GATS, Inc. • SOSST

SOSST
Solar Occultation Satellite Science Team
Satellite occultation experiments play an important role in enhancing our understanding of complex atmospheric processes. Over the past 25 years, satellite occultation missions have led to major discoveries on ozone depletion, transport processes, the impact of volcanic eruptions and the distribution of polar stratospheric clouds. Perhaps most importantly, these measurements have been key to accurately monitoring long-term atmospheric changes.

Terry Deshler launching an research balloon in Antarctica. Dr. Deshler is collaborating with GATS on a SOSST-funded project to compare SAGE-III and in-situ balloon measurements.

The Solar Occultation Satellite Science Team (SOSST), sponsored by NASA's Earth Science Enterprise, brings together scientists from these missions and others to share information on retrieval algorithms, analysis techniques, and scientific findings. GATS is closely involved in the SOSST program. Larry Gordley is co-leader algorithm working group. Mark Hervig's grant “Investigation of SAGE III Aerosol Measurements: Validation and Size Distribution Retrievals” has been funded by SOSST for three years. The goal of this project is to retrieve stratospheric aerosol size distributions using SAGE III multi-wavelength extinction measurements, and to validate SAGE III aerosol and cirrus measurements using coincident observations from HALOE and balloon-borne optical particle counters (OPCs).

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