Technical Environmental Services (TES) is a consulting and engineering service company serving the environmental community. It brings to industry and research organizations, utilities, chemical companies, meteorologists, state and federal governments, and others more than twenty-five years of boundary layer atmospheric experience in the design and operation of data gathering systems to measure and analyze the lower atmosphere. Design of such systems requires a thorough understanding of the physics of the lower atmosphere and a comprehension of the measurement processes necessary to produce accurate and affordable data from which complex decisions can be made. Even more important is the validation of the meteorological data collected through proven field calibration techniques and docum