Dams · DRP News Bulletin

DRP NB 20 April 2020: Solutions to Covid 19 & Climate change are same?

This proposition clearly sounds simplistic and seems devoid of science or logic. But the case studies of the epidemics since 1980 and loss of forests, biodiversity and sustainability shows that this is not to be dismissed that easily. In fact the following interview with Dr Aaron Bernstein makes a powerful case to show why this indeed has a lot of science and logic behind it. It also hence makes a case that yesterday (our “normal”), is no longer a good model for better tomorrow.

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Indian Meteorological Department · Monsoon

IMD’s 1st Long Range forecast for SW monsoon 2020

IMD’s 1st Long Range Forecast for SW Monsoon 2020 on Apr 15, 2020[i] says:

– Rainfall will be normal (100% of LPA: Long Period Average of 88 cm). IMD says Neutral El Nino Southern Oscillation prevails in Pacific Ocean and Neutral Indian Ocean Dipole conditions prevail in Indian Ocean, likely to remain throughout the monsoon as per most models, some indicate weak La Nina conditions in Pacific Ocean in second half of monsoon.

– FORECAST BASED ON MONSOON MISSION COUPLED FORECASTING MODEL There is high probability (70%) of monsoon rainfall being above average to excess (over 104% of normal)

– FORECAST BASED ON OPERATIONAL STATISTICAL ENSEMBLE FORECASTING SYSTEM: 9% probability of Deficient monsoon (Over 10% below normal); 20% probability of below normal (90-96% of normal) rainfall; 41% probability of normal monsoon (96-104% of normal rains); 21% probability of above normal (104-110% of LPA rains) and 9% probability of excess (over 110% of normal) rains.

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