Aude Lemonsu, A. Leroux, N. Benbouta, S. Bélair, J. Mailhot.

Aude Lemonsu, A. Leroux, N. Benbouta,

S. Bélair, J. Mailhot

Input data for urban modeling

QH Traffic

QE Traffic

QH Industry

QE Industry

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

Urban LULC

Building height estimation

15-m elevation databaseSRTM-DEM minus

NED/CDED1

Elevation for built-up pixels

Surface characterization15-m unsupervised

classificationASTER/Landsat-7

40 built and vegetated simple elements regrouped in 11 simple

elements/criteria1.Excluded covers

2.Water3.Trees4.Low

vegetation5.Grass6.Soil and rocks

1.Roof2.Concrete3.Asphalt4.Veg/built 15.Veg/built 2

60-m LULC classification

1.Excluded2.Water3.Soils4.Crops5.Short grass6.Mixed forest7.Mixed shrubs1. High buildings2. Mid-high buildings3. Low buildings4. Very low buildings5. Industrial areas6. Sparse buildings7. Roads and parkings8. Road mix9. Dense residential10.Mid-density

residential11.Low-density

residential12.Mix nature and built

Classification criteria

selection60-m aggregation of classification criteria

1.Excluded covers2.Water3.Trees 4.Low

vegetation5.Grass6.Soil and rocks7.Roof8.Concrete9.Asphalt10.Veg/built 111.Veg/built 2

12.Built

13.Built214.Height

Decision tree

N

ExcludedWaterTreesLow vegeGrassSoil & rocks

RoofConcreteAsphaltVeg/built 1Veg/built 2

ASTER unsupervised classification Building height estimation

Urban LULC

Building height estimation

15-m elevation databaseSRTM-DEM minus

NED/CDED1

Elevation for built-up pixels

Surface characterization15-m unsupervised

classificationASTER/Landsat-7

40 built and vegetated simple elements regrouped in 11 simple

elements/criteria1.Excluded covers

2.Water3.Trees4.Low

vegetation5.Grass6.Soil and rocks

1.Roof2.Concrete3.Asphalt4.Veg/built 15.Veg/built 2

60-m LULC classification

1.Excluded2.Water3.Soils4.Crops5.Short grass6.Mixed forest7.Mixed shrubs1. High buildings2. Mid-high buildings3. Low buildings4. Very low buildings5. Industrial areas6. Sparse buildings7. Roads and parkings8. Road mix9. Dense residential10.Mid-density

residential11.Low-density

residential12.Mix nature and built

Classification criteria

selection60-m aggregation of classification criteria

1.Excluded covers2.Water3.Trees 4.Low

vegetation5.Grass6.Soil and rocks7.Roof8.Concrete9.Asphalt10.Veg/built 111.Veg/built 2

12.Built

13.Built214.Height

Decision tree

High buildingsMid-high buildingsLow buildingsVery low buildingsSparse buildingsIndustrial areas

Roads and parkingsRoad mixDense residentialMid-density residentialLow-density residentialMix of nature and built

SoilsCropsShort grassMixed forestMixed shrubsWater

Excluded

Oklahoma City 60-m resolution classification

N

Anthropogenic heat database

IndustryState/Month or

year

TrafficCity/Day

Anthropogenicheat sourcesData related with heat

sources

Total daily energy

Spatialdisaggregating

Temporal disaggregating

Daily temporal profile of energy

consumption

▪ Population density▪ Road network▪ Industry land use

Hourly heat fluxes interpolatedon the model grid

– Electricity consumption– Fuel consumption– Vehicle distance traveled

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

Anthropogenic heat databaseApplication to Oklahoma City

0

2

4

6

8

3 6 9 12 15 18 21 243

4

5

3 6 9 12 15 18 21 24

Electricity consumption(summer)

Vehicular traffic(work day)

Time (LST) Time (LST)

Fract

ion

17:00 LST

DECIDUOUS BROADLEAF TREES

SHORT GRASSAND FORBS

LONG GRASS

CROPS

MIXED WOODFOREST

VEGETATION CLASSES

LAND/SEA MASK

WATER<80%

BUILT>10%

WATER

ROADS>80%

VEGETATION

BUILT2>20%

ELEVATION>20 m

ROADS ANDPARKINGS

ELEVATION>30 m

ELEVATION>10 m

HIGHBUILDINGS

MID-HIGHBUILDINGS

LOWBUILDINGS

VERY LOW BUILDINGS

RESID + MIX>40%

ELEVATION>30 m

HIGHBUILDINGS

ELEVATION>20 m

MID-HIGHBUILDINGS

ELEVATION>10 m

LOWBUILDINGS

BUILT2>20%BUILT>45%

VERY LOWBUILDINGS

ROADBORDERS

BUILT>70%

BUILT>70%

BUILT2>20%

BUILT>40%

ELEV>10 mBUILT2>20%

ELEV>10 mBUILT2>20%

SPARSEBUILDINGS

LOW VEG+GRASS>60%

DENSERESIDENTIAL

MID-DENSITYRESIDENTIAL ELEVATION

>20 m

ROADBORDERS

ELEVATION>30 m

ELEVATION>10 m

HIGHBUILDINGS

MID-HIGHBUILDINGS

LOWBUILDINGS

VERY LOWBUILDINGS

SPARSEBUILDINGS

ROADBORDERS

LOW-DENSITYRESIDENTIAL

BUILT &NATURE MIX

ROOF>20%

Decision tree