The Azimuth Project
Experiments in carbon cycle with Sage (Rev #5, changes)

Showing changes from revision #4 to #5: Added | Removed | Changed

Contents

Idea

Create some plots related to the Carbon cycle and do some simple analysis using Sage.

Details

Mauna loa

Diagrams

The classic Keeling curve, plotted upto jan 2011:

Here is a plot of the whole series but showing season corrected values :

Draft Code

Trying to see if TimeSeries,can be used better instead of this

# based on http://wiki.sagemath.org/interact/web made by Marshall Hampton CC 3.0 
import urllib2 as U
import time

current_year = time.localtime().tm_year
co2data = U.urlopen('ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_mm_mlo.txt').readlines()
datalines = []
for a_line in co2data:
    if a_line.find('Creation:') != -1:
        cdate = a_line
    if a_line[0] != '#':
        temp = a_line.replace('\n','').split(' ')
        temp = [float(q) for q in temp if q != '']
        datalines.append(temp)
@interact
def azimviewer(month = [1,2,6,12,24],trend= True): 
    if trend:
        sel_data = [[q[2],q[5]] for q in datalines]
    else:
        sel_data = [[q[2],q[4]] for q in datalines]
    lp = list_plot(sel_data, plotjoined=True, rgbcolor=(1,0,0))
    lp.show(axes = True, figsize = [7,5]) #, aspect_ratio=1)