Estimation of Overlake Wind Speed from Overland Wind Speed: A Comparison of Three Methods

Schwab, David J.; Morton, J.

doi:10.1016/s0380-1330(84)71808-9

Cited by 45 publications

(29 citation statements)

References 5 publications

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“…In this study, we assume that wind speed and direction measured on the shore is characteristic of the entire loch. However, actual wind speed over the loch's surface is likely to have been slightly higher (Schwab & Morton, 1984).…”

Section: Study Sitementioning

confidence: 99%

The long-term (1979–2005) effects of the North Atlantic Oscillation on wind-induced wave mixing in Loch Leven (Scotland)

Spears

Jones

2010

Hydrobiologia

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We report on long-term covariation between indices of the North Atlantic Oscillation (NAO) and wind speed and direction in Loch Leven. The effects of the observed variations in wind speed and direction were combined to produce modelled wave-mixed depths (Zc). Positive correlations were observed between seasonal and annual wind speeds and westerly frequency and indices of the NAO that are in line with general perception: positive NAO was correlated with stronger, more westerly winds and these correlations were strongest in winter and spring. Correlations between NAO and estimates of Zc were strongest in the most westerly exposed site in spring (r 2 = 0.701; Zc spring versus spring NAO index). On average, over a 25-year period Zc was deeper in spring and shallower in summer. Major anomalies from the 25-year seasonal means were observed in 1982, 1979, and 1991. Annual average Zc was low in the late 1970s and early 1980s (shallowest average annual Zc of 1.0 m (1984)), high in the late 1980s and early 1990s (deepest average annual Zc of 1.9 m (1990)) and moderate in recent years (up to 2005). This study has major implications for our understanding of potential climate change drivers and the related responses of shallow lake ecosystems, including alterations to littoral habitat quality and benthic-pelagic coupling.

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Section: Study Sitementioning

confidence: 99%

The long-term (1979–2005) effects of the North Atlantic Oscillation on wind-induced wave mixing in Loch Leven (Scotland)

Spears

Jones

2010

Hydrobiologia

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“…To account for spatial variability in meteorological drivers across such a large lake, meteorological forcing was represented by 13 different but approximately equal-sized zones (see supporting information Figure S1). Hourly meteorological observations of air temperature, wind speed, wind direction, relative humidity, solar radiation (shortwave), and cloud cover at 21 coastal stations and three in-lake buoys operated by the National Data Buoy Center and Environment Canada were corrected to account for the differences between overland and overlake conditions based on empirical relationships developed for Lake Erie [Rodgers and Anderson, 1961;Schwab and Morton, 1984;Schertzer et al, 1987], and then spatially interpolated to the 13 zones using a method of Sambridge et al [1995]. Incoming longwave radiation was calculated first for the clear sky conditions [Idso and Jackson, 1969] and then adjusted for cloud cover [Parkinson and Washington, 1979].…”

Section: -D Modelingmentioning

confidence: 99%

Temporal and spatial dynamics of large lake hypoxia: Integrating statistical and three‐dimensional dynamic models to enhance lake management criteria

Bocaniov

Scavia

2016

Water Resources Research

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Hypoxia or low bottom water dissolved oxygen (DO) is a world‐wide problem of management concern requiring an understanding and ability to monitor and predict its spatial and temporal dynamics. However, this is often made difficult in large lakes and coastal oceans because of limited spatial and temporal coverage of field observations. We used a calibrated and validated three‐dimensional ecological model of Lake Erie to extend a statistical relationship between hypoxic extent and bottom water DO concentrations to explore implications of the broader temporal and spatial development and dissipation of hypoxia. We provide the first numerical demonstration that hypoxia initiates in the nearshore, not the deep portion of the basin, and that the threshold used to define hypoxia matters in both spatial and temporal dynamics and in its sensitivity to climate. We show that existing monitoring programs likely underestimate both maximum hypoxic extent and the importance of low oxygen in the nearshore, discuss implications for ecosystem and drinking water protection, and recommend how these results could be used to efficiently and economically extend monitoring programs.

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“…All landbased wind data are corrected to 10 m height above ground surface using the standard 1/7th power law for the wind speed profile (Davenport 1960). Before the hourly land-wind data were applied to the shoreline study sites, a correction that accounts for the difference between overland air temperature and water temperature was applied (Schwab and Morton 1984).…”

Section: Windmentioning

confidence: 99%

Factors Controlling Rates of Bluff Recession at Two Sites on Lake Michigan

Brown

Mickelson

Edil

2005

Journal of Great Lakes Research

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Estimation of Overlake Wind Speed from Overland Wind Speed: A Comparison of Three Methods

Cited by 45 publications

References 5 publications

The long-term (1979–2005) effects of the North Atlantic Oscillation on wind-induced wave mixing in Loch Leven (Scotland)

The long-term (1979–2005) effects of the North Atlantic Oscillation on wind-induced wave mixing in Loch Leven (Scotland)

Temporal and spatial dynamics of large lake hypoxia: Integrating statistical and three‐dimensional dynamic models to enhance lake management criteria

Factors Controlling Rates of Bluff Recession at Two Sites on Lake Michigan

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