Historic flood information for northern California streams from geological and botanical evidence

Helley, E.J.; LaMarche, Valmore C.

doi:10.3133/pp485e

Cited by 51 publications

(34 citation statements)

References 7 publications

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“…For situations when flood damage or effects can be related to tree-ring chronologies derived from the affected tree or from regional chronologies, flood ages commonly can be determined to a specific year, and in some instances, to a specific season (Sigafoos, 1964;Ruíz-Villanueva and others, 2010). Additionally, a minimum flood age can be interpreted from tree-ring analyses if trees are rooted on the surface of that flood deposit and can constrain ages for deposits occurring after tree establishment (Sigafoos, 1964;Helley and LaMarche, 1973;Speer, 2010).…”

Section: Paleoflood Chronologymentioning

confidence: 99%

Assessing inundation hazards to nuclear powerplant sites using geologically extended histories of riverine floods, tsunamis, and storm surges

O’Connor¹,

Atwater²,

Cohn³

et al. 2014

Scientific Investigations Report

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Section: Paleoflood Chronologymentioning

confidence: 99%

Assessing inundation hazards to nuclear powerplant sites using geologically extended histories of riverine floods, tsunamis, and storm surges

O’Connor¹,

Atwater²,

Cohn³

et al. 2014

Scientific Investigations Report

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“…The use of tree-ring dating for the interpretation of geomorphic processes has become an increasingly common technique largely as a result of several important papers including Sigafoos (1964), Everitt (1968), Alestalo (1971), Helley and LaMarch (1973) and Schweingruber (1988). Shroder (1978) coined the term dendrogeomorphology, which now describes this methodology; it is beyond the scope of the present chapter to provide an in-depth review.…”

Section: Dendrogeomorphology In Fluvial Systemsmentioning

confidence: 99%

Vegetation as a Tool in the Interpretation of Fluvial Geomorphic Processes and Landforms in Humid Temperate Areas

Hupp

Bornette

2003

Tools in Fluvial Geomorphology

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“…Annual runoff averages 52 inches; flows below 23 cfs occur annually, and high flows with associated flooding have historically occurred in Redwood Creek and other northwestern California streams. Destructive floods have repeatedly occurred (McGloshan and Briggs 1939, Zinke 1966, Helley and LaMarche 1973. Over the last 20 years, six flood peaks have exceeded 45,000 cfs: 1953, 1955, 1964, 1972 (2), 1975.…”

Section: The Redwood Environment Natural Environment Of Redwood Creekmentioning

confidence: 99%

Issues and impacts of Redwood National Park expansion

Agee

1980

Environmental Management

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/ In 1968, Redwood National Park was created in an atmosphere of controversy and compromise to preserve remnants of the coastal redwood (Sequoia sempervirens) ecosystems and the streams and seashores with which they are associated. The t968 boundary included the lower portions of several watersheds in the park, which meant that potential impacts from upstream, privately owned lands might occur. Between 1968 and1978, controversy continued between preservation and forest industry interests over the impacts of harvesting old growth timber upslope and upstream from the park. In 1978, the southern portion of the park around Redwood Creek was expanded by 48,000 acres, moving the boundary from a narrow, one-half mile riparian corridor to ridgelines, but still leaving two-thirds of the total watershed outside of the park. The park expansion has generated biological and social impacts and opportunities. Meeting the objectives of the 1978 legislation will require close coordination between federal and state government and local communities.Redwood National Park, located along the northern coast of California, was created in an atmosphere of controversy and compromise. Controversy continued because the boundary compromise passed by the United States Congress in 1968 (Public Law 90-545) subjected the physical resources of the park to damage from outside land uses and exposed the park visitor to the sights and sounds of adjacent clearcut logging. Since 1968, there were continuing efforts to improve logging practices around the park and to expand the 58,000-acre park. Recent evidence of damage to the park from outside land uses, primarily road-building and logging, resulted in a successful park expansion effort. In this paper, the problems of protecting physical park resources and the visitor experience are described; the options proposed to address these problems and the impacts of the legislated solution (Public Law 95-250) are analyzed.

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Historic flood information for northern California streams from geological and botanical evidence

Cited by 51 publications

References 7 publications

Assessing inundation hazards to nuclear powerplant sites using geologically extended histories of riverine floods, tsunamis, and storm surges

Assessing inundation hazards to nuclear powerplant sites using geologically extended histories of riverine floods, tsunamis, and storm surges

Vegetation as a Tool in the Interpretation of Fluvial Geomorphic Processes and Landforms in Humid Temperate Areas

Issues and impacts of Redwood National Park expansion

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