Evaluation of Salda Lake Hydrology Parameters

Ayşen Davraz; Fatma Aksever

Article Details

Evaluation of Salda Lake Hydrology Parameters

Authors:

Ayşen Davraz | Fatma Aksever

Publisher:

Afyon Kocatepe University

Main Topics:

Genel Jeoloji

Journal:

Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi Vol.23 Issue 4, pp.1029-1044

Document Type:

Article

Publication Date:

8/2023

Document Language:

Turkish

Document ID (Org No.):

2001297539

pISSN:

2149-3367

Keywords:

Abstract:

 Salda Lake is one of the rare alkaline lakes in the world with its natural beauty and stramatolite formations. The recharge of Salda Lake is provided by precipitation falling on the lake surface and in the lower basin, seasonal and continuously flowing streams and groundwater flow. The amount of rainfall recharge for the Salda Lake is 21.95 x 106 m3year. The discharge of the lake takes place only by evaporation and the amount of evaporation from the lake area was calculated as 51.96 x106 m3year. It has been determined that the water level of the Salda Lake has decreased continuously since September-2015 and the decrease amount was 3.17 m until January-2022. There are many water springs feeding the lake around Salda Lake. According to the flow measurements made between May 2021 and 2022 in these springs, it is predicted that there will be an average of 0.286 m3s recharge to the lake. The most important aquifer in the Salda Lake basin is alluvial and there are many boreholes drilled in this unit. Level measurements were made from the wells between February-2021 and October-2022. The static level in the basin was determined as 0.5-4.85 m around Salda village and 13.27-21.15 m in Yeşilova. Groundwater flow direction in the basin is towards the Salda Lake. Groundwater is recharged to the lake by subsurface flow from Marmaris peridotite units, which crop out in large areas around the Salda Lake. This recharge is the most important factor controlling the hydrogeochemical properties of the Salda Lake water. In this study, the hydrological parameters controlling the lake level change and their effects were examined. When the annual precipitation data from the meteorology stations around the Salda Lake and the fluctuations in the lake level are examined, it is seen that the precipitation amount is the most important parameter controlling the level change in the Salda Lake. Evaporation effect is less.

 Salda Lake is one of the rare alkaline lakes in the world with its natural beauty and stramatolite formations. The recharge of Salda Lake is provided by precipitation falling on the lake surface and in the lower basin, seasonal and continuously flowing streams and groundwater flow. The amount of rainfall recharge for the Salda Lake is 21.95 x 106 m3year. The discharge of the lake takes place only by evaporation and the amount of evaporation from the lake area was calculated as 51.96 x106 m3year. It has been determined that the water level of the Salda Lake has decreased continuously since September-2015 and the decrease amount was 3.17 m until January-2022. There are many water springs feeding the lake around Salda Lake. According to the flow measurements made between May 2021 and 2022 in these springs, it is predicted that there will be an average of 0.286 m3s recharge to the lake. The most important aquifer in the Salda Lake basin is alluvial and there are many boreholes drilled in this unit. Level measurements were made from the wells between February-2021 and October-2022. The static level in the basin was determined as 0.5-4.85 m around Salda village and 13.27-21.15 m in Yeşilova. Groundwater flow direction in the basin is towards the Salda Lake. Groundwater is recharged to the lake by subsurface flow from Marmaris peridotite units, which crop out in large areas around the Salda Lake. This recharge is the most important factor controlling the hydrogeochemical properties of the Salda Lake water. In this study, the hydrological parameters controlling the lake level change and their effects were examined. When the annual precipitation data from the meteorology stations around the Salda Lake and the fluctuations in the lake level are examined, it is seen that the precipitation amount is the most important parameter controlling the level change in the Salda Lake. Evaporation effect is less.

 Salda Lake is one of the rare alkaline lakes in the world with its natural beauty and stramatolite formations. The recharge of Salda Lake is provided by precipitation falling on the lake surface and in the lower basin, seasonal and continuously flowing streams and groundwater flow. The amount of rainfall recharge for the Salda Lake is 21.95 x 106 m3year. The discharge of the lake takes place only by evaporation and the amount of evaporation from the lake area was calculated as 51.96 x106 m3year. It has been determined that the water level of the Salda Lake has decreased continuously since September-2015 and the decrease amount was 3.17 m until January-2022. There are many water springs feeding the lake around Salda Lake. According to the flow measurements made between May 2021 and 2022 in these springs, it is predicted that there will be an average of 0.286 m3s recharge to the lake. The most important aquifer in the Salda Lake basin is alluvial and there are many boreholes drilled in this unit. Level measurements were made from the wells between February-2021 and October-2022. The static level in the basin was determined as 0.5-4.85 m around Salda village and 13.27-21.15 m in Yeşilova. Groundwater flow direction in the basin is towards the Salda Lake. Groundwater is recharged to the lake by subsurface flow from Marmaris peridotite units, which crop out in large areas around the Salda Lake. This recharge is the most important factor controlling the hydrogeochemical properties of the Salda Lake water. In this study, the hydrological parameters controlling the lake level change and their effects were examined. When the annual precipitation data from the meteorology stations around the Salda Lake and the fluctuations in the lake level are examined, it is seen that the precipitation amount is the most important parameter controlling the level change in the Salda Lake. Evaporation effect is less.

