scholarly journals Analysis for Mapping of Built-Up Area Using Remotely Sensed Indices – A Case Study of Rajarhat Block in Barasat Sadar Sub-Division in West Bengal (India)

2018 ◽  
Vol 11 (2) ◽  
pp. 67-76 ◽  
Author(s):  
Debashish Kumar Ghosh ◽  
Anukul Ch Mandal ◽  
Raja Majumder ◽  
Poly Patra ◽  
Gouri Sankar Bhunia
Keyword(s):  
Land Cover ◽  
Urban Growth ◽  
Satellite Data ◽  
Growth Pattern ◽  
West Bengal ◽  
Remotely Sensed ◽  
Decision Makers ◽  
Urban Planner ◽  
Land Cover Dynamics

Abstract Present study investigated mapping and monitoring urban land areas from Landsat8 satellite data using remotely sensed indices. The normalized difference built-up index (NDBI), Enhanced Built-Up and Bareness Index (EBBI), Index-based built-up index (IBI), urban index (UI), normalized difference bareness index (NDBaI) were used to extract the built-up area. The NDBI was more effective at discriminating built-up areas and at increasing accuracy (overall accuracy of 76.45 % and kappa accuracy of 57 %) of the built-up density percentage than other remotely sensed indices. Evidence on built-up area change geographically would permit urban planner and decision makers to comprehend and appraise urban growth pattern in regards to land cover dynamics.

scholarly journals Entrepreneurship and Nineteenth Century Urban Growth: A Case Study of Orillia, Ontario, 1867-1898

2013 ◽  
Vol 9 (1) ◽  
pp. 64-89 ◽  
Author(s):  
E. J. Noble
Keyword(s):  
Urban Growth ◽  
Electric Power System ◽  
Decision Makers ◽  
Growth Strategies ◽  
Local Decision ◽  
Entrepreneurial Decision ◽  
The Town ◽  
Local Decision Makers ◽  
Diverse Pattern

This article examines the role local decision-makers played in the development of Orillia. This small Ontario community exhibited as high a degree of boosterism as that found in much larger centres, and the economic growth of the town was primarily the result of growth strategies pursued by Orillia's entrepreneurial decision-makers. Although this group implemented a variety of successful growth strategies, this study concentrates on two of the most important. First, the businessmen supported a progressive railway policy which brought two competing lines to the community. This action enlarged the town's hinterland and enabled local businessmen to utilize a diverse pattern of buying and selling. Second, the entrepreneurs used the municipal corporation to finance the construction of North America's first municipally owned hydro-electric power system. This development enabled the town to successfully make the transition from a declining commercial centre to a small manufacturing town.

Sign in / Sign up

Export Citation Format

Share Document