Medium-range dispersion experiments downwind from a shoreline in near neutral conditions

Gryning, Sven‐Erik; Lyck, E.

doi:10.1016/0004-6981(80)90005-0

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…The median of σ v /σ w from these eight studies was about 3.0. A similar analysis (Gryning and Lyck, 1984) found a median σ v /σ w ratio of about 1.5, although these measurements were taken at a height of 115 m. An earlier study by Gryning and Lyck (1980) tabulated data from five tests with the anemometer set at 60 m. They found that α ranged from 1.2 to 1.7 with a median of 1.6. A more recent study (Batchvarova and Gryning, 1998) presented only four data points from turbulence measurements taken at 15 m. The median σ v /σ w was 1.8 and the values ranged from 1.6 to 2.2.…”

Section: Uncertainty In αmentioning

confidence: 89%

Aerometric measurement and modeling of the mass of CO2 emissions from Crystal Geyser, Utah

Gouveia¹,

Johnson²,

Leif³

et al. 2005

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Crystal Geyser in eastern Utah is a rare, non-geothermal geyser that emits carbon dioxide gas in periodic eruptions. This geyser is the largest single source of CO 2 originating from a deep reservoir. For this study, the amount of CO 2 emitted from Crystal Geyser is estimated through measurements of downwind CO 2 air concentration applied to an analytical model for atmospheric dispersion. Five eruptions occurred during the 48-hour field study, for a total of almost 3 hours of eruption. Pre-eruption emissions were also timed and sampled. Slow wind during three of the active eruptions conveyed the plume over a grid of samplers arranged in arcs from 25 to 100 m away from the geyser. An analytical, straight-line Gaussian model matched the pattern of concentration measurements. Plume width was determined from least-squares fit of the CO 2 concentrations integrated over time. The CO 2 emission rate was found to be between 2.6 and 5.8 kg/s during the eruption events, and about 0.17 kg/s during the active pre-eruptive events. Our limited field study can be extrapolated to an annual CO 2 emission of 12 kilotonnes from this geyser. As this is the first application of Gaussian dispersion modeling and objective timing to CO 2 emissions from a geyser of any type, the present study demonstrates the feasibility of applying this method more completely in the future.

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Section: Uncertainty In αmentioning

confidence: 89%

Aerometric measurement and modeling of the mass of CO2 emissions from Crystal Geyser, Utah

Gouveia¹,

Johnson²,

Leif³

et al. 2005

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“…Although there is overwhelming observational evidence of the non-Gaussian nature of the vertical dispersion, systematically nowGaussian distributions are not observed in the case of lateral diffusion (Deardorff and Willis, 1975;Gryning et al, 1978;Nieuwstadt and van Duuren, 1979;Gryning and Lyck, 1980;Eberhard et al, 1988). The lateral dispersion may be viewed as the combined effect of turbulence and shear in the wind direction (section 5.5).…”

Section: Probability Density Estimationmentioning

confidence: 99%

Description and validation of ERAD: An atmospheric dispersion model for high explosive detonations

Boughton¹,

DeLaurentis²

1992

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“…1. More information on the nearby terrain and the observational site is presented in Gryning and Lyck (1980). At the small mast, 10-minute averaged values of wind speed and instantaneous values of wind 800 m north of the small mast.…”

Section: Observational Site and Instrumentationmentioning

confidence: 99%

Small scale drainage front

Mahrt

Larsen

1982

Tellus A: Dynamic Meteorology and Oceanography

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A case study of nocturnal drainage flow is presented. The flow descends a gentle slope of a few percent extending about one half kilometer down to Roskilde Fjord in northeast Denmark. Opposing larger scale flow initially delays the advance of the drainage flow. After several hours delay, the drainage flow arrives at the coast as a sudden relatively deep surge of cold air.This surge of cold air significantly disturbs the immediate overlying flow. Even though the surge of cold air is characterized by high Richardson number and weak turbulent activity, this drainage front induces low Richardson number and significant turbulent activity in the overlying flow resulting in an "upside down" structure to the "boundary layer". The drainage flow following the initial surge is thinner, weaker and nearly stationary except for occasional thicker pulses of cold air.Tellus 34 (1982), 6 0040-2826/82/060579-09$02.50/0 0 1982 Munksgaard, Copenhagen

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Medium-range dispersion experiments downwind from a shoreline in near neutral conditions

Cited by 9 publications

References 14 publications

Aerometric measurement and modeling of the mass of CO2 emissions from Crystal Geyser, Utah

Aerometric measurement and modeling of the mass of CO2 emissions from Crystal Geyser, Utah

Description and validation of ERAD: An atmospheric dispersion model for high explosive detonations

Small scale drainage front

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