"-------------------------------------------------------------------------------------------" " 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 04-Nov-2011 from archive dated 05-Dec-2011 13:45:08 " " " "-------------------------------------------------------------------------------------------" " " " 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, 369.70, 368.26, -99.99, -99.99, 369.70, 368.26 1999, 02, 36206, 1999.1260, 370.79, 368.41, 371.68, 369.30, 370.79, 368.41 1999, 03, 36234, 1999.2027, 372.90, 369.90, 372.32, 369.32, 372.90, 369.90 1999, 04, 36265, 1999.2877, 373.68, 369.80, 373.23, 369.34, 373.68, 369.80 1999, 05, 36295, 1999.3699, 373.64, 369.54, 373.45, 369.35, 373.64, 369.54 1999, 06, 36326, 1999.4548, 371.50, 369.66, 371.19, 369.35, 371.50, 369.66 1999, 07, 36356, 1999.5370, 365.64, 368.20, 366.79, 369.35, 365.64, 368.20 1999, 08, 36387, 1999.6219, 363.65, 369.89, 363.12, 369.35, 363.65, 369.89 1999, 09, 36418, 1999.7068, 362.85, 368.60, 363.62, 369.37, 362.85, 368.60 1999, 10, 36448, 1999.7890, 367.77, 370.21, 366.96, 369.40, 367.77, 370.21 1999, 11, 36479, 1999.8740, 368.16, 368.22, 369.40, 369.46, 368.16, 368.22 1999, 12, 36509, 1999.9562, -99.99, -99.99, 370.14, 369.53, 370.14, 369.53 2000, 01, 36540, 2000.0410, 369.97, 368.52, 371.09, 369.64, 369.97, 368.52 2000, 02, 36571, 2000.1257, 372.11, 369.71, 372.17, 369.77, 372.11, 369.71 2000, 03, 36600, 2000.2049, 373.76, 370.73, 372.95, 369.91, 373.76, 370.73 2000, 04, 36631, 2000.2896, 373.44, 369.51, 374.01, 370.08, 373.44, 369.51 2000, 05, 36661, 2000.3716, 374.33, 370.21, 374.38, 370.26, 374.33, 370.21 2000, 06, 36692, 2000.4563, 372.55, 370.77, 372.24, 370.45, 372.55, 370.77 2000, 07, 36722, 2000.5383, 367.76, 370.41, 368.01, 370.66, 367.76, 370.41 2000, 08, 36753, 2000.6230, 364.48, 370.79, 364.58, 370.88, 364.48, 370.79 2000, 09, 36784, 2000.7077, 365.29, 371.05, 365.35, 371.11, 365.29, 371.05 2000, 10, 36814, 2000.7896, 369.15, 371.59, 368.90, 371.33, 369.15, 371.59 2000, 11, 36845, 2000.8743, 372.44, 372.49, 371.49, 371.54, 372.44, 372.49 2000, 12, 36875, 2000.9563, 371.13, 370.51, 372.34, 371.73, 371.13, 370.51 2001, 01, 36906, 2001.0411, 374.61, 373.15, 373.36, 371.90, 374.61, 373.15 2001, 02, 36937, 2001.1260, 374.28, 371.86, 374.47, 372.05, 374.28, 371.86 2001, 03, 36965, 2001.2027, 375.32, 372.28, 375.22, 372.17, 375.32, 372.28 2001, 04, 36996, 2001.2877, 376.33, 372.39, 376.24, 372.30, 376.33, 372.39 2001, 05, 37026, 2001.3699, 377.03, 372.86, 376.58, 372.41, 377.03, 372.86 2001, 06, 37057, 2001.4548, 374.35, 372.49, 374.39, 372.52, 374.35, 372.49 2001, 07, 37087, 2001.5370, 368.49, 371.09, 370.03, 372.63, 368.49, 371.09 2001, 08, 37118, 2001.6219, 367.16, 373.49, 366.42, 372.75, 367.16, 373.49 2001, 09, 37149, 2001.7068, 367.95, 373.79, 367.04, 372.87, 367.95, 373.79 2001, 10, 37179, 2001.7890, 371.87, 374.35, 370.51, 372.99, 371.87, 374.35 2001, 11, 37210, 2001.8740, 372.37, 372.43, 373.05, 373.11, 372.37, 372.43 2001, 12, 37240, 2001.9562, 374.11, 373.49, 373.84, 373.22, 374.11, 373.49 2002, 01, 37271, 2002.0411, 375.45, 373.98, 374.81, 373.34, 375.45, 373.98 2002, 02, 37302, 2002.1260, 375.95, 373.51, 375.92, 373.48, 375.95, 373.51 2002, 03, 37330, 2002.2027, 376.76, 373.69, 376.68, 373.61, 376.76, 373.69 2002, 04, 37361, 2002.2877, 376.66, 372.69, 377.75, 373.78, 376.66, 372.69 2002, 05, 37391, 2002.3699, 377.76, 373.56, 378.18, 373.98, 377.76, 373.56 2002, 06, 37422, 2002.4548, 375.26, 373.37, 376.10, 374.22, 375.26, 373.37 2002, 07, 37452, 2002.5370, 372.28, 374.89, 371.85, 374.47, 372.28, 374.89 2002, 08, 37483, 2002.6219, 368.50, 374.87, 368.36, 374.74, 368.50, 374.87 2002, 09, 37514, 2002.7068, 369.22, 375.10, 369.12, 375.00, 369.22, 375.10 2002, 10, 37544, 2002.7890, 373.81, 376.30, 372.75, 375.24, 373.81, 376.30 2002, 11, 37575, 2002.8740, 375.13, 375.19, 375.42, 375.48, 375.13, 375.19 2002, 12, 37605, 2002.9562, 375.94, 375.32, 376.33, 375.71, 375.94, 375.32 2003, 01, 37636, 2003.0411, -99.99, -99.99, 377.41, 375.93, 377.41, 375.93 2003, 02, 37667, 2003.1260, 378.57, 376.11, 378.61, 376.15, 378.57, 376.11 2003, 03, 37695, 2003.2027, 378.52, 375.43, 379.44, 376.35, 378.52, 375.43 2003, 04, 37726, 2003.2877, 380.62, 376.62, 380.56, 376.56, 380.62, 376.62 2003, 05, 37756, 2003.3699, 380.97, 376.74, 380.99, 376.76, 380.97, 376.74 2003, 06, 37787, 2003.4548, 379.30, 377.41, 378.86, 376.96, 379.30, 377.41 2003, 07, 37817, 2003.5370, 374.33, 376.97, 374.50, 377.14, 374.33, 376.97 2003, 08, 37848, 2003.6219, 370.91, 377.33, 370.90, 377.32, 370.91, 377.33 2003, 09, 37879, 2003.7068, 370.94, 376.87, 371.57, 377.49, 370.94, 376.87 2003, 10, 37909, 2003.7890, 375.43, 377.94, 375.15, 377.66, 375.43, 377.94 2003, 11, 37940, 2003.8740, 378.85, 378.91, 377.77, 377.83, 378.85, 378.91 2003, 12, 37970, 2003.9562, 378.52, 377.90, 378.60, 377.97, 378.52, 377.90 2004, 01, 38001, 2004.0410, 379.01, 377.52, 379.59, 378.10, 379.01, 377.52 2004, 02, 38032, 2004.1257, 380.63, 378.16, 380.70, 378.23, 380.63, 378.16 2004, 03, 38061, 2004.2049, 381.89, 378.76, 381.47, 378.34, 381.89, 378.76 2004, 04, 38092, 2004.2896, 382.51, 378.46, 382.51, 378.46, 382.51, 378.46 2004, 05, 38122, 2004.3716, 381.96, 377.71, 382.82, 378.58, 381.96, 377.71 2004, 06, 38153, 2004.4563, 380.67, 378.83, 380.55, 378.71, 380.67, 378.83 2004, 07, 38183, 2004.5383, 376.23, 378.96, 376.11, 378.84, 376.23, 378.96 2004, 08, 38214, 2004.6230, 373.26, 379.76, 372.48, 378.98, 373.26, 379.76 2004, 09, 38245, 2004.7077, 372.45, 378.39, 373.17, 379.11, 372.45, 378.39 2004, 10, 38275, 2004.7896, 376.90, 379.41, 376.75, 379.25, 376.90, 379.41 2004, 11, 38306, 2004.8743, 377.83, 377.89, 379.34, 379.40, 377.83, 377.89 2004, 12, 38336, 2004.9563, -99.99, -99.99, 380.18, 379.55, 380.18, 379.55 2005, 01, 38367, 2005.0411, 381.65, 380.14, 381.20, 379.70, 381.65, 380.14 2005, 02, 38398, 2005.1260, 382.31, 379.82, 382.34, 379.85, 382.31, 379.82 2005, 03, 38426, 2005.2027, 384.14, 381.01, 383.12, 379.98, 384.14, 381.01 2005, 04, 38457, 2005.2877, 383.82, 379.76, 384.20, 380.14, 