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Upper Salween/Mekong basins future climate – Rainfall & Temperature

Rainfall: Rainfall projections in summer show an increasing trend over both upper basins, with an increase of about 5–10% over the southern areas where the normal precipitation is low. In the upper part of these basins where the normal precipitation is higher, the projected increase ranges from 10–25%. Rainfall projections in winter also show increasing trends of about 10% over most parts of the basins. However, a small area over the southern part of the central area of the basins shows a decreasing trend by up to 5%. Temperature: Future warming in the summer season is projected over the entire upper Salween and Mekong basins, mostly in the range of 1.5–2.5°C, although it may exceed this in some pockets. RCP 8.5 shows a greater area with warming of between 2–3°C than RCP 4.5. Greater warming is projected in the winter than the summer, although the scenarios differ: RCP 4.5 results in projections of warming between 1.5–3°C, while RCP 8.5 results in projections of warming of 2–3°C or higher.

Year: 2015

From collection: The Himalayan Climate and Water Atlas

Cartographer: Riccardo Pravettoni

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