{"id":1565,"date":"2025-04-22T09:49:20","date_gmt":"2025-04-22T13:49:20","guid":{"rendered":"https:\/\/horizon-research.com\/sbpscience\/?page_id=1565"},"modified":"2025-05-21T23:36:51","modified_gmt":"2025-05-22T03:36:51","slug":"cocorahs-feb","status":"publish","type":"page","link":"https:\/\/horizon-research.com\/sbpscience\/cocorahs\/cocorahs-feb\/","title":{"rendered":"CoCoRaHS, 6: February"},"content":{"rendered":"

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6: February<\/h2>\n

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Investigating the rain shadow effect<\/strong><\/h4>\n

Purpose<\/strong>
Now that students have experience comparing data from their station to others, they will investigate additional stations across the United States. Using data from specific station pairs, students will consider how the rain shadow effect influences the precipitation, climate, and landscape of areas located on different sides of mountain ranges. <\/span><\/p>\n

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Have students consider how mountain ranges can impact precipitation patterns in nearby areas. Help students understand that they will be looking at data from stations on different sides of a mountain to help understand how the mountain affects the weather and climate of areas near mountains.<\/span><\/p>\n

Demonstrate how to access the<\/span> Water Year Summary Reports<\/span><\/a> by selecting \u201cView Data\u201d from the CoCoRaHS homepage and then selecting Water Year Summary Reports under \u201cSummary Reports.\u201d\u00a0 Have students review the Water Year Summary Report of two different stations. (See the Participatory Science support for ideas about how to select stations for illustrating the rain shadow effect.) Consider modeling with the class their own station and a nearby station if you are located in an area that experiences the rain shadow effect. If not, select a mountain range of interest and identify stations on either side (windward and leeward sides) of the mountain range and compare the data from both stations.<\/span><\/p>\n

Consider assigning each group a different mountain range to work with so that as a class you are able to see if observations of the rain shadow effect are similar across different mountain ranges. If a group finishes their work early, you can also encourage them to look at a pair of stations in a different part of the same mountain range or to look at a pair of stations in a different mountain range to see if their observations are similar to the first pair of stations they observed.\u00a0 <\/span><\/p>\n

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Standards + Practices<\/h4>\n

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Science<\/span><\/h4>\n

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DCI: <\/strong>ESS2.C The Roles of Water in Earth’s Surface Processes
ESS2.D Weather and Climate<\/p>\n

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CCC: Cause and Effect<\/a><\/strong><\/p>\n

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SP4: <\/strong>Analyzing and interpreting data
Students will be analyzing and interpreting data from stations around the US. See Narrative and Science Content Supports.
<\/em>
SP5: <\/strong>Using Mathematics and Computational Thinking
Students will be using mathematics and computational thinking as they analyze and interpret the data from the Water Year Summary Reports for paired stations near mountain ranges. See Narrative and Math\/Science Content Supports.<\/em><\/p>\n

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Mathematics<\/span><\/h4>\n

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Statistics & Probability: Summarizing Numerical Data Sets<\/strong><\/a><\/p>\n

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MP2:<\/strong> Reason abstractly and quantitatively
<\/span>MP4:<\/strong> Model with mathematics
<\/span>MP5:<\/strong> Use appropriate tools strategically
<\/span>MP6:<\/strong> Attend to Precision<\/span><\/p>\n

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Resources + Supports<\/h4>\n

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Rain Shadow Effect\u00a0<\/a><\/p>\n

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Water Year <\/a><\/p>\n

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Ms. Clark Explores the Rain Shadow Effect in Oregon<\/a><\/p>\n

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Water Year Summary Report<\/a><\/p>\n

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Analyzing and Interpreting Data<\/a><\/p>\n

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Connecting With a Class Graph of Data<\/a><\/p>\n

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Rain Shadow <\/a><\/p>\n

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March Preview<\/a><\/p>\n

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Rain Shadow Effect <\/b><\/h3>\n

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The rain shadow effect refers to a phenomenon where one side of a mountain has much more rainfall than the other side because the mountain casts a \u201cshadow\u201d on one side sheltering it from prevailing rain-bearing winds and keeping it much drier than the other side. In addition, consider that the altitude of the mountain range has an impact on the intensity of the rain shadow effect. Mountain ranges that are higher in altitude can cast a greater \u201cshadow\u201d on the leeward side of a mountain. Remind students that geographic features such as distance to large bodies of water also relate to the amount of precipitation that stations receive relative to other stations.\u00a0 For more support on this concept, consider the following resources:<\/span><\/p>\n

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