ONLINE INTEGRATED MODELING ON REGIONAL SCALE IN NORTH-WEST RUSSIA:EVALUATION OF AEROSOLS INFLUENCE ON METEOROLOGICAL PARAMETERS

• Published in: GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
• Main Authors: Nerobelov, Georgy, Sedeeva, Margarita, Mahura, Alexander, Nuterman, Roman, Mostamandi, Suleiman, Smyshlyaev, Sergeii
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: North-West Russia
• Online Access: https://curis.ku.dk/portal/da/publications/online-integrated-modeling-on-regional-scale-in-northwest-russia(fb0e458e-7ee0-4b6c-b333-076f02f8f4fd).html; https://doi.org/10.24057/2071-9388-2018-11-2-73-83; https://curis.ku.dk/ws/files/200534669/422_667_2_PB.pdf

In this study the aerosols influence on selected meteorological parameters during two summer 2010 periods is evaluated with focus on the North-West Russia and urban area of St. Petersburg. For that, the seamless fully online-integrated Enviro-HIRLAM model is used. The simulations are realised in short- and long-term modes for selected periods. For evaluation of aerosol influence, in addition to the control/ reference run, the runs with direct, indirect and both combined aerosol effects are performed. It was found that for the North-West Russia region, the direct aerosol effect had increased air temperature (by 1-3˚) and decreased total cloud cover (by 10-20%). The indirect effect decreased temperature (by 0.4-1˚) and increased cloud cover (by 10-20%). The combined effect was the largest territorially; and such effect both decreased temperature and cloud cover (by 1-3˚ and by 6-20%, respectively) as well as increased these (by 0.4-0.6˚ and 1020%).