Dense intermediate water outflow from the Cretan Sea: A salinity driven, recurrent phenomenon, connected to thermohaline circulation changes

Journal of Geophysical Research: Oceans

Volumn 119, Issue 8, 2014, Pages 4797-4820

  Velaoras, Dimitris ^a   Krokos, George ^a   Nittis, Kostas ^a   Theocharis, Alexander ^a  

^a INSTITUTE OF OCEANOGRAPHY   (Greece)

Author keywords

[No Author keywords available]

Indexed keywords

ACCUMULATION RATE; ATMOSPHERIC FORCING; DENSE WATER; INTERMEDIATE WATER; OUTFLOW; SALINITY; THERMOHALINE CIRCULATION; WATER MASS;

AEGEAN SEA; CRETAN SEA; MEDITERRANEAN SEA;

EID: 84920828123     PISSN: 21699275     EISSN: 21699291     Source Type: Journal    
DOI: 10.1002/2014JC009937     Document Type: Article

References (77)

1. Androulidakis, Y. S., V. H. Kourafalou, Y. N. Krestenitis, and V. Zervakis (2012). Variability of deep water mass characteristics in the North Aegean Sea: The role of lateral inputs and atmospheric conditions, Deep Sea Res., Part I, 67, 55-72, doi: 10.1016/j.dsr.2012.05.004.
2. Astraldi, M., S. Balopoulos, J. Candela, J. Font, M. Gacic, G.P. Gasparini, B. Manca, A. Theocharis, and J. Tintore (1999), The role of straits and channels in understanding the characteristics of Mediterranean circulation, Prog. Oceanogr., 44(1-3), 65-108, doi:10.1016/S0079-6611(99)00021-X.
3. Beuvier, J., F. Sevault, M. Herrmann, H. Kontoyiannis, W. Ludwig, M. Rixen, E. Stanev, K. Beranger, and S. Somot (2010), Modeling the Mediterranean Sea interannual variability during 1961-2000: Focus on the Eastern Mediterranean Transient, J. Geophys. Res., 115, C08017, doi:10.1029/2009JC005950.
4. Borzelli, G. L. E., M. Gacic, V. Cardin, and G. Civitarese (2009), Eastern Mediterranean transient and reversal of the Ionian Sea circulation, Geophys. Res. Lett, 36, L15108, doi:10.1029/2009GL039261.
5. Bruce, J. G., and H. Charnock (1965), Studies of winter sinking of cold water in the Aegean Sea. Rapp. Comm. Int. Mer. Medit., 18, 773-778.
6. Cardin, V., M. Gacic, K. Nittis, V. Kovacevic, and L. Perini (2003), Sub-inertial variability in the Cretan Sea from the M3A buoy, Ann. Geophys., 21(1), 89-102.
7. Criado-Aldeanueva, F., J. Del Rio Vera, and J. Garcia-Lafuente (2008), Steric and mass-induced Mediterranean sea level trends from 14 years of altimetry data, Global Planet. Change, 60(3-4), 563-575, doi:10.1016/j.gloplacha.2007.07.003.
8. Dee, D. P., et al. (2011), The ERA-Interim reanalysis: Configuration and performance of the data assimilation system, Q.J. R. Meteorol. Soc., 137, 553-597, doi:10.1002/qj.828.
9. Eronat, C, and E. Sayin (2014), Temporal evolution of the water characteristics in the bays along the eastern coast of the Aegean Sea: Saros, Izmir, and Gokova bays, Turk. J. Earth Sci., 23, 53-66, doi:10.3906/yer-1307-4.
10. Gacic M., G. L. Eusebi Borzelli, G. Civitarese, V. Cardin, and S. Yari (2010), Can internal processes sustain reversals of the ocean upper circulation? The Ionian Sea example. Geophys. Res. Lett., 37, L09608, doi:10.1029/2010GL043216.
11. Gacic, M., G. Civitarese, G. L. Eusebi Borzelli, V. Kovacevic, P.-M. Poulain, A. Theocharis, M. Menna, A. Catucci, and N. Zarokanellos (2011), On the relationship between the decadal oscillations of the Northern Ionian Sea and the salinity distributions in the Eastern Mediterranean, J. Geophys. Res., 116, C12002, doi:10.1029/2011JC007280.
12. Gacic, M., et al. (2014), Extreme winter 2012 in the Adriatic: An example of climatic impact on the BiOS rhythm, Ocean Sci., 10, 513-522, doi: 10.5194/os-10-513-2014.
13. Georgopoulos, D., A. Theocharis, and G. Zodiatis (1989), Intermediate water formation in the Cretan Sea (south Aegean Sea), Oceanol. Acta, 12(4), 353-359.
14. Gertman, I., N. Pinardi, Y. Popov, and A. Hecht (2006), Aegean Sea water masses during the early stages of the Eastern Mediterranean climatic transient (1988-90), J. Phys. Oceanogr., 36, 1841-1859, doi:10.1175/JPO2940.1.
15. Gertman, I., R. Goldman, T. Ozer, and G. Zodiatis (2013), Interannual changes in the thermohaline structure of the South Eastern Mediterranean, Rapp. Comm. Int. Mer Mediter., 40, 211.
16. Gill, A. (1982), Atmosphere-Ocean Dynamics, Int. Geophys. Ser., vol. 30, pp. 662, Academic, London.
17. Josey, S. A. (2003), Changes in the heat and freshwater forcing of the eastern Mediterranean and their influence on deep water formation, J. Geophys. Res., 108(C7), 3237, doi:10.1029/2003JC001778.
18. Josey, S. A., S. Somot, and M. Tsimplis (2011), Impacts of atmospheric modes of variability on Mediterranean Sea surface heat exchange, J. Geophys. Res., 116, C02032, doi:10.1029/2010JC006685.
19. Karageorgis, A. P., D. Georgopoulos, T. D. Kanellopoulos, O. A. Mikkelsen, K. Pagou, H. Kontoyiannis, A. Pavlidou, and C. Anagnostou (2012), Spatial and seasonal variability of particulate matter optical and size properties in the Eastern Mediterranean Sea, J. Mar. Syst., 105-108, 123-134, doi:10.1016/j.jmarsys.2012.07.003.
20. Kistler, R., et al. (2001), The NCEP-NCAR 50-year reanalysis: Monthly means CD-ROM and documentation, Bull. Am. Meteorol. Soc., 82, 247-267, doi:10.1175/1520-0477(2001)082<0247:TNNYRM>2.3.CO;2.
21. Klein, B., W. Roether, B.B. Manca, D. Bregant, V. Beitzel, V. Kovacevic, and A. Luchetta (1999), The large deep water transient in the Eastern Mediterranean. Deep Sea Res., Part I, 46(3), 371-414.
22. Kontoyiannis, H., A. Theocharis, E. Balopoulos, S. Kioroglou, V. Papadopoulos, M. Collins, A. F. Velegrakis, and A. Iona (1999a), Water fluxes through the Cretan Arc Straits, Eastern Mediterranean Sea: March 1994 to June 1995. Prog. Oceanogr., 44, 511-529.
23. Kontoyiannis, H., A. Theocharis, and K. Nittis (1999b), Structures and characteristics of newly formed water masses in the NW Levantine during 1986, 1992, 1995, In The Eastern Mediterranean as a Laboratory Basin for the Assessment of Contrasting Ecosystems, edited by P. Malanotte-Rizzoli and V. Eremeev, pp. 465-473, NATO ASI Ser., 51, Kluwer Acad., Netherlands.
24. Kontoyiannis, H., E. Balopoulos, O. Gotsis-Skretas, A. Pavlidou, G. Assimakopoulou, and E. Papageorgiou (2005), The hydrology and biochemistry of the Cretan Straits (Antikithira and Kassos Straits) revisited in the period June 1997-May 1998, J. Mar. Syst., 53(1), 37-57, doi:10.1016/j.jmarsys.2004.06.007.
25. Kontoyiannis, H., V. Papadopoulos, A. Kazmin, A. Zatsepin, and D. Georgopoulos (2012), Climatic variability of the sub-surface sea temperatures in the Aegean-Black Sea system and relation to meteorological forcing, Clim. Dyn., 39(6), 1507-1525, doi:10.1007/s00382-012-1370-8.
26. Kress, N., I. Gertman, and B. Herut (2013), Temporal evolution of physical and chemical characteristics of the water column in the Easternmost Levantine Basin (Eastern Mediterranean Sea) from 2002 to 2010, J. Mar. Syst., 135, 6-13, doi:10.1016/j.jmarsys.2013.11.016.
27. Krokos, G., D. Velaoras, G. Korres, L. Perivoliotis, and A. Theocharis (2014), On the continuous functioning of an internal mechanism that drives the Eastern Mediterranean thermohaline circulation: The recent activation of the Aegean Sea as a dense water source area, J. Mar. Syst., 129, 484-489, doi: 10.1016/j.jmarsys.2013.10.002.
28. Lacombe, H., P. Tchernia, and G. Benoist (1958), Contribution a l'etude hydrologique de la mer Egee en periode d'ete, Bull. Inf. COEC, 8, 454-468.
