The 2nd Research Laboratory
Atmospheric Boundary Layer
General characteristics of the atmospheric boundary layer are investigated with field observations and laboratory experiments. In the field observation, evaluation of surface heat budget components is conducted by analyzing data obtained through continuous measurements of wind, temperature and water vapor at several heights with different platforms in the MRI. Observation of heat budget and analysis of heat budget components with routine data are also conducted in Tibetan Plateau, China On the other hand, the large meteorological wind tunnel with the apparatus of thermal and velocity stratifications is used to investigate fundamental structures and characteristics of turbulent flow.
Example of evaluation of heat
budget elements:
Measurement of night-time latent heat flux with specially-designed
dewfall meter. Amount of dewfall deposited on styrofoam with a diameter
of 1.2m is measured as change of water depth.
Bricks (10cm×21cm×6cm) are placed on the floor of the test section of wind tunnel (18m×3m×2m).
[Physical
Meteorology Research Department]