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Evaluation of spatial pattern of urban heat island and its relationship with land cover by HJ-1 remote sensing images - A case study of Shanghai City
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics (closed 20110301).
2010 (English)In: 2010 Dragon 2 Mid Term Results Symposium, 2010Conference paper (Refereed)
Abstract [en]

In the study, multi-spectral data with 30m resolution and hyperspectral images with 100m resolution are used to classify the land cover into six types: water body, public green space, agriculture land, built-up areas and non-use land, clouds, while thermal images with 300m resolution are used to evaluate the urban heat island effect. The field work at Sep 17th, 2009 is used to evaluate the accuracy of classification results. In order to quantify the degree along the rural-urban gradient, Moran's I index and semi-variance are used to assess the spatial autocorrection and describe the scale and pattern of spatial variability. The results show that the land cover map resulted from multi-spectral image has satisfactory accuracy. From the results of Moran' I index and semi-variance, it indicats that spatial pattern of homogeneous patches exist on small scales smaller 36km, meso scales between 36-81km and large scales bigger than 81km. The relationship between land cover types and UHI patterns is also studied.

Place, publisher, year, edition, pages
, European Space Agency, (Special Publication) ESA SP, ISSN 03796566 ; 684
Keyword [en]
Autocorrection, Built-up areas, Classification results, Field works, Green spaces, Hyper-spectral images, Land cover, Land-cover types, Meso scale, Multi-spectral data, Multispectral images, Remote sensing images, Small scale, Spatial patterns, Spatial variability, Thermal images, Urban heat island, Waterbodies
National Category
Remote Sensing
URN: urn:nbn:se:kth:diva-89352ScopusID: 2-s2.0-79851474859ISBN: 978-929221248-3OAI: diva2:502926
2010 Dragon 2 Mid Term Results Symposium; Guilin City; China; 17 May 2010 through 21 May 2010

QC 20120217

Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2014-09-08Bibliographically approved

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Ban, Yifang
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Geoinformatics (closed 20110301)
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