Question
Download Solution PDFWhich of the following is a rain gauge adopted as the standard recording type rain gauge in India? Its details are described in IS: 5253-1969.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
A rain gauge is an instrument used to measure rainfall by collecting all the precipitation which comes down on an area.
The rain gauges can be broadly classified as:
|
Recording Rain gauge |
Non-Recording Rain gauge |
|
1. Natural - syphon type (i) Gives a mass curve of rainfall. (ii) Standard rain gauge adopted in India. 2. Tipping Bucket type (i) Installed in hilly or inaccessible areas. (ii) Gives data on the intensity of rainfall. 3. Weighing Bucket type (i) Gives mass curve of rainfall |
1. Symon's type (i) Most widely adopted in India as a nonrecording type. (ii) Do not record the rain but only collect the rain. (iii) Gives depth of rainfall in cm. |
Important Points
IS: 4987 - 1968 recommends the following density of rain gauges:
| In plain area | 1 station per 520 km2 |
| In the region of avg elevation of 1000 m | 1 station per 260 - 390 km2 |
| In hilly areas with heavy rainfall | 1 station per 130 km2 |
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