Which of the following are correct with regard to Indian Monsoonal Rainfall? 1. Largely governed by the topographical features 2. Regional and seasonal variation in the distribution of rainfall 3. Heavy downpour resulting in considerable runoff 4. Beginning and end of rain is regular and on time
1, 2 and 3
Understanding Indian Monsoonal Rainfall Characteristics
The question asks us to identify the correct statements regarding the characteristics of Indian Monsoonal Rainfall. Let's analyze each statement based on known facts about the monsoon in India.
Statement Analysis of Indian Monsoonal Rainfall
- Statement 1: Largely governed by the topographical features
This statement is correct. The distribution and intensity of Indian Monsoonal Rainfall are heavily influenced by topography. For example, the Western Ghats cause heavy rainfall on the windward side, while the Deccan Plateau lies in a rain shadow region. The Himalayas act as a barrier, forcing the monsoon winds to shed moisture and also preventing them from crossing into Tibet, thus influencing rainfall in the North Indian Plains.
- Statement 2: Regional and seasonal variation in the distribution of rainfall
This statement is correct. Indian Monsoonal Rainfall shows significant variation both geographically and seasonally. Regions like the Western Ghats and Northeastern India receive very heavy rainfall, while parts of Rajasthan and Ladakh receive scanty rainfall. Seasonally, the monsoon months (June to September) receive the bulk of the annual precipitation, with very little rain during the dry season.
- Statement 3: Heavy downpour resulting in considerable runoff
This statement is correct. Monsoon rains are often characterized by intense bursts of rainfall over short periods. Such heavy downpours exceed the infiltration capacity of the soil, leading to significant surface runoff, which contributes to swelling rivers and can cause flooding.
- Statement 4: Beginning and end of rain is regular and on time
This statement is incorrect. While there are average dates for the onset and withdrawal of the Indian Monsoonal Rainfall (e.g., onset over Kerala typically around June 1st), these dates vary significantly from year to year. The monsoon can arrive earlier or later than the average date, and its withdrawal can also be delayed or premature. This variability affects agricultural planning and water management.
Conclusion on Indian Monsoonal Rainfall Statements
Based on the analysis, statements 1, 2, and 3 accurately describe the characteristics of Indian Monsoonal Rainfall. Statement 4 is inaccurate because the monsoon timing is not always regular and predictable.
Therefore, the correct combination of statements is 1, 2, and 3.
Revision Table: Key Aspects of Indian Monsoonal Rainfall
| Characteristic | Description |
|---|---|
| Topography Influence | Mountains like Western Ghats and Himalayas strongly affect rainfall distribution. |
| Variability | Significant differences in rainfall amount across regions and seasons. |
| Intensity & Runoff | Often involves heavy, intense rainfall leading to high runoff. |
| Timing Predictability | Onset and withdrawal dates show significant year-to-year variation. |
Additional Information on Indian Monsoonal Rainfall
The Indian Monsoonal Rainfall is a complex weather system driven by the differential heating of land and sea. The southwest monsoon brings most of the rainfall to India between June and September. This rainfall is crucial for agriculture, which is the backbone of the Indian economy. However, its variable nature in terms of timing and spatial distribution often leads to challenges like floods in some areas and droughts in others within the same season.
Important Questions from Indian Climate
According to Koppen's climatic classifications, the Great Northern Plains of India have which one of the following climates?
According to the Indian Meteorological Department, which of the following is/are the feature/features of cloudburst?
1. Heavy precipitation in short period of time in a limited geographical area
2. It occurs generally during monsoon period and triggers flash flood and landslides
Select the correct answer using the code given below.Match List I with List II and select the correct answer using the code given below the Lists:
List I ( Type of climate )
List II ( State )
A. Monsoon with Short Dry Season (Amw)
1. Uttar Pradesh and Bihar
B. Cold Humid Winter with Short Summer (Dfc)
2. Tamil Nadu Coast
C. Monsoon with Dry Winter (Cwg)
3. Arunachal Pradesh
D. Monsoon with Dry Summer (As)
4. Kerala and Karnataka Coast
In India, maximum amount of rainfall is received from
Which of the following is correctly matched?
