Precipitation Trends in Alaska: Data Limitations & Complex Controls
This webinar explores inhomogeneities in surface station precipitation data, and methods for overcoming them in trend analyses.
Presenter: Stephanie McAfee, University of Nevada, Reno
When: Tuesday, June 17, 2014, from 10-11 a.m. AKDT
Changes in precipitation are important drivers of many observed hydrological and ecological processes, and precipitation is a key component of many studies. However, existing studies of precipitation trends in Alaska did not agree about the magnitude or even direction of trends. This session's presenter revisited the question, analyzing homogeneity and trends in station data and three commonly used gridded precipitation data sets. She identified numerous inhomogeneities in both the station data and the gridded products and discovered that the three gridded products displayed very dissimilar patterns of trend. She will present some suggestions for moving forward despite the imperfect data.
This webinar is free.