Towards detecting fresh submarine groundwater discharge at the Laizhou Bay (Southern Bohai Sea, China) by remote sensing methods

Xing, Qianguo and Braga, Federica and Tosi, Luigi and Lou, Mingjing and Wu, Lingling and Tang, Cheng and Zaggia, Luca and Teatini, Pietro (2014) Towards detecting fresh submarine groundwater discharge at the Laizhou Bay (Southern Bohai Sea, China) by remote sensing methods. In: Dragon 3 Mid-Term Results Symposium, 26–29 May 2014, Chengdu, P.R. China.

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Abstract

Low-salinity groundwater reserves beneath the sea bottom and submarine groundwater discharges (SGD)are of great importance in the use and management of coastal water resource. A preliminary hydro- morphogeologic analysis allows for considering the presence of low-salinity groundwater in the offshore of the Laizhou Bay (Southern Bohai Sea, China). In order to detect the potential SGD the analysis of the Sea Surface Temperature (SST) anomalies has been carried out by Landsat images in the seasons when seawater and groundwater are characterised by the largest difference in temperature. The main outcomes of the study are the following. At the nearshore scale, along the intertidal zone of the Southern bay, where the unconfined aquifer discharges, patchy cold water anomalies occur,approximately in the same positions in different tide conditions. At the embayment scale in the Eastern Laizhou Bay where the confined aquifer is likely exposed, cold water anomalies are spread out.

Item Type: Conference or Workshop Item (Paper)
Additional Information: ESA SP-724, November 2014
Uncontrolled Keywords: offshore low-salinity groundwater, submarine groundwater discharges, Sea Surface Temperature (SST) anomalies, Laizhou Bay, China
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia
500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.4 Geomorfologia e idrosfera
500 Scienze naturali e Matematica > 550 Scienze della Terra > 555 Scienze della terra – Asia (Classificare qui la Geologia, i rilevamenti geologici, la stratigrafia dell’Asia)
Depositing User: Dr Luigi Tosi
Date Deposited: 15 Feb 2016 15:58
Last Modified: 15 Feb 2016 15:58
URI: http://eprints.bice.rm.cnr.it/id/eprint/12553

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