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Article Reference Atelestidae (Diptera: Empidoidea) from the Botanic Garden Jean Massart with a first record from Belgium of the very rare Meghyperus sudeticus Loew, 1850 and an update on the Belgian Atelestidae
Located in Library / RBINS Staff Publications 2023 OA
Article Reference Ath/Ghislanghien : vestiges protohistoriques dans le parc d’activité économique Orientis III.
Imprimé avril 2022
Located in Library / RBINS Staff Publications 2022
Article Reference Atmospheric CO2 flux from mangrove surrounding waters.
The partial pressure of CO 2 (pCO2) was measured at daily and weekly time scales in the waters surrounding mangrove forests in Papua New Guinea, the Bahamas and India. The pCO2 values range from 380 to 4800 æatm. These data, together with previously published data, suggest that overall oversaturation of CO2 with respect to atmospheric equilibrium in surface waters is a general feature of mangrove forests, though the entire ecosystems (sediment, water and vegetation) are probably sinks for atmospheric CO2. The computed CO2 fluxes converge to about +50 mmolC m -2 day-1. If this conservative value is extrapolated for worldwide mangrove ecosystems, the global emission of CO2 to the atmosphere is about 50 106 tC year-1. Based on this tentative estimate, mangrove waters appear to be regionally a significant source of CO2 to the atmosphere and should be more thoroughly investigated, especially at seasonal time scale.
Located in Library / No RBINS Staff publications
Article Reference Atmospheric correction of Landsat-8 Imagery using Seadas. Submitted for the proceedings of the Sentinel-2 for Science Workshop held in Frascati, Italy, 20-23 May 2014.
Located in Library / RBINS Staff Publications
Article Reference Atmospheric correction of Sentinel-3/OLCI data for mapping of suspended particulate matter and chlorophyll-a concentration in Belgian turbid coastal waters
The performance of different atmospheric correction algorithms for the Ocean and Land Colour Instrument (OLCI) on board of Sentinel-3 (S3) is evaluated for retrieval of water-leaving radiance reflectance, and derived parameters chlorophyll-a concentration and turbidity in turbid coastal waters in the Belgian Coastal Zone (BCZ). This is performed using in situ measurements from an autonomous pan-and-tilt hyperspectral radiometer system (PANTHYR). The PANTHYR provides validation data for any satellite band between 400 and 900 nm, with the deployment in the BCZ of particular interest due to the wide range of observed Near-InfraRed (NIR) reflectance. The Dark Spectrum Fitting (DSF) atmospheric correction algorithm is adapted for S3/OLCI processing in ACOLITE, and its performance and that of 5 other processing algorithms (L2-WFR, POLYMER, C2RCC, SeaDAS, and SeaDAS-ALT) is compared to the in situ measured reflectances. Water turbidities across the matchups in the Belgian Coastal Zone are about 20–100 FNU, and the overall performance is best for ACOLITE and L2-WFR, with the former providing lowest relative (Mean Absolute Relative Difference, MARD 7–27\%) and absolute errors (Mean Average Difference, MAD -0.002, Root Mean Squared Difference, RMSD 0.01–0.016) in the bands between 442 and 681 nm. L2-WFR provides the lowest errors at longer NIR wavelengths (754–885 nm). The algorithms that assume a water reflectance model, i.e. POLYMER and C2RCC, are at present not very suitable for processing imagery over the turbid Belgian coastal waters, with especially the latter introducing problems in the 665 and 709 nm bands, and hence the chlorophyll-a and turbidity retrievals. This may be caused by their internal model and/or training dataset not being well adapted to the waters encountered in the BCZ. The 1020 nm band is used most frequently by ACOLITE/DSF for the estimation of the atmospheric path reflectance (67\% of matchups), indicating its usefulness for turbid water atmospheric correction. Turbidity retrieval using a single band algorithm showed good performance for L2-WFR and ACOLITE compared to PANTHYR for e.g. the 709 nm band (MARD 15 and 17\%), where their reflectances were also very close to the in situ observations (MARD 11\%). For the retrieval of chlorophyll-a, all methods except C2RCC gave similar performance, due to the RedEdge band-ratio algorithm being robust to typical spectrally flat atmospheric correction errors. C2RCC does not retain the spectral relationship in the Red and RedEdge bands, and hence its chlorophyll-a concentration retrieval is not at all reliable in Belgian coastal waters. L2-WFR and ACOLITE show similar performance compared to in situ radiometry, but due to the assumption of spatially consistent aerosols, ACOLITE provides less noisy products. With the superior performance of ACOLITE in the 490–681 nm wavelength range, and smoother output products, it can be recommended for processing of S3/OLCI data in turbid waters similar to those encountered in the BCZ. The ACOLITE processor for OLCI and the in situ matchup dataset used here are made available under an open source license.
Located in Library / RBINS Staff Publications 2021
Techreport Reference Attraction of harbour porpoises to offshore wind farms: what can be expected? In: S. Degraer, R. Brabant and B. Rumes (Eds.) Environmental impacts of the offshore windfarms in the Belgian part of the North Sea: learning from the past to optimize future m
Located in Library / RBINS Staff Publications
Conference Reference Au nord, deuil dans les corons. Analyse anthropologique des victimes non identifiées de la catastrophe du Bois du Cazier (1956, Belgique).
Le 8 août 1956, la catastrophe minière la plus meurtrière de Belgique se produisit au charbonnage du Bois du Cazier à Marcinelle : 262 mineurs de nationalités diverses (belge, italienne, allemande, algérienne, grecque, …) périrent à la suite d’une erreur humaine. Tous furent identifiés à l’exception de 17 d’entre eux. En octobre 2021, à la demande d’un descendant des victimes non identifiées, la Cellule d’Identification des Victimes de Catastrophes de la Police Fédérale a lancé une grande opération afin d’exhumer les restes des inconnus et de procéder à leur identification. Les analyses ont été réalisées par une équipe composée d’experts en pathologie médico-légale, en odontologie, en anthropologie, en archéologie et en ADN. Nous présentons ici les résultats de l’analyse anthropologique. Après l’inventaire des restes, le profil biologique de chaque individu a été reconstitué. La DSP a été utilisée pour déterminer le sexe et sept méthodes différentes ont été appliquées pour estimer l’âge au décès, y compris la cémentochronologie. La stature a été estimée à l’aide des équations de Raxter et d’Oliver, tandis que l’origine bio-géographique a été évaluée avec AncesTrees. La confrontation des registres ante-mortem (stature, âge, pathologies et particularités physiques) avec les données post-mortem nous a permis de proposer une identification pour huit individus. Quatre d’entre elles ont été confirmées par l’ADN. Au-delà de l’identification permettant de mener à bien ce devoir de mémoire envers les familles des victimes, cette mission nous a donné l’opportunité d’enregistrer des données précieuses pour d’autres domaines de recherche comme les traumatismes péri-mortem et les marqueurs d’activité résultant des pénibles conditions de travail des mineurs de fond.
Located in Library / RBINS Staff Publications 2024
Article Reference Australian Cleotychini planthoppers: review of the genus Cleotyche Emeljanov, 1997 with three new species (Hemiptera: Fulgoromorpha: Dictyopharidae)
Located in Library / RBINS Staff Publications 2022
Inproceedings Reference Authenticating fish and seafood products for sale on the Belgian market
Located in Library / RBINS Staff Publications 2017
Article Reference Authorship and date of five family-series nomina in Oligochaeta (Annelida): Lumbricidae, Naididae, Enchytraeidae, Tubificidae and Lumbriculidae
Located in Library / RBINS Staff Publications 2021