Precipitation Frequency for Alaska, USA - NOAA Atlas 14 Volume 7

This GIS grid atlas contains precipitation frequency estimates for Alaska based on precipitation data collected between 1886-2011. This atlas is an updated version of Technical Paper 47, published in 1963, and Technical Paper 52, published in 1965. The grids provide information for durations from 5 minutes through 60 days, and for return periods of 1 year through 1000 years. All grids are in geographic coordinate system (NAD83 horizontal datum) and units are in 1000th of inches.