This chapter studies the relationship between precipitation, evaporation, and surface runoff data, collected and aggregated by the North American Regional Reanalysis project. Using FieldScope, an online GIS created at the National Geographic Society, you will explore data layers, create a map table for comparison, and analyze geographic patterns.
This chapter is part of the Earth Exploration Toolbook. Each chapter provides teachers and/or students with direct practice for using scientific tools to analyze Earth science data. Students should begin on the Case Study page.
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