29. Lagouvardos, K., V. Kotroni, and G. Kallos (1998), An extreme cold surge over the Greek peninsula, Q. J. R. Meteorol. Soc, 124(551), 2299-2327.
30. Lascaratos, A., W. Roether, K, Nittis, and B. Klein (1999), Recent changes in the deep water formation and spreading in the Eastern Mediterranean Sea, Prog. Oceanogr., 44(1-3), 5-36.
31. Lykousis, V. (2001), Subaqueous bedforms on the Cyclades Plateau (NE Mediterranean)-evidence of Cretan Deep Water Formation?, Cont. Shelf Res., 21(5), 495-507, doi:10.1016/S0278-4343(00)00104-7.
32. Malanotte-Rizzoli, P., and A. R. Robinson (1988), POEM: Physical Oceanography of the Eastern Miditerranean, Eos Trans. AGU, 69(14), 194-203, doi:10.1029/88EO00125.
33. Malanotte-Rizzoli, P., et al. (1997), A synthesis of the Ionian hydrography, circulation and water mass pathways during POEM-Phase I, Prog. Oceanogr., 39, 153-204.
34. Malanotte-Rizzoli, P., B. B. Manca, M. Ribera D'Alcala, A. Theocharis, S. Brenner, G. Budillon, and E. Ozsoy (1999), The Eastern Mediterranean in the 80s and in the 90s: The big transition in the intermediate and deep circulations, Dyn. Atmos. Oceans, 29, 365-395.
35. Malanotte-Rizzoli, P., et al. (2014), Physical forcing and physical/biochemical variability of the Mediterranean Sea: A review of unresolved issues and directions for future research, Ocean Sci., 10, 281-322, doi:10.5194/os-10-281-2014.
36. Manca, B. B., G. Budillon, P. Scarazzato, and L. Ursella (2003), Evolution of dynamics in the eastern Mediterranean affecting water mass structures and properties in the Ionian and Adriatic Seas, J. Geophys. Res., 108(C9), 8102, doi:10.1029/2002JC001664.
37. Manca, B. B., V. Ibello, M. Pacciaroni, P. Scarazzato, and A. Giorgetti (2006), Ventilation of deep waters in the Adriatic and Ionian Seas following changes in thermohaline circulation of the Eastern Mediterranean, Clim. Res., 31(2-3), 239-256, doi:10.3354/cr031239.
38. MEDAR (Mediterranean Data Archeology and Rescue) Group (2002), MEDATLAS/2002 database: Mediterranean and Black Sea database of temperature salinity and bio-chemical parameters, Climatological Atlas, in IFREMER Ed. (4 Cdroms).
39. Mihanovic, H., et al. (2013), Exceptional dense water formation on the Adriatic shelf in the winter of 2012, Ocean Sci., 9, 561-572, doi: 10.5194/os-9-561-2013.
40. Millot, C. (2013), Levantine intermediate water characteristics: An astounding general misunderstanding!, Sci. Mar., 77(2), 217-232, doi: 10.3989/scimar.03518.13A.
41. Millot, C, and I. Taupier-Letage (2005), Circulation in the Mediterranean sea, in The Mediterranean Sea, vol. 5K: Handbook of Environmental Chemistry, edited by A. Saliot, pp. 29-66, Springer, Berlin, doi:10.1007/b107143.
42. Nittis, K., A. Lascaratos, and A. Theocharis (2003), Dense water formation in the Aegean Sea: Numerical simulations during the Eastern Mediterranean Transient, J. Geophys. Res., 108(C9), 8120, doi:10.1029/2002JC001352.
43. Nykjaer, L. (2009), Mediterranean Sea surface warming 1985-2006, Clim. Res., 39, 11-17, doi:10.3354/cr00794.
44. Ozturgut, E. (1976), The sources and spreading of the Levantine Intermediate Water in the eastern Mediterranean, Rep. SM-92, Saclant ASW Res. Cent., La Spezia, Italy.
45. Pinardi, N., et al. (2014), Mediterranean Sea large-scale low-frequency ocean variability and water mass formation rates from 1987 to 2007: A retrospective analysis, Prog. Oceanogr., doi:10.1016/j.pocean.2013.11.003, in press.
46. Poulain, P. M., M. Menna, and E. Mauri (2012), Surface geostrophic circulation of the Mediterranean sea derived from drifter and satellite altimeter data, J. Phys. Oceanogr., 42(6), doi:10.1175/JPO-D-11-0159.1.
