Melting and refreezing processes in the firn of the Devon Ice Cap control meltwater infiltration and runoff across the ice cap. but their full spatial extent and effect on near-surface structure is difficult to measure with surface-based traverses or existing satellite remote sensing. Here. we derive the coherent component of the near-surface return from airborne ice-penetrating radar... https://www.footballmediaservices.com/product-category/oxy-fuel-hardfacing/