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Solved: The amount of sea ice surrounding the Antarctic continent varies dramatically during

The amount of sea ice surrounding the Antarctic continent varies dramatically during the year, and from year to year. The following data, shown in Table 8.9, were obtained from the NASA Earth Observatory website and represent the extent of the sea ice during the September maximum and February (of the following year) minimum. The first line in the table is the mean of data collected over the previous 20 years. (a) Plot both the September values and February values vs. the year, and add a line representing the average ice extent for 1979-2000 (b) Use the find command to determine which years exceeded the average September values for 1979-2000. (c) Use the find command to determine which years were lower than the average February values for 1979-2000.In the previous chapter, the data in this problem were evaluated using the find function. Repeat the calculations, using a nested loop structure. The file lake_powell.dat contains the data listed in Table 8.9. Table 8.9 Antarctic Sea ice Extent Year September Average Extent February Average Extent millions of square kilometers millions of square kilometers 1979 - 2000 mean 18.7 2.9 1999/2000 19 2.8 2000/2001 2001/2002 2002/2003 19.1 3.7 18.4 2.9 18.2 3.9 2003/2004 2004/2005 2005/2006 2006/2007 2007 /2008 2008/2009 2009/2010 2010/2011 2011/2012 2012/2013 18.6 3.6 19.1 2.9 19.1 2.7 19.4 2.9 19.3 3.9 18.5 2.9 19.2 3.2 19.2 2.5 18.9 3.5 19.4 3.8
The amount of sea ice surrounding the Antarctic continent varies dramatically during the year, and from year to year. The following data, shown in Table 8.9, were obtained from the NASA Earth Observatory website and represent the extent of the sea ice during the September maximum and February (of the following year) minimum. The first line in the table is the mean of data collected over the previous 20 years. (a) Plot both the September values and February values vs. the year, and add a line representing the average ice extent for 1979-2000. (b) Use the find command to determine which years exceeded the average September values for 1979-2000. (c) Use the find command to determine which years were lower than the average February values for 1979-2000. In the previous chapter, the data in this problem were evaluated using the find function. Repeat the calculations, using a nested loop structure. The file lake_powell.dat contains the data listed in Table 8.9.

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