"-------------------------------------------------------------------------------------------" " Atmospheric CO2 concentrations (ppm) derived from in situ air measurements " " at La Jolla Pier, California: Latitude 32.9°N Longitude 117.3°W Elevation 10m " " " " Source: R. F. Keeling, S. C. Piper, A. F. Bollenbacher and S. J. Walker " " Scripps CO2 Program ( http://scrippsco2.ucsd.edu ) " " Scripps Institution of Oceanography (SIO) " " University of California " " La Jolla, California USA 92093-0244 " " " " Status of data and correspondence: " " " " These data are subject to revision based on recalibration of standard gases. Questions " " about the data should be directed to Dr. Ralph Keeling (rkeeling@ucsd.edu) and " " and Dr. Stephen Piper (scpiper@popmail.ucsd.edu), Scripps CO2 Program. " " " " Baseline data in this file through 30-Sep-2009 from archive dated 01-Oct-2009 10:09:54 " " " "-------------------------------------------------------------------------------------------" " " " Please cite as: " " " " C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and " " H. A. Meijer, Exchanges of atmospheric CO2 and 13CO2 with the terrestrial biosphere and " " oceans from 1978 to 2000. I. Global aspects, SIO Reference Series, No. 01-06, Scripps " " Institution of Oceanography, San Diego, 88 pages, 2001. " " " " If it is necessary to cite a peer-reviewed article, please cite as: " " " " C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and " " H. A. Meijer, Atmospheric CO2 and 13CO2 exchange with the terrestrial biosphere and " " oceans from 1978 to 2000: observations and carbon cycle implications, pages 83-113, " " in "A History of Atmospheric CO2 and its effects on Plants, Animals, and Ecosystems", " " editors, Ehleringer, J.R., T. E. Cerling, M. D. Dearing, Springer Verlag, " " New York, 2005. " " " "-------------------------------------------------------------------------------------------" " " " The data file below contains 10 columns. Columns 1-4 give the dates in several redundant " " formats. Column 5 below gives monthly CO2 concentrations in micro-mol CO2 per mole (ppm) " " reported on the 2008A SIO manometric mole fraction scale. This is the standard " " version of the data most often sought. The monthly values have been adjusted " " to 24:00 hours on the 15th of each month. Column 6 gives the same data after a seasonal " " adjustment to remove the quasi-regular seasonal cycle. The adjustment involves " " subtracting from the data a 4-harmonic fit with a linear gain factor. Column 7 is a " " smoothed version of the data generated from a stiff cubic spline function plus 4-harmonic " " functions with linear gain. Column 8 is the same smoothed version with the seasonal " " cycle removed. Column 9 is identical to Column 5 except that the missing values from " " Column 5 have been filled with values from Column 7. Column 10 is identical to Column 6 " " except missing values have been filled with values from Column 8. Missing values are " " denoted by -99.99 " " " " CO2 concentrations are measured on the '08A' calibration scale " " " Yr, Mn, Date, Date, CO2,seasonally, fit, seasonally, CO2, seasonally , , , , , adjusted, ,adjusted fit, filled,adjusted filled , , Excel, , [ppm], [ppm] , [ppm], [ppm], [ppm], [ppm] 1999, 01, 36175, 