8/12/2019 LHS Progress _ Brownbag June 2014

1/40

Development of a Heat Adaptation Plan for Louisville:Project Update

Brian Stone & Jason Vargo

Urban Climate LabGeorgia Institute of Technology

www.urbanclimate.gatech.edu

twitter.com/urbanclimatelab

8/12/2019 LHS Progress _ Brownbag June 2014

2/40

Overview

What is an urban heat island?

Extreme heat and health

Louisville heat adaptation study and plan

Initial findings

8/12/2019 LHS Progress _ Brownbag June 2014

3/40

NASA

Urban temperature anomaly

8/12/2019 LHS Progress _ Brownbag June 2014

4/40

Drivers of the urban heat island

1. Loss of natural vegetation

2. Replacement of vegetation

with impervious materials

3. Waste heat from vehicles, industry,building air conditioning

4. Trapping of heat by

building canyons

8/12/2019 LHS Progress _ Brownbag June 2014

5/40

How rapidly are cities warming?

8/12/2019 LHS Progress _ Brownbag June 2014

6/40

UrbanC

limateLab

rural areas have warmed by about 1.5 OF over 50 years

8/12/2019 LHS Progress _ Brownbag June 2014

7/40

urban areas are about 1.5OF warmer than rural areas

8/12/2019 LHS Progress _ Brownbag June 2014

8/40

most of the temperature anomaly in cities isattributable to heat island effect

8/12/2019 LHS Progress _ Brownbag June 2014

9/40

urban areas are warming more rapidlyover time than rural areas

8/12/2019 LHS Progress _ Brownbag June 2014

10/40

global vs. urban rates of warming (F/decade): 1961-2010

8/12/2019 LHS Progress _ Brownbag June 2014

11/40

Urban climate change rankings

0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80

NEW ORLEANS

SEATTLE

HARTFORD

CHARLOTTE

BOISE

NEW YORK

ST LOUIS

PHILADELPHIA

MINNEAPOLIS

EL PASO

ALBUQUERQUE

BATON ROUGE

WASHINGTON DC

RICHMOND

PORTLAND

TOLEDO

OKLAHOMA CITY

SYRACUSE

LAS VEGAS

INDIANAPOLIS

DETROIT

GREENSBORO

ATLANTA

PHOENIX

LOUISVILLE

Temperature oFWarming per decade in excess of rural trend (F)warming in excess of rural trend (F/decade)

Urban warming rankings

8/12/2019 LHS Progress _ Brownbag June 2014

12/40

heat waves in US cities are hotter, longer,

more frequent, and earlier in the year

Habeeb,

Vargo&S

tone

!"#$!"%&

'"&(

'")%

*"*)

#"&&

#"+&

!"&&

!"+&

'"&&

'"+&

*"&&

*"+&

+"&&

#$(&, #$)&, #$%&, #$$&, !&&&,

!"#$%&'()*+,

%*+- &+"* /,*01*234

!"$% '"#!

'"!+ '"*#

'"!'

#"&&

#"+&

!"&&

!"+&

'"&&

'"+&

*"&&

#$(&, #$)&, #$%&, #$$&, !&&&,

%*+- &+"* 51,+-672

!%"(

')"* '$"(

*)"#+&"%

#&"&

#+"&

!&"&

!+"&

'&"&

'+"&

*&"&

*+"&

+&"&

++"&

(&"&

#$(&, #$)&, #$%&, #$$&, !&&&,

!"#5+4'()*+,

%*+- &+"* 8*+'72

#"('

#")) #"%*

#"$+ !"&!

#"&&

#"!&

#"*&

#"(&

#"%&

!"&&

!"!&

#$(&, #$)&, #$%&, #$$&, !&&&,

%*+- &+"* 92-*2'6-4

!

"#5+4'(%&()*+,

!"#:;!