Mouse over acronyms to see brief description. Click to see full description.

---

NPOESS Aircraft Sounder Testbed

The objectives of NAST are to:

• simulate instruments for NPOESS: CrIS, ATMS
• evaluate key Environmental Data Records (EDRs) algorithms
• preview high-resolution products—spectral and spatial
• provide flight validation

Instruments included in the NAST project are:

• NAST-I, IR Interferometer Sounder
• NAST-M, Microwave Sounder

NASA ER-2 aircraft