Open AccessSeasonal variability of ice temperature upon the results of measuring at “North Pole-38” drifting station
Author(s) -
Victor V. Kharitonov
Publication year - 2017
Publication title -
problemy arktiki i antarktiki
Language(s) - English
Resource type - Journals
eISSN - 2618-6713
pISSN - 0555-2648
DOI - 10.30758/0555-2648-2017-0-4-66-75
Subject(s) - sea ice thickness , sea ice , climatology , antarctic sea ice , arctic ice pack , sea ice growth processes , cryosphere , drift ice , temperature gradient , snow , environmental science , ice albedo feedback , atmospheric sciences , geology , meteorology , geography , geomorphology
Vertical profiles of ice temperature were measured in November 2010 – September 2011 at “North Pole-38” drifting station. These observations were made at five locations, including young ice, residual first-year ice, second-year ice, multi-year ice. Methods of measurements are considered. Time-temperature profiles for all types of ice as well as time profile for the gradient of temperature of ice, as an example, are shown. A snow cover gives substantial thermal resistance, reducing a heat flux between atmosphere and ocean. The periods of warming-up and cooling of ice in the annual cycle alternate with periods, when vertical distribution of ice temperature close to linear: with a maximal gradient in winter and zero gradient in summer. A general pattern of the seasonal evolution of ice temperature is discussed. A cold front is propagating down through the ice from October to June. Ice growth lasts, on the average, to a middle of May. Warming of ice to the freezing point occurs mainly in August.