LAKE BAIKAL ESTUARY AREAS
Tributaries that feed Lake Baikal are divided into 2 groups - Big and Small influent provinces. The most widely spread types of the mouth areas of Lake Baikal rivers are delta and simple ones. According to the morphological structure, the river mouths of the Big inflowing province are represented by 4 types: simple, estuarial, delta-estuarial and delta, whereas the river mouths of the Small inflowing province include 3 types: 7 estuary areas are referred to the simple type, the same number of mouth areas are referred to the delta type, and 2 areas to the estuarial-delta type. The areas of the estuarial water zones are determined. Consideration is given to the development conditions of Baikal river mouth areas and the effect of the river mouths on the processes taking place in the lake.