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, ...

Abstract: To improve the quality of scalar-flux measurements, the two-point covariance between the vertical velocity w? and a scalar s?, separated in space both horizontally and vertically, is studied. The measurements of such ...

Abstract: A system to make atmospheric measurements from a moving trolley suspended by a stretched cable has been developed. At present, these measurements consist of wind velocity, temperature, humidity, and carbon dioxide ...

Abstract: A new sonic anemometer, called the U.W. sonic anemometer, has been designed to minimize the flow distortion due to the transducer wakes. We present a general analytical model for calculating the effect of these transducer ...

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 ...

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. ...

Abstract: AbstractA grand challenge from the wind energy industry is to provide reliable forecasts on mountain winds several hours in advance at microscale (?100 m) resolution. This requires better microscale wind-energy physics ...