Introduction

This page contains links to netCDF instrument transmittance data files used in generating regression transmittance model coefficients. As data becomes available, it will posted here via the appropriate link on the Contents frame at left.

The netCDF datafiles contain the instrument transmittance components ALL, WET, DRY, OZO, EFFECTIVE_DRY, and EFFECTIVE_OZO.

• The ALL transmittances are the total calculated transmittance.
• The WET and OZO component transmittances are those are those calculated using only the water vapor and ozone spectroscopic HITRAN data respectively.
• The DRY component transmittances are those calculated using the spectroscopic HITRAN data for carbon dioxide, nitrous oxide, carbon monoxide, methane, and oxygen only.
• The EFFECTIVE_DRY and EFFECTIVE_OZO transmittances are calculated using,
  
           .................................(1)
  
           .................................(2)
  
  so that the total transmittance obeys the product rule,
  
           .................................(3)