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Sea breeze

About: Sea breeze is a research topic. Over the lifetime, 2544 publications have been published within this topic receiving 55651 citations.


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Journal ArticleDOI
TL;DR: In this paper, a clear-cut association between the echoes and the meteorological events is demonstrated, where direct measurements are not available, the echo patterns are consistent with a rational physical picture of the sea breeze, and a combination of direct observation of the small pulse volume, by echo magnitude considerations, and by echo pattern is demonstrated.
Abstract: Radar and meteorological observations of four sea-breeze cases are presented. A clear-cut association between the echoes and the meteorological events is demonstrated. Where direct measurements are not available, the echo patterns are consistent with a rational physical picture of the sea breeze. Birds, insects, and other particulate matter are precluded by a combination of direct observation of the small pulse volume, by echo magnitude considerations, and by echo pattern. Scattering theory can account for the magnitude of the coherent layer echoes on the vertical beam, at the sea-breeze inversion with large but reasonable refractive-index gradients of 4 to 9 N units per cm or with vapor gradients of about 1 to 2 mb per cm. Incoherent echoes on the horizontal beam appear to come from vapor sheaths of large radius of curvature, with index gradients of similar magnitude, which are oriented parallel to the sea-breeze front. While this unusual result is supported by the streamer-form echo patterns an...

45 citations

Journal Article
TL;DR: In this paper, the authors studied the effect of wind-generated, short-period wind waves to the background swell on the cusp morphology of a beach in southwestern Australia and found that the increase in wave height, a decrease in wave period and an intensification of the nearshore currents induced a diurnal cycle of beach change, and that the morphology became increasingly subdued due to accretion in the embayment and erosion of the horns.
Abstract: Beach morphology and nearshore hydrodynamics were monitored over a number of sea breeze cycles on a beach with pronounced beach cusp morphology in southwestern Australia. The action of the sea breeze resulted in consistent changes to the incident wave field and beach cusp morphology, and induced a diurnal cycle of beach change. The morphological changes were accomplished without an apparent sediment gain or loss, but involved a redistribution of sediment within the cusp morphological system. During the sea breeze, the addition of locally-generated, short-period wind waves to the background swell resulted in an increase in wave height, a decrease in wave period and an intensification of the nearshore currents. The cusp morphology became increasingly subdued due to accretion in the embayment and, to a lesser extent, erosion of the horns. After the cessation of the sea breeze, the wind-wave energy level gradually decreased and the associated wind-wave period increased. Accretion on the cusp horns was accompanied by minor erosion of the embayment and resulted in an accentuation of the cusp morphology. The build-up of the cusp morphology was a consequence of the morphodynamic feedback between the antecedent cusp morphology and the wave runup characteristics. The wave runup was diverted from the horn into the embayment, resulting in decreased backwash volumes and hence build-up of the horn. In the cusp embayment, increased backwash volumes resulted in scouring and the suppression of potential swash events at the base of the beachface. Consequently, the proportion of infragravity-wave energy in the runup record was larger in the embayment than on the horn. Ten hours after the sea breeze had stopped blowing, significant amounts of wind-wave energy were still present. It is suggested that these wind waves were generated a distance of almost 200 km south of the study area, implying that the presence of the local sea breeze may have regional implications for coastal processes.

45 citations

Journal ArticleDOI
TL;DR: In this paper, a simple analytical model, representing the dynamical balance of a homogeneous surface layer, predicts diurnal wind forcing, i.e., a sea-breeze, should drive diurnal currents whose amplitude will be particularly energetic close to 30° latitude, where the diurnal and inertial periods are similar.

45 citations

Journal ArticleDOI
TL;DR: In the late afternoon of 18 June 2015, ozone concentrations in advance of a strong lake-breeze front arising from the Great Salt Lake in northern Utah were ~20 ppb lower than those in its wake.
Abstract: During the late afternoon of 18 June 2015, ozone concentrations in advance of a strong lake-breeze front arising from the Great Salt Lake in northern Utah were ~20 ppb lower than those in its wake The lake-breeze progression and ozone concentrations in the valley were monitored by an enhanced observation network that included automated weather stations, a nearby Terminal Doppler Weather Radar, state air quality measurement sites, and mobile platforms, including a news helicopter Southerly flow opposing the lake breeze increased convergent frontogenesis and delayed the onset of its passage through the Salt Lake valley Ozone concentrations were exceptionally high aloft at the lake-breeze frontal boundary The progression of this lake breeze was simulated using the Weather Research and Forecasting Model at 1-km horizontal grid spacing over northern Utah The model was initialized using hourly analyses from the High Resolution Rapid Refresh model Errors in the underlying surface initialization wer

45 citations

Journal ArticleDOI
TL;DR: In this article, a lidar system is used to determine the diurnal evolution of the planetary boundary layer (PBL) height on a summer day characterized by anticyclonic conditions.
Abstract: A lidar system is used to determine the diurnal evolution of the planetary boundary layer (PBL) height on a summer day characterized by anticyclonic conditions. The site is located some 15 km distant from the sea, on a peninsula in south-east Italy. Contrary to expectations, the PBL height, after an initial growth consequent to sunrise, ceases to increase about 2 h before noon and then decreases and stabilizes in the afternoon. An interpretation of such anomalous behaviour is provided in terms of trajectories of air parcels towards the lidar site, which are influenced by the sea breeze, leading to a transition from a continental boundary layer to a coastal internal boundary layer. The results are analyzed using mesoscale numerical model simulations and a simple model that allows for a more direct interpretation of experimental results.

45 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202382
2022190
2021101
202087
201978
201877