When the wind blows at the right strength, the new snow, stickier snow starts to roll, picking up other snowflakes as it goes. They form when fresh snow falls on older ice and compacted snow.
Lake Oulujärvi, in the heart of the country, is a great option for weather watchers on the lookout for these icy creations. And with hundreds of lakes which freeze over during the winter, Finland is the perfect place to catch a glimpse of them. These are best enjoyed on one of the national park’s snow trails, with a good pair of snowshoes strapped on to make the going easier.Īlso known as snow doughnuts, snow rollers are formed on large expanses of ice.
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The result is a forest full of weird and wonderful ice sculptures, with no two looking the same. In the depths of winter it can get as low as –40☌. This area of Finland is surprisingly humid, with the wet, dense droplets in the air freezing to the trees when the temperatures begin to slide.
These frozen forests are at their snowy best in Riisitunturi National Park, a remote part of Lapland. And in the darker, colder months, it becomes a magical winter wonderland, not least because its trees turn into spectacular ice sculptures. The boreal forest, which covers much of northern Finland, is one of the richest habitats on the planet. Take a trip, hope for the right mix of weather conditions and you might be lucky enough to catch a glimpse of them yourself.īook your Finnair flights to Oulu Frozen snow trees in Riisitunturi National Park Locals said they’d never come across them before. With the air temperature just below 0☌ and the water close to freezing, wavelets helped shape these eggs from larger pieces of ice sheet, with light winds causing them to rotate and shape into spherical formations before being washed ashore. Who had put them there? And if it wasn’t the work of eager snowball-makers then who, or what, was behind this weird and wonderful phenomenon? The viewing of forest fire phenomena through the medium of various photographic techniques presents an opportunity to consider some of the courses for future fire research.The sight of ice eggs stretching across a remote beach was enough to cause a social media stir in 2019. Many of the characteristics of forest fires have not yet been measured or analyzed in relation to existing theory. Introduction of the atmospheric, topographic, and heterogeneous fuel factors associated with forest fires indicates the complexity of the many variables to be considered in the development of fire scaling theory. Analysis of the behavior of large-scale forest fires and smaller scale experimental fires in forest fuels permits critical examination of combustion theory for free-burning fires.
The films illustrate certain behavior features of wild fires as well as small-scale experimental fires in forest fuels.Įxamination of the natural phenomena of forest fires is related to the International Symposium topic of Fire Models. During parts of the presentation two motion picture projectors and two screens are used simultaneously to facilitate comparisons of fire behavior under various fuel and weather conditions. Both regular speed and time-lapse motion picture photographic techniques are employed. Schaefer during the course of fire research activities. These films have been taken by the staffs of the Southeastern, Pacific Southwest, and Intermountain Forest and Range Experiment Stations of the U.
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Forest fire phenomena are presented through a series of motion pictures and 35 mm slides.
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