Underwater irradiance attenuation and photobleaching of chromophoric dissolved organic matter in shallow Arctic lakes of the Mackenzie Delta, NWT.

• Main Author: Gareis, Jolie A.L.
• Format: Thesis
• Language: English
• Published: 2007
• Subjects: Arctic; Mackenzie Delta; Climate change
• Online Access: http://summit.sfu.ca/item/8324

In situ attenuation of ultraviolet-B (UVB; 310-320 nm subset), ultraviolet-A (UVA) and photosynthetically active radiation (PAR) generally declined over the 2004 open-water season in a set of shallow Mackenzie Delta floodplain lakes. Average 1% photic depths were < 30 cm for UVB and < 50 cm fo...