1999.0411, 369.84, 368.32, -99.99, -99.99, 369.84, 368.32 1999, 02, 36206, 1999.1260, 370.82, 368.25, 371.81, 369.24, 370.82, 368.25 1999, 03, 36234, 1999.2027, 372.88, 369.77, 372.43, 369.31, 372.88, 369.77 1999, 04, 36265, 1999.2877, 373.65, 369.70, 373.34, 369.38, 373.65, 369.70 1999, 05, 36295, 1999.3699, 373.66, 369.45, 373.63, 369.42, 373.66, 369.45 1999, 06, 36326, 1999.4548, 371.17, 369.53, 371.08, 369.44, 371.17, 369.53 1999, 07, 36356, 1999.5370, 365.65, 368.48, 366.61, 369.45, 365.65, 368.48 1999, 08, 36387, 1999.6219, 363.94, 370.16, 363.22, 369.45, 363.94, 370.16 1999, 09, 36418, 1999.7068, 363.03, 368.91, 363.56, 369.44, 363.03, 368.91 1999, 10, 36448, 1999.7890, 367.78, 370.42, 366.79, 369.43, 367.78, 370.42 1999, 11, 36479, 1999.8740, 368.66, 368.57, 369.52, 369.44, 368.66, 368.57 1999, 12, 36509, 1999.9562, -99.99, -99.99, 370.26, 369.47, 370.26, 369.47 2000, 01, 36540, 2000.0410, 370.00, 368.49, 371.06, 369.55, 370.00, 368.49 2000, 02, 36571, 2000.1257, 372.10, 369.54, 372.22, 369.67, 372.10, 369.54 2000, 03, 36600, 2000.2049, 373.53, 370.41, 372.93, 369.81, 373.53, 370.41 2000, 04, 36631, 2000.2896, 373.43, 369.46, 373.96, 369.99, 373.43, 369.46 2000, 05, 36661, 2000.3716, 374.52, 370.34, 374.38, 370.20, 374.52, 370.34 2000, 06, 36692, 2000.4563, 372.65, 371.09, 372.00, 370.43, 372.65, 371.09 2000, 07, 36722, 2000.5383, 367.81, 370.70, 367.78, 370.67, 367.81, 370.70 2000, 08, 36753, 2000.6230, 364.56, 370.79, 364.69, 370.92, 364.56, 370.79 2000, 09, 36784, 2000.7077, 365.24, 371.08, 365.34, 371.18, 365.24, 371.08 2000, 10, 36814, 2000.7896, 369.15, 371.75, 368.81, 371.42, 369.15, 371.75 2000, 11, 36845, 2000.8743, 372.50, 372.41, 371.73, 371.64, 372.50, 372.41 2000, 12, 36875, 2000.9563, 371.10, 370.31, 372.61, 371.83, 371.10, 370.31 2001, 01, 36906, 2001.0411, 374.60, 373.09, 373.50, 372.00, 374.60, 373.09 2001, 02, 36937, 2001.1260, 374.30, 371.74, 374.70, 372.14, 374.30, 371.74 2001, 03, 36965, 2001.2027, 375.32, 372.23, 375.37, 372.27, 375.32, 372.23 2001, 04, 36996, 2001.2877, 376.33, 372.39, 376.33, 372.39, 376.33, 372.39 2001, 05, 37026, 2001.3699, 377.05, 372.86, 376.69, 372.51, 377.05, 372.86 2001, 06, 37057, 2001.4548, 374.64, 373.01, 374.24, 372.61, 374.64, 373.01 2001, 07, 37087, 2001.5370, 368.47, 371.29, 369.90, 372.72, 368.47, 371.29 2001, 08, 37118, 2001.6219, 367.35, 373.54, 366.63, 372.83, 367.35, 373.54 2001, 09, 37149, 2001.7068, 367.92, 373.77, 367.09, 372.94, 367.92, 373.77 2001, 10, 37179, 2001.7890, 371.87, 374.50, 370.42, 373.04, 371.87, 374.50 2001, 11, 37210, 2001.8740, 372.32, 372.23, 373.23, 373.14, 372.32, 372.23 2001, 12, 37240, 2001.9562, 374.10, 373.32, 374.02, 373.24, 374.10, 373.32 2002, 01, 37271, 2002.0411, 375.44, 373.93, 374.85, 373.34, 375.44, 373.93 2002, 02, 37302, 2002.1260, 375.95, 373.40, 376.01, 373.46, 375.95, 373.40 2002, 03, 37330, 2002.2027, 376.77, 373.68, 376.68, 373.59, 376.77, 373.68 2002, 04, 37361, 2002.2877, 376.65, 372.73, 377.69, 373.77, 376.65, 372.73 2002, 05, 37391, 2002.3699, 377.79, 373.61, 378.15, 373.98, 377.79, 373.61 2002, 06, 37422, 2002.4548, 375.35, 373.72, 375.86, 374.24, 375.35, 373.72 2002, 07, 37452, 2002.5370, 372.22, 375.03, 371.70, 374.51, 372.22, 375.03 2002, 08, 37483, 2002.6219, 368.82, 375.00, 368.62, 374.80, 368.82, 375.00 2002, 09, 37514, 