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The Importance of Moisture Fluctuations and Wind Shear in Acoustic Backscatter in GATE
Publisher: American Meteorological Society
Abstract: We explain, using in situ data, some of the mechanisms contributing to acoustic backscatter measured using an active, vertically pointing echosonde (acoustic sounder) mounted aboard ship in the tropical Atlantic. Averaged ...
Optimum Averaging Times for Short-Term Wind Prediction in the Planetary Boundary Layer
Publisher: American Meteorological Society
Abstract: Root-mean-square error statistics were applied to tower wind data to find the optimum average times of the wind and azimuth to be used as predictors of a 2-min mean wind speed and direction, 0?10 min in the future. The ...
Acoustic Doppler Measurement of Atmospheric Boundary Layer Velocity Structure Functions and Energy Dissipation Rates
Publisher: American Meteorological Society
Abstract: Acoustic echo sounder (echosonde) and meteorological tower measurements of the turbulent velocity structure parameters D(r) and Cv2 and the rate of dissipation of turbulent energy ? are compared. The two acoustic Doppler ...
Geohydrology of Industrial Waste Disposal Site
Publisher: American Society of Civil Engineers
Abstract: An existing desert site for hazardous chemical and low‐level radioactive waste disposal is evaluated for suitability. This site is characterized using geologic, geohydrologic, geochemical, and other considerations. Design ...
Errors in Second Moments Estimated from Monostatic Doppler Sodar Winds. Part I: Theoretical Description
Publisher: American Meteorological Society
Abstract: We present a theoretical derivation for errors in calculated second moments arising from the temporal and spatial separation between individual wind measurements obtained from three-axis colocated monostatic Doppler sodar ...
Errors in Second Moments Estimated from Monostatic Doppler Sodar Winds. Part II: Application to Field Measurements
Publisher: American Meteorological Society
Abstract: In this paper we use the theoretical results presented in Part I of this paper to correct turbulence parameters derived from monostatic sodar wind measurements in an attempt to improve the statistical comparisons made with ...
The Boulder Atmospheric Observatory
Publisher: American Meteorological Society
Abstract: The Boulder Atmospheric Observatory (BAO) is a unique research facility for studying the planetary boundary layer and for testing and calibrating atmospheric sensors. The facility includes a 300 m tower instrumented with ...
A Comparison of Two Sonic Anemometers and Fast-Response Thermometers
Publisher: American Meteorological Society
Abstract: In an experiment conducted at the Boulder Atmospheric Observatory (BAO), comparisons were made between two types of sonic anemometer and thermometer systems. One sonic anemometer was a single-axis system manufactured by ...
Analysis of the Tropical Marine Boundary Layer during GATE Using Acoustic Sounder Data
Publisher: American Meteorological Society
Abstract: An acoustic sounding system placed on the NOAA Ship Oceanographer during GATE provided a unique meteorological data set. Examples of three distinct boundary-layer situations are discussed as they appear on the facsimile ...
Analysis of the Convectively Modified GATE Boundary Layer Using in situand Acoustic Sounder Data
Publisher: American Meteorological Society
Abstract: A boundary-layer categorization scheme based on GATE acoustic sounder data stratifies surface data and tethered balloon data from the NOAA research ship Oceanographer. The results indicate a clear increase in the sensible ...
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