Dissolved Methane in Coastal Waters of the Northeastern Black Sea

As the largest methane reservoir in world, Black Sea is characterized by significant variability its dissolved distribution patterns. Aerobic waters coastal regions are influenced various factors governing biogeochemical processes water column; however, their impact on pattern of not always well studied, especially shallow areas northeastern Sea, which have hitherto been thoroughly covered observations. Here, we consider measurements content several carried out from 2013–2017 with large and detailed spatial coverage order to identify key determining each region study area. The CH4 Sochi dominated river flow. increased saturation surface southeastern Crimean shelf (up 40 nM) caused influence Azov outflow. Feodosia Bay south it mainly an increase towards bottom 100 nM), associated water–sediment interactions gas emission bottom.