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SST trends in our study region.

SST trends in our study region. #NOTE Jon Hare provided hydrographic data data from MARMAP program, 1977-2008, including SST and BtmTemp. #BIO had agreement with NOAA to exchange data from 35N. Therrefore I extracted data and processed in #the same way as Cdn regions to get longer time series.

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SST trends in our study region.

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  1. SST trends in our study region.

  2. #NOTE Jon Hare provided hydrographic data data from MARMAP program, 1977-2008, including SST and BtmTemp. #BIO had agreement with NOAA to exchange data from 35N. Therrefore I extracted data and processed in #the same way as Cdn regions to get longer time series

  3. Calc of SST use diff databases, ERSST, and MEDS SST, or from RV ships • Processing of SST is also different • Accounting for monthly missing values • Relative base period to account for anomaly 30 yrs 70-2000

  4. Friedland

  5. commentNS: I used data from 1960, use base ref to calc anoms from 70-08

  6. From Loder report. • North Atlantic SSTs had a 65-75 year variation with a 0.42C range. There was a warm phase from 1930-1960 and cool phases from 1905-1925 and 1970-1990. This variability is called the Atlantic Multi-decadal Oscillation (AMO). Beginning in the 1990s, it looks as if the AMO had returned to a warm phase. Tropical Atlantic SSTs were at record high levels in 2005. Average SST anomalies for 2 periods (1985-1994 and 1995-2003) showed increases in the ranges of 0.23oC-0.41oC in the tropics and 0.42oC-0.55oC in mid-latitudes (Marsh et al, 2008). During negative AMO, North Atlantic SSTs are strongly correlated with NAO but the correlation is weak during positive AMO phases. (Trenberth et al, 2007)

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