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The Turbulence Structure of Nocturnal Slope Flow
Publisher: American Meteorological Society
Abstract: Measurements of the turbulence structure of nocturnal slope flow are used to test the hypothesis that slope flow turbulence in the region above the low-level wind maximum is decoupled from the surface and has a local ...
Observations and Models of Simple Nocturnal Slope Flows
Publisher: American Meteorological Society
Abstract: Measurements of simple nocturnal slope winds were taken on Rattlesnake Mountain, a nearly ideal two-dimensional ridge. Tower and tethered balloon instrumentation allowed the determination of the wind and temperature ...
How Far is Far Enough?: The Fetch Requirements for Micrometeorological Measurement of Surface Fluxes
Publisher: American Meteorological Society
Abstract: Recent model estimates of the flux footprint are used to examine the fetch requirements for accurate micro-meteorological measurement of surface fluxes of passive, conservative scalars within the surface flux layer. The ...
Corrigendum
Publisher: American Meteorological Society
Abstract: Correction to Volume 11, Issue 4, pages 1018-1025.
Transient Cold Air Drainage down a Shallow Valley
Publisher: American Meteorological Society
Abstract: rainage of cold air down a small valley and associated near-surface wind maxima are examined from 20 stations with sonic anemometers at 1 m and from a 20-m tower that includes six sonic anemometers in the lowest 5 m, ...
Variations in Measured Values of Lateral Diffusion Parameters
Publisher: American Meteorological Society
Abstract: The behavior of the quantity S = σy/xσ? for surface releases of tracers is examined. Variations in this quantity for different field programs are shown to be attributable largely to variations in sampling time t and averaging ...
A Field Intercomparison Technique to Improve the Relative Accuracy of Longwave Radiation Measurements and an Evaluation of CASES-99 Pyrgeometer Data Quality
Publisher: American Meteorological Society
Abstract: Techniques for improving the relative accuracy of longwave radiation measurements by a set of pyrgeometers [the Eppley Laboratory Precision Infrared Radiometer (Model PIR)] are presented using 10 PIRs from the 1999 Cooperative ...
The NCAR Atmosphere-Surface Turbulent Exchange Research (ASTER) Facility
Publisher: American Meteorological Society
Abstract: The Atmosphere-Surface Turbulent Exchange Research (ASTER) facility developed at the National Center for Atmospheric Research (NCAR) will support observational research on the structure of the atmospheric surface layer. ...
HATS: Field Observations to Obtain Spatially Filtered Turbulence Fields from Crosswind Arrays of Sonic Anemometers in the Atmospheric Surface Layer
Publisher: American Meteorological Society
Abstract: The Horizontal Array Turbulence Study (HATS) field program utilized horizontal, crosswind arrays of sonic anemometers to calculate estimates of spatially filtered and subfilter-scale (SFS) turbulence, corresponding to its ...