47. Robinson, A.R., and M. Golnaraghi (1994), The physical and dynamical oceanography of the Mediterranean Sea, In Ocean Processes in Climate Dynamics: Global and Mediterranean Examples, edited by P. Malanotte-Rizzoli and A. M. Robinson, pp. 255-306, NATO ASI Ser. 419, Springer, Netherlands, doi:10.1007/978-94-011-0870-6-12.
48. Robinson, A. R., and Leslie, W. G., Theocharis A., and A. Lascaratos (2001), Mediterranean Sea Circulation, In Encyclopedia of Ocean Sciences, edited by J. H. Steele, pp. 1689-1705, Academic, Oxford, U. K., doi:10.1006/rwos.2001.0376.
49. Roether, W., B. B. Manca, B. Klein, D. Bregant, D. Georgopoulos, V. Beitzel, V. Kovacevic, and A. Luchetta (1996), Recent changes in Eastern Mediterranean deep waters, Science, 271, 333-335.
50. Roether, W., V. Beitzel, J. Sultenfuß, and A. Putzka (1999), The Eastern Mediterranean tritium distribution in 1987, J. Mar. Syst., 20(1), 49-61.
51. Roether, W., B. Klein, B. B. Manca, A. Theocharis, and S. Kioroglou (2007), Transient Eastern Mediterranean deep waters in response to the massive dense-water output of the Aegean Sea in the 1990s, Prog. Oceanogr., 74(4), 540-571, doi:10.1016/j.pocean.2007.03.001.
52. Romanou, A., G. Tselioudis, C. S. Zerefos, C. A. Clayson, J. A. Curry, and A. Andersson (2010), Evaporation-precipitation variability over the Mediterranean and the Black Seas from Satellite and Reanalysis Estimates, J. Clim., 23(19), 5268-5287, doi:10.1175/2010JCLI3525.1.
53. Romanski, J., A. Romanou, M. Bauer, and G. Tselioudis (2014), Teleconnections, midlatitude cyclones and Aegean Sea turbulent heat flux variability on daily through decadal time scales, Reg. Environ. Change, doi:10.1007/s10113-013-0545-0, in press.
54. Sayin, E., C. Eronat, Ş. Uçkaç, and Ş. T. Beşiktepe (2011), Hydrography of the eastern part of the Aegean Sea during the Eastern Mediterranean Transient (EMT), J. Mar. Syst., 88(4), 502-515, doi:10.1016/j.jmarsys.2011.06.005.
55. Schroeder, K., et al. (2013), Long-term monitoring programme of the hydrological variability in the Mediterranean Sea: A first overview of the HYDROCHANGES network, Ocean Sci., 9, 301-324, doi:10.5194/os-9-301-2013.
56. Schlitzer, R., W. Roether, H. Oster, H. G. Junghans, M. Hausmann, H. Johannsen, and A. Michelato (1991), Chlorofluoromethane and oxygen in the Eastern Mediterranean, Deep Sea Res., Part A, 38(12), 1531-1551.
57. Skliris, N., and A. Lascaratos (2004), Impacts of the Nile River damming on the thermohaline circulation and water mass characteristics of the Mediterranean Sea, J. Mar. Syst., 52, 121-143, doi:10.1016/j.jmarsys.2004.02.005.
58. Skliris, N., S. Sofianos, and A. Lascaratos (2007), Hydrological changes in the Mediterranean Sea in relation to changes in the freshwater budget: A numerical modelling study, J. Mar. Syst., 65, 400-416, doi:10.1016/j.jmarsys.2006.01.015.
59. Skliris, N., S. Sofianos, A. Gkanasos, A. Mantziafou, V. Vervatis, P. Axaopoulos, and A. Lascaratos (2012), Decadal scale variability of sea surface temperature in the Mediterranean Sea in relation to atmospheric variability. Ocean Dyn., 62, 13-30, doi:10.1007/s10236-011-0493-5.
60. Theocharis, A., D. Georgopoulos, A. Lascaratos, and K. Nittis (1993), Water masses and circulation in the central region of the Eastern Mediterranean: Eastern Ionian, South Aegean, and Northwest Levantine, 1986-1987, Deep Sea Res., Part II, 40(6), 1121-1142.
61. Theocharis, A., E. Balopoulos, S. Kioroglou, H. Kontoyiannis, and A. Iona (1999a), A synthesis of the circulation and hydrography of the South Aegean Sea and the Straits of the Cretan Arc (March 1994-January 1995), Prog. Oceanogr., 44, 469-509.
