Title: Update on the Compact Adaptable Microwave Limb Sounder (CAMLS)
Presenting Author: Nathaniel Livesey
Organization: Jet Propulsion Laboratory
Co-Author(s):
Nathaniel Livesey, Jacob Kooi, Goutam Chattopadhyay, Robert Jarnot, Jonathon Kocz, Robert Stachnik, Theodore Reck

Abstract:
The goal of the Compact Adaptable Microwave Limb Sounder (CAMLS) Instrument Incubator Program (IIP) project is to develop an engineering model integrating the key enabling system and subsystem technologies for a next-generation Microwave Limb Sounder instrument for atmospheric composition. CAMLS builds on earlier IIP, ACT, SBIR, and JPL internal efforts, with heritage from the Microwave Limb Sounder (MLS) instruments on NASA's UARS and Aura missions. We are developing the core receiver/spectrometer system for a 340-GHz instrument making unique and essential observations of composition, humidity, temperature and clouds in Earth's upper troposphere (UT, the atmospheric region from ~10-15km) and stratosphere (from the UT to ~50km). The end product will be a compact, low-mass, low-power, low-cost mature instrument that can be implemented confidently within the budgetary and schedule constraints of the Earth Venture program. Additionally, with appropriate cooling, it could serve as the basis of a Decadal Survey class mission providing cross-track scanning for detailed transport and trace gas studies. We will present a broad overview of the microwave limb sounding technique, the atmospheric science issues the measurements target. We will review progress on the CAMLS project to date, and discuss plans for the coming years and routes to integrate CAMLS technology into future atmospheric science instruments.