Accession Number:

AD1066465

Title:

The Impact of Landscape Characteristics on Urban Surface Energy Balance (Research Area 11.1 STIR)

Descriptive Note:

Technical Report,01 Feb 2016,31 Oct 2016

Corporate Author:

Arizona State University Tempe United States

Personal Author(s):

Report Date:

2017-01-31

Pagination or Media Count:

6.0

Abstract:

Major Goals The following objectives was set as major goals for this project 1 Develop a mathematical model for the coupled heat and water transport, applicable to any urban environmental conditions. Specifically, this model will be used to a quantify the phase and temporal differences between all urban surface energy budgets and the LST, and b characterize the effect of different urban landscape materials concrete, asphalt, soils, etc. and vertical water advection e.g. xeric versus mesic urban vegetation on the urban SEB. 2 Validate the model by comparisons to observational dataset from field measurements. In particular, the PI will obtain a wide range of dataset covering measurements under different weather conditions, geographic locations, and climatic zones, leveraged by his own urban monitoring campaign, sensor network affiliation, and collaborative research. 3 Assess the impact of phase lags and SEB on building energy efficiency. We will apply the numerical model to assess the impact of different landscape planning strategies of urban mitigationadaptation via surface energy transport, especially the improvement of building energy efficiency and enhancement of human thermal comfort. Accomplishments The accomplished goals and major findings, development, and conclusions generated from this project are summarized below We developed a mathematically tractable solution of heat diffusion-advection equation, based on the Greens function method. The method was validated against field measurements and capable of reconstructing the surface energy balance using single-point measurement, and applicable to water surface as well as urban pavements as a reduced case. We characterized the thermal behavior of different urban landscape materials compact and porous concrete, compact and porous asphalt, artificial turf, and landscape gravel and the impact of vertical advection.

Subject Categories:

  • Thermodynamics
  • Construction Equipment, Materials and Supplies
  • Thermodynamics
  • Construction Equipment, Materials and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE