The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners.
As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i
Where Are White Roofs More Effective in Cooling the Surface?
-
2020
-
-
Source: Geophysical Research Letters, 47(15)
[PDF-6.96 MB]
Details:
-
Journal Title:Geophysical Research Letters
-
Personal Author:
-
NOAA Program & Office:
-
Description:By re flecting more sunlight, white (cool) roofs experience lower surface temperatures and produce less heating of the surrounding air. The effectiveness of cool roofs, quanti fied by the surface temperature difference between cool and regular roofs ( ΔTs), is known to vary spatially. A common perception is that ΔTsis controlled by solar radiation that reaches the roof surface. Here we use an Earth System Model and a surface energy balance model to show that the spatial variability of ΔTs, when normalized by the albedo difference between cool and regular roofs Δα, is also controlled by an energy distribution factor that encodes the ef ficiencies of surface energy balance components in dissipating heat.
-
Keywords:
-
Source:Geophysical Research Letters, 47(15)
-
DOI:
-
ISSN:0094-8276;1944-8007;
-
Format:
-
Publisher:
-
Document Type:
-
Rights Information:Other
-
Compliance:Library
-
Main Document Checksum:
-
Download URL:
-
File Type:
