Comparison of CIPS and SBUV/2 Using a Generalized SBUV-Type Approach

Details Comparison of CIPS and SBUV/2 Using a Generalized SBUV-Type Approach Comparison of CIPS and SBUV/2 Using a Generalized SBUV-Type Approach

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsa31a..01b&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SA31A-01

Physics

0320 Cloud Physics And Chemistry, 0340 Middle Atmosphere: Composition And Chemistry, 0394 Instruments And Techniques, 3332 Mesospheric Dynamics, 3360 Remote Sensing

Scientific paper

We compare measurements from the Aeronomy of Ice in the Mesosphere (AIM) Cloud Imaging and Particle Size experiment (CIPS) to the Solar Backscatter Ultraviolet instrument (SBUV/2) during the 2007 northern hemisphere and 2007/2008 southern hemisphere Polar Mesospheric Cloud (PMC) seasons. Previously we have shown that the nadir viewing portion of the CIPS albedo and PMC frequency of occurrence data are in excellent agreement with NOAA-17 SBUV/2 results. In this paper we expand the SBUV-type algorithm to utilize CIPS pixels at all available scattering angles. The generalized method requires normalization of CIPS data to the Rayleigh phase function to compare with the nadir-viewing SBUV/2. We evaluate the CIPS results by comparing to concurrent SBUV/2 version 3 PMC data from the NOAA-16, -17, and -18 satellites. The comparisons are facilitated by the fact that many SBUV/2 measurements in the polar region are coincident with at least one CIPS measurement because CIPS has such broad spatial coverage. This analysis is used to validate CIPS data and to show that CIPS measurements can be linked to the long time series of SBUV/2 data in order to investigate long-term variability in PMCs.

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