Fine Scale Meteorology & Air Quality Models - School of Architecture ...

ASI2_Lecture 3_7/12/2011
Cooling California Cities:
Cases refer to different ranges of increasing albedo
and canopy coverage (surrogate for moisture)
Taha 2008, BLM 127: 218‐239
Delta T (K)
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
San Fernando Valley
0
23
7
15
23
7
15
23
7
15
23
7
15
23
case-01
case-02
case-10
case-20
case-22
LST
Los Angeles
1
0
Delta T (K)
-1
-2
-3
23
-4
7
15
23
7
15
23
7
15
23
7
case-01
15
23
case-02
case-10
case-20
case-22
LST
San Diego
0
Delta T (K)
-0.5
-1
-1.5
-2
-2.5
23
-3
7
15
23
7
15
23
7
15
23
7
15
23
case-01
case-02
case-10
case-20
case-22
LST
ASI 2: URBAN CLIMATE AND AIR POLLUTION School of Architecture, The Chinese University of Hong Kong, Hong Kong, 7-8 Dec 2011
Air Quality response to UHI modeled modifications:
Comparison against base case for Sacramento CA
Taha 2008: BLM V127: 218‐239
Base case [O3]
Base- Change
(albedo change)
Change in [O3] from base case at time of peak.
Increased urban albedo scenario (corresponds to a reduction
of 2‐3C in air temperature)
ASI 2: URBAN CLIMATE AND AIR POLLUTION School of Architecture, The Chinese University of Hong Kong, Hong Kong, 7-8 Dec 2011
15