18. What trends do you notice on the graph below? Arctic sea ice summer minimum 2020 Russia median extent (1981-2010) Greenland Alaska Canada September 15, 2020 Sea ice concentration (percent) Data: NSIDC 100 Daily Arctic sea ice extent (millions of square kilometers) 16 12 1981-2010 average 2015-2019 2020 2010-2014 2005-2009 2012 (record minimum) 1 Jan 1 Mar 1 May 1 Jul 1 Sep 1 Nov 31 Dec date
18. What trends do you notice on the graph below? Arctic sea ice summer minimum 2020 Russia median extent (1981-2010) Greenland Alaska Canada September 15, 2020 Sea ice concentration (percent) Data: NSIDC 100 Daily Arctic sea ice extent (millions of square kilometers) 16 12 1981-2010 average 2015-2019 2020 2010-2014 2005-2009 2012 (record minimum) 1 Jan 1 Mar 1 May 1 Jul 1 Sep 1 Nov 31 Dec date
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
Related questions
Question
WHAT DO YOU NOTICE IN THE TRENDS BELOW?

Transcribed Image Text:18. What trends do you notice on the graph below?
Arctic sea ice summer minimum 2020
Russia
median extent
(1981-2010)
Greenland
Alaska
Canada
September 15, 2020
Sea ice concentration (percent)
Data: NSIDC
100
Daily Arctic sea ice extent (millions of square kilometers)
16
12
1981-2010
average
2015-2019
2020
2010-2014
2005-2009
2012
(record minimum)
1 Jan
1 Mar
1 May
1 Jul
1 Sep
1 Nov
31 Dec
date
NOAA Climate. gov
Data: NSIDC Charctic
(top) Sea ice concentration (light blue to white) on September 15, 2020, the day of the summer minimum
extent. The gold line is the median extent for 1981-2010: half of years had smaller extents, half had larger.
(bottom) A graph of daily ice extent since 2005. Years 2005-2009 are light purple, the record-low year 2012 is
salmon, other years for 2010-2014 are light green, and years 2015-2019 are blue. The 2020 daily extent line is
in black. NOAA Climate.gov image, based on data from the National Snow and Ice Data Center.
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