Log jam - Wikipedia
WEBA log jam is a naturally occurring phenomenon characterized by a dense accumulation of tree trunks and pieces of large wood across a vast section of a river, stream, or lake. ("Large wood " is commonly defined to be pieces of wood more than 10 cm (4 in) in diameter and more than 1 m (3 ft 3 in) long.) [1] Log jams in rivers and streams often ...
Great Raft - Wikipedia
WEBThe Great Raft was an enormous log jam or series of "rafts" that clogged the Red and Atchafalaya rivers in North America from perhaps the 12th century until its removal in the 1830s. It was unique in North America in terms of its scale.
Earth's Largest Logjam Holds 3.4 Million Tons of Carbon, Study …
WEBApr 25, 2023 · The Mackenzie River abounds with logs of all ages, especially in its delta, the world's third-largest by land area. For the new study, researchers studied about 13,000 square kilometers of the delta, the most ambitious such mapping effort ever made.
World's biggest cumulative logjam, newly mapped in the Arctic, …
WEBApr 11, 2023 · A new study has mapped the largest known woody deposit, covering 51 square kilometers (20 square miles) of the Mackenzie River Delta in Nunavut, Canada, and calculated that the logs store about...
Logjams and Large Wood in Rivers — The Science of Rivers
WEBFeb 15, 2021 · A coarse, cobbly streambed may become looser, with cobbles dispersed among patches of finer gravels and sands. In contrast to a river with no logs, this large-wood-rich river as a more diverse or complex habitat. Slack water areas with low velocity water alternate with swiftly-flowing riffles.
World's biggest cumulative logjam mapped in the N.W.T. - CBC.ca
WEBApr 26, 2023 · You might not think of the Arctic as a place with a lot of trees, but a recent study says the Mackenzie River Delta in the N.W.T. is home to the world's biggest known cumulative logjam —...
MIT researchers highlight the impacts of logjams in river …
WEBSep 25, 2020 · Researchers at MIT have modeled how engineered and natural wood jams change river water levels, enabling an assessment of the trade-offs in flood risk and habitat creation for river restoration projects.
Logjams aren’t really jammed at all, say geoscientists
WEBNov 19, 2019 · Logjams are relatively common in the Salmon River watershed, which drains 14,000 square miles of coniferous forest land in central Idaho. The US Forestry Service estimates there are currently...
Stream Restoration Efficacy: Looking Deeper into Logjams
WEBMar 2, 2023 · Human-made logjams in streams are intended to enhance habitat complexity by forming pools, which give salmon and other fish more places to grow and live during their crucial first year. Most restoration monitoring programs assess fish abundance to determine whether projects have been successful.
The Great Raft of the Red River - Red River Historian
WEBSep 11, 2023 · The U.S. steam boat, "Aid," slides through the Red River during the 1874 clearing of the Great Raft conducted by Lt. Eugene Woodruff. A hauntingly beautiful photograph of the US Aid on the Red River. Men removing logs from the river to clear the waterway. A massive log jam made up "the Great Raft."
Skip to content