Sensitivity of the oceanic turbulent boundary layer to cyclic insolation change with response periods of 23 to 2.5 Ky: an equatorial Atlantic record for the last 200 KA

Details Sensitivity of the oceanic turbulent boundary layer to cyclic insolation change with response periods of 23 to 2.5 Ky: an equatorial Atlantic record for the last 200 KA Sensitivity of the oceanic turbulent boundary layer to cyclic insolation change with response periods of 23 to 2.5 Ky: an equatorial Atlantic record for the last 200 KA

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3086...90m&link_type=abstract

In NASA, Goddard Space Flight Center, Climate Impact of Solar Variability p 90-97 (SEE N91-12456 03-92)

Computer Science

Climate, Cores, Insolation, Ocean Bottom, Oceans, Sea Surface Temperature, Sediments, Solar Activity Effects, Solar Radiation, Spectrum Analysis, Time Series Analysis, Tropical Regions, Turbulent Boundary Layer, Climatology, Divergence, Precession, Sensitivity, Solar Orbits

Scientific paper

Time series of sea-surface temperature in cores sited beneath the region of maximum divergence centered on 10 degrees W are characterized by two sets of periodic signals. The dominant signal is centered on a period of 23 Ky and is coherent with and lags, approx. 2.5 Ky, the precessional component of orbitally controlled insolation. The subdominant periods occur between 4.0 and 2.5 Ky. Both sets of signals record variation in the seasonal intensity of oceanic divergence modulated by variation in tropical easterly intensity. The longer periods are a response to precessional forcing. The forcing responsible for the shorter periods is unknown.

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