CHALEUR ANTHROPIQUE, ESTIMATION : CAS De L’OKLAHOMA CITY

DIAGRAMME de L’ APPROCHE TOP-DOWN

DISTRIBUTION TEMPORELLE

STATISTIQUES

RÉSULTATS, 17 heures ( maximum de jour)

CONCLUSION Et FUTURE WORK

SourcesOf Heat

Releases

Estimation Of Daily Total Energy

Hourly EnergyReleases

Spatialdisaggregating

Grid Model Hourly Fluxes

Data Representing The Heat’s Source At City/State LevelAt Year/Month/Day

Diurnal Temporal Profile

Population

Vehicular Traffic City - DailyIndustry

State - Monthly/Annual

ANTHROPOGENIC HEAT: FORMULA

HOURLY VALUES

E : Daily Energy In a Defined Surface S ( Joules) Ei : Energy at Hour I ( Joules)

Qi : Flux at Hour I in S ( Watt/m2) QC : Sum of 24 Hourly Fluxes ( Watt/m2)

1)24

1(

)(

iihF

ihFEiE

24

1

24

1

)(3600

13600

1)(

3600

1

i iihF

SEiQ

SihFESiEiQ

QC =1

)( ihFQCiQ

ANTHROPOGENIC HEAT: STATISTICS for OKCcomparison of our estimates with Sailor’s

DAILY VALUES (by Heat Source)

DAILY CUMULATIVE HEAT FLUX (QC)

Heat, Vehiculat Traffic Heat, Industry Heating Fuel Heat, Industry Electricity Heat, VEH+IND

136.224 TeraJoules 124.20 TeraJoules 19.332 TeraJoules 279.756 TeraJoules

IND représente 62.4% de ( RES+COM+IND )

RES+COM Représente 37.6% de ( RES+COM+IND )

Oklahoma City Surface

(KM2)

Q SUM (IND+VEH)

(Watt/M2)

Q SUM Total

(Watt/M2)Q SUM Total (Watt/M2)

Daily Sailor's Value

1572,1 49,5 64,7

Mean: 48.24 Min: 39.45 Mai Max: 62.8 December

ANTHROPOGENIC HEAT in dense population areas

OKLAHOMA CITY MAP, BLOCK GROUP LEVEL

32

7 6

Census tract #1067.03

Density: Persons/Square mile

BG 3: 17486BG 2: 14775BG 6: 11365 BG 7: 4632

Daily Heat Flux: Watt/m2

BG 3: 1032BG 2: 872.34BG 6: 671 BG 7: 273.48

S

EQC

3600

In densely populated area « 3 » daily heat flux = 1032 W/m*2 (VS OKC average: 65)

Temporal Profile : Vehicular Traffic

Vehicular TraficWork Day

0

1

2

3

4

5

6

7

8

9

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

8.1%

Temporal Profile : Industrial Sector - Electricity

Electricity-Summer

3

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

4.8%

Temporal Profile : Industrial Sector - Heating Fuel

4.8%

0,000

2,000

4,000

6,000

8,000

10,000

12,000

14,000

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

4.167%

ANTHROPOGENIC HEAT: Results for 17h CDT(on 250x250m model grid)

Summer, OKC

Surrogate: Population

Total Heat Flux at 17h CDT

* Daily QC ranges on any point from 0 to 573 [Wm-2]

)()()( hSFmailleSQChmailleQ

mailleS

mailleEmailleSQC

3600

)(

ANTHROPOGENIC HEAT: Results

Summer, OKC

Surrogate : Population + Industrial Land

Total Heat Flux at h = 17:00

QC From 0 to 1278 [Wm-2]

)()()( hSFmailleSQChmailleQ

mailleS

mailleEmailleSQC

3600

)(

ANTHROPOGENIC HEAT: Results

mailleS

mailleEmailleSQC

3600

)(

)()()( hSFmailleSQChmailleQ

Summer, OKC

Surrogate : Pop-Road + Industrial Land

Total Heat Flux at h = 17:00

QC From 0 to 1858 [Wm-2]

CHALEUR ANTHROPIQUE, ESTIMATION : CAS De L’OKLAHOMA CITY

CONCLUSION

distribuer de la chaleur anthropique par (Population + Road + Industrial Land ).

Génération d’une Base de donnée à haute résolution (200m)

Pour des résolutions plus lâches que 200m: agrégation en utilisant avec Gengeo.

Prochaines étapes

Génération Des Flux sur la grille du modèle à 2.5 km et 1 km de résolution. obtention des données requises pour générer les flux pour Montréal et Vancouver (à voir)