Water sources, mixing and evaporation in the Akyatan lagoon, Turkey

Lécuyer, Christophe; Bodergat, Anne‐Marie; Martineau, François; Fourel, François; Gürbüz, Kemal; Nazik, Atike

doi:10.1016/j.ecss.2012.09.002

Cited by 15 publications

(11 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Average differences in elevation (400 m) and isotope contents (1.17 ‰ for δ 18 O; 9.9 ‰ for δ 2 H) give an altitude gradient of 0.29 ‰/100 m for δ 18 O (2.5 ‰/100 m for δ 2 H). These gradients are in accordance with values reported for the southern Adriatic region (0.24 ‰/100 m; Vreca et al, 2006), the global and Italian gradients (0.2 ‰/100 m; Bowen and Wilkison, 2002;Longinelli and Selmo, 2003) and simulated values for the Mediterranean Sea region (Lykoudis and Argiriou, 2007). In groundwater, more depleted contents were generally observed in the wet season compared to the dry season; however, absolute differences between seasons were small (0.21 ‰ for δ 18 O; 2.8 ‰ for δ 2 H).…”

Section: Stable Isotopes Of Watersupporting

confidence: 80%

“…Additionally, a local evaporation line (LEL) was determined considering the top lake samples for both seasons only. The resulting LEL (δ 2 H = 5.40 δ 18 O -0.3) is similar to another Turkish lagoon (δ 2 H = 5.29 δ 18 O -0.55; Lecuyer et al 2012). It intersects the LWML in δ 18 O = −5.85 ‰ (δ 2 H = −31.9 ‰), which is also close to the average groundwater contents (δ 18 O = −6.08 ‰; δ 2 H = −34.84 ‰) supporting assumption of higher elevation recharge area for the catchment.…”

Section: Stable Isotopes Of Watermentioning

confidence: 51%

“…Assuming two different end members, river and seawater, it was found that in the wet season the contribution of freshwater and seawater was 62 and 38 % on average. Throughout spring to autumn, progressive evaporation of lagoon water results in hypersaline conditions with strongly enriched isotope values suggesting limited input of freshwater in the system (Lecuyer et al, 2012). Still, it remains unknown in many lagoon systems what the contribution of different water sources is and how they change not only over time, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Such spatial impacts can be identified using environment tracer methods. Further, they can also be used to study temporal dynamics of water sources and hydrological processes like seasonal changes in evaporation and seawater contribution (Lecuyer et al, 2012;Schmidt et al, 2011). Salinity and stable isotopes of water were used to identify spatiotemporal changes of water in the Akyatan lagoon, Turkey (Lecuyer et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrological dynamics of water sources in a Mediterranean lagoon

Stumpp

Ekdal

Gönenç

et al. 2014

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Lagoons are important ecosystems occupying large coastal areas worldwide. Lagoons contain various mixtures of marine and freshwater sources which are highly dynamic in time. However, it often remains a challenge to identify and quantify dynamic changes of water sources, particularly in heterogeneous lagoon systems like the Köycegiz-Dalyan lagoon (KDL), which is located at the south-west of Turkey on the Mediterranean Sea coast. The objective of this study was to quantify different contributions of potential water sources i.e. surface water, groundwater and seawater in the lagoon and how these water sources changed over time and space. In the wet-and dry-season stable isotopes of water, chloride concentration (Cl − ) and salinity were measured in two depths in the lagoon and surrounding water bodies (sea, lake, groundwater). Different components of water sources were quantified with a three component endmember mixing analysis. Differences in Cl − and stable isotopes over time indicated the dynamic behaviour of the system. Generally, none of the groundwater samples was impacted by water of the Mediterranean Sea. During the wet season, most of the lagoon water (> 95 %) was influenced by freshwater and vertically well mixed. During the dry season, high Cl − in the deeper sampling locations indicated a high contribution of marine water throughout the entire lagoon system due to saltwater intrusion. However, a distinct layering in the lagoon was obvious from low Cl − and depleted isotope contents close to the surface supporting freshwater inflow into the system even during the dry season. Besides temporal dynamics also spatial heterogeneities were identified. Changes in water sources were most evident in the main lagoon channel compared to more isolate lagoon lakes, which were influenced by marine water even in the wet season, and compared to side branches indicating slower turnover times. We found that environmental tracers helped to quantify highly dynamic and heterogeneous contributions of different water sources in the Köycegiz-Dalyan lagoon.

show abstract

Section: Stable Isotopes Of Watersupporting

confidence: 80%

Section: Stable Isotopes Of Watermentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrological dynamics of water sources in a Mediterranean lagoon

Stumpp

Ekdal

Gönenç

et al. 2014

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…Çalışma alanının da içerisinde yer aldığı Çukurova'nın Kuvaterner jeolojisi ile ilgili çok sayıda çalışma vardır (Bal, 1983;Çavuşgil, 1985;Şenol, 1989;Şenol vd., 1993;1998;Gürbüz, 1997;Gürbüz, 1999;Öner vd., 2002;Gürbüz, 2003;Öner vd., 2005a;Öner vd., 2005b;Darbaş vd., 2008;Kurt, 2010;Lécuyer, 2012;Güler vd., 2013). Çalışma alanında, Kuvaterner döneminde karasal ve geçiş ortamını temsil eden birimler çökelmiş olup bu birimler fasiyes özelliklerine göre stratigrafik olarak Kalabriyen-Siciliyen birimleri ve Tirreniyen-Güncel birimleri olarak ikiye ayırmıştır (Şenol vd., 1993).…”

Section: Materyal Ve Metotunclassified