METHOD TO REMOTELY DETECT ASPECT IN REFERENCE POINTS OF AVALANCHE SITE USING LASER RANGE FINDER Russian patent published in 2014 - IPC G01C7/00 G01C3/08 

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of meteorology and glaciology and may be used to detect thickness of snow cover on slopes to predict avalanche hazard and to determine accumulation of snow in mountains. According to the proposed method, with the help of a laser range finder placed in a valley, they determine the distance to the reference point at the slope (L₁), azimuth (A₁) and a probing angle (β). Then, having displaced a probing beam to a certain distance AB along the horizontal line to the left or right, they determine the distance (L₂) to an arbitrary auxiliary point on the slope and an azimuth of probing of this point (A₂). After that from the projection onto the horizontal plane from values L₁, L₂ and AB, forming a triangle with appropriate sides b, a and c, they determine the angle α between projections of sections L₁ and L₂ to the horizontal plane, and by this angle and projections of the sides L₁ and L₂ they find the actual value of the projection AB and the angles φ and γ, formed accordingly at the junction of the projections of the sections L₁ and L₂ with the projection of the section AB. Then they determine the aspect via the azimuth of probing of the reference point at the slope, or via the azimuth of probing of the arbitrary auxiliary point at the slope or via the azimuth of probing of the arbitrary auxiliary point of the slope.

EFFECT: higher accuracy of remote measurement of an aspect.

5 cl, 4 dwg