Brief Notes on AIRS May 9, 2007 Group Meeting

Atmospheric InfraRed Sounders (AIRS) 650 – 2670 cm – 2670 cm channels 2378 channels Objectives: Objectives: improve weather forecasting improve weather forecasting establish the connection between severe weather and climate change establish the connection between severe weather and climate change determine if the global water cycle is accelerating determine if the global water cycle is accelerating detect the effects of greenhouse gases detect the effects of greenhouse gases

Reference Stephens, GL. "Cloud feedbacks in the climate system: A critical review." Journal of climate, 18(2), 2005:

Huang et al, JGR, 110, D12102, 2005 Upper Tropospheric Middle Stratospheric

2005 July Global Average

Principal Component Analysis (PCA) Spectral PCA: Replace time t by frequency

EOF Analysis – 2005 July

EOF Analysis – 2005 July (Cloud-Cleared)

EOF Analysis – 2005 January

EOF Analysis – 2005 January (Cloud-Cleared)