We used field observations of frost-boil distribution, soils, and vegetation to attempt to validate the predictions of a Differential Frost Heave (DFH) model along the temperature gradient in northern Alaska. The model successfully predicts order of magnitude heave and spacing of frost boils, and can account for the circular motion of soils within frost boils. Modification of the model is neede...

Frost formation on an evaporator causes significant problems by decreasing inlet air flow. It is important for a precise prediction to understand the dominant factor of the frost formation. In this paper, the frost layer on the cold plate is experimentally obtained with different velocities while maintaining a surface temperature at -20 degrees Celsius. The mass and height of the frost layer is...

Abstract The study documents a process of ice lenses persistence under hummocks during spring snowmelt in rich fen Poland. Air temperature, as well the temperature vascular plant litter, Hamatocaulis vernicosus mat, Tomentypnum nitens and Sphagnum teres hummocks, was measured from December to March using data loggers. Capital Asset Pricing Model adapted analyse relationships between air litter ...

Abstract Background Spring frosts pose an important threat to orchard productivity in temperate zones and projections do not exclude damaging events the future. However, there is no up-to-date systematic comparison of effectiveness conditionality existing passive active damage prevention strategies. This review seeks answer questions “How performances spring frost reduction strategies fruit orc...

Freezing stress is one of the most important limiting factors determining the ecological distribution and production of tree species. Assessment of frost risk is, therefore, critical for forestry, fruit production, and horticulture. Frost risk is substantial when hazard (i.e., exposure to damaging freezing temperatures) intersects with vulnerability (i.e., frost sensitivity). Based on a large n...

Within-species and among-species differences in growth responses to a changing climate have been well documented, yet the relative magnitude of within-species vs. among-species variation has remained largely unexplored. This missing comparison impedes our ability to make general predictions of biodiversity change and to project future species distributions using models. We present a direct comp...

Background Understanding the abundance of adverse environmental conditions e.g. frost, drought, and heat during critical crop growth stages, which are assumed to be altered by climate change, is crucial for an accurate risk assessment for cropping systems. While a lengthening of the vegetation period may be beneficial, higher frequencies of heat or frost events and drought spells are generally ...