The invention relates to a detection method of sea
fog remotely sensed by stationary meteorological satellites in the
daytime and at night. The detection method comprises the following steps: firstly receiving and
processing a
data file S-VISSR by utilizing the number of the stationary meteorological satellites and obtaining a GPF document containing 5
channel data after being projected through calibration and location, data amendment,
latitude and
longitude projection and other pretreatments; then extracting sea
fog information by utilizing 4
channel data in the GPF document, 2
split window channels in a
long wave infrared window region, 1 intermediate
infrared channel of 3.7 Mu m and 1 visible light channel of 0.67 Mu m according to the kinematic characteristics and the spectral characteristics of the sea
fog; and firstly filtering a movable cloud boundary and a medium-high cloud boundary and then filtering
water body in clear
sky and partial low clouds by adopting the
tertiary judging method, and finally determining a sea fog region by utilizing the
region growing method. The invention not only achieves the real-time monitoring of the sea fog in a wide ocean plane and the dynamic track of the sea fog region, but also provides an important basis for the shot forecast of the sea fog, thereby obtaining sea fog real-time monitoring images per hour at least.