Download or read book Gulkana Glacier, Alaska?Mass Balance, Meteorology, and Water Measurements, 1997?2001 written by U.S. Department of the Interior and published by Createspace Independent Pub. This book was released on 2014-10-09 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The measured winter snow, maximum winter snow, net, and annual balances for 1997–2001 in the Gulkana Glacier basin are determined at specific points and over the entire glacier area using the meteorological, hydrological, and glaciological data. We provide descriptions of glacier geometry to aid in estimation of conventional and reference surface mass balances and descriptions of ice motion to aid in the understanding of the glacier's response to its changing geometry. These data provide annual estimates for area altitude distribution, equilibrium line altitude, and accumulation area ratio during the study interval. New determinations of historical area altitude distributions are given for 1900 and annually from 1966 to 2001. As original weather instrumentation is nearing the end of its deployment lifespan, we provide new estimates of overlap comparisons and precipitation catch efficiency.