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# Subject: Geoscience Show all Subject: Geoscience

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Estimating Exchange Rates of Water in Embayments using Simple Budget Equations. part of Quantitative Skills:Activity Collection
Keith Sverdrup, University of Wisconsin-Milwaukee
Simple budgets may be used to estimate the exchange of water in embayments that capitalize on the concept of steady state and conservation principals. This is especially true for bays that experience a significant exchange of freshwater. This exchange of freshwater may reduce the average salt concentration in the bay compared to seawater if it involves addition of freshwater from rivers, R, and/or precipitation, P. Alternatively, it may increase the average salt concentration in the bay compared to seawater if there is relatively little river input and high evaporation, E. Since freshwater input changes the salt concentration in the bay, and salt is a conservative material, it is possible to combine two steady state budgets for a bay, one for salt and one for water, to solve for the magnitude of the water flows that enter and exit the bay mouth. Students will make actual calculations for the inflow and outflow of water to Puget Sound, Washington and the Mediterranean Sea and compare them to actual measured values.

Is There a Trend in Hurricane Number or Intensity? part of Cutting Edge:Hurricanes-Climate Change Connection:Activities
Todd Ellis, SUNY College at Oneonta
This lab guides students through an examination of the hurricane record to determine if there is a trend in hurricane intensity over the past 40 years and introduces some issues related to statistics and ...

Air-sea Interactions: Activities in Oceanography part of Quantitative Skills:Activity Collection
Steve LaDochy, California State University, Los Angeles
This online set of activities help students learn properties of ocean waves, wind-wave relationships and properties of tsunamis.

When is Dinner Served? Predicting the Spring Phytoplankton Bloom in the Gulf of Maine (College Level) part of Starting Point-Teaching Entry Level Geoscience:Teaching with GIS:Examples
Brian Welch
College-level adaptation of the Earth Exploration Toolbook chapter. Students explore the critical role phytoplankton play in the marine food web. -

Gulf Anoxia Course Project part of Quantitative Skills:Activity Collection
Sadredin Moosavi, Tulane University of Louisiana
In this activity students work in groups to investigate the problem of Gulf of Mexico hypoxia before developing mitigation strategies based on local contriubtions to the problem. The students present their ideas in a public meeting debate format from which a solution must be selected by the entire class.

Calculation of the Magnitude of Lunar and Solar Tidal Forces on the Earth part of Quantitative Skills:Activity Collection
Randal Mandock, Clark Atlanta University; Randal Mandock, Clark Atlanta University
Project in which students calculate the magnitude of lunar and solar tidal forces on the earth. They calculate the solar tidal effect relative to the lunar tidal effect and the relative solar tidal effect for spring-tide conditions.

Applications of Vector Operators for Surface Atmospheric/Oceanic Processes part of Quantitative Skills:Activity Collection
David Smith, United States Naval Academy
This lab exercise provides students with activities utilizing vector operations within the context of the atmospheric and oceanic environments.

What is the fate of CO2 produced by fossil fuel combustion? part of Quantitative Skills:Activity Collection
Paul Quay
A box model is used to simulate the build up of carbon dioxide in the atmosphere during the industrial era and predict the future increase in atmospheric CO2 levels during the next century.

Landscape Diffusion Lab part of Quantitative Skills:Activity Collection
Kirsten Menking, Vassar College
Students create a STELLA model of two marine terrace platforms separated in elevation by a cliff, using the hillslope flux equation to simulate the change in the cliff face over time as diffusive processes tear it down.

Question of the Day: Ocean Waves #2 part of Starting Point-Teaching Entry Level Geoscience:Interactive Lectures:Question of the Day
Surfers know that the best waves from distant storms have periods of about 14 seconds. The object of this activity is to compute how long it takes the 14 second period waves to travel 6,000 km across the pacific. ...