Terms containing zone on a glacier where melting covers from 10 to 50 of the annual accumulation, but melt water

Subject	English	Russian
Makarov.	zone on a glacier where melting covers from 10 to 50% of the annual accumulation, but melt water freezes in the below layers of firn, not allowing for liquid discharge	зона на леднике, где таяние захватывает от 10 до 50% годовой аккумуляции, но талая вода замерзает в нижележащих слоях фирна, не давая стока