Tracer Measurements in Growing Sea Ice Support Convective Gravity Drainage Parameterizations

Parameterizations for convective transport

Introduction Conclusions References

Brine fluxes from growing sea ice

[1] It is well known that brine drainage from growing sea ice has a controlling influence on its mechanical, electromagnetic, biological and transport properties, and hence upon the buoyancy forcing and ecology in the polar oceans. When the ice has exceeded a critical thickness the drainage process is dominated by brine channels: liquid conduits extending through the ice. We describe a theoreti...

Organic Matter Controls of Iron Incorporation in Growing Sea Ice

This study presents the first laboratory-controlled sea-ice growth experiment conducted under trace metal clean conditions. The role played by organic matter in the incorporation of iron (Fe) into sea ice was investigated by means of laboratory ice-growth experiments using a titanium cold-finger apparatus. Experiments were also conducted to understand the role of extracellular polymeric substan...

Quantifying the limits of convective parameterizations

[1] Quasi‐equilibrium (QE) closure is an approximation that is expected to apply to a large ensemble of clouds under slowly changing weather conditions. It breaks down under rapidly changing conditions or when the domain size is too small to provide an adequate sample of the cloud field. We explore fluctuations about an equilibrium state as simulated by a three‐dimensional cloud‐resolving model...

Porosity of growing sea ice and potential for oil entrainment