A5075785879- Urban Heat Island Mitigation
- Remote Sensing and Land Use
- Land Use and Ecosystem Services
- Plant Water Relations and Carbon Dynamics
- Wind and Air Flow Studies
- Atmospheric chemistry and aerosols
- Building Energy and Comfort Optimization
- Meteorological Phenomena and Simulations
- Remote Sensing in Agriculture
- Plant responses to elevated CO2
- Water-Energy-Food Nexus Studies
- Atmospheric and Environmental Gas Dynamics
- Odor and Emission Control Technologies
- Gyrotron and Vacuum Electronics Research
- Environmental and Agricultural Sciences
- Offshore Engineering and Technologies
- Non-Destructive Testing Techniques
- Urban Stormwater Management Solutions
- Aeolian processes and effects
- Hydrology and Watershed Management Studies
- Wind Energy Research and Development
- Soil Moisture and Remote Sensing
- Fluid Dynamics and Turbulent Flows
- Calibration and Measurement Techniques
- Plasma Applications and Diagnostics
Laboratoire de Recherche Hydrodynamique, Energétique et Environnement Atmosphérique
2013-2024
Centre National de la Recherche Scientifique
2011-2024
École Centrale de Nantes
2019-2024
Nantes Université
2024
Institut de Recherche en Génie Civil et Mécanique
2016
Université de Toulouse
2012
Centre d'Études Spatiales de la Biosphère
2009-2012
Université Toulouse III - Paul Sabatier
2011-2012
Institut de Recherche pour le Développement
2011-2012
Abstract. Terrestrial ecosystems represent a major sink for ozone (O3) and also critical control of tropospheric O3 budget. However, due to its deleterious effects, plant functioning is affected by the absorbed. It thus necessary both predict total deposition partition fluxes in stomatal non-stomatal pathways. The Surfatm-O3 model was developed agroecosystems from sowing harvest, taking into account each pathways during bare soil, growth, maturity, senescence periods. An additional added...
The influence of the content and nature impurities on rotational temperature three probe molecules (OH, NH ) in a helium plasma created microwave resonant cavity is investigated by synthetic spectra method mass spectrometry. OH found to be only reliable obtain satisfactory estimation gas temperature. In our experimental conditions, depending impurity, varies strongly at 500 ppm, for instance, difference 700 K possible (∼30% mean temperature).
ou non, émanant des établissements d'enseignement et de recherche français étrangers, laboratoires publics privés.
Abstract. A comprehensive meteorological dataset from an operational wind farm, consisting of six 2 MW turbines, has been made available. mast, equipped with sonic anemometers at four different heights, was installed the center farm and collected data over three years. The is further supplemented radiometer measurements for atmospheric stability analysis. Simultaneously, supervisory control acquisition (SCADA) were acquired to provide information about including inter alia power production...
Abstract. The use of scintillometers to determine sensible heat fluxes is now common in studies land-atmosphere interactions. main interest these instruments due their ability quantify energy distributions at the landscape scale, as they can calculate flux values over long distances, contrast Eddy Covariance systems. However, scintillometer data do not provide a direct measure flux, but require additional data, such Bowen ratio (β), values. either be measured using systems or derived from...
The MCM'10 experiment (Multi-sensors Crop Monitoring, 2010) aims to evaluate the potentialities of optical, microwave and thermal satellite images for monitoring agricultural surfaces. Experiment is conducted during ten month in 2010, from February November over a super-site located South West France. Remote sensing data (>;150 images) are provided by nine low orbit satellites, high spatial resolutions (several meters 50km). Ground collected winter summer crops, quasi synchronously with...
Abstract. The disjunct eddy covariance (DEC) method is an interesting alternative to the conventional (EC) because it allows estimation of turbulent fluxes species for which fast sensors are not available. We have developed and validated a new sampling system (called MEDEE). This built with chemically inert materials. Air samples taken quickly alternately in two cylindrical reservoirs, internal pressures regulated by moving piston. MEDEE was designed be operated either on ground or aboard...
The recent availability of high spatial resolution sensors offers new perspectives for terrestrial applications (agriculture, risks). aim this work is to develop a methodology deriving biophysical variables (Green Leaf Area Index - GLAI, phytomass) from multi-temporal observations at in order run crop model regional scale. Accurate predictive models require large set input parameters, which are not easily available over area. Spatial upscaling such thus difficult. use simple avoids issues....
Shelters used to protect air temperature sensors from solar radiation induce a measurement error. This work presents semi-empirical model based on meteorological variables evaluate this The equation is the analytical solution of simplified energy balance performed naturally ventilated shelter. Two main physical error causes are identified equation: one due shelter response time and other its sensitivity. A intercomparison campaign by World Meteorological Organization (WMO) perform non-linear...
Nature-based solutions (NBS) are increasingly promoted to mitigate urbanization effects, such as the urban heat island. The release of latent requires availability water in soils. Models able represent both detailed and energy budgets needed for a reliable evaluation NBSs performances. TEB-Hydro model is recent hydro-microclimate that extends physics microclimate TEB-Veg processes subsoil order more realistically coupled budgets. Hence, aim this paper evaluate regarding how affect balance....
Abstract. The use of scintillometers to determine sensible heat fluxes is now common in studies land-atmosphere interactions. main interest these instruments due their ability quantify energy distributions at the landscape scale, as they can calculate flux values over long distances, contrast Eddy Correlation systems. However, scintillometer data do not provide a direct measure flux, but require additional data, such Bowen ratio (β), values. either be measured using systems or derived from...
The greening of cities has become a major component current urban development policies. This is taking new and variable forms, increasingly associated with rainwater management techniques. increase in vegetated surfaces can potentially encourage evapotranspiration. Increasing this process twofold advantage. On the one hand, It provides stormwater runoff reduction benefits and, on other, it promotes cooling environment. However, order to better quantify optimise evapotranspiration, necessary...
Abstract Several urban canopy models now incorporate vegetation to represent local cooling related natural soil and plant evapotranspiration. Nevertheless, little is known about the realism of simulating these processes turbulent exchanges within canopy. Here, coupled modeling thermal hydrological was investigated for a lawn located in an environment which temperature water content measurements were available. The ISBA diffusive (ISBA-DF) surface–vegetation–atmosphere transfer model inline...
Urban Heat Island (UHI) is defined as the air temperature difference between city and its surrounding areas. This phenomenon varies spatially (depending on type of urban fabric constituting each neighborhood) temporally time day, season weather conditions). contribution proposes a methodology to model UHI using simple models built with free open sources softwares (orbisGIS python language). Ten sensors have been implemented in several neighborhoods Nantes area (a west coast french...
Urban Heat Island (UHI) is defined as the air temperature difference between city and its surrounding areas. This phenomenon varies spatially (depending on type of urban fabric constituting each neighborhood) temporally time day, season weather conditions). contribution proposes a methodology to model UHI using simple models built with free open sources softwares (orbisGIS python language). Ten sensors have been implemented in several neighborhoods Nantes area (a west coast french...