Why is the content of this map important?
The Ganges and Bramaputhra rivers form both the wealth and major threat of the country. Any changes in their discharge could greatly impact many sectors and parts of society.
Which sectors are affected by this result?
Precipitation increases will concern directly the hydrology sector, and indirectly the agriculture and health sectors.
What is shown on the maps?
An initial precipitation increase maximum (of 100 mm per year) is found along the southern foot of the Himalayas until the western part of the Ganges delta. A second maximum is centered in Assam. It covers a smaller area, but is more intense (250 mm per year) and the models are in better agreement on the results in this area. In the present climate, annual precipitation over the domain ranges from 500 mm (Tibet) to 2500 mm (Bangladesh).
Details and further information:
The table below shows that during the monsoon peak (July-August) rainfall increases by almost 20%
| J | F | M | A | M | J | J | A | S | O | N | D | |
| 1971-2000 | 15 | 23 | 27 | 41 | 80 | 180 | 268 | 237 | 169 | 60 | 15 | 9 |
| +2°C | 17 | 25 | 29 | 43 | 85 | 200 | 311 | 281 | 193 | 66 | 13 | 11 |
Michel Déqué
Meteo France (MeteoF), France