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Bégovic, Miléna; Copin-Montégut, Claire (2002): Underway measurements of pCO2 in surface water and in air during DYFAMED cruises. PANGAEA, https://doi.org/10.1594/PANGAEA.738578, Supplement to: Bégovic, M; Copin-Montégut, C (2002): Processes controlling annual variations in the partial pressure of CO2 in surface waters of the central northwestern Mediterranean Sea (Dyfamed site). Deep Sea Research Part II: Topical Studies in Oceanography, 49(11), 2031-2047, https://doi.org/10.1016/S0967-0645(02)00026-7

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Abstract:
Measurements of the partial pressure of CO2 (pCO2) in surface waters, and other water properties were performed monthly during a 2-year period from February 1998 through February 2000, at a station in the open northwestern Mediterranean Sea (Dyfamed Station). On seasonal timescale, the pCO2 minimum of 300 µatm in winter was followed by an increase of 120 ?atm (pCO2 reaching 420 µatm) related to warming of surface waters in summer. Estimates of the underlying processes (mixing, biological activity and air–sea gas exchange) governing the monthly variations of the upper layer pCO2 were obtained from observed variations in total inorganic carbon content (TCO2) in the surface, and from the vertical distribution of physical parameters and TCO2. Monthly variations in TCO2 due to gas exchange were determined from wind speed and from the air-sea pCO2 gradient. The impact of biological activity was estimated from the difference between the observed variations in TCO2 and the evaluations of air–sea exchange and carbon supply by physical processes. Mixing at the base of the mixed layer counteracts the late winter to summer TCO2 drawdown (about 80 mmol/m**3) due to a net organic production of about 100 mmol/m**3. The carbon consumption continues until early summer despite the absence of nutrients in the upper layer from April or May. The net carbon production in the mixed layer during the warming period exceeds by a factor of 1.6 the carbon production deduced from nitrate fluxes and using the usual Redfield C:N ratio of 6.6:1. The TCO2 increase during the autumn is primarily associated with convective vertical mixing induced by upper layer cooling and deepening. On the other hand, the contribution of air–sea gas exchange to TCO2 variations remains relatively small aside from summer months, when the CO2 oversaturation is high and the mixed layer is only 15-20 m depth.
Coverage:
Median Latitude: 43.491542 * Median Longitude: 7.652468 * South-bound Latitude: 42.566700 * West-bound Longitude: 7.273800 * North-bound Latitude: 43.737100 * East-bound Longitude: 8.941460
Date/Time Start: 1998-02-05T10:28:00 * Date/Time End: 2000-02-22T19:50:00
Event(s):
DYFAMED_pump_0100 * Latitude Start: 43.695300 * Longitude Start: 7.283400 * Latitude End: 43.695500 * Longitude End: 7.283600 * Date/Time Start: 2000-01-30T07:12:00 * Date/Time End: 2000-01-30T19:51:00 * Campaign: DYFAMED * Basis: Time-series station * Method/Device: Multi pump (MUP)
DYFAMED_pump_0199 * Latitude Start: 43.730100 * Longitude Start: 7.432800 * Latitude End: 43.736700 * Longitude End: 7.425000 * Date/Time Start: 1999-01-26T06:02:00 * Date/Time End: 1999-01-26T14:15:00 * Campaign: DYFAMED * Basis: Time-series station * Method/Device: Multi pump (MUP)
DYFAMED_pump_0200 * Latitude Start: 43.696000 * Longitude Start: 7.283100 * Latitude End: 43.676900 * Longitude End: 7.293000 * Date/Time Start: 2000-02-22T06:40:00 * Date/Time End: 2000-02-22T19:50:00 * Campaign: DYFAMED * Basis: Time-series station * Method/Device: Multi pump (MUP)
Size:
40 datasets

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Datasets listed in this publication series

  1. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 01/1999. https://doi.org/10.1594/PANGAEA.183938
  2. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 01/2000. https://doi.org/10.1594/PANGAEA.183937
  3. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 02/1999. https://doi.org/10.1594/PANGAEA.183941
  4. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 02/2000. https://doi.org/10.1594/PANGAEA.183939
  5. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 03/1998. https://doi.org/10.1594/PANGAEA.183942
  6. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 03/1999. https://doi.org/10.1594/PANGAEA.183943
  7. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 04/1998. https://doi.org/10.1594/PANGAEA.183944
  8. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 04/1999. https://doi.org/10.1594/PANGAEA.183945
  9. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 05/1999. https://doi.org/10.1594/PANGAEA.183946
  10. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 06/1998. https://doi.org/10.1594/PANGAEA.183947
  11. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 06/1999. https://doi.org/10.1594/PANGAEA.183948
  12. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 07/1998. https://doi.org/10.1594/PANGAEA.183949
  13. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 08/1998. https://doi.org/10.1594/PANGAEA.183950
  14. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 09/1998. https://doi.org/10.1594/PANGAEA.183951
  15. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 10/1998. https://doi.org/10.1594/PANGAEA.183952
  16. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 10/1999. https://doi.org/10.1594/PANGAEA.183953
  17. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 11/1999. https://doi.org/10.1594/PANGAEA.183954
  18. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 12/1998. https://doi.org/10.1594/PANGAEA.183955
  19. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in air during cruise DYFAMED 12/1999. https://doi.org/10.1594/PANGAEA.183956
  20. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 01/1999. https://doi.org/10.1594/PANGAEA.183958
  21. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 01/2000. https://doi.org/10.1594/PANGAEA.183957
  22. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 02/1998. https://doi.org/10.1594/PANGAEA.183960
  23. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 02/1999. https://doi.org/10.1594/PANGAEA.183978
  24. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 02/2000. https://doi.org/10.1594/PANGAEA.183959
  25. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 03/1998. https://doi.org/10.1594/PANGAEA.183962
  26. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 03/1999. https://doi.org/10.1594/PANGAEA.183963
  27. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 04/1998. https://doi.org/10.1594/PANGAEA.183964
  28. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 04/1999. https://doi.org/10.1594/PANGAEA.183965
  29. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 05/1998. https://doi.org/10.1594/PANGAEA.183979
  30. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 05/1999. https://doi.org/10.1594/PANGAEA.183967
  31. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 06/1998. https://doi.org/10.1594/PANGAEA.183968
  32. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 06/1999. https://doi.org/10.1594/PANGAEA.183969
  33. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 07/1998. https://doi.org/10.1594/PANGAEA.183970
  34. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 08/1998. https://doi.org/10.1594/PANGAEA.183971
  35. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 09/1999. https://doi.org/10.1594/PANGAEA.183972
  36. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 10/1998. https://doi.org/10.1594/PANGAEA.183973
  37. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 10/1999. https://doi.org/10.1594/PANGAEA.183974
  38. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 11/1999. https://doi.org/10.1594/PANGAEA.183975
  39. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 12/1998. https://doi.org/10.1594/PANGAEA.183976
  40. Bégovic, M; Copin-Montégut, C (2002): Underway measurements of pCO2 in surface water during cruise DYFAMED 12/1999. https://doi.org/10.1594/PANGAEA.183977