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This activity prepares the student to launch an investigation of the relationship between precipitation and Streamflow for a local watershed. It can enrich a study of the water cycle. Following the step-by-step instruction in this case study,... (View More) students will locate, download, format, and finally graph one year of Web-based data for these two variables. Included is a graph that highlights the details of this often-complex precipitation-streamflow relationship and provides a context for launching a classroom discussion of the balance between surface runoff and infiltration during and after a rain event, soil porosity, soil saturate level, the influence of impervious surfaces in the basin, the impact of slope, wind and air temperature on watershed hydrology, and the influence of high or low vegetation. This chapter is part of the Earth Exploration Toolbook (EET). Each EET 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. (View Less)
In this lesson, students will use the Live Access Server to access and use historical satellite data for the Costa Rican (Central American) region. Students will examine monthly precipitation averages over three years to look for seasonal patterns.... (View More) The lesson includes detailed procedures, related links and sample graphs, follow-up questions, extensions, and teacher notes. This lesson is from the MY NASA DATA project, which has created microsets from large scientific data sets, and wrapped them with tools, lesson plans, and supporting documentation so that a teacher, or anyone in the interested public, can use authentic NASA Earth system science data. (View Less)
This lesson explores the relationship between the amount of water vapor in the atmosphere available for precipitation and actual precipitation levels. After accessing and graphing the satellite data on both water vapor and precipitation levels,... (View More) students will examine, compare and interpret monthly, seasonal, yearly and/or global patterns. This lesson uses student- and citizen science-friendly microsets of authentic NASA Earth system science data from the MY NASA DATA project. It also includes sample graphs, related links, extensions, an online glossary, and data analysis tools. (View Less)