62. Theocharis, A., K. Nittis, H. Kontoyiannis, E. Papageorgiou, and E. Balopoulos (1999b), Climatic changes in the Aegean Sea influence the Eastern Mediterranean thermohaline circulation (1986-1997), Geophys. Res. Lett., 26(11), 1617-1620, doi:10.1029/1999GL900320.
63. Theocharis, A., B. Klein, K. Nittis, and W. Roether (2002a), Evolution and status of the Eastern Mediterranean transient (1997-1999), J. Mar. Syst., 33-34, 91-116. doi:10.1016/S0924-7963(02)00054-4.
64. Theocharis, A., A. Lascaratos, and S. Sofianos (2002b), Variability in the sea water properties in the Ionian, Cretan and Levantine Seas during the last century, in Tracking Long Term Hydrological Changes in the Mediterranean Sea, edited by F. Briand, CIESM Workshop Ser., vol. 16, pp. 71-74, Mediterranean Sci. Comm., Monaco.
65. Theocharis, A., G. Krokos, D. Velaoras and G. Korres (2014), An internal mechanism driving the alternation of the Eastern Mediterranean dense/deep water sources, In The Mediterranean Sea: Temporal Variability and Spatial Patterns, edited by G. L. E. Borzelli, et al., AGU Geophys. Monogr. Ser., 202, pp. 113-137, John Wiley, Oxford, U. K., doi:10.1002/9781118847572.ch8.
66. Tselepidaki, I., B. Zarifis, and D. N. Asimakopoulos (1992), Low precipitation over Greece during 1989-1990, Theor. Appl. Climatol., 46(2-3), 115-121.
67. Tsimplis, M. N., A. F. Velegrakis, P. Drakopoulos, A. Theocharis, and M. B. Collins (1999), Cretan deep water outflow into the eastern Mediterranean, Prog. Oceanogr., 44(4), 531-551.
68. UNESCO (United Nations Educational, Scientific and Cultural Organization) (1983), Algorithms for computation of fundamental properties of seawater, UNESCO Tech. Pap. Mar. Sci., 44, pp. 53.
69. Velaoras, D. (2008), Interannual changes in circulation and water mass characteristics in the North and Central Aegean Sea and deep water formation in the Aegean Sea [in Greek], PhD Thesis, Natl. and Kapodistrian Univ. of Athens, Greece.
70. Velaoras, D. and A. Lascaratos (2010), North-Central Aegean Sea surface and intermediate water masses and their role in triggering the Eastern Mediterranean Transient, J. Mar. Syst., 83, 58-66, doi: 10.1016/j.jmarsys.2010.07.001.
71. Velaoras, D., D. Kassis, L. Perivoliotis, P. Pagonis, A. Hondronasios and K. Nittis (2013), Temperature and salinity variability in the Greek Seas based on POSEIDON stations time series: Preliminary results, Mediter. Mar. Sci., 14(3), 5-18, doi:10.12681/mms.446.
72. Vervatis, V. D., S. Sofianos, and A. Theocharis (2011), Distribution of the thermohaline characteristics in the Aegean Sea related to water mass formation processes (2005-2006 winter surveys), J. Geophys. Res., 116, C09034, doi:10.1029/2010JC006868.
73. Vervatis, V. D., S. S. Sofianos, N. Skliris, S. Somot, A. Lascaratos, and M. Rixen (2013), Mechanisms controlling the thermohaline circulation pattern variability in the Aegean-Levantine region, A hindcast simulation (1960-2000) with an eddy resolving model, Deep Sea Res., Part I, 74, 82-97, doi:10.1016/j.dsr.2012.12.011.
74. Zervakis, V., D. Georgopoulos, and P.G. Drakopoulos (2000), The role of the North Aegean in triggering the recent Eastern Mediterranean climatic changes, J. Geophys. Res., 105(C11), 26103-26126.
75. Zodiatis, G. (1991a), The hydrological conditions and the circulation in the Cretan Sea during late summer 1987, Ann. Geophys., 9, 233-238.
76. Zodiatis, G. (1991b), Water masses and deep convection in the Cretan Sea during late winter 1987, Ann. Geophys., 9, 367-376.
77. Zodiatis, G. (1993), Circulation of the Cretan Sea water masses (Eastern Mediterranean Sea). Oceanol. Acta, 16(2), 107-114.