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In seasonally snow-covered zones, winter albedos of treeless areas are 10% to 50% higher than nearby forested areas because snow does not cover the trees as readily. Deciduous trees have an albedo value of about 0.15 to 0.18 whereas coniferous trees have a value of about 0.09 to 0.15. [9]
Visibility. In meteorology, visibility is the measure of the distance at which an object or light can be clearly discerned. It depends on the transparency of the surrounding air and as such, it is unchanging no matter the ambient light level or time of day.
The R-value (in K ⋅ m 2/ W) is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [ 2 ] flow of heat, in the context of construction. [ 3 ] R-value is the temperature difference per unit of heat flux needed to sustain one unit of heat flux between the ...
The normalized difference vegetation index (NDVI) is a widely-used metric for quantifying the health and density of vegetation using sensor data. It is calculated from spectrometric data at two specific bands: red and near-infrared. The spectrometric data is usually sourced from remote sensors, such as satellites.
The Snow Day Calculator takes into account whether a school is private or public when making its predictions. In general, around 5 to 6 inches of snow is the national sweet spot.
The Snow Day Calculator asks users to input their location, how many snow days they've had this school year and what type of school they attend. Snow Day Calculator predicts if schools will close ...
In geochemistry, paleoclimatology and paleoceanography δ 18 O or delta-O-18 is a measure of the deviation in ratio of stable isotopes oxygen-18 (18 O) and oxygen-16 (16 O). It is commonly used as a measure of the temperature of precipitation, as a measure of groundwater/mineral interactions, and as an indicator of processes that show isotopic fractionation, like methanogenesis.
According to the five-day forecast, the snow level will be at 7,000 feet. On Thursday, highs will reach 42 degrees Fahrenheit and “little or no snow accumulation is expected,” according to the ...