Rain gauge types, rainfall measurement, rain gauge Agricultural Engineering, notes on rain gauge, rain gauge ppt latest, rainfall duration, rainfall intensity, Runoff estimation, rainfall area, catchment area, watershed

1. Rain gauge
JYOTISH KUMAR BHAGAT
Presentation on
ICAR - INDIAN INSTITUTE OF SOIL ABD WATER
CONSERVATION, RESEARCH CENTRE, SUNBEDA - 763002
, KORAPUT, ODISHA
Presented by

2. Contents
• What is rain gauge ?
• Types of rain gauge
• Site selection

3. What is rain gauge ?
• It is a measuring instrument , which is used by meteorologists
to measure the amount of rainfall by collecting them .
• They are mainly of two types
I. Non - recording type rain gauge
II. Recording type rain gauge

4. Non recording type
• Non recording rain gauge also called standard rain gauge
measures the total rainfall in mm .
• Observations are taken for a particular period , usually 24
hours .
• IMD has recommended that observations are recorded at 8:30
hrs.

5. Recording Type Rain Gauge
• In a recording type rain gauge there is a mechanism by which
the rainfall at any time is recorded on a graph paper .
• There are three types of recording rain gauges which
measures the depth of rainfall with time . These are (i) tipping
bucket , (ii) weighing bucket and (iii) float type .

6. Chart Analysis

7. DATE Rainfall (mm)
9 Aug 2023
10 Aug 2023
11 Aug 2023
12 Aug 2023
13 Aug 2023
14 Aug 2023
15 Aug 2023

8. Selection of site
• The rain gauge is installed in an open space , away from
obstructions like building and trees which will influence the
rainfall.
• The rain gauge should be located on level ground . Uneven
topography affect the amount of rainfall caught by a rain
gauge

9. THANK YOU