USE OF REMOTE SENSING TECHNOLOGY FOR LOCATING STRUCTURES FOR WATER

RESOURCES MANAGEMENT

By Er. Prem Ranjan

M. Tech (Soil & Water Engineering)College of Agricultural Engineering & Post

Harvest Technology, Ranipool, Sikkim

One of the district of Sikkim Area having 750 Km2

Survey shows several water scarcity problem

During surveys it shows that people are paying as high as Rs 2,400 /- per month for 2,000 lit of water

South Sikkim

To locate structures Ideal location should be identified

where water is available Construction of structures can

provide sustainable near area

Criteria for water resource management

Steep slope Less soil depth Presence of high sand content Under laid by metamorphic rocks

Reason for shortage of water

Used DEM Map of 10 m Flow direction Flow accumulation Stream delineate Ordering stream no

To over come such situation we try to locate Perennial and Ephemeral stream in south district

Fig. 1. DEM map of south Sikkim Fig. 2. Perennial stream 1st order

Fig. 3. Perennial stream 2nd order Fig. 4. Ephemeral stream 1st order

Fig. 4. Ephemeral stream 2nd order

Observe this stream with different

map in Google platform for different time periods

odd season where water is available we have considered it as a perennial stream.

To check whether the shown river is

flowing or not.(Drain) To check cross section of this image

with that location To get contact with people located on

those place to know that whether the flow is taking place for 12 month or not

Future Verification