Observations in the nocturnal boundary layer

Details Observations in the nocturnal boundary layer Observations in the nocturnal boundary layer

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982bolme..22...21g&link_type=abstract

Boundary-Layer Meteorology, vol. 22, Jan. 1982, p. 21-48.

Computer Science

30

Atmospheric Stratification, Midlatitude Atmosphere, Night Sky, Planetary Boundary Layer, Tropical Regions, Atmospheric Models, Atmospheric Temperature, Atmospheric Turbulence, Geostrophic Wind, Nocturnal Variations, Surface Roughness

Scientific paper

Selected nighttime observations from four sites of the stably-stratified planetary boundary layer (SBL) are examined to find the SBL scaled depth and time dependencies. Latitudes from 15-50 deg with dynamic roughness lengths of 0.001-0.5 m were considered, and low latitude data was compared with high-latitude data. The height and its equilibrium value were calculated by means of the turbulent kinetic energy equation integrated over the boundary layer. Observations from the Netherlands, from Minnesota, and from Wangara, and from Koorin of the SBL were compared to determine the effects of different latitudes and surface roughness. The gamma and stability length values predicted for the different latitudes matched well with the predictions, although the midlatitude values were slightly low, which was ascribed to katabatic conditions.

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