Ecological Systems and Devices Annotation << Back FIELD MEASUREMENTS OF LAKE WATER EXCHANGE LAGOON TYPE WITH SEA A.A. Moskvitin This paper presents the results of field measurements of the main phases of the water regime of Lake Tunaycha during the spring flood and the period of autumn storms. Work has been carried out to assess the volume of fresh water entering the lake with the rivers, as well as work has been carried out to study the water exchange of Lake Tunaycha and Mordvinov Bay (Sea of Okhotsk) through the Krasnoarmeysky Strait. Technical measuring instruments based on the Doppler current sensor AANDERAA Pulse ® Doppler Current Sensor 4420 are considered. The work was carried out as part of an integral part of the research work "Comprehensive ecological survey of the nature monument of regional signifi cance "Lake Tunaicha" in terms of studying the water exchange of Lake Tunaicha with the Sea of Okhotsk". Keywords: Lake Tunaicha, environmental monitoring, field measurements, flow sensor, AANDERAA. DOI: 10.25791/esip.6.2023.1379 Pp. 59-66.