Review of the Role of Remote Sensing for Submarine Groundwater Discharge

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Subham Mukherjee
Keyword(s):  
Remote Sensing ◽  
Submarine Groundwater Discharge ◽  
Groundwater Discharge ◽  
Submarine Groundwater

scholarly journals Assessing the role of submarine groundwater discharge as a source of Sr to the Mediterranean Sea

2017 ◽  
Vol 200 ◽  
pp. 42-54 ◽  
Author(s):  
Giada Trezzi ◽  
Jordi Garcia-Orellana ◽  
Valentí Rodellas ◽  
Pere Masqué ◽  
Ester Garcia-Solsona ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Submarine Groundwater Discharge ◽  
Groundwater Discharge ◽  
Submarine Groundwater ◽  
The Mediterranean

scholarly journals Remote sensing techniques as a tool for detecting water outflows. The case study of Cephalonia Island. p.1519

2016 ◽  
Vol 47 (3) ◽  
pp. 1519
Author(s):  
M. Stefouli ◽  
E. Vasileiou ◽  
E. Charou ◽  
N. Stathopoulos ◽  
A. Perrakis ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Submarine Groundwater Discharge ◽  
Water Cycle ◽  
Groundwater Discharge ◽  
Buffer Zone ◽  
Landsat Images ◽  
Thermal Anomalies ◽  
Submarine Groundwater ◽  
Remote Sensing Techniques

The amount of water flowing into the seas and oceans has slowly but steadily increased in recent years, signifying a possible speeding up of the water cycle due to climate change. The detection of the water outflows and the exploitation of them are very important to the rational water management. Remote sensing techniques has been  proven  a  valuable  tool  for  the  detection  and  identification  of  submarine groundwater discharge-SGD (Submarine Groundwater Discharge). In this study   the island of Cephalonia in Ionian sea, Greece is considered as a case study. A  6 Km  sea   buffer zone around the island is studied using Landsat images. Submarine groundwater discharge has been detected through remote sensing methods and the results have been combined with the tectonism and hydrogeological conditions of the island. A quantitative analysis of temperature in the    buffer zone was   carried out. The   sea thermal anomalies in the same zone were also investigated. 

scholarly journals Submarine groundwater discharge as a major source of nutrients to the Mediterranean Sea

2015 ◽  
Vol 112 (13) ◽  
pp. 3926-3930 ◽  
Author(s):  
Valentí Rodellas ◽  
Jordi Garcia-Orellana ◽  
Pere Masqué ◽  
Mor Feldman ◽  
Yishai Weinstein
Keyword(s):  
Mediterranean Sea ◽  
Submarine Groundwater Discharge ◽  
Groundwater Discharge ◽  
Biogeochemical Cycles ◽  
Dissolved Inorganic Nutrients ◽  
Submarine Groundwater ◽  
External Sources ◽  
The Mediterranean ◽  
Atmospheric Inputs

The Mediterranean Sea (MS) is a semienclosed basin that is considered one of the most oligotrophic seas in the world. In such an environment, inputs of allochthonous nutrients and micronutrients play an important role in sustaining primary productivity. Atmospheric deposition and riverine runoff have been traditionally considered the main external sources of nutrients to the MS, whereas the role of submarine groundwater discharge (SGD) has been largely ignored. However, given the large Mediterranean shore length relative to its surface area, SGD may be a major conveyor of dissolved compounds to the MS. Here, we used a 228Ra mass balance to demonstrate that the total SGD contributes up to (0.3–4.8)⋅1012 m3⋅y−1 to the MS, which appears to be equal or larger by a factor of 16 to the riverine discharge. SGD is also a major source of dissolved inorganic nutrients to the MS, with median annual fluxes of 190⋅109, 0.7⋅109, and 110⋅109 mol for nitrogen, phosphorous, and silica, respectively, which are comparable to riverine and atmospheric inputs. This corroborates the profound implications that SGD may have for the biogeochemical cycles of the MS. Inputs of other dissolved compounds (e.g., iron, carbon) via SGD could also be significant and should be investigated.

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