SimradEK15
Bottomslopes
Example21Bottomslopes
Theedgeofthebeam(A)hitsthe
bottomrst,andstartstogivean
echo.Thebottomdetectorinthe
EK15measuresthestrongestecho,
detectswhatitthinksisthebottom,
andstartsthewhiteline.
Theareaabovethebottomdetection
(B)willbemaskedoff,andeven
thoughitmaycontainshthesewill
notbevisiblebecausetheechofrom
thebottomisstrongerthanthose
fromthesh.Theestimateddepth
(C)willbeshown.
OntheEK15thephenomenon
willcausethebottomline(E)tobe
distorted.
274
351718/C