383.82, 379.76 2005, 05, 38487, 2005.3699, 383.85, 379.56, 384.59, 380.30, 383.85, 379.56 2005, 06, 38518, 2005.4548, 381.05, 379.12, 382.40, 380.48, 381.05, 379.12 2005, 07, 38548, 2005.5370, 378.25, 380.93, 378.00, 380.67, 378.25, 380.93 2005, 08, 38579, 2005.6219, 374.56, 381.08, 374.37, 380.89, 374.56, 381.08 2005, 09, 38610, 2005.7068, 374.41, 380.43, 375.10, 381.11, 374.41, 380.43 2005, 10, 38640, 2005.7890, 380.15, 382.70, 378.79, 381.34, 380.15, 382.70 2005, 11, 38671, 2005.8740, 380.38, 380.44, 381.50, 381.56, 380.38, 380.44 2005, 12, 38701, 2005.9562, -99.99, -99.99, 382.43, 381.79, 382.43, 381.79 2006, 01, 38732, 2006.0411, 383.56, 382.04, 383.53, 382.01, 383.56, 382.04 2006, 02, 38763, 2006.1260, 385.04, 382.53, 384.75, 382.24, 385.04, 382.53 2006, 03, 38791, 2006.2027, 385.93, 382.78, 385.59, 382.43, 385.93, 382.78 2006, 04, 38822, 2006.2877, 386.10, 382.01, 386.73, 382.64, 386.10, 382.01 2006, 05, 38852, 2006.3699, 386.71, 382.39, 387.16, 382.83, 386.71, 382.39 2006, 06, 38883, 2006.4548, 384.71, 382.77, 384.96, 383.02, 384.71, 382.77 2006, 07, 38913, 2006.5370, 382.65, 385.35, 380.49, 383.19, 382.65, 385.35 2006, 08, 38944, 2006.6219, 375.13, 381.70, 376.77, 383.34, 375.13, 381.70 2006, 09, 38975, 2006.7068, 376.92, 382.97, 377.42, 383.48, 376.92, 382.97 2006, 10, 39005, 2006.7890, 381.19, 383.75, 381.04, 383.61, 381.19, 383.75 2006, 11, 39036, 2006.8740, 383.36, 383.42, 383.67, 383.73, 383.36, 383.42 2006, 12, 39066, 2006.9562, 384.55, 383.91, 384.50, 383.85, 384.55, 383.91 2007, 01, 39097, 2007.0411, 386.55, 385.02, 385.50, 383.97, 386.55, 385.02 2007, 02, 39128, 2007.1260, -99.99, -99.99, 386.62, 384.09, 386.62, 384.09 2007, 03, 39156, 2007.2027, -99.99, -99.99, 387.38, 384.20, 387.38, 384.20 2007, 04, 39187, 2007.2877, 388.91, 384.79, 388.45, 384.33, 388.91, 384.79 2007, 05, 39217, 2007.3699, 388.78, 384.43, 388.83, 384.47, 388.78, 384.43 2007, 06, 39248, 2007.4548, 386.10, 384.15, 386.59, 384.63, 386.10, 384.15 2007, 07, 39278, 2007.5370, 382.46, 385.17, 382.09, 384.81, 382.46, 385.17 2007, 08, 39309, 2007.6219, 378.28, 384.90, 378.40, 385.01, 378.28, 384.90 2007, 09, 39340, 2007.7068, 378.44, 384.54, 379.14, 385.24, 378.44, 384.54 2007, 10, 39370, 2007.7890, 382.02, 384.61, 382.90, 385.49, 382.02, 384.61 2007, 11, 39401, 2007.8740, -99.99, -99.99, 385.70, 385.76, 385.70, 385.76 2007, 12, 39431, 2007.9562, 386.22, 385.57, 386.69, 386.04, 386.22, 385.57 2008, 01, 39462, 2008.0410, 388.58, 387.05, 387.87, 386.34, 388.58, 387.05 2008, 02, 39493, 2008.1257, 388.68, 386.13, 389.18, 386.63, 388.68, 386.13 2008, 03, 39522, 2008.2049, 389.50, 386.27, 390.12, 386.89, 389.50, 386.27 2008, 04, 39553, 2008.2896, 392.00, 387.83, 391.33, 387.16, 392.00, 387.83 2008, 05, 39583, 2008.3716, 392.49, 388.12, 391.76, 387.39, 392.49, 388.12 2008, 06, 39614, 2008.4563, 388.99, 387.09, 389.50, 387.60, 388.99, 387.09 2008, 07, 39644, 2008.5383, 384.27, 387.08, 384.96, 387.77, 384.27, 387.08 2008, 08, 39675, 2008.6230, 380.14, 386.83, 381.24, 387.93, 380.14, 