NDP-092A (2014)

ORNL/CDIAC-158

A high-frequency atmospheric and seawater pCO2 data set from 14 open ocean sites using a moored autonomous system

by Adrienne J. Sutton1,2, Christopher L. Sabine2, Jeremy T. Mathis2

Prepared by Alex Kozyr3

1Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, Washington, USA
2Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, Washington, USA
3Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

dataNDP-092A Moorings Data Files        PDF file Sutton, et al. 2014

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Abstract

In an intensifying effort to track ocean change and distinguish between natural and anthropogenic drivers, sustained ocean time-series measurements are becoming increasingly important. Advancements in the ocean carbon observation network over the last decade, such as the development and deployment of Moored Autonomous pCO2 (MAPCO2) systems, have dramatically improved our ability to characterize ocean climate, sea-air gas exchange, and biogeochemical processes. The MAPCO2 system provides high-resolution data that can measure inter-annual, seasonal, and sub-seasonal dynamics and constrain the impact of short-term biogeochemical variability on carbon dioxide (CO2) flux. Overall uncertainty of the MAPCO2 using in situ calibrations with certified gas standards and post-deployment standard operating procedures is less than 2 µatm for seawater partial pressure of CO2 (pCO2) and less than 1 µatm for air pCO2. The MAPCO2 maintains this level of uncertainty for over 400 days of autonomous operation. MAPCO2 measurements are consistent with ship-board seawater pCO2 measurements and GLOBALVIEW-CO2 boundary layer atmospheric values. Here we provide an open ocean MAPCO2 data set including 14 surface buoys from 2004 through 2011 and a description of the methods and data quality control involved. The climate quality data provided by the MAPCO2 has allowed for the establishment of open ocean observatories to track surface ocean pCO2 changes around the globe.

Further details are in Sutton, et al. 2014

Table 1. Surface ocean pCO2 mooring deployments including in this data set. Links are to each mooring data archive page at CDIAC.

Mooring Name Location Deployment Start Date Deployment End Date Total n1 of measurements Data Link Metadata Link
MOSEAN/WHOTS 22.8°N, 158.1°W 12/19/2004
05/29/2005
06/18/2006
01/28/2007
06/26/2007
06/05/2008
07/11/2009
08/01/2010
05/23/2005
01/20/2006
12/21/2006
07/30/2007
06/05/2008
02/12/2009
08/01/2010
07/13/2011
17645 Data MOSEAN Metadata

WHOTS Metadata
BTM 32°N, 64°W 10/02/2005
07/14/2006
03/13/2007
07/03/2006
03/02/2007
10/01/2007
5354 Data Metadata
Papa 50.12°N, 144.83°W 06/08/2007
06/11/2008
06/13/2009
06/16/2010
06/10/2008
11/11/2008
03/27/2010
06/13/2011
9235 Data Metadata
KEO 32.3°N, 144.5°E 09/28/2007
09/13/2008
09/05/2009
09/30/2010
08/08/2008
09/04/2009
09/24/2010
12/24/2010
9182 Data Metadata
JKEO 37.9°N, 146.5°E 02/18/2007 10/03/2007 1837 Data Metadata
CCE1 33.5°N, 122.5°W 11/11/2008
05/19/2009
12/15/2009
09/02/2010
02/06/2009
12/14/2009
09/01/2010
10/11/2010
4775 Data Metadata
Stratus 20°N, 85°W 10/16/2006
10/27/2007
10/26/2008
01/19/2010
10/29/2007
10/27/2008
01/18/2010
07/07/2010
10889 Data Metadata
TAO110W 0°N, 110°W 09/19/2009
03/15/2010
07/22/2010
11/03/2009
07/14/2010
10/28/2010
2148 Data Metadata
TAO125W 0.2°S, 124.4°W 05/08/2004
03/16/2005
01/31/200
04/13/2007
10/16/2007
11/13/2008
04/22/2010
12/20/2004
09/15/2005
07/08/2006
07/17/2007
11/10/2008
10/21/2009
11/06/2010
13609 Data Metadata
TAO140W 0°N, 140°W 05/23/2004
09/13/2004
03/02/2005
01/17/2006
09/14/2006
05/31/2007
05/10/2008
09/04/2009
11/26/2010
09/12/2004
03/01/2005
09/22/2005
05/14/2006
12/18/2006
11/20/2007
09/03/2009
01/30/2010
03/23/2011
14276 Data Metadata
TAO155W 0°N, 155°W 01/13/2010 08/25/2010 1791 Data Metadata
TAO170W 0°N, 170°W 07/04/2005
07/31/2007
08/26/2008
06/02/2009
02/03/2010
06/23/2006
08/13/2008
06/01/2009
12/12/2009
02/04/2011
12528 Data Metadata
TAO165E 0°N, 165°E 02/23/2010 02/27/2011 2955 Data Metadata
TAO165E8S 8°S, 165°E 06/22/2009
10/18/2010
09/19/2010
11/15/2011
6720 Data Metadata

1n = total # of surface seawater and marine boundary layer air CO2 measurements collected at each location.

Please cite this data set as:
Sutton, A.J., C.L. Sabine, J.T. Mathis and A. Kozyr. 2014. A high-frequency atmospheric and seawater pCO2 data set from 14 open ocean sites using a moored autonomous system. ORNL/CDIAC-158, NDP-092A. http://cdiac.ornl.gov/oceans/Moorings/ndp092.html Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, Tennessee. doi: 10.3334/CDIAC/OTG.TSM_NDP092 
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