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Which is the type of non-recording type rain guage?
tipping bucket type rain guage
float type rain guage
standard rain guage
none of these
standard rain guage
A non-recording rain gauge is an instrument used to collect precipitation over a specific period without providing a continuous temporal record of intensity. The Standard Rain Gauge (Symons' gauge) is the most common example, requiring manual observation at set intervals.
A non-recording rain gauge is an instrument used to collect precipitation over a specific period without providing a continuous temporal record of intensity. The Standard Rain Gauge (Symons' gauge) is the most common example, requiring manual observation at set intervals.
d=AVтАЛ тАФ Where d is depth of rainfall, V is volume of water, and A is the cross-sectional area of the collector.
The principle relies on a cylindrical collection vessel with a funnel and receiver bottle. Rainwater is collected over a known area (catchment area), and the volume is measured manually using a graduated cylinder to determine the depth of rainfall at that location.
Non-recording gauges provide total rainfall depth for a specific period but not the intensity variations.
The standard size for the aperture in India as per IMD is 127 mm diameter.
Manual observation is mandatory at 8:30 AM (IST) daily for standard gauges.
Recording gauges provide a graphical record of intensity vs. time (Hyetograph).
High simplicity in construction and operation.
Low maintenance and cost-effective for large networks.
Less prone to mechanical failure.
Does not provide the distribution of rainfall over time.
Requires manual intervention, prone to human error during reading.
Cannot determine peak rainfall intensity.
Meteorological data collection in remote areas.
Hydrological studies requiring long-term daily total precipitation.
General climate monitoring.
| Feature | Non-Recording | Recording |
|---|---|---|
Record Type | Manual/Cumulative | Temporal/Continuous |
Option A (Tipping bucket) is an automatic recording gauge.
Option B (Float type) is a recording gauge often used in natural siphoning mechanisms.
C is correct тАФ The standard rain gauge is a non-recording type gauge because it simply collects water for manual measurement and does not record the time distribution of rainfall.
Always remember that 'Recording' refers to automated tracking (e.g., Float, Tipping Bucket, Weighing Bucket), while 'Non-recording' signifies manual total-depth gauges like Symons' rain gauge.