Welcome to the Earthdata Forum! Here, the scientific user community and subject matter experts from NASA Distributed Active Archive Centers (DAACs), and other contributors, discuss research needs, data, and data applications.
The TES Team provided the following information for you:
Level 2 is the preferred level of TES product to be used for scientific research. Level 3 is a daily and/or monthly average and it is down-sampled from 67 pressure level to a much smaller amount (based on atmospheric species) around 17 pressure levels.