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research article

A Hybrid Approach for Extracting Large-Scale and Accurate Built-Up Areas Using SAR and Multispectral Data

Azmi, Rida
•
Chenal, Jerome  
•
Amar, Hicham
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February 1, 2023
Atmosphere

This article examines the use of multisensor data fusion for land classification in three Moroccan cities. The method employs a Random Forest classification algorithm based on multispectral, synthetic aperture radar (SAR), and derived land surface temperature (LST) data. The study compares the proposed approach to existing datasets on impervious surfaces (Global Artificial Impervious Area-GAIA, Global Human Settlement Layer-GHSL, and Global 30 m Impervious Surfaces Dynamic Dataset-GIS30D) using traditional evaluation metrics and a common training and validation dataset. The results indicate that the proposed approach has a higher precision (as measured by the F-score) than the existing datasets. The results of this study could be used to improve current databases and establish an urban data hub for impervious surfaces in Africa. The dynamic information of impervious surfaces is useful in urban planning as an indication of the intensity of human activities and economic development.

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Type
research article
DOI
10.3390/atmos14020240
Web of Science ID

WOS:000938213700001

Author(s)
Azmi, Rida
Chenal, Jerome  
Amar, Hicham
Koumetio, Cedric Stephane Tekouabou
Diop, El Bachir
Date Issued

2023-02-01

Publisher

MDPI

Published in
Atmosphere
Volume

14

Issue

2

Start page

240

Subjects

Environmental Sciences

•

Meteorology & Atmospheric Sciences

•

Environmental Sciences & Ecology

•

Meteorology & Atmospheric Sciences

•

built-up areas

•

data fusion

•

lst

•

sar data

•

multispectral

•

impervious surfaces

•

urban heat-island

•

land-cover

•

classification

•

resolution

•

imagery

•

fusion

•

trends

•

forest

•

index

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CEAT  
Available on Infoscience
March 27, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/196477
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