Vertical Distribution of Brine and Volume Structure of Thin Annual Ice in Amursky Bay Based on the Methods of Nuclear Magnetic Resonance and Magnetic Resonance Imaging

Abstract

Spatial distribution of the liquid and solid phases in the pores of first-year sea ice in Amursky Bay was studied using the method of nuclear magnetic resonance and magnetic resonance imaging in the period from 2013 to 2016. We describe the influence of snow cover on the brine content in the pores of sea ice, on the bulk structure of crystalline formations, and on the formation of its individual layers. The difference in vertical profiles of temperature and salinity in the winter and spring periods is shown. The characteristic features of the bulk crystal structure and liquid phase in thin first-year ice are compared with the thick ice of the polar regions. A new empirical relationship is given for the calculation of the entire thickness and separate ice layers as applied to thin young ice.