30 Questions
What is the primary form of precipitation responsible for stream flow in a majority of rivers in India?
Rainfall
What is the term used to describe the study of precipitation?
Hydrometeorology
What is the minimum requirement for precipitation to form?
Moisture in the atmosphere, nuclei, weather conditions, and condensation
What is the typical size of water droplets formed through condensation?
Less than 0.1 mm in diameter
What is the main reason for hydrological problems such as floods and droughts?
Variation in precipitation magnitude
What are the two forms of precipitation that contribute significant amounts of water?
Rainfall and snowfall
What is the characteristic wind circulation pattern in the northern hemisphere associated with a frontal system?
Counter-clockwise
What is the typical diameter of a tropical cyclone?
100-200 km
How do the magnitude of precipitation and wind velocities of a frontal system compare to those of a tropical cyclone?
They are lower
What is the direction of the winds in the northern hemisphere during a tropical cyclone?
Anti-clockwise
What is a characteristic of a tropical storm (TS)?
Wind speed of 62 to 88 kph
What happens to the wind speed of a tropical cyclone as it moves inland?
It decreases
What is the characteristic wind circulation pattern in the northern hemisphere associated with an anticyclone?
Clockwise
What is the name of the centre of a tropical cyclone?
The eye
What is the average density of fresh snow in g/cm3?
0.1
What is the classification of a tropical cyclone with maximum sustained winds of up to 61 kilometers per hour?
TROPICAL DEPRESSION
What type of precipitation is typical of the tropics?
Convectional precipitation
What is the characteristic of drizzle in terms of water droplet size and intensity?
Small droplets, low intensity
What is the result of the heating of air at the interface with the ground in the tropics?
Air expansion and weight reduction
What forms when rain or drizzle comes in contact with cold ground at around 0°C?
Glaze
Where are cyclones formed in the case of EXTRATROPICAL CYCLONE?
Outside the tropical zone
What is the characteristic of hail in terms of size and formation?
Large, irregular pellets or lumps
What is the characteristic of rain in terms of droplet size and duration?
Large droplets, continuous or steady precipitation
What is the characteristic of sleet in terms of formation and appearance?
Forms in cold air, appears transparent
What occurs as a result of dynamic cooling?
Condensation and precipitation
What is the primary factor influencing orographic precipitation?
Land elevation
What is the purpose of rainmaking?
To remove or lessen farmland drought
What creates the pressure differences leading to cyclonic precipitation?
Unequal heating of the earth's surface
What type of front occurs when cold air displaces warm air?
Cold front
What is the goal of seeding clouds with catalysts?
To make clouds rain or increase precipitation
Learn about the different forms of precipitation, including rainfall, snowfall, hail, frost, and dew. Understand how precipitation is formed and its impact on stream flow and flood flow in rivers.
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