# -*- coding: utf-8 -*- """ Climate indices for geotechnical engineering consideration are extremely important for designing engineered structures on permanently frozen and seasonally frozen soils, particularly in Alaska. Relevant climate indices typically include (over a given timespan) a site's average air temperature, the average air freezing and air thawing indices, and the design air freezing and thawing indices (the average of the three coldest or three warmest years, respectively). The University of Alaska Fairbanks (UAF) Scenarios Network for Alaska and Arctic Planning (http://snap.uaf.edu) has prepared and maintains a geographically gridded dataset representing calculated climate parameters across Alaska. SNAP provides an estimate of historical climate conditions in regions of Alaska that do not have consistent climate records, as well as providing scientifically defined peer-reviewed climatic projections. Previous methods utilized in engineering practice for projecting climate indices involved procedures with no scientific basis (linear extrapolation), and provided little confidence in the accuracy of the results. As distributed, the SNAP datasets are extremely large and cumbersome, and represent a significant hurdle for users to process site-specific data. .. moduleauthor:: Matthew Dillon """ from ._backend import SNAPDataSet, GeoRefData, mkdir_p, wgs84_to_ne, ne_to_wgs