Daily water-column rates of sunlight absorption by chromophoric dissolved organic matter (CDOM) leached from permafrost soils collected from the North Slope of Alaska in the summers of 2018 and 2022

Dissolved organic carbon (DOC) was leached from permafrost soils near the Toolik Field Station in the Alaskan Arctic. Daily rates of sunlight absorption by chromophoric dissolved organic matter (CDOM) from the permafrost soil leachates over the water column depth of an arctic headwater stream were quantified.

溶解性有机碳（Dissolved organic carbon, DOC）从阿拉斯加北极地区Toolik野外站附近的永久冻土土壤中淋溶而出。研究量化了来自永久冻土土壤淋溶物的有色溶解性有机物（Chromophoric dissolved organic matter, CDOM）在北极源头溪流整个水柱深度范围内的日光吸收日速率。