Agro-meteorology 2

Question 1

A process where precipitation is encouraged by injecting artificial condensation nuclei through aircrafts or other suitable mechanisms to induce rain from rain bearing clouds

Answer 1

Seeding of Cloud

Question 2

Types of Cloud Seeding?

Answer 2

Dry Seeding - silver iodide method
Warm Seeding - Common Salt and Water Drop Technique

Question 3

Minute crystals of a chemical produced in the form of smoke act as efficient ice-forming nuclei at temperatures below -5 degrees to induce rain

Answer 3

Dry Seeding of Silver iodide

Question 4

What is long period average?

Answer 4

Average rainfall between 1971-2020
87cm

Question 5

What is considered normal rainfall wrt LPA?

Answer 5

90%-110% of LPA

Question 6

What is considered excess rainfall wrt LPA?

Answer 6

More than 110% of LPA

Question 7

When can we say that rainfall is deficient?

Answer 7

Less than 90% of LPA

Question 8

An event is considered a cloud burst when a station receives ___cm of rainfall in ___

Answer 8

10cm in 1 hour

Question 9

Locust Warning Organisation (LWO) India

Answer 9

Faridabad

Question 10

Instrument that measures wind speed/velocity?

Answer 10

Anemometer

Question 11

Instrument that measures:
a> Sunshine duration
b> Relative Humidity
c> Relative Density of liquid

Answer 11

a> Cambel Stokes Recorder
b> Hygrometer/Psychrometer
c> Hydrometer

Question 12

The temp at which a body of air must be cooled to become saturated with water vapour

Answer 12

Dew Point

Question 13

Stratophere extends to an altitude of about ____km

Answer 13

50-55 km

Question 14

Stratophere is also known as?

Answer 14

Ozonosphere

Question 15

Temp in stratosphere ____ with increase in altitude

Answer 15

decrease

Question 16

____ are dark clouds as they carry a substantial quantity of water droplets. They come in union with other cloud forms that bring substantial precipitation.

Answer 16

Nimbus

Question 17

Coldest region of the atmosphere is?

Answer 17

Mesophere

-95C at 80km

Question 18

IMD is located in? It is under which ministry?

Answer 18

Delhi
Ministry of Earth Sciences

Question 19

____% solar radiation reaches the earth’s surface after reflection, scattering and adsorption

Answer 19

50%

Question 20

Which part of stratosphere contains max ozone?

Answer 20

Upper Stratosphere

Question 21

Where was 1st recorded instance of cloud seeding in India?

Answer 21

Maharashtra

Occurred in 2003, in project called ‘Megha Sandesh’