UPSC Articles
Monsoon rains in June-September to be 101% of The Long Period Average (LPA)
Part of: GS Prelims and GS-I – Geography
In news
- According to the India Meteorological Department (IMD), monsoon rains in June-September would be 101% of the Long Period Average (LPA) of 88 cm.
- This still constitutes ‘normal’ rainfall, which is from 96-104% of the LPA.
About Long Period Average (LPA)
- It is the average of rainfall received over a 50-year period between 1951 and 2001, which is around 89 cm of rainfall.
- This is kept as a benchmark while forecasting the quantitative rainfall for the monsoon season every year.
Categories of the rainfall
- IMD maintains five rainfall distribution categories on an all-India scale:
- Excess: If the rainfall is more than 110 % of this LPA.
- Above Normal: If the rainfall is between 104 and 110 % of this LPA.
- Normal: If the rainfall is between 96 and 104 % of this LPA.
- Below Normal: If the rainfall is between 90 and 96 % of this LPA.
- Deficient: If the rainfall is less than 90 % of this LPA.
