The thermal regime in salt marsh peat at Barnstable, Massachusetts

摘要: The major features of the thermal regime in peat a salt marsh at Barnstable, Massachusetts, are described by theory heat flow homogeneous noncon-vective medium subjected to an annual sinusoidal change temperature having amplitude 12°C surface. diffusivity is 1.57 × 10 −3 cm 2 sec −1 . Departures, attributed meteorological effects, consist long term trend during two-year period observation, which may be approximated biennial component 1°C amplitude, and somewhat irregular perturbations occurring intervals about three months. average effects latter attenuate with depth rate expected for one quarter year period. In deeper layers residuals remain after these components eliminated from observed data accounted movement ground water upland, condition evidenced low chloride content depths. mean increases downward indicates, when combined volumetric capacity, that moving upward through layer 1.58 −6 cal. −2 This value agrees previous determinations geothermal flux. march surface closely epoch air over upland. 0.9° cooler than air, effect evaporation. spring tides flood examined it concluded principal keep moist thus increase DOI: 10.1111/j.2153-3490.1965.tb01416.x