Source Word
false easting
Noun
(cartography)
A
value
relating
to
distance
east
of
a
standard
meridian
but
with
a
constant
added
to
make
the
numbers
convenient.
For
instance,
in
UTM
the
value
500,000
is
added
to
the
easting
from
the
center
of
each
zone
to
return
a
false
easting
that
is
never
negative
(the
smallest
true
easting
is
approximately
-340,000
which
is
set
to
false
easting
of
160,000).
Japanese Meaning
地図作成で用いられる用語。基準となる子午線からの実際の東方向の距離（実際のイースティング）に、計算を容易にするためにあらかじめ定数を加算した値。たとえばUTM座標系では、各ゾーンの中心からの東方向の距離に500,000が加えられており、これにより値が常に正となるように調整される。
Sense（1）
(cartography)
A
value
relating
to
distance
east
of
a
standard
meridian
but
with
a
constant
added
to
make
the
numbers
convenient.
For
instance,
in
UTM
the
value
500,000
is
added
to
the
easting
from
the
center
of
each
zone
to
return
a
false
easting
that
is
never
negative
(the
smallest
true
easting
is
approximately
-340,000
which
is
set
to
false
easting
of
160,000).
（ plural ）
