Spatial Aggregation of Mobile Transect Measurements for the Identification of Climatic Microenvironments

K. Häb, A. Middel, B. L. Ruddell, H. Hagen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Mobile transect measurements retrieve high-resolution observations revealing the spatial variation of atmospheric properties throughout an urban landscape. A sensor platform is moved through a study site with varying urban form, collecting a data set that can be used to investigate the multifaceted impacts of different building and landscape configurations on atmospheric properties. To generalize such findings, it is imperative to include transect runs representing different points in time and potentially different meteorological background conditions. However, the analysis of a set of mobile transect measurement runs is challenging because of the strict spatio-temporal dependence and multivariate nature of each recorded sample. In this study, we provide visual support for the identification of coherent climatic microenvironments within a study site using mobile transect measurements taken at different points in time and over diverse routes. A regular grid is used to spatially aggregate the data, and resulting summaries are classified according to similar multivariate relationships using clustering techniques. Finally, each grid cell is visualized using a radial glyph encoding cluster membership, predominant wind direction for each transect run, and the number of transect runs traversing this grid cell. The approach has been tested using a data set recorded in Gilbert, Arizona, USA, and it shows potential to identify spatially contiguous regions of similar microclimate.

Original languageEnglish (US)
Title of host publicationEnvirVis 2015 - Workshop on Visualisation in Environmental Sciences
EditorsDieter Fellner
PublisherThe Eurographics Association
Pages19-23
Number of pages5
ISBN (Electronic)9783905674859
DOIs
StatePublished - 2015
Event3rd Workshop on Visualisation in Environmental Sciences, EnvirVis 2015 at EuroVis 2015 - Cagliari, Italy
Duration: May 25 2015May 26 2015

Publication series

NameEnvirVis 2015 - Workshop on Visualisation in Environmental Sciences

Conference

Conference3rd Workshop on Visualisation in Environmental Sciences, EnvirVis 2015 at EuroVis 2015
Country/TerritoryItaly
CityCagliari
Period5/25/155/26/15

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Environmental Science(all)

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