Study Area and Data used
Study Area
Bangalore is geographically located at the south-eastern part of India and capital of Karnataka state is considered as a study area along with a circular buffer of 10 km, (Fig. 1) with spatial extents from 12°49′5″N to 13°8′32″N latitude Fig. 1 Study area and 77°27′29″ E to 77°47′2″E in longitude encompassing an area of 741 km2. Ten km buffer from the administrative boundary was considered (with a gross area of 2290 km2) to account for developments in the peri-urban regions. Population as per the census of Govt. of India has increased by 44% in a decade from 5.8 million in 2001 to 8.5 in 2011 at a rate of 4.4% annually, higher than the national average of 2.5%.
Fig 1: Study Area
Data used
Remotely sensed data for a specific period of Landsat TM were used to analyse Land use changes. This data was supplemented with the toposheets and Bhuvan data to generate base layers including drainage network, road network etc. Training data was collected using the pre calibrated global positioning system (GPS) for classification, and validation of the classified results. Google earth was used as a digitising tool to extract the location of socio economic amenities and road network. This was verified with sampling field visits using Handheld calibrated GPS (Table 1).
| Data |
Year/scale |
Description |
| Landsat thematic mapper (30 m) |
2008, 2010, 2012 |
Land use analysis |
| ASTER (30 m) |
2012 |
Slope map |
| SOI toposheets |
1:250,000 and 1:50,000 |
Delineating administrative boundary and geometric correction |
| Bhuvan and google earth |
|
Support data for site data, delineation of road network |
| GPS |
|
Data classification and validation |
| Census |
1991, 2001, 2011 |
Population census data |
Table 1: Materials used in analysis
Citation :Bharath H. Aithal, Vinay S., Ramachandra T. V., 2018. Simulating urban growth by two state modelling and connected network , Modeling Earth Systems and Environment, https://doi.org/10.1007/s40808-018-0506-1
|
