Evaluating Recreational Resources of South East Johar using Remotely Sensed Data
3.0 Methodology
3.1 Area of study
The study area covers southern tip of Johor which includes Johor river, straits of Johor and Tebraua, Pelentang, Sungai Tiram, Tebrau, Johor Bharu and Kota Tinggi (Fig, 1)
Figure 1 Study Area
3.2. Data
SPOT1 MSS data, aerial photographs and topographical maps was used in this study. Aerial photographs and maps were obtained from the Department of Surveying and Mapping. The satellite image was processed using Sun 3 Image Processing System.
3.3 Geometric rectification
The sub scene was rectified to match with the map projection. The following relationship was used for this purpose where E is the Easting (Longitude), N is the Northing (Latitude), S is the scan line number and P is the pixel Number of the SPOT scene.
E=E
0 + E
1P + E
2S + E
3P
2
+E
4PS + E
5S
2 (1)
E=N
0 + N
1P+ N
2S +N
3P
2
+ N
4PS + N
5S
2 (2)
The coordinates of ground control points which are well defined an the image were used to determine the values of the coefficient
E
0, E
1,......E
2, N
0, N
1.........N
5 in these equations.
3.3. Image Classifications
The rectified image was classified using the supervised pattern recognition method. These are parallel piped, minimum distance and maximum likelihood. From the classified image of the study area, it was found that four types of natural resources can readily identified related to recreational and tourism. These are estuarine, mangrove, beaches and forest. Air photo interpretation was done for verification purposes.
Most of the beaches in the study are lie along the coast of Straits of johor and part of the Straits Od Tebrau. The largest estuarine is the Johor river estuarine which meets the Straits of johor. There are also pockets of mangrove swamps reserve along the river estuaries, especially along the Johor river. Forest reserves are situated at Tiram river, Seeili Keciland Sedili Besar.
4.0 Approach to land evaluation for recreation
Since all the above mentions factor are not equal importance for tourism,, relative weight was assigned for each of them
The factors used are:
-
Availability of natural; resources
- accessibility
- qualities of the resources
