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Instructions:
Pre-Industrial Earth Paper vs Current Earth Paper Concentrations
This week, we’ll investigate past, current, and future climates using an online climate model called “Build your own Earth.”
Build Your Own Earth is a game that allows you to create your own world. The creators of Build Your Own Earth have provided some background information.
Build Your Own Earth (BYOE; http://www.buildyourownearth.com) was a vision we had to get children interested in learning about the factors that influence the Earth’s climate. The aim was for you to pick and choose the aspects you wanted to
include in your planet: distance from the Sun, axis tilt, location of continents, oceans, and mountains, rotation rate, atmospheric composition, and so on. You would type these details into a web page and hit the “Go” button. In the background, a climate model would generate the climate on that world for you. Isn’t it exciting?
Unfortunately, due to the speed of today’s computers, such a vision is not now attainable. Our supercomputer can only run roughly 480 years of model climate in one day, even with a simplified climate model developed for speed (FOAM: the
Fast OceanAtmosphere Model). Even with coarse grid spacing, 50300 years of simulations would be required to achieve a stable climate! Furthermore, with a large number of students submitting simulations in real time, our supercomputer would be overloaded. Instead, we pre-selected roughly 50 Earths, ran computer simulations, and plotted the simulation results for you to look at. Our pre-selected Earths are divided into three groups: Alien, alien, alien, alien, alien, alien, alien,
alien, alien, alien,
A Current Day (2015) simulation with 400 ppm of CO2 in the atmosphere (check today’s CO2 concentration here: https://www.co2.earth/ (Links to an external source.)) is included in recent Earths. A preindustrial control simulation and a 1975
simulation are also available. We also have one where there are no greenhouse gases in the atmosphere to demonstrate the relevance of greenhouse gases to Earth. We also have simulations in which we adjusted carbon dioxide
concentrations (including those from the future! ), the quantity of solar energy received by the Earth, and the Earth’s orbital characteristics (axial tilt and elongation).
Ancient Earths includes images from the Last Glacial Maximum (21,000 years ago), as well as the Miocene, Jurassic, Triassic, Carboniferous, Cambrian, and Ediacaran geologic periods. We used Colorado Plateau Geosystems’ paleogeography
econstructions as well as atmospheric composition reconstructions.
Alien Earths are modest climate model studies that try to extract the essence of the climate. What effect does the lack of continents have on Earth (Aquaplanet)? What would the circulation be like in a Snowball Earth episode (Iceplanet, which
would be extremely similar to Hoth from Star Wars: Episode II)? What would happen if the equator was occupied by a single continent? Or are you going to be on the pole? What if the entire Earth was made up of land, with only a single ocean in
the middle?
– Dr. Jonathan Fairman and Prof. David Schultz, Centre for Atmospheric Sciences eLearning Team members Stuart Anderson and Sharon Gardner
Pre-Industrial Earth Paper vs Current Earth Paper Concentrations
RUBRIC |
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Excellent Quality 95-100%
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Introduction
45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Literature Support 91-84 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met. |
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Average Score 50-85% |
40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. |
83-76 points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration. |
52-49 points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met. |
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Poor Quality 0-45% |
37-1 points The background and/or significance are missing. No search history information is provided. |
75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration. |
48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met |
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Pre-Industrial Earth Paper vs Current Earth Paper Concentrations |
Pre-Industrial Earth Paper vs Current Earth Paper Concentrations