Urban heat island of Novo mesto, winter 2019/2020

Mestni toplotni otok je pojav, kjer se zaradi gostote poselitve, načina poselitve ter ostalih, predvsem s človekom povezanih dejavnikov, mestno okolje bolj segreje od okoliškega ruralnega okolja. Najbolj izrazit je ob radiacijskem (anticiklonalnem) vremenu predvsem v večjih mestih, njegov vpliv pa je možno zaznati tudi v središčih manjših vasi, kjer so hiše zelo skupaj. V Sloveniji je bilo na temo mestnega toplotnega otoka narejenih že kar nekaj raziskav, najbolj podrobne v dveh največjih slovenskih mestih. Na območju Novega mesta, enega večjih mest v Sloveniji, značilnosti mestnega toplotnega otoka še niso bile raziskane. Opravil sem dve vrsti meritev in sicer meritve temperature zraka v različnih delih mesta s stacionarnimi termometri in maršrutne meritve. Pojav mestnega toplotnega otoka v Novem mestu je prisoten, predvsem v jutranjih in večernih urah, ob anticiklonalnem vremenu. V obdobju med decembrom in marcem je povprečna razlika med centrom mesta in obrobjem znašala okrog 1°C. Novo mesto se zaradi svoje majhnosti, specifične strukture poselitve in veliko zelenih površin zaenkrat še ne sooča z občutnimi negativnimi vplivi mestnega toplotnega otoka.Urban heat island is a phenomenon, when the urban environment heats more than the surrounding rural environment, due to the population density, manner of settlement and other human factors. It is the most prominent at anticyclone weather, predominantly in bigger cities and its impact can also be perceived in centres of small villages, where houses stand closely next to each other. Several researches on the topic of urban heat island have already been conducted in Slovenia, most detailed were the ones in the two largest Slovenian cities. In the area of Novo mesto, one of the bigger towns in Slovenia, the characteristics of urban heat island have not been researched yet. I have carried out two types of measurementsthe measurements of the air temperature in different parts of the town with stationary thermometers and route measurements. The phenomenon of urban heat island is present in Novo mesto, mainly in the morning and evening hours, at anticyclone weather. In the period between December and March, the average difference between the town centre and the outskirts was around 1°C. Because of its small size, specific population structure and many green areas, Novo mesto is not yet coping with significant negative impacts of urban heat island