General Information About The: Cotton Soaring Index (CSI)
Surface temperatures are forcast at gridpoints using solar radiation at surface, infrared
radiation from the surface, sensible and latent heat fluxes into the air, and heat diffusion
into soil. CSI is calculated using forecast surface temperatures, and a difference between forecast air
temperature 1600 m above ground level, and temperature of adiabatically lifted parcel to that
level. Look for negative values of CSI. The more negative the better for good
thermals. CAUTION - CSI does not tell you if clouds will over develop.
You must look at rainfall predictions for that.
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