386.83 2008, 09, 39706, 2008.7077, 382.20, 388.32, 381.94, 388.06, 382.20, 388.32 2008, 10, 39736, 2008.7896, 383.48, 386.06, 385.58, 388.16, 383.48, 386.06 2008, 11, 39767, 2008.8743, 388.82, 388.88, 388.20, 388.25, 388.82, 388.88 2008, 12, 39797, 2008.9563, 389.85, 389.19, 388.97, 388.32, 389.85, 389.19 2009, 01, 39828, 2009.0411, 388.48, 386.93, 389.91, 388.36, 388.48, 386.93 2009, 02, 39859, 2009.1260, 390.99, 388.42, 390.95, 388.38, 390.99, 388.42 2009, 03, 39887, 2009.2027, 392.05, 388.82, 391.61, 388.39, 392.05, 388.82 2009, 04, 39918, 2009.2877, 393.16, 388.98, 392.56, 388.38, 393.16, 388.98 2009, 05, 39948, 2009.3699, 393.12, 388.70, 392.79, 388.37, 393.12, 388.70 2009, 06, 39979, 2009.4548, 390.21, 388.23, 390.35, 388.37, 390.21, 388.23 2009, 07, 40009, 2009.5370, 385.12, 387.88, 385.63, 388.39, 385.12, 387.88 2009, 08, 40040, 2009.6219, -99.99, -99.99, 381.73, 388.44, 381.73, 388.44 2009, 09, 40071, 2009.7068, 383.03, 389.22, 382.35, 388.54, 383.03, 389.22 2009, 10, 40101, 2009.7890, 384.49, 387.11, 386.05, 388.67, 384.49, 387.11 2009, 11, 40132, 2009.8740, 388.48, 388.55, 388.80, 388.86, 388.48, 388.55 2009, 12, 40162, 2009.9562, 389.53, 388.87, 389.74, 389.08, 389.53, 388.87 2010, 01, 40193, 2010.0411, 390.81, 389.25, 390.92, 389.36, 390.81, 389.25 2010, 02, 40224, 2010.1260, 391.61, 389.02, 392.25, 389.66, 391.61, 389.02 2010, 03, 40252, 2010.2027, 392.69, 389.44, 393.21, 389.96, 392.69, 389.44 2010, 04, 40283, 2010.2877, 394.56, 390.35, 394.52, 390.31, 394.56, 390.35 2010, 05, 40313, 2010.3699, 394.94, 390.49, 395.09, 390.64, 394.94, 390.49 2010, 06, 40344, 2010.4548, 393.25, 391.26, 392.96, 390.97, 393.25, 391.26 2010, 07, 40374, 2010.5370, 390.39, 393.16, 388.47, 391.25, 390.39, 393.16 2010, 08, 40405, 2010.6219, 384.49, 391.25, 384.73, 391.49, 384.49, 391.25 2010, 09, 40436, 2010.7068, 385.28, 391.51, 385.46, 391.70, 385.28, 391.51 2010, 10, 40466, 2010.7890, 390.56, 393.21, 389.22, 391.86, 390.56, 393.21 2010, 11, 40497, 2010.8740, 391.12, 391.19, 391.95, 392.02, 391.12, 391.19 2010, 12, 40527, 2010.9562, 392.28, 391.61, 392.82, 392.16, 392.28, 391.61 2011, 01, 40558, 2011.0411, 393.24, 391.67, 393.87, 392.30, 393.24, 391.67 2011, 02, 40589, 2011.1260, 394.93, 392.32, 395.05, 392.44, 394.93, 392.32 2011, 03, 40617, 2011.2027, 395.68, 392.41, 395.85, 392.58, 395.68, 392.41 2011, 04, 40648, 2011.2877, 396.13, 391.89, 396.97, 392.73, 396.13, 391.89 2011, 05, 40678, 2011.3699, 397.64, 393.16, 397.37, 392.89, 397.64, 393.16 2011, 06, 40709, 2011.4548, 395.20, 393.19, 395.06, 393.05, 395.20, 393.19 2011, 07, 40739, 2011.5370, 389.80, 392.60, 390.42, 393.21, 389.80, 392.60 2011, 08, 40770, 2011.6219, 386.66, 393.46, 386.57, 393.37, 386.66, 393.46 2011, 09, 40801, 2011.7068, 387.93, 394.21, 387.26, 393.53, 387.93, 394.21 2011, 10, 40831, 2011.7890, 390.57, 393.23, 391.02, 393.69, 390.57, 393.23 2011, 11, 40862, 2011.8740, 392.72, 392.78, 393.78, 393.84, 392.72, 392.78 2011, 12, 40892, 2011.9562, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99