Inventory of glaciers and perennial snowfields of the coterminous USA

Abstract

Abstract. This report summarizes the methods used to construct an inventory of glaciers and perennial snowfields of the contiguous United States. The inventory is based on interpretation of mostly aerial imagery provided by the National Agricultural Imagery Program, US Department of Agriculture with some satellite imagery in places where aerial imagery was not suitable. The inventory includes all perennial snow and ice features greater than 0.01 km2. Due to aerial survey schedules and seasonal snow cover, multiple imagery dates were required. The earliest date is 2013 and the latest is 2020, but more than 73 % of the outlines were acquired from 2015 imagery. The inventory is compiled as shapefiles within a geographic information system that includes feature area and location. The inventory identified 1331 (366.52 km2) glaciers, 1776 (31.00 km2) perennial snowfields, and 35 (3.57 km2) buried-ice features. The data including both the shape files and tabulated results are publicly available at https://doi.org/10.15760/geology-data.03 (Fountain and Glenn, 2022).

On Temporal and Spatial Behaviors of CBRS

“…This rank-list of the interfering CBSDs is called the move-list. To retain the aggregate interference level within a specific range and to maintain the required DPA isolation from PALs and GAAs, the CBSDs with the highest interference contributions are suspended or terminated from further transmissions [4], [5]. As GAA CBSDs operate in the open CBRS band, they incur lower Capital Expenditure (CapEx) and Operational Expenditure (OpEx) [6] and are well suited to providing lowcost services to regions where existing telecommunication services are inadequate.…”