125000 -CO₂ -Temperature I m m W W W -12 800000 600000 400000 200000 320 280 240 200 160 100000 CO2 (ppm) Age (years before present) 160000 Figure 2B. Temperature change (light blue) overlain with and carbon dioxide change (dark blue) measured from the EPICA Dome Cice core in Antarctica (Jouzel et al. 2007; Lüthi et al. 2008). Figures 2A and 2B show the past 800,000 years of temperature and carbon dioxide data, extracted from the EPICA ice core from Antarctica. Note that temperature values in Figure 2A and 2B are based on an average temperature close to the present. Negative temperature values are below average, and positive values are above average. Temperature and CO2 from Antarctic ice cores over the past 800,000 years CO₂ concentration, ppmv Antarctic temperature, °C 0 -4 -8 -12 800,000 600,000 400,000 Years before present 200,000 Current 400 0 350 300 250 200 150 Figure 2A. Temperature change (red) and carbon dioxide change (dark blue) over the past 800,000 years. Note that temperature values are measured from hydrogen isotope ratios in the ice and are calculated based on an average temperature close to the present. Negative temperature values are below average and positive values are above average. (Bailey et al., 2015).

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Question

1.a) In the 800,000-year ice core data (Figure 2A), compare the patterns of temperature and atmospheric carbon dioxide data? Describe the relationship between temperature and carbon dioxide.

1.b) Use Figure 2B to determine the highest and lowest temperature values recorded in the Antarctic ice over the past 800,000 years? You may find it useful to use a clear ruler to read the graph.

1.c) UseFigure 2B to determine the highest and lowest carbon dioxide values recorded in the Antarctic ice over the past 800,000 years? You may find it useful to use a clear ruler to read the graph.