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प्रश्न
Give a geographical reason for each of the following:
Kerala has the longest rainy season.
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उत्तर
Kerala lies in the coastal region surrounded by water bodies like the Arabian Sea. Kerala also lies in the tropical region and thus receives convectional rainfall. When the monsoon winds blow over the Arabian Sea, they pick up moisture and strike the Western Ghats. Kerela is also prone to storm surges and torrential downpour as a result of cyclones. This results in frequent rainfall and a long rainy season in Kerala.
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संबंधित प्रश्न
Name the following:
The winds that bring heavy rain to Cherrapunji.
Give geographical reasons for each of the following:
Kochi is warmer than Mumbai even though both lie on the western coast of India.
Give geographical reasons for each of the following:
The Ganga Plains gets the monsoon rain much later than the west coast of India.
| Stations | Latitude | Altitude (Metres) | Jan. | Feb. | Mar. | Apr. | May. | Jun. | July. | Aug. | Sep. | Oct. | Nov. | Dec. | Annual Rainfall |
|
Temperature (°C) |
20.5 |
22.7 |
25.2 |
27.1 |
26.7 |
24.2 |
23.0 |
23.0 |
23.1 |
22.9 |
18.9 |
20.2 |
|||
| Bengaluru | 12°58'N | 909 |
|
|
|
||||||||||
| Rainfall (cm) | 0.7 | 0.9 | 1.1 | 4.5 | 10.7 | 7.1 | 11.1 | 13.7 | 16.4 |
15.3 |
6.1 |
1.3 |
88.9 | ||
|
Temperature (°C) |
24.4 |
24.4 |
26.7 |
28.3 |
30.0 |
28.9 |
27.2 |
27.2 |
27.2 |
27.8 |
27.2 |
25.0 |
|||
|
Mumbai |
19° N | 11 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
0.2 |
0.2 |
– |
– |
1.8 |
50.6 |
61.0 |
36.9 |
26.9 |
4.8 |
1.0 |
– |
183.4 | ||
|
Temperature (°C) |
19.6 |
22.0 |
27.1 |
30.1 |
30.4 |
29.9 |
28.9 |
28.7 |
28.9 |
27.6 |
23.4 |
19.7 |
|||
|
Kolkata |
22°34'N | 6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
1.2 |
2.8 |
3.4 |
5.1 |
13.4 |
29.0 |
33.1 |
33.4 |
25.3 |
12.7 |
2.7 |
0.4 |
162.5 | ||
|
Temperature (°C) |
14.4 |
16.7 |
23.3 |
30.0 |
33.3 |
33.3 |
30.0 |
29.4 |
28.9 |
25.6 |
19.4 |
15.6 |
|||
|
Delhi |
29° N | 219 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
2.5 |
1.5 |
1.3 |
1.0 |
1.8 |
7.4 |
19.3 |
17.8 |
11.9 |
1.3 |
0.2 |
1.0 |
67.0 | ||
|
Temperature (°C) |
16.8 |
19.2 |
26.6 |
29.8 |
33.3 |
33.9 |
31.3 |
29.0 |
20.1 |
27.0 |
20.1 |
14.9 |
|||
|
Jodhpur |
26°18'N | 224 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
0.5 |
0.6 |
0.3 |
0.3 |
1.0 |
3.1 |
10.8 |
13.1 |
5.7 |
5.7 |
0.2 |
0.2 |
36.6 | ||
|
Temperature (°C) |
24.5 |
25.7 |
27.7 |
30.4 |
33.0 |
32..5 |
31.0 |
30.2 |
29.8 |
28.0 |
25.9 |
24.9 |
|||
|
Chennai |
13°4'N | 7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
4.6 |
1.3 |
1.3 |
1.8 |
3.8 |
22.2 |
8.7 |
11.3 |
11.9 |
30.6 |
35.0 |
0.2 |
128.6 | ||
|
Temperature (°C) |
21.5 |
23.9 |
28.3 |
32.7 |
35.5 |
32.0 |
27.7 |
27.3 |
27.9 |
26.7 |
23.1 |
20.7 |
|||
|
Nagpur |
21°9'N | 312 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
1.1 |
2.3 |
1.7 |
1.6 |
2.1 |
22.2 |
37.6 |
28.6 |
18.5 |
5.5 |
2.0 |
13.9 |
124.2 | ||
|
Temperature (°C) |
9.8 |
11.3 |
15.9 |
18.5 |
19.2 |
20.5 |
21.1 |
20.9 |
20.9 |
17.2 |
13.3 |
10.4 |
|||
|
Shillong |
24°34'N | 1461 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
1.4 |
2.9 |
5.6 |
14.6 |
29.5 |
47.6 |
35.9 |
34.3 |
30.2 |
18.8 |
3.8 |
1.0 |
225.3 | ||
|
Temperature (°C) |
26.7 |
27.3 |
28.3 |
28.7 |
28.6 |
26.6 |
26.2 |
26.2 |
26.5 |
26.7 |
26.6 |
26.5 |
|||
|
Thiruvananthapuram |
8°29'N | 61 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
2.3 |
2.1 |
3.7 |
10.6 |
20.8 |
35.6 |
22.3 |
14.6 |
13.8 |
27.3 |
20.6 |
7.5 |
181.2 | ||
|
Temperature (°C) |
−8.5 |
−7.2 |
−0.6 |
6.1 |
10.0 |
14.4 |
17.2 |
16.1 |
12.2 |
6.1 |
0.0 |
−5.6 |
|||
|
Leh |
34°N | 3506 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rainfall (cm) |
1.0 |
0.8 |
0.8 |
0.5 |
0.5 |
0.5 |
1.3 |
1.3 |
0.8 |
0.5 |
– |
0.5 |
8.5 |
In above Table the average mean monthly temperatures and amounts of rainfall of ten representative stations have been given. It is for you to study on your own and convert them into ‘temperature and rainfall’ graphs. A glance at these visual representations will help you to grasp instantly the similarities and differences between them. One such graph (Figure 1) is already prepared for you. See if you can arrive at some broad generalisations about our diverse climatic conditions. 
When the Malabar coast is receiving heavy rainfall in July, the Tamil Nadu coast is comparatively dry.
Central Maharashtra receives little rainfall.
Though Mangalore and Mysore are on the same latitude, Mangalore experiences more rainfall than Mysore. Give reasons.
Name the winds which are responsible for heavy rainfall in India.
In India, 85% of the rain is received from the ______.
The average rainfall of India is about:
