LOWTRAN Solar Irradiance, Horizontal User Data, and Transmittance models updated

Now available through SolarIrradiance.py is a LOWTRAN model accessed through Python of Solar Irradiance, as well as transmittance ground-space.

Lowtran solar irradiance model
Lowtran solar irradiance model and transmittance.

Also added was the user data mode, where your own measured temperature, presseure, humidity, etc. can be used to compute the transmittance spectrum more accurately.

Lowtran user data input model
Lowtran transmittance using user-provided data for model inputs.
Lowtran user data input model
Lowtran solar up-radiance using user-provided data for model inputs.