title: Spectral light absorption by yellow substance and its dynamics in the surface layers of thermokarst lakes of the Central Yamal
abstract: The article presents the experimental data on dynamics of light absorption by yellow substance in the surface layer of 52 thermokarst lakes of the Middle Yamal obtained during hydrological, hydrobiological and hydrochemical field investigations in September 2018. In the study period, light absorption by yellow substance in the spectral range 400–700&nbsp;nm was calculated as 0.7–0.9&nbsp;m–1. We measured concentrations of yellow substance Сys and chlorophyll a Chla. The latter had its maximum eq
journal: Limnology and Freshwater Biology