Size Matters: What are the characteristic source areas for urban planning strategies?

Zhihua Wang, Chao Fan, Soe Myint, Chenghao Wang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Urban environmental measurements and observational statistics should reflect the properties generated over an adjacent area of adequate length where homogeneity is usually assumed. The determination of this characteristic source area that gives sufficient representation of the horizontal coverage of a sensing instrument or the fetch of transported quantities is of critical importance to guide the design and implementation of urban landscape planning strategies. In this study, we aim to unify two different methods for estimating source areas, viz. the statistical correlation method commonly used by geographers for landscape fragmentation and the mechanistic footprint model by meteorologists for atmospheric measurements. Good agreement was found in the intercomparison of the estimate of source areas by the two methods, based on 2-m air temperature measurement collected using a network of weather stations. The results can be extended to shed new lights on urban planning strategies, such as the use of urban vegetation for heat mitigation. In general, a sizable patch of landscape is required in order to play an effective role in regulating the local environment, proportional to the height at which stakeholders' interest is mainly concerned.

Original languageEnglish (US)
Article numbere0165726
JournalPloS one
Issue number11
StatePublished - Nov 2016

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Size Matters: What are the characteristic source areas for urban planning strategies?'. Together they form a unique fingerprint.

Cite this