C.isotope {asbio} | R Documentation |
Atmospheric carbon and D14C measurements
Description
Atmospheric C (per mille) and CO
(ppm) measurements for La Jolla Pier, California. Latitude: 32.9 Degrees N, Longitude: 117.3 Degrees W, Elevation: 10m;
C derived from flask air samples
Usage
data(C.isotope)
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
concentration (in ppm)
D14C
C (in per mille)
D14C.uncertainty
measurement uncertainty for
D14C
(in per mille)
Source
H. D. Graven, R. F. Keeling, A. F. Bollenbacher
Scripps CO Program Scripps Institution of Oceanography (SIO)
University of California, La Jolla, California USA 92093-0244
and
T. P. Guilderson Center for Accelerator Mass Spectrometry (CAMS) Lawrence Livermore National Laboratory (LLNL) Livermore, California USA 94550
References
H. D. Graven, T. P. Guilderson and R. F. Keeling, Observations of radiocarbon
in CO at La Jolla, California, USA 1992-2007: Analysis of the long-term trend. Journal of Geophysical Research.