Aerosols Protocol

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Subject:

Science and Technology

Institution Name:

The GLOBE Program, University Corporation for Atmospheric Research (UCAR) and Colorado State University

Collection:

Globe Program

Grade Level:

Secondary

Grade Sub-Level:

High School

Grades:

Grade 9, Grade 10

Abstract:

The purpose of this activity is to measure the aerosol optical thickness of the atmosphere (how much of the sun's light is scattered or absorbed by particles suspended in the air). Students point a GLOBE sun photometer at the sun and record the largest voltage reading they obtain on a digital voltmeter connected to the photometer. Students observe sky conditions near the sun, perform the Cloud, Optional Barometric Pressure (optional) and Relative Humidity Protocols, and measure current air temperature. Intended outcomes are that students will understand the concept that the atmosphere prevents all of the sun's light from reaching Earth's surface and they learn what causes hazy skies. Supporting background materials for both student and teacher are included.

Course Type:

Learning Module

Languages:

English

Material Type:

Activities and Labs, Homework and Assignments, Lesson Plans, Teaching and Learning Strategies

Media Format:

Downloadable docs

Conditions of Use:

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