Search Results - "Najjar, Georges"

Soil organic matter rather than ectomycorrhizal diversity is related to urban tree health by Van Geel, Maarten, Yu, Kang, Peeters, Gerrit, van Acker, Kasper, Ramos, Miguel, Serafim, Cindy, Kastendeuch, Pierre, Najjar, Georges, Ameglio, Thierry, Ngao, Jérôme, Saudreau, Marc, Castro, Paula, Somers, Ben, Honnay, Olivier

“…Urban trees provide many ecosystem services, including carbon sequestration, air quality improvement, storm water attenuation and energy conservation, to…”
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In vitro comparison of the color degradation of two computer-aided design/computer-aided manufacturing provisional materials: A 12-month simulation by Sayegh, Suzanna, Daou, Maha, Najjar, Georges, Zebouni, Elie

“…Aim: This study evaluated the color aging of two computer aided design/computer aided manufacturing (CAD/CAM) provisional materials of different compositions…”
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LCZ scheme for assessing Urban Heat Island intensity in a complex urban area (Beirut, Lebanon) by Badaro-Saliba, Nada, Adjizian-Gerard, Jocelyne, Zaarour, Rita, Najjar, Georges

“…Thermal remote sensing has become widely used to monitor and study Urban Heat Island (UHI) by the use of satellite Land Surface Temperature (LST) data, and the…”
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Thermal bioclimate in Strasbourg - the 2003 heat wave by Matzarakis, Andreas, De Rocco, Manuela, Najjar, Georges

“…This case study highlights the implications of the 2003 heat wave for the city of Strasbourg, France. The urban centers of France and other European countries…”
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Estimating the leaf area of an individual tree in urban areas using terrestrial laser scanner and path length distribution model by Hu, Ronghai, Bournez, Elena, Cheng, Shiyu, Jiang, Hailan, Nerry, Françoise, Landes, Tania, Saudreau, Marc, Kastendeuch, Pierre, Najjar, Georges, Colin, Jérôme, Yan, Guangjian

“…Urban leaf area measurement is crucial to properly determining the effect of urban trees on micro-climate regulation, heat island effect, building cooling, air…”
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Vegetation reflectance spectroscopy for biomonitoring of heavy metal pollution in urban soils by Yu, Kang, Van Geel, Maarten, Ceulemans, Tobias, Geerts, Willem, Ramos, Miguel Marcos, Serafim, Cindy, Sousa, Nadine, Castro, Paula M.L., Kastendeuch, Pierre, Najjar, Georges, Ameglio, Thierry, Ngao, Jérôme, Saudreau, Marc, Honnay, Olivier, Somers, Ben

“…Heavy metals in urban soils may impose a threat to public health and may negatively affect urban tree viability. Vegetation spectroscopy techniques applied to…”
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Sensitivity of simulated light interception and tree transpiration to the level of detail of 3D tree reconstructions by Bournez, Elena, Landes, Tania, Najjar, Georges, Kastendeuch, Pierre, Ngao, Jérôme, Saudreau, Marc

“…•3D reconstruction of trees can be performed using terrestrial laser scanner data.•The ideal level of detail can be validated thanks to a reference…”
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Thermo-radiative simulation of an urban district with LASER/F by Kastendeuch, Pierre Philippe, Najjar, Georges, Colin, Jérôme

“…The thermo-radiative model LASER/F aims at computing the energy balance of a district. The components of the urban fabric are represented in vectorial 3D and…”
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Variation in ectomycorrhizal fungal communities associated with Silver linden (Tilia tomentosa) within and across urban areas by Van Geel, Maarten, Yu, Kang, Ceulemans, Tobias, Peeters, Gerrit, van Acker, Kasper, Geerts, Willem, Ramos, Miguel A, Serafim, Cindy, Kastendeuch, Pierre, Najjar, Georges, Ameglio, Thierry, Ngao, Jérôme, Saudreau, Marc, Waud, Michael, Lievens, Bart, Castro, Paula Ml, Somers, Ben, Honnay, Olivier

“…Trees in urban areas face harsh environmental conditions. Ectomycorrhizal fungi (EcM) form a symbiosis with many tree species and provide a range of benefits…”
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Foliar optical traits indicate that sealed planting conditions negatively affect urban tree health by Yu, Kang, Van Geel, Maarten, Ceulemans, Tobias, Geerts, Willem, Ramos, Miguel Marcos, Sousa, Nadine, Castro, Paula M.L., Kastendeuch, Pierre, Najjar, Georges, Ameglio, Thierry, Ngao, Jérôme, Saudreau, Marc, Honnay, Olivier, Somers, Ben