2002.7068, 369.25, 375.08, 369.25, 375.08, 369.25, 375.08 2002, 10, 37544, 2002.7890, 373.78, 376.40, 372.71, 375.33, 373.78, 376.40 2002, 11, 37575, 2002.8740, 375.22, 375.14, 375.65, 375.57, 375.22, 375.14 2002, 12, 37605, 2002.9562, 375.96, 375.18, 376.57, 375.79, 375.96, 375.18 2003, 01, 37636, 2003.0411, -99.99, -99.99, 377.52, 376.02, 377.52, 376.02 2003, 02, 37667, 2003.1260, 378.57, 376.03, 378.79, 376.25, 378.57, 376.03 2003, 03, 37695, 2003.2027, 378.50, 375.41, 379.54, 376.46, 378.50, 375.41 2003, 04, 37726, 2003.2877, 380.61, 376.70, 380.60, 376.68, 380.61, 376.70 2003, 05, 37756, 2003.3699, 381.56, 377.40, 381.06, 376.89, 381.56, 377.40 2003, 06, 37787, 2003.4548, 379.29, 377.67, 378.70, 377.08, 379.29, 377.67 2003, 07, 37817, 2003.5370, 374.55, 377.35, 374.44, 377.24, 374.55, 377.35 2003, 08, 37848, 2003.6219, 370.94, 377.10, 371.24, 377.40, 370.94, 377.10 2003, 09, 37879, 2003.7068, 371.14, 376.96, 371.74, 377.56, 371.14, 376.96 2003, 10, 37909, 2003.7890, 375.43, 378.04, 375.10, 377.72, 375.43, 378.04 2003, 11, 37940, 2003.8740, 378.91, 378.82, 377.96, 377.88, 378.91, 378.82 2003, 12, 37970, 2003.9562, 378.57, 377.80, 378.79, 378.02, 378.57, 377.80 2004, 01, 38001, 2004.0410, 378.99, 377.50, 379.64, 378.15, 378.99, 377.50 2004, 02, 38032, 2004.1257, 380.65, 378.11, 380.80, 378.27, 380.65, 378.11 2004, 03, 38061, 2004.2049, 381.89, 378.80, 381.47, 378.38, 381.89, 378.80 2004, 04, 38092, 2004.2896, 382.51, 378.58, 382.42, 378.49, 382.51, 378.58 2004, 05, 38122, 2004.3716, 381.98, 377.85, 382.74, 378.60, 381.98, 377.85 2004, 06, 38153, 2004.4563, 380.65, 379.11, 380.27, 378.73, 380.65, 379.11 2004, 07, 38183, 2004.5383, 376.23, 379.09, 375.98, 378.85, 376.23, 379.09 2004, 08, 38214, 2004.6230, 373.30, 379.47, 372.81, 378.98, 373.30, 379.47 2004, 09, 38245, 2004.7077, 372.46, 378.24, 373.33, 379.11, 372.46, 378.24 2004, 10, 38275, 2004.7896, 376.88, 379.46, 376.66, 379.24, 376.88, 379.46 2004, 11, 38306, 2004.8743, 377.91, 377.82, 379.48, 379.39, 377.91, 377.82 2004, 12, 38336, 2004.9563, -99.99, -99.99, 380.32, 379.54, 380.32, 379.54 2005, 01, 38367, 2005.0411, 381.63, 380.14, 381.19, 379.70, 381.63, 380.14 2005, 02, 38398, 2005.1260, 382.32, 379.79, 382.38, 379.85, 382.32, 379.79 2005, 03, 38426, 2005.2027, 384.16, 381.09, 383.04, 379.97, 384.16, 381.09 2005, 04, 38457, 2005.2877, 383.81, 379.91, 384.01, 380.11, 383.81, 379.91 2005, 05, 38487, 2005.3699, 383.83, 379.69, 384.40, 380.25, 383.83, 379.69 2005, 06, 38518, 2005.4548, 381.05, 379.44, 382.03, 380.42, 381.05, 379.44 2005, 07, 38548, 2005.5370, 377.67, 380.46, 377.82, 380.61, 377.67, 380.46 2005, 08, 38579, 2005.6219, 375.20, 381.33, 374.70, 380.83, 375.20, 381.33 2005, 09, 38610, 2005.7068, 374.39, 380.18, 375.28, 381.07, 374.39, 380.18 2005, 10, 38640, 2005.7890, 380.11, 382.71, 378.71, 381.31, 380.11, 382.71 2005, 11, 38671, 2005.8740, 380.40, 380.32, 381.65, 381.56, 380.40, 380.32 2005, 12, 38701, 2005.9562, -99.99, -99.99, 382.58, 381.81, 382.58, 381.81 2006, 01, 38732, 2006.0411, 383.55, 382.06, 383.55, 382.06, 383.55, 382.06 2006, 02, 38763, 2006.1260, 385.05, 382.52, 384.82, 382.30, 385.05, 382.52 2006, 03, 38791, 2006.2027, 385.93, 382.87, 385.57, 382.51, 385.93, 382.87 2006, 04, 38822, 2006.2877, 386.10, 382.21, 386.61, 382.72, 386.10, 382.21 2006, 05, 38852, 