Evolution of downslope flow under strong opposing trade winds and frequent trade-wind rainshowers over the Island of Hawaii

During HaRP, high-resolution datasets were collected from 50 National Center for Atmospheric Research (NCAR) Portable Automated Mesonet (PAM) stations, research aircraft(NCAR Electra), tethersondes, rawinsondes, a National Oceanic and Atmospheric Administration (NOAA) boundary layer wind profiler, a...

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Bibliographic Details
Published in:Monthly weather review 2001-05, Vol.129 (5), p.956-977
Main Authors: FRYE, Jeffrey L, CHEN, Yi-Leng
Format: Article
Language:English
Subjects:
Atmospheric research
Boundary layers
Coastal zone
Cooling
Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Precipitation
Studies
Trade winds
USA, Hawaii
Wind
Winds and their effects
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Summary:During HaRP, high-resolution datasets were collected from 50 National Center for Atmospheric Research (NCAR) Portable Automated Mesonet (PAM) stations, research aircraft(NCAR Electra), tethersondes, rawinsondes, a National Oceanic and Atmospheric Administration (NOAA) boundary layer wind profiler, and a dual-Doppler network (NCAR CP-3 and CP-4) (Fig. 1). During 0300-0500 HST, a second group of tradewind rainshowers moves over the island. Because of a small horizontal extent of the offshore flow and a rather weak density current structure under atypical strong trade winds, the interactions between rainshowers and offshore flow occur in the coastal areas and even inland in the early morning.
ISSN:0027-0644
1520-0493
DOI:10.1175/1520-0493(2001)129<0956:EODFUS>2.0.CO;2