Average PMC intensity 23 days after solstice for the north pole as measured by the CIPS instrument, 2007. Credit: LASP

Average PMC intensity 23 days after solstice for the south pole as measured by the CIPS instrument, 2007-2008. Credit: LASP

Comparison of CIPS PMCs (left) and SABER T – Tf (right) on June 4, 2007.

CIPS, SOFIE, and SABER Geographic Coverage

CIPS ~ 50km altitude observations of gravity waves in the stratosphere on 27 August 2007 at 72°N. (a) a 1-D line scan through a CIPS image. (b) a wavelet analysis of the data in (a).

An extensive wave event (horizontal wavelength ~250 km) imaged by CIPS in the PMC layer over Greenland.

CIPS daily PMC occurrence frequency in the NH in 2007; for view angles less than 1.5°.

CIPS scene showing a well defined wave event.

CIPS (red) and SBUV (blue) daily average brightness for all PMCs detected in the NH in 2007.

PMCs in the Southern Hemisphere. Credit: LASP

Credit: LASP

Credit: LASP

Credit: LASP