Antarctic-Scale Ice Flow Lines Map Generation and Basin Delineation

Ice flow lines are the most dominant feature of ice sheet surfaces. Accurate delineation basins is a prerequisite for mass balance. We therefore propose new weight balance-based approach to extract present comprehensive and then re-delineate Antarctic basin on this basis. In our approach, we define three impact factors represent directional accuracy, smoothness, physical character. Following this, method proposed, in which those integrated via weights, determine pointing pixels (points or subpixels line). After that, continuously tracked. Finally, were re-delineated based it. The results indicate that derived exhibit rational pattern against DEM proposed remarkably improves performance results. Furthermore, compared with IMBIE (Ice Mass Balance Inter-Comparison Exercise) basins, redivided slight diversity, differences area length less than 11% accuracy 1° (covering more 90% area). As result, beneficial investigation in-depth mechanism shelf calving balance Antarctic.