Using Ra to estimate eddy diffusivity and submarine groundwater discharge in Laizhou Bay, China

Wang, Xuejing; Li, Hailong; Luo, Xin; Jiao, JiuJiu; Qu, Wenjing; Wang, Chaoyue
May 2016
Journal of Radioanalytical & Nuclear Chemistry;May2016, Vol. 308 Issue 2, p403
Academic Journal
The short-lived Ra isotope was measured in coastal water samples from Laizhou Bay, China using a radium delayed coincidence counting system. Based on the horizontal distribution of Ra and a mixing model, the horizontal eddy diffusion coefficient was estimated to be 253.1 × 10 and 56.5 × 10 m/d for the surface and middle layers, respectively. The submarine groundwater discharge (SGD) into the bay was estimated on the basis of the Ra mass balance model. The estimate of the SGD into the bay is 4.2 × 10 m/d, approximately six times the annual average flux of the Yellow River.


Related Articles

  • Radium Sampling Methods and Residence Times in St. Andrew Bay, Florida. Eller, Kirstin; Burnett, William; Fitzhugh, Linda; Chanton, Jeffrey // Estuaries & Coasts;Jan2014, Vol. 37 Issue 1, p94 

    Activity ratios (AR) of radium isotopes have been used with success to constrain estimates of water ages and to approximate residence times in coastal waters. We compared two common radium sampling methods (grab sampling and stationary moorings) to estimate water ages and the residence time of...

  • The Once and Future Wetlands: Hydrologic Restoration at Two Sites in Coastal North Carolina. Miller, Christine // National Wetlands Newsletter;Mar/Apr2012, Vol. 34 Issue 2, p20 

    The article focuses on hydrologic restoration in North Carolina. It discusses the North River Farms project and Mattamuskeet Drainage Association through the efforts of the North Carolina Coastal Federation which aims to restore hydrology on drained farm lands in the area and benefit coastal...

  • Variabilidad espacial y balance de fosfatos sobre la plataforma continental de la región fronteriza occidental México-EUA. Segovia-Zavala, J. A.; Delgadillo-Hinojosa, F.; Muñoz-Barbosa, A.; Huerta-Díaz, 1, M. A.; Gutiérrez-Galindo, E. A.; Canino-Herrera, S. R.; Hernández-Ayón, J. M. // Ciencias Marinas;sep2007, Vol. 33 Issue 3, p229 

    A cruise was conducted along the northwestern coast of Baja California, off the US-Mexico border region, to determine the physical, biological and anthropogenic factors affecting the concentration and distribution of phosphates (PO43-). The vertical distribution of temperature and PO43- showed...

  • Structural Degradation in Mediterranean Sea Food Webs: Testing Ecological Hypotheses Using Stochastic and Mass-Balance Modelling. Coll, Marta; Lotze, Heike K.; Romanuk, Tamara N. // Ecosystems;Sep2008, Vol. 11 Issue 6, p939 

    Human-mediated disturbances such as fishing, habitat modification, and pollution have resulted in significant shifts in species composition and abundance in marine ecosystems which translate into degradation of food-web structure. Here, we used a comparative ecological modelling approach and...

  • Progress reports, Glaciers. Evans, D.J.A. // Progress in Physical Geography;Dec2000, Vol. 24 Issue 4, p579 

    I Glaciology and glacial processes, For those who are interested in the health of glaciers, Geografiska Annaler Volume 81A, Part 4 (Jansson et al., 1999) is especially for you. This special issue is entitled ‘Methods of mass balance measurements and modelling’ and contains a diverse...

  • Glacier mass balance: the first 50 years of international monitoring. Braithwaite, Roger J. // Progress in Physical Geography;Mar2002, Vol. 26 Issue 1, p76 

    The paper reviews measurements of glacier mass balance in the period 1946-95. There are data for 246 glaciers but most records are quite short. The available mass-balance data are biased to Western Europe, North America and the former USSR with too few measurements from other parts of the world....

  • Correction. Day, J. J.; Bamber, J. L.; Valdes, P. J.; Kohler, J. // Cryosphere;2012, Vol. 6 Issue 1, p141 

    A correction to the article "The impact of a seasonally ice free Arctic Ocean on the temperature, precipitation and surface mass balance of Svalbard" that was published January 2012 issue is presented.

  • "Region-wide glacier mass balances over the Pamir-Karakoram-Himalaya during 1999-2011"published in The Cryosphere, 7, 1263-1286, 2013.  // Cryosphere;2013, Vol. 7 Issue 6, p1885 

    A correction to the article "Region-wide glacier mass balances over the Pamir-Karakoram-Himalaya during 1999-2011" that was published in the 2013 issue is presented.

  • Improved GRACE regional mass balance estimates of the Greenland Ice Sheet cross-validated with the input-output method. Xu, Z.; Schrama, E.; van der Wal, W.; van den Broeke, M.; Enderlin, E. M. // Cryosphere Discussions;2015, Vol. 9 Issue 5, p4661 

    In this study, we use satellite gravimetry data from the Gravity Recovery and Climate Experiment (GRACE) to estimate regional mass changes of the Greenland ice sheet (GrIS) and neighbouring glaciated regions using a least-squares inversion approach. We also consider results from the input-output...

  • Reconstructing glacier mass balances in the Central Andes of Chile and Argentina using local and regional hydro-climatic data. Masiokas, M. H.; Christie, D. A.; Le Quesne, C.; Pitte, P.; Ruiz, L.; Villalba, R.; Luckman, B. H.; Berthier, E.; Nussbaumer, S. U.; González-Reyes, A.; McPhee, J.; Barcaza, G. // Cryosphere Discussions;2015, Vol. 9 Issue 5, p4949 

    Despite the great number and variety of glaciers in southern South America, in situ glacier mass balance records are extremely scarce and glacier-climate relationships are still poorly understood in this region. Here we use the longest (> 35 years) and most complete in situ mass balance record,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics