C. TWO-LINE GRAPH Two different datasets are plotted as a function of time in Fig. A1.7.3, both obtained by analysis of an ice core from Vostok Station, Antarctica (https://www.nedc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core). The blue line tracks the change in temperature at Vostok Station relative to the present, and the relative temperature scale is printed on the right vertical axis of the graph. Positive values indicate warmer than present, and negative values are cooler than present. The red line tracks the concentration of carbon dioxide at Vostok Station, and the corresponding scale is on the left vertical axis. Both plots share the same time scale on the horizontal axis. Figure A1.7.3 400 380 360 340 CO₂ (ppmv) 320 300 8280 260 240 220 200 180 400000 300000 200000 Age (years before present) Current 100000 16 14 12 10 00 LO S N O 7 7 9 9 10 Temperature change (°C) from present based on deuterium South Pole ANTARCTICA Vostok Station

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
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C. TWO-LINE GRAPH Two different datasets are plotted as a function of time in Fig. A1.7.3,
both obtained by analysis of an ice core from Vostok Station, Antarctica
(https://www.nedc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core). The
blue line tracks the change in temperature at Vostok Station relative to the present, and
the relative temperature scale is printed on the right vertical axis of the graph. Positive
values indicate warmer than present, and negative values are cooler than present. The red
line tracks the concentration of carbon dioxide at Vostok Station, and the corresponding
scale is on the left vertical axis. Both plots share the same time scale on the horizontal
axis.
Figure A1.7.3
400
380
360
340
CO₂ (ppmv)
320
300
8280
260
240
220
200
180
400000
300000
200000
Age (years before present)
Current
100000
16
14
12
10
00
LO
S
N
O
7 7 9 9
10
Temperature change (°C) from present
based on deuterium
South
Pole
ANTARCTICA
Vostok
Station
Transcribed Image Text:C. TWO-LINE GRAPH Two different datasets are plotted as a function of time in Fig. A1.7.3, both obtained by analysis of an ice core from Vostok Station, Antarctica (https://www.nedc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core). The blue line tracks the change in temperature at Vostok Station relative to the present, and the relative temperature scale is printed on the right vertical axis of the graph. Positive values indicate warmer than present, and negative values are cooler than present. The red line tracks the concentration of carbon dioxide at Vostok Station, and the corresponding scale is on the left vertical axis. Both plots share the same time scale on the horizontal axis. Figure A1.7.3 400 380 360 340 CO₂ (ppmv) 320 300 8280 260 240 220 200 180 400000 300000 200000 Age (years before present) Current 100000 16 14 12 10 00 LO S N O 7 7 9 9 10 Temperature change (°C) from present based on deuterium South Pole ANTARCTICA Vostok Station
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