 Salda Gölü doğal güzelliği ve stramatolit oluşumları ile dünyadaki ender alkali göllerden birisidir. Salda Gölünün beslenimi göl yüzeyine ve alt havza geneline düşen yağışlar, mevsimlik ve sürekli akan dereler ile yeraltısuyu akımı ile sağlanmaktadır. Salda Gölü için yağıştan beslenim miktarı 21.95 x 106 m3yıldır. Gölün boşalımı ise sadece buharlaşma ile gerçekleşmekte olup göl alanından buharlaşma miktarı 51.96 x106 m3yıl olarak hesaplanmıştır. Salda Gölü su seviyesinin Eylül-2015den itibaren sürekli düştüğü ve Ocak-2022ye kadar düşüm miktarının 3.17 m olduğu belirlenmiştir. Salda Gölü çevresinde gölü besleyen çok sayıda su kaynağı bulunmaktadır. Bu kaynaklarda Mayıs 2021-2022 arasında yapılan debi ölçümlerine göre, göle ortalama 0.286 m3s beslenim olacağı öngörülmektedir. Salda Gölü havzasında en önemli akifer alüvyon olup bu birimde açılmış çok sayıda sondaj kuyusu bulunmaktadır. Şubat-2021 ve Ekim-2022 tarihleri arasında kuyulardan seviye ölçümleri yapılmıştır. Havzada statik seviye Salda köyü çevresinde 0.5-4.85 m ve Yeşilovada 13.27-21.15 m olarak tespit edilmiştir. Havzada yeraltısuyu akım yönü Salda Gölüne doğrudur. Salda Gölü çevresinde geniş alanlarda yüzeyleyen Marmaris peridotiti birimlerinden de yüzeyaltı akışı ile göle yeraltısuyu beslenimi gerçekleşmektedir. Bu beslenim Salda Gölü suyunun hidrojeokimyasal özelliklerini denetleyen en önemli unsurdur. Bu çalışmada, göl seviye değişimini denetleyen hidrolojik parametreler ve bunların etkileri irdelenmiştir. Salda Gölü çevresinde bulunan meteoroloji istasyonlarından alınan yıllık yağış verileri ile göl seviyesindeki dalgalanmalar incelendiğinde yağış miktarının Salda Gölü seviye değişimini denetleyen en önemli parametre olduğunu görülmektedir. Buharlaşma etkisi ise daha azdır.

Article Details

Evaluation of Salda Lake Hydrology Parameters

Authors:

Ayşen Davraz | Fatma Aksever

Publisher:

Afyon Kocatepe University

Main Topics:

Genel Jeoloji

Journal:

Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi Vol.23 Issue 4, pp.1029-1044

Document Type:

Article

Publication Date:

8/2023

Document Language:

Turkish

Document ID (Org No.):

2001297539

pISSN:

2149-3367

Salda Lake

hydrology

lake water level

conceptual modelSalda Gölü

Hidroloji

Göl Su Seviyesi

Kavramsal Model

Issues

Article Details

Authors: Ayşen Davraz | Fatma Aksever

Publisher: Afyon Kocatepe University

Main Topics: Genel Jeoloji

Journal: Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi Vol.23 Issue 4, pp.1029-1044

Document Type: Article

Publication Date: 8/2023

Document Language: Turkish

Document ID (Org No.): 2001297539

pISSN: 2149-3367

Issues

Authors:

Ayşen Davraz | Fatma Aksever

Publisher:

Afyon Kocatepe University

Main Topics:

Genel Jeoloji

Journal:

Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi Vol.23 Issue 4, pp.1029-1044

Document Type:

Article

Publication Date:

8/2023

Document Language:

Turkish

Document ID (Org No.):

2001297539

pISSN:

2149-3367