2006.3699, 386.71, 382.58, 387.05, 382.92, 386.71, 382.58 2006, 06, 38883, 2006.4548, 384.70, 383.09, 384.71, 383.09, 384.70, 383.09 2006, 07, 38913, 2006.5370, 382.61, 385.39, 380.45, 383.24, 382.61, 385.39 2006, 08, 38944, 2006.6219, 375.17, 381.28, 377.24, 383.35, 375.17, 381.28 2006, 09, 38975, 2006.7068, 376.92, 382.69, 377.70, 383.47, 376.92, 382.69 2006, 10, 39005, 2006.7890, 381.16, 383.75, 380.99, 383.59, 381.16, 383.75 2006, 11, 39036, 2006.8740, 383.36, 383.27, 383.80, 383.71, 383.36, 383.27 2006, 12, 39066, 2006.9562, 384.57, 383.80, 384.61, 383.84, 384.57, 383.80 2007, 01, 39097, 2007.0411, 386.55, 385.06, 385.45, 383.97, 386.55, 385.06 2007, 02, 39128, 2007.1260, -99.99, -99.99, 386.61, 384.09, 386.61, 384.09 2007, 03, 39156, 2007.2027, -99.99, -99.99, 387.26, 384.21, 387.26, 384.21 2007, 04, 39187, 2007.2877, 388.90, 385.02, 388.21, 384.34, 388.90, 385.02 2007, 05, 39217, 2007.3699, 388.79, 384.67, 388.59, 384.46, 388.79, 384.67 2007, 06, 39248, 2007.4548, 386.08, 384.47, 386.21, 384.60, 386.08, 384.47 2007, 07, 39278, 2007.5370, 382.47, 385.24, 381.97, 384.75, 382.47, 385.24 2007, 08, 39309, 2007.6219, 378.34, 384.44, 378.82, 384.92, 378.34, 384.44 2007, 09, 39340, 2007.7068, 378.40, 384.16, 379.36, 385.12, 378.40, 384.16 2007, 10, 39370, 2007.7890, 382.01, 384.60, 382.77, 385.36, 382.01, 384.60 2007, 11, 39401, 2007.8740, -99.99, -99.99, 385.72, 385.64, 385.72, 385.64 2007, 12, 39431, 2007.9562, 386.17, 385.41, 386.70, 385.93, 386.17, 385.41 2008, 01, 39462, 2008.0410, 388.58, 387.10, 387.72, 386.24, 388.58, 387.10 2008, 02, 39493, 2008.1257, 388.69, 386.19, 389.06, 386.55, 388.69, 386.19 2008, 03, 39522, 2008.2049, 389.54, 386.48, 389.88, 386.82, 389.54, 386.48 2008, 04, 39553, 2008.2896, 391.40, 387.51, 390.98, 387.09, 391.40, 387.51 2008, 05, 39583, 2008.3716, 391.68, 387.59, 391.41, 387.32, 391.68, 387.59 2008, 06, 39614, 2008.4563, 388.95, 387.42, 389.05, 387.52, 388.95, 387.42 2008, 07, 39644, 2008.5383, 384.93, 387.77, 384.85, 387.68, 384.93, 387.77 2008, 08, 39675, 2008.6230, 380.49, 386.59, 381.71, 387.82, 380.49, 386.59 2008, 09, 39706, 2008.7077, 382.05, 387.77, 382.23, 387.95, 382.05, 387.77 2008, 10, 39736, 2008.7896, 383.40, 385.96, 385.52, 388.08, 383.40, 385.96 2008, 11, 39767, 2008.8743, 388.85, 388.76, 388.30, 388.21, 388.85, 388.76 2008, 12, 39797, 2008.9563, 389.87, 389.10, 389.12, 388.35, 389.87, 389.10 2009, 01, 39828, 2009.0411, 388.45, 386.98, 389.97, 388.49, 388.45, 386.98 2009, 02, 39859, 2009.1260, 391.01, 388.50, 391.15, 388.64, 391.01, 388.50 2009, 03, 39887, 2009.2027, 392.05, 389.01, 391.83, 388.79, 392.05, 389.01 2009, 04, 39918, 2009.2877, 393.11, 389.26, 392.84, 388.98, 393.11, 389.26 2009, 05, 39948, 2009.3699, 392.73, 388.63, 393.29, 389.19, 392.73, 388.63 2009, 06, 39979, 2009.4548, 389.61, 388.01, 391.04, 389.44, 389.61, 388.01 2009, 07, 40009, 2009.5370, 384.63, 387.39, 386.97, 389.73, 384.63, 387.39 2009, 08, 40040, 2009.6219, 386.01, 392.08, 383.97, 390.04, 386.01, 392.08 2009, 09, 40071, 2009.7068, 386.99, 392.72, 384.60, 390.33, 386.99, 392.72 2009, 10, 40101, 2009.7890, 384.63, 387.20, -99.99, -99.99, 384.63, 387.20 2009, 11, 40132, 2009.8740, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2009, 12, 40162, 2009.9562, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99