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The meteorology team conducted a pilot balloon observation at dawn to measure the wind profile above the valley.
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The meteorology team conducted a pilot balloon observation at dawn to measure the wind profile above the valley.
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Related words
pilot balloon observation
Noun
(meteorology)
A
method
of
winds-aloft
observation,
temperature,
and
relative
humidity
of
the
upper
that
is,
the
determination
of
wind
speeds
and
air
and
to
automatically
transmit
that
directions
in
the
atmosphere
above
a
station.
This
is
done
by
reading
the
elevation
and
azimuth
angles
of
a
theodolite
(instrument)
observation
while
visually
tracking
a
pilot
balloon.
The
ascension
rate
of
the
balloon
is
approximately
determined
by
careful
inflation
to
a
given
total
lift.
After
release
from
the
ground,
periodic
readings
(usually
at
one-minute
intervals)
of
elevation
and
azimuth
angles
of
the
balloon
are
recorded.
These
data
are
transferred
to
a
winds-aloft
plotting
board,
and
wind
speed
and
direction
at
selected
levels
are
calculated
by
trigonometric
methods.
Japanese Meaning
パイロットバルーン観測とは、気象観測の手法の一つであり、地上からパイロットバルーンを放出し、その上昇中のバルーンの仰角や方位角を測定することで、高層大気における風速・風向、温度、相対湿度などを求める方法です。 / 放出後、定期的（通常は1分間隔）に測定された角度データを三角測量などの手法によって解析し、所定の高度における風の状態を計算します。
Related Words
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