Impact of a large artificial lake on regional climate: A typical meteorological year <scp>Meso‐NH</scp> simulation results

Large artificial lakes and reservoirs affect the meteorological regime of shore area local climate takes on a number new features that were previously absent. This work focuses weather impact Alqueva reservoir, largest lake in Western Europe. An extensive set numerical simulations using Meso-NH mesoscale atmospheric model coupled with FLake (Freshwater Lake) scheme was carried out. The covered 12-month period chosen to compose so-called Typical Meteorological Year. time is meant represent typical conditions region results are used assess changes climate. To evaluate raw two different scenarios compared: (A) reservoir as it exists nowadays (B) without older surface dataset. show decrease air temperature during daytime (10–9°C) nighttime increase (up 10°C). In nearest towns, daily maximum decreased minimum increased, which refers milder conditions. mainly showed suppression fog formation nearby area. Local breeze studied monthly lake/land breezes described.