Cognitive health is focused on a personâs ability to think, learn and remember. The most common cognitive health issue facing the elderly is dementia, the loss of those cognitive functions. Approximately 47.5 million people worldwide have dementiaâa number that is predicted to nearly triple in size by 2050.
The sky view factor is the view factor from the surface to the sky. This is the ratio of the diffuse sky radiation received by the surface to that which would be received by the same surface if it were completely exposed to the sky.
Sky Condition. The sky condition describes the predominant/average sky cover based on percent of the sky covered by opaque (not transparent) clouds. If a high probability of precipitation (60% or greater) is expected, then the sky condition may be omitted since it is inferred from the precipitation forecast.easurable precipitation is equal to or greater than 0.01 inches. Unless specified otherwise, the time period is normally 12 hours. The forecast area, or zone, is generally considered to be a county.