thawing

the process whereby heat changes something from a solid to a liquid; "the power failure caused a refrigerator melt that was a disaster"; "the thawing of a frozen turkey takes several hours"

ग्रीष्मकाल में , ऊपरी मिट्टी ( जिसे सक्रिय परत कहा जाता है ) में शायद हिमद्रवण हो ।

In the summer , thawing may occur in the surface soil ( called the active layer ) .