Gulf Stream and Shelf/Slope Fronts
Monthly mean positions of the Gulf Stream "north wall" and Shelf/Slope Water boundary between 50W and 75W have been derived from weekly frontal maps based on satellite imagery. Note that starting in 1996, the product stopped analysis at 50ºW to 54º W. The data at 55ºW is questionable since it falls at the edge of the chart. There is also a data gap from October 1995 to April 1996, the product was discontinued during this period. The source of the data is NOAA (1980-1995), Jennifer Clark (1996 = April 2005) and Naval Oceanographic Office (U.S.) (since May 2005), with images from John Hopkins University's Applied Physics Lab Ocean Remote Sensing "Stormwatch" program as interpretation guide.
Seasonal Cycle of Surface Temperature Anomalies Positions
Mean Position of Surface Temperature Anomalies
The time series for anomalies can be viewed by clicking on the longitudinal segment or selecting from the list below.
Position Anomalies of Surface Temperature Anomalies
Position anomalies were calculated by removing the seasonal cycle pictured above. Position anomaly time series may be viewed by clicking on the longitude segments on the map above, or in the table below.
Filtered Position of Surface Temperature Anomalies
A low pass filter (1/2 power at 15 months) has been applied to remove annual cycles from the monthly data.
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