Mixing Height Estimation On Basis Of Non-local Determination
Of Static Stability In An Industrial Region
Author(s)
S. Nath & R.S. Patil
Abstract
Mixing height estimation on basis of non-local
determination of static stability in an
industrial region
S. Nath & R.S. Patil
Centre for Environmental Science and Engineering,
Indian Institute of Technology,
Bombay-400 076, India
Abstract
Precise stability classification and correct mixing height values are necessary to
make realistic estimates of the impact from air pollution sources. In this paper,
mixing height has been evaluated on the basis of non-local static stability. This
evaluation technique has been compared with the traditional method of
determining mixing height from local static stability based on the Holzworth
method. Field observation for temperature lapse rate undertaken at Patalganga
industrial region, using minisonde slow ascent balloons is used as a case study.
Mixing height and stability classes inferred from non-local definition of static
stability is based on physical dynamics of air parcel motion in the planetary
boundary layer and hence provides better est
Keywords
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