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Stratospheric Temperature Time Series 1979 to 2004 Using SSU and AMSU Data from the Operational NOAA Polar Orbiting Satellites A.J. Miller, J. Nash, R. Lin, C. Long, J. Wild, and M.E. Gelman

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John Nash (UKMO) SSU Channels Channel Peak of Weighting Function 47X 0.5 hPa 27 1.5 36X 2.0 266.0 25 15.0 26X 20.0 15X 50.0

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N-14 minus N-11 7/97-12/03 Standard Deviation Channel 25 ~ 0.25C Channel 26 ~ 0.3C Channel 27 ~ 0.5C

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AMSU => SSU via Statistical Regression NOAA-16 AMSU vs NOAA-14 SSU 10/00 – 10/02 14 SSU 25, etc = a 0 + 3 a i x AMSU i i=9

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SSU/AMSU Standard Error of Regression 10/00 – 10/02 47x 27 36x 26 25 26x 15x

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SSU Channel 26 – AMSU Simulated SSU

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SSU Channel 27 – AMSU Simulated SSU

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50 hPa

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20 hPa

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15 hPa

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6 hPa

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2 hPa

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1.5 hPa

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0.5 hPa

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Data Availability The URL for the SSU dataset is ftp://ftpprd.ncep.noaa.gov/pub/cpc/wd53rl/ssu /cohesive/

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Statistical Model Trend 1979-1996 Trend change 1/96 Remove 2 years post Mt. Pinatubo eruption Seasonal cycle f10.7 AO/AAO QBO AR(1)

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