Describe uncertainties related to monsoon
Answers
hey mate the answer is ;
Monsoon wind is known for its uncertainties because
(i) The movement of low-pressure trough controls the spatial distribution of rainfall.
(ii) The alteration of wet and dry spells varies in intensity, frequency and duration.
(iii) It sometime causes heavy floods in one part, it may be responsible for drought in other.
(iv) It is often irregular in its arrival and retreat.
a. Rainfall in India emanate from two main sources: Bay of Bengal branch and Arabian sea branch.
b. Beginning from the month of june monsoon rains occur in intervals. The dry and wet spells of the monsoons vary in strength, frequency and duration causing floods and droughts at the same time in different regions. Advancing monsoon Begins from June till September
c. There is a complete change in weather is experienced after the inflow of the Southwest monsoons into India.
d. The monsoon rains occur in intervals. The dry and wet spells of the monsoons vary in strength, frequency and duration causing floods and droughts at the same time in different regions.
e.The windward side of the Western Ghats receives more than 250 cm of heavy rainfall.
f. The highest average rainfall in the world is received by Mawsynram, lying in the Southern range of the Khasi Hills in Meghalaya.Gujarat and Rajasthan receive scanty rainfall
g. It causes bulk of rainfall from south west monsoon, as these winds blow over warm oceans , they carry abundant moisture with them and causes rainfall in the sub continent.
h. Advancing monsoon is associated with the breaks in monsoon due to temperature variation and pressure gradient.
i. This monsoon is characterised by uncertainties, while it may cause heavy rainfall , floods in one part it may cause drought in another.
j. T Also the distribution of rainfall is uneven in India..Parts of western coast and north eastern India Receive over about 400 cm of rainfall annually.Less than 60 cm in western Rajasthan and adjoining parts of Gujarat, Haryana and Punjab. A third area of low precipitation is around Leh in Jammu and Kashmir.
k. The rest of the country receives moderate rainfall .