View in Google My Maps As the planet warms, largely due to anthropogenic greenhouse gas emissions, other aspects of the climate system are expected to change in kind, including atmospheric circulation, temperature and precipitation. The effects of climate change on the water cycle will change the behavior of many rivers around the world. The Columbia River, whose flow is heavily…

A database of dynamically downscaled climate projections for the Pacific Northwest, produced using the Weather Research and Forecasting (WRF) regional climate model, and implemented at an hourly temporal resolution and a spatial resolution of 12 km. These climate projections have also been used to produce hydrologic change projections at a spatial resolution of 1/16th degree (~30 km2) over Washington State….

Recent flooding in the Chehalis basin has led managers, residents, and others to begin evaluating options for managing flood risk in the future. Climate change is expected to both increase the risk of flooding and result in decreased summer low flows – with implications for human communities and ecosystems alike. This page summarizes the results of a study aimed at…

This dataset is a summary of the projected changes in average annual and seasonal temperature and precipitation from global climate model projections (GCMs) of 21st century climate change for the Pacific Northwest region. Data are derived from the two most recent Coupled Model Intercomparison Projects, Phase 3 (CMIP3¹, used in the 2007 IPCC report) and Phase 5 (CMIP5², used in…