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Aude Lemonsu, A. Leroux, N. Benbouta, S. B é lair, J. Mailhot

URBAN LAND-USE LAND-COVER CLASSIFICATION & ANTHROPOGENIC HEAT FLUX DATABASE. Aude Lemonsu, A. Leroux, N. Benbouta, S. B é lair, J. Mailhot. Q H Industry. Q E Industry. Q H Traffic. Q E Traffic. Input data for urban modeling. Urban canopy characteristics Vegetation/built fractions

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Aude Lemonsu, A. Leroux, N. Benbouta, S. B é lair, J. Mailhot

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  1. URBAN LAND-USE LAND-COVER CLASSIFICATION & ANTHROPOGENIC HEAT FLUX DATABASE Aude Lemonsu, A. Leroux, N. Benbouta, S. Bélair, J. Mailhot

  2. QH Industry QE Industry QH Traffic QE Traffic Input data for urban modeling Urban canopy characteristics • Vegetation/built fractions • Material properties • Geometric parameters • Building height • Roughness length • Aspect ratio of street-canyons  Urban LULC classification Heat and moisture anthropogenic forcing • Traffic (inside street-canyons) • Industrial activities (above canopy)  Anthropogenic flux database

  3. Urban LULC Classification criteria selection 60-m aggregation of classification criteria 60-m LULC classification Surface characterization 15-m unsupervised classification ASTER/Landsat-7 40 built and vegetated simple elements regrouped in 11 simple elements/criteria • Excluded • Water • Soils • Crops • Short grass • Mixed forest • Mixed shrubs • Excluded covers • Water • Trees • Low vegetation • Grass • Soil and rocks • Roof • Concrete • Asphalt • Veg/built 1 • Veg/built 2 • Built • Built2 • Height Decision tree • Excluded covers • Water • Trees • Low vegetation • Grass • Soil and rocks • Roof • Concrete • Asphalt • Veg/built 1 • Veg/built 2 • High buildings • Mid-high buildings • Low buildings • Very low buildings • Industrial areas • Sparse buildings • Roads and parkings • Road mix • Dense residential • Mid-density residential • Low-density residential • Mix nature and built Building height estimation 15-m elevation database SRTM-DEM minus NED/CDED1 Elevation for built-up pixels

  4. N Excluded Water Trees Low vege Grass Soil & rocks Roof Concrete Asphalt Veg/built 1 Veg/built 2 Building height estimation ASTER unsupervised classification

  5. Urban LULC Classification criteria selection 60-m aggregation of classification criteria 60-m LULC classification Surface characterization 15-m unsupervised classification ASTER/Landsat-7 40 built and vegetated simple elements regrouped in 11 simple elements/criteria • Excluded • Water • Soils • Crops • Short grass • Mixed forest • Mixed shrubs • Excluded covers • Water • Trees • Low vegetation • Grass • Soil and rocks • Roof • Concrete • Asphalt • Veg/built 1 • Veg/built 2 • Built • Built2 • Height Decision tree • Excluded covers • Water • Trees • Low vegetation • Grass • Soil and rocks • Roof • Concrete • Asphalt • Veg/built 1 • Veg/built 2 • High buildings • Mid-high buildings • Low buildings • Very low buildings • Industrial areas • Sparse buildings • Roads and parkings • Road mix • Dense residential • Mid-density residential • Low-density residential • Mix nature and built Building height estimation 15-m elevation database SRTM-DEM minus NED/CDED1 Elevation for built-up pixels

  6. N High buildings Mid-high buildings Low buildings Very low buildings Sparse buildings Industrial areas Roads and parkings Road mix Dense residential Mid-density residential Low-density residential Mix of nature and built Soils Crops Short grass Mixed forest Mixed shrubs Water Excluded Oklahoma City 60-m resolution classification

  7. Anthropogenic heat sources Industry State/Month or year Data related with heat sources • Electricity consumption • Fuel consumption • Vehicle distance traveled Traffic City/Day Total daily energy • Population density • Road network • Industry land use Spatial disaggregating Hourly heat fluxes interpolated on the model grid Daily temporal profile of energy consumption Temporal disaggregating Anthropogenic heat database

  8. 8 6 4 2 0 3 6 9 12 15 18 21 24 5 Vehicular traffic (work day) Electricity consumption (summer) 4 Fraction 3 3 6 9 12 15 18 21 24 Time (LST) Time (LST) Anthropogenic heat database Application to Oklahoma City 17:00 LST • Anthropogenic heat sources computed for summer • Temporal disaggregating based on Sailor’s works • Spatial disaggregating based on: • Population density and road network for traffic sources • Industrial land use for industrial sources

  9. HIGH BUILDINGS ELEVATION >30 m MID-HIGH BUILDINGS ELEVATION >20 m LOW BUILDINGS ELEVATION >10 m BUILT2 >20% VERY LOW BUILDINGS ROADS AND PARKINGS HIGH BUILDINGS LAND/SEA MASK ELEVATION >30 m ROADS >80% MID-HIGH BUILDINGS BUILT>10% ELEVATION >20 m LOW BUILDINGS VEGETATION WATER<80% ELEVATION >10 m VERY LOW BUILDINGS WATER BUILT2>20% BUILT>45% ROAD BORDERS ROOF>20% VEGETATION CLASSES HIGH BUILDINGS DENSE RESIDENTIAL ELEVATION >30 m BUILT >70% MID-HIGH BUILDINGS MID-DENSITY RESIDENTIAL DECIDUOUS BROADLEAF TREES ELEVATION >20 m LOW BUILDINGS SHORT GRASS AND FORBS RESID + MIX >40% ELEVATION >10 m BUILT2 >20% VERY LOW BUILDINGS LONG GRASS ROAD BORDERS BUILT >70% SPARSE BUILDINGS CROPS ELEV>10 m BUILT2>20% ROAD BORDERS MIXED WOOD FOREST BUILT >40% SPARSE BUILDINGS ELEV>10 m BUILT2>20% LOW-DENSITY RESIDENTIAL LOW VEG+ GRASS>60% BUILT & NATURE MIX Decision tree

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