The validation of satelite-based wind speed maps to in-situ data record
Recently, wind-induced damages related to structure have been concerning in the community. Meanwhile, the problem rises among the structural designers because the wind speed information is scarce in some places. The satellite-based wind speed information over the sea could be found from the publi...
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| 主要作者: | |
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| 格式: | Undergraduates Project Papers |
| 语言: | English |
| 出版: |
2014
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| 主题: | |
| 在线阅读: | http://umpir.ump.edu.my/id/eprint/10105/1/RADIAH%20BINTI%20SARIP%20%23.PDF http://umpir.ump.edu.my/id/eprint/10105/ |
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| 总结: | Recently, wind-induced damages related to structure have been concerning in the
community. Meanwhile, the problem rises among the structural designers because the wind
speed information is scarce in some places. The satellite-based wind speed information
over the sea could be found from the public domain. However the data from satellite-based
is necessary to validate first. The main objective of this study is to validate the satellitebased
wind speed maps to in-situ data records. The specific objectives are as follows; to
obtain
in-situ wind speed data from Malaysia Meteorology Department (MMD) and
satellite-based
wind speed from public domain, to analyse the satellite-based wind speed
data
at in-situ wind speed station, to compare the analysed satellite-based wind speed data
with
the correspond in-situ wind speed value. Data collected from both resources were
tabulate
based on the highest wind speed value in six consecutive days. Wind speed data
from
the satellite were analysed based on topography effect according to Malaysian
standard
MS 1553: 2002 and terrain category. The topography information had been
obtained
from the Shuttle Radar Topography Mission (SRTM) data product. The analysed
satellite-based
wind speed data were compared with correspond in-situ wind speed value.
The
value estimated from satellite-based and in-situ wind speed data show a very good
agreement
(correlation coefficient of - 4.9, 0.92, -0.17 and 1.01, for; Sultan Ahmad Shah
Airport,
Sultan Mahmud Airport, Sultan Ismail Petra Airport and Mersing Airport
respectively)
the regression line fitted through the origin has a slope of 0.787, 0.999,
0.9956
and 0.99. Therefore, wind speed data from the satellite is reliable when the
topography information is available. |
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