The atmospheric C O 2 level A ( t ) at Mauna Loa, Hawaii at time t (in parts per
ID: 878158 • Letter: T
Question
The atmospheric CO2 level A(t) at Mauna Loa, Hawaii at time t (in parts per million by volume) is recorded by the Scripps Institution of
Oceanography. The values for the months January-December 2007 were
382.46 , 383.68 ,384.23, 386.25, 386.39, 385.86, 384.38, 381.78, 380.74, 380.81, 382.33, 383.68
Assuming that the measurements were made on the first of each month, you have to estimate A(t) on the 15th of the months January-November.
The estimates are:
A' (t): Jan Feb Mar April May June July August September October November Dec
Explanation / Answer
I think question was suppose to ask method to estimate on 15th of each month.
Since no method is mentioned in question, you can use average measurement done on 1st of that month and the next month as the pressure on 15th of that month.
For example:
A'(t) of Jan = {A(t) of Jan + A(t) of Feb} / 2
A(t)
A'(t)
Jan
382.46
383.07
Feb
383.68
383.955
Mar
384.23
385.24
Apr
386.25
386.32
May
386.39
386.125
Jun
385.86
385.12
Jul
384.38
383.08
Aug
381.78
381.26
Sep
380.74
380.775
Oct
380.81
381.57
Nov
382.33
383.005
Dec
383.68
A(t)
A'(t)
Jan
382.46
383.07
Feb
383.68
383.955
Mar
384.23
385.24
Apr
386.25
386.32
May
386.39
386.125
Jun
385.86
385.12
Jul
384.38
383.08
Aug
381.78
381.26
Sep
380.74
380.775
Oct
380.81
381.57
Nov
382.33
383.005
Dec
383.68
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