Geo-spatial Analysis of Lesser Himalayan Landscape For Characterizing Resource Utilization Pattern (Nainital Lake Region)
3. Materials and Methods
Data Used
Remote Sensing and G.I.S based approaches have been followed in the present study.
Satellite Data
The following data has been used in the present study
Table 1: Detail of satellite data used in the study
| Data Used | Path/Row | Date of Pass | Bands Width(in mm) | Spatial Resolution (m) | Swath (Km). |
| IRS-1D LISS III | 98/51 | 25-03-2000 | 0.52-0.59
0.62-0.68
0.77-0.86
1.55-0.70 | 23.5 | 141 |
| IRS-1DPAN | 98/51 | 23-09-1999 | 0.5-0.75 | 5.8 | 70 |
Ancillary data
SOI toposheet number 53O/7 and 53O/11, Magnetic compass, Questionnaire, Field Performa
3.1 Methodology
Data preparation
Satellite image were geometrically and radiometrically corrected and LISS III and PAN data sets were merged for better interpretation of resource information.
Preparation of base maps
Base maps, including contour, drainage, road, settlement, village and watershed boundary were obtained form available sources. Data inputting was done through heads-up digitizing in Arc/Info 8.1 Windows NT with UTM projection. The village boundary map was generated from ground survey and was rectified with satellite image and SOI toposheet, using the knowledge-based rules for defining the boundaries. The settlement was marked out from the toposheet and was further rectified using PAN data of the year 1999.
Field investigation
Field data is most important part in this study. Detailed questionnaire (appendix 1) for household studies was prepared considering the related information of resources, like population, cattle population, quality and quantity of resources, the distance to collecting resources and the future planning etc.
Census data collection
Total population, Cattle population, Agriculture land of each village is collected in village record office.
Household interview
Each of the village is visited and random household sample is taken for interview and filling questionnaire. There are 40 questionnaires out of 40 villages achieved one from each village.
Ground truth data collection
Ground truth is collected during the field visit with the help of Satellite Image FCC hardcopy, toposheet, magnetic compass and field Performa.