C.isotope: Atmospheric carbon and D14C measurements

Description

Atmospheric \(\delta ^{14}\)C (per mille) and CO\(_2\) (ppm) measurements for La Jolla Pier, California. Latitude: 32.9 Degrees N, Longitude: 117.3 Degrees W, Elevation: 10m; \(\delta\) \(^{14}\)C derived from flask air samples

Usage

data(C.isotope)

Arguments

Format

A data frame with 280 observations on the following 5 variables.

Date: a factor with levels 01-Apr-96 01-Jul-92 01-Jul-93 02-Apr-01 02-Feb-96 02-Nov-94 02-Oct-92 03-Aug-06 03-Aug-92 03-Jan-95 03-Jan-97 03-Jul-95 03-Mar-93 03-May-05 03-May-96 03-Nov-05 04-Apr-94 04-Jun-01 04-Jun-03 04-Mar-03 04-May-01 04-May-07 04-Sep-96 05-Aug-96 05-Jul-05 05-Jun-00 05-Sep-00 06-Aug-02 06-Oct-06 06-Sep-01 06-Sep-07 07-Apr-05 07-Apr-95 07-Aug-07 07-Dec-07 07-Feb-01 07-Feb-03 07-Feb-05 07-Jun-07 07-Mar-01 07-Sep-05 08-Feb-94 08-Feb-95 08-Feb-99 08-Jan-01 08-Jun-95 08-Sep-99 09-Dec-01 09-Feb-93 09-Jan-02 09-Jun-04 09-Nov-00 09-Nov-02 09-Nov-06 09-Sep-02 09-Sep-03 09-Sep-92 10-Apr-03 10-Aug-01 10-Aug-97 10-Aug-99 10-Jan-98 10-Jun-02 10-Nov-95 10-Oct-00 10-Oct-04 10-Oct-97 11-Dec-92 11-Feb-00 11-Jan-07 11-Jan-93 11-Mar-94 11-Mar-96 11-Nov-93 11-Oct-02 12-Apr-93 12-Apr-99 12-Aug-93 12-Jul-02 12-Jun-06 12-Oct-07 13-Feb-98 13-Jan-98 13-Jun-01 13-Mar-95 13-May-02 13-Sep-06 14-Apr-00 14-Aug-00 14-Dec-98 14-Feb-03 14-Jul-00 14-Sep-04 15-Dec-93 15-Feb-06 15-Feb-95 15-May-95 15-Oct-99 16-Apr-96 16-Jul-01 16-Jun-00 16-Nov-03 16-Nov-99 16-Oct-95 17-Dec-02 17-Feb-02 17-Feb-97 17-Jul-06 17-Jul-07 17-Mar-06 17-May-94 17-Nov-99 18-Aug-00 18-Dec-92 18-Jul-97 18-Jun-05 18-Mar-03 18-May-93 18-Nov-94 19-Apr-05 20-Apr-04 20-Mar-00 21-Apr-06 21-Aug-95 21-Dec-04 21-Jan-00 21-Jul-99 21-Jun-02 21-Jun-93 22-Apr-97 22-Feb-00 22-Feb-96 22-Jan-96 22-Jun-94 22-Mar-02 22-May-06 22-May-98 23-Apr-98 23-Feb-07 23-Jul-92 23-Jun-97 23-Mar-01 23-Mar-05 24-Apr-03 24-Aug-94 24-Feb-93 24-Jul-01 24-Jul-02 24-Jun-03 24-Mar-04 25-Apr-02 25-Aug-98 25-Jan-06 25-Oct-96 26-Aug-04 26-Dec-03 26-Feb-04 26-Jan-05 26-Jan-99 26-Jun-96 26-Mar-04 26-May-00 26-May-04 26-Sep-95 27-Jul-04 27-Mar-07 27-Nov-96 27-Oct-05 28-Jul-04 28-Jul-05 29-Aug-03 29-Dec-02 29-Jul-98 29-Jun-98 29-Oct-92 29-Oct-98 30-Jun-97 30-Nov-93 31-Dec-99 31-Jan-04 31-Oct-01 31-Oct-03
Decimal.date: A numeric vector
CO2: CO\(_2\) concentration (in ppm)
D14C: \(\delta\) \(^{14}\)C (in per mille)
D14C.uncertainty: measurement uncertainty for D14C(in per mille)

References

H. D. Graven, T. P. Guilderson and R. F. Keeling, Observations of radiocarbon in CO\(_2\) at La Jolla, California, USA 1992-2007: Analysis of the long-term trend. Journal of Geophysical Research.