Advertisement

Submarine groundwater discharge revealed by 224Ra and 223Ra in Coffs Harbour, Australia

  • Paula Gómez-Álvarez
  • Bronte Bates
  • Isaac R. Santos
  • Rogger Escobar Correa
  • James P. Tucker
  • Nizam Ibrahim
  • Dylan Laicher-Edwards
  • Kristen Gardner
  • Luciana Silva Monteiro
  • Daniela A. Silva
  • Jacob R. Bowtell
  • Huang An Lin
  • Nathaniel L. Tolentino
  • Christian J. SandersEmail author
Article
  • 36 Downloads

Abstract

Submarine groundwater discharge (SGD) is an important link between the land and ocean. In this study, eddy diffusivity coefficients (Kh) and SGD rates were examined off the Jetty Beach in Coffs Harbour (Australia) in September 2017 and 2018. In order to estimate Kh, the apparent age and SGD, two short-lived radium isotopes 224Ra and 223Ra were measured along a shore-perpendicular transect and beach groundwater. Estimated SGD rates were 3.3 and 5.4 cm day−1 in 2017 and 12.7 and 9.3 cm day−1 in 2018, based on average 224Ra and 223Ra groundwater endmember activities. The SGD flow was higher in 2018 due to the combination of a spring tide and rainfall events that took place prior to sampling.

Keywords

SGD 224Ra 223Ra 

Notes

Acknowledgements

This study is was conducted as the field work component of the course “Frontiers in Marine Science II—Physical and Chemical Oceanography” at Southern Cross University, National Marine Science Center in 2017 and 2018. CJS was supported by the Australian Research Council (DE160100443) and PGA was supported by the “la Caixa” Fellowship for Post-Graduate Studies, “La Caixa” Banking Foundation (LCF/BQ/AA17/11610004).

Compliance with ethical standards

Conflicts of interest

There were no conflicts of interest in this research (financial or non-financial).

References

  1. 1.
    Moore WS (2010) Annu Rev Mar Sci 2:59–88CrossRefGoogle Scholar
  2. 2.
    Attisano KK, Santos IR, de Andrade CFF, de Paiva ML, Milani ICB, Niencheski LFH (2013) Braz J Oceanogr 61:195–200CrossRefGoogle Scholar
  3. 3.
    Santos IR, Burnett WC, Chanton J, Mwashote B, Suryaputra IGNA, Dittmar T (2008) Limnol Oceanogr 53:705–718CrossRefGoogle Scholar
  4. 4.
    Niencheski LFH, Windom HL, Moore WS, Jahnke RA (2007) Mar Chem 106:546–561CrossRefGoogle Scholar
  5. 5.
    Chen X, Zhang F, Lao Y, Wang X, Du J, Santos IR (2018) J Geophys Res Oceans 123:6962–6979CrossRefGoogle Scholar
  6. 6.
    Santos IR, Dimova N, Peterson RN, Mwashote B, Chanton J, Burnett WC (2009) Mar Chem 113:137–147CrossRefGoogle Scholar
  7. 7.
    Stewart BT, Santos IR, Tait D, Macklin PA, Maher DT (2015) Mar Chem.  https://doi.org/10.1016/j.marchem.2015.03.019 Google Scholar
  8. 8.
    Sanders CJ, Santos IR, Barcellos R, Silva Filho EV (2012) Cont Shelf Res 43:86–94CrossRefGoogle Scholar
  9. 9.
    Santos IR, Eyre BD, Huettel M (2012) Estuar Coast Shelf Sci 98:1–15CrossRefGoogle Scholar
  10. 10.
    Chawla D, Jacob N, Mohokar HV (2014) J Radioanal Nucl Chem 300:29–32CrossRefGoogle Scholar
  11. 11.
    Moore WS (2000) Cont Shelf Res 20:1993–2007CrossRefGoogle Scholar
  12. 12.
    Burnett WC, Peterson R, Moore WS, de Oliveira J (2008) Estuar Coast Shelf Sci 76:501–511CrossRefGoogle Scholar
  13. 13.
    Moore WS, Arnold R (1996) J Geophys Res C: Oceans 101:1321–1329CrossRefGoogle Scholar
  14. 14.
    (BOM) Bureau of Meteorology (2017) Climate statistics for Australian locations. Coffs Harbour Meteorological Office. http://www.bom.gov.au
  15. 15.
    (BOM) Bureau of Meteorology (2018) Climate statistics for Australian locations. Coffs Harbour Meteorological Office. http://www.bom.gov.au
  16. 16.
    Garcia-Solsona E, Garcia-Orellana J, Masqué P, Dulaiova H (2008) Mar Chem 109:198–219CrossRefGoogle Scholar
  17. 17.
    Peterson RN, Burnett WC, Taniguchi M, Chen J, Santos IR, Ishitobi T (2008) J Geophys Res C Oceans 113(9):C09021Google Scholar
  18. 18.
    Dulaiova H, Burnett WC (2008) Mar Chem 109:395–408CrossRefGoogle Scholar
  19. 19.
    Men W, Wang F, Zhang Y, He J, Yu W, Li Y (2013) J Radioanal Nucl Chem 295:89–94CrossRefGoogle Scholar
  20. 20.
    Swarzenski PW, Izbicki JA (2009) Estuar Coast Shelf Sci 83:77–89CrossRefGoogle Scholar
  21. 21.
    Sadat-Noori M, Santos IR, Tait DR, Reading MJ, Sanders CJ (2017) J Hydrol 553:188–198CrossRefGoogle Scholar
  22. 22.
    Michael HA, Charette MA, Harvey CF (2011) Mar Chem 127:100–114CrossRefGoogle Scholar
  23. 23.
    Wang X, Li H, Zheng C, Yang J, Zhang Y, Zhang M, Qi Z, Xiao K, Zhang X (2018) Geochim et Cosmochim Acta 225:52–65CrossRefGoogle Scholar
  24. 24.
    Wang X, Li H, Yang J, Zheng C, Zhang Y, An A, Zhang M, Xiao K (2017) J Hydrol 551:784–792CrossRefGoogle Scholar
  25. 25.
    Tait DR, Maher DT, Sanders CJ, Santos IR (2017) Geochim et Cosmochim Acta 200:295–309CrossRefGoogle Scholar
  26. 26.
    Li X, Hu BX, Burnett WC, Santos IR, Chanton JP (2009) Ground Water 47:558–568CrossRefGoogle Scholar
  27. 27.
    Sadat-Noori M, Santos IR, Sanders CJ, Sanders LM, Maher DT (2015) J Hydrol 528:703–719CrossRefGoogle Scholar
  28. 28.
    Michael HA, Mulligan AE, Harvey CF (2005) Nature 436:1145–1148CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Paula Gómez-Álvarez
    • 1
  • Bronte Bates
    • 1
  • Isaac R. Santos
    • 1
  • Rogger Escobar Correa
    • 1
  • James P. Tucker
    • 1
  • Nizam Ibrahim
    • 1
  • Dylan Laicher-Edwards
    • 1
  • Kristen Gardner
    • 1
  • Luciana Silva Monteiro
    • 1
  • Daniela A. Silva
    • 1
  • Jacob R. Bowtell
    • 1
  • Huang An Lin
    • 1
  • Nathaniel L. Tolentino
    • 1
  • Christian J. Sanders
    • 1
    Email author return OK on get
  1. 1.National Marine Science Centre, School of Environment, Science and EngineeringSouthern Cross UniversityCoffs HarbourAustralia

Personalised recommendations