“…•Soil sealing has a large impact on leaf functional trait variations of urban trees.•Trees planted in highly sealed soils have low specific leaf area and water…”
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FROM TLS POINT CLOUDS TO 3D MODELS OF TREES: A COMPARISON OF EXISTING ALGORITHMS FOR 3D TREE RECONSTRUCTION by Bournez, E., Landes, T., Saudreau, M., Kastendeuch, P., Najjar, G.

“…3D models of tree geometry are important for numerous studies, such as for urban planning or agricultural studies. In climatology, tree models can be necessary…”
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EVALUATION OF THE SEASONAL NIGHTTIME LST-AIR TEMPERATURE DISCREPANCIES AND THEIR RELATION TO LOCAL CLIMATE ZONES (LCZ) IN STRASBOURG by Del Pozo, S., Landes, T., Nerry, F., Kastendeuch, P., Najjar, G., Philipps, N., Lagüela, S.

“…More and more uses and applications are being given to local climate zone (LCZ) maps, which describe the structure of the urban and semi-urban areas. Among…”
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Coupling the TEB and Surfatm Models for Heat Flux Modelling in Urban Area: Comparison With Flux Measurements in Strasbourg (France) by Le Mentec, S., Stella, P., Najjar, G., Kastendeuch, P., Saudreau, M., Ngao, J., Améglio, T., Colin, J., Flick, D., Personne, E.

“…This study presents the coupling of TEB (Town Energy Balance) and Surfatm models developed for energy exchange estimates for urban impervious and vegetation…”
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UHI ESTIMATION BASED ON ASTER AND MODIS SATELLITE IMAGERY: FIRST RESULTS ON STRASBOURG CITY, FRANCE by Del Pozo, S., Landes, T., Nerry, F., Kastendeuch, P., Najjar, G., Philipps, N., Lagüela, S.

“…The increase in urbanization of cities coupled with some effects of climate change is leading to the emergence of urban microclimates. The rising temperatures…”
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Effects of the 20 March 2015 solar eclipse in Strasbourg, France by Kastendeuch, Pierre P., Najjar, Georges, Colin, Jérôme, Luhahe, Raphaël, Bruckmann, Francis

“…On 20 March 2015 a partial solar eclipse occurred at Strasbourg, France, with an obscuration of 72.4%. The consequences of this event were observed under…”
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IMPACT OF LEVEL OF DETAILS IN THE 3D RECONSTRUCTION OF TREES FOR MICROCLIMATE MODELING by Bournez, E., Landes, T., Saudreau, M., Kastendeuch, P., Najjar, G.

“…In the 21st century, urban areas undergo specific climatic conditions like urban heat islands which frequency and intensity increase over the years. Towards…”
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Upper-air wind profiles investigation for tropospheric circulation study by KASTENDEUCH, P. P, NAJJAR, G

“…Methods used to study the atmospheric circulation are essentially based on pressure classifications or geopotential fields. However, instead of using indirect…”
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New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration by Udo, S.O., Aro, T.O.

“…Data on global solar radiation (H), global photosynthetically‐active radiation (PAR), downward infrared sky radiation (IR) and sunshine duration (n) for a…”
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Mesoscale simulations of thermodynamic fluxes over complex terrain by Kastendeuch, Pierre Philippe, Lacarrere, Pierre, Najjar, Georges, Noilhan, Joel, Gassmann, Fritz, Paul, Patrice

“…Due to photochemical processes, most of the air quality problems arise during anticyclonic weather conditions in summer. Therefore, the problem is how…”
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Le cycle de l'eau en moyenne montagne tempérée : apport des bassins versants de recherche vosgiens (Ringelbach, Strengbach, Fecht) by AMBROISE, Bruno, AUZET, Anne-Véronique, HUMBERT, Joël, MERCIER, Jean-Luc, NAJJAR, Georges, PAUL, Patrice, VIVILLE, Daniel

“…Les bassins versants de recherche vosgiens étudiés depuis 1975 par le C.E.R.E.G. ont permis de préciser la variabilité spatio-temporelle des composantes du…”
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