable near infrared bands are available.
Located in Library / RBINS Staff Publications / Pending Duplicate Bibliography Entries
Inproceedings Reference Use of the near infrared similarity reflectance spectrum for the quality control of remote sensing data
The shape of water-leaving reflectance spectra in the near infrared range 700-900nm is almost invariant for turbid waters and has been analysed and tabulated as a similarity spectrum by normalisation at 780nm. This similarity spectrum is used here for the quality control of seaborne reflectance measurements and for the improvement of sky glint correction. Estimates of the reflectance measurement error associated with imperfect sky glint correction from two different wavelength pairs are shown to be nearly identical. A demonstration of residual reflectance correction for data collected in cloudy, high wave conditions has shown that this correction removes a large source of variability associated with temporal variation of the wave field. The error estimate applied here to seaborne measurements has wide-ranging generality and is appropriate for any water-leaving reflectance spectra derived from seaborne, airborne or satellite borne sensors provided suitable near infrared bands are available.
Located in Library / RBINS Staff Publications / Pending Duplicate Bibliography Entries
Conference Reference Uses of DINEOF algorithm (Data interpolation with Empirical Orthogonal Functions) for reconstruction and analysis of incomplete satellite databases over the North Sea and the Mediterranean, synthesis from the RECOLOUR project.
Located in Library / RBINS Staff Publications
Inproceedings Reference Using ancient DNA to identify Bos primigenius in ancient cattle remains from Belgium
Aurochs (Bos primigenius) are the wild ancestors of the domesticated taurine cattle (Bos taurus). During the Holocene, populations of aurochs gradually declined until their extinction at the turn of the 17th century. DNA data suggest that domestic cattle in Europe descended from Near East aurochs that were domesticated and brought to Europe by the first farmers during the Neolithic period. Hybridization occurred more recently in Europe between domestic cattle and local wild aurochs. Most aurochs can be distinguished from domestic cattle osteometrically, but large-sized domestic cattle may be misidentified as aurochs. Based on mitochondrial DNA, most European aurochs differ from domestic cattle (haplogroup “P” versus “T”). With the aim to provide new data on the former distribution of aurochs in Europe, we used mitochondrial DNA to identify large bovid bones attributed to aurochs and dating from Epipaleolithic to medieval times. DNA was extracted from the bones of 11 specimens from Belgium in an ancient DNA lab. Shotgun DNA sequencing provided raw reads comprising 0.02-10% of endogenous DNA. For three samples, reads covered 74-98% of the bovid mitochondrial genome and enabled the identification of one aurochs from the Bronze Age (haplogroup “P”) and two cows from Roman and medieval times (haplogroup “T”). Among the other samples (covering 2-18% of the mitogenome), three Roman specimens could be assigned to the haplogroup “T” based on a few diagnostic positions. This study provides the first mitogenomic data for a Belgian aurochs and contributes to the identification of exceptionally large Roman bovid remains.
Located in Library / RBINS Staff Publications 2023
Proceedings Reference Using Belgian Ringing Data to Estimate Bird Population Trends: A comparative Analysis. “Monitoring, indicators and targets".
Located in Library / RBINS Staff Publications
Inproceedings Reference Using DNA barcodes for assessing diversity of dance flies (Diptera: Empidoidea) and as a basis for phylogenetic research
Located in Library / RBINS Staff Publications
Proceedings Reference Using DNA barcodes for diversity assessment in Hybotidae (Diptera, Empidoidea)
Located in Library / RBINS Staff Publications
Inproceedings Reference Using Fibre-Optic DAS surveying to de-risk a shallow geothermal energy storage site in Brussels, Belgium
Europe is working hard to meet its first climate goals. With High Temperature Aquifer Thermal Energy Storage (HT-ATES) large quantities of green energy can be stored in the subsurface in the form of heat. It is important that a site is characterised well as leakage from the reservoir would degrade the efficiency of the system, and could also endanger potable water supplies. Seismic imaging is currently the method with highest resolution and the largest de-risking capability for geothermal projects. This study pursues the use of fibre-optic distributed acoustic sensing (FO-DAS) technology in seismic acquisition to improve the de-risking ability of seismic data in urban HT-ATES settings. In 2019 TNO and GSB combined a dense surface based high resolution seismic survey with a FO-DAS VSP survey on a potential ATES site in the city of Brussels, Belgium. Besides the technology demonstration, targets were aquifer + seal continuity and depth away from the well as well as acoustic velocity of the sediment overburden for H/V Spectral Ratio calibration. The intermediate result indicates that with FO-DAS it is possible to image the subsurface relatively easy, fast, at low cost and with low environmental impact, even in busy seismically noisy urban areas.
Located in Library / RBINS Staff Publications 2020
Inproceedings Reference Using Historical Imagery and GIS for Reconstructing the Ancient Landscapes of Khuzestan (SW Iran)
Located in Library / RBINS Staff Publications