If both legs are pointed, the instrument known as DIVIDERS and is used principally for measuring distances or coordinates. A graduated line hooked up to a Current POLE, utilized in measuring the velocity of the current. Extended, this line is typically referred to as COMPASS MERIDIAN. While cyclolysis often occurs with a filling (an increase in atmospheric strain), the two terms should not be used synonymously. While cyclogenesis normally happens with a deepening (a decrease in atmospheric strain), the 2 terms shouldn't be used synonymously.

While some occluded fronts exhibit this characteristic, they're extra properly referred to as Cold OCCLUSIONS. A liquid, wet, or spirit compass is a magnetic compass having a bowl fully filled with liquid; a magnetic compass without liquid is known as a dry compass. See additionally LAMBERT CONFORMAL CONIC MAP PROJECTION, MODIFIED LAMBERT CONFORMAL MAP PROJECTION. In a easy conic map projection the cone is tangent to the sphere or vaperather spheroid, in a conic map projection with two normal parallels the cone intersects the sphere or vapeamong spheroid along two chosen parallels, and in a polyconic map projection a collection of cones are tangent to the sphere or spheroid.

A conic map projection by which the surface of a sphere or spheroid is conceived as developed on a cone which intersects the sphere or vapefigure   spheroid alongside two standard parallels, vapeanchor the cone being unfold out to type a aircraft. The phrases conformal and orthomorphic are used synonymously since neither characteristic can exist without the opposite. If no interpolation is required, the tabulated altitude and computed altitude are an identical. See additionally TABULATED AZIMUTH.

See also SPLITSECOND TIMER. 1. Tabulated altitude interpolated for increments of latitude, declination, or hour angle. A modified nice-circle track consisting of an preliminary nice circle observe from the point of departure with its vertex on a limiting parallel of latitude, a parallel-sailing observe from this vertex alongside the limiting parallel to the vertex of a remaining nice-circle track to the destination. Ninety degrees minus the latitude, the angle between the polar axis and the radius vector locating a point.

Space-polar coordinates outline a point on the surface of a sphere by (1) its distance from a fixed point at the center, called the POLE (2) the COLATITUDE or angle between the POLAR AXIS (a reference line via the pole) and the RADIUS VECTOR (a straight line connecting the pole and the point)- and (3) the LONGITUDE or angle between a reference plane by means of the polar axis and a airplane via the radius vector and the polar axis.

Direction is given as the angle between a reference radius vector vapeexpect and a radius vector vapeanchor (just click the next document) to the purpose.

A circle graduated in degrees, clockwise from 0° on the reference course to 360°, and generally also in compass points. It is usually within the form of a skinny disk or annulus graduated in levels, clockwise from 0° on the reference route to 360°, and sometimes additionally in compass points. A pelorus is generally referred to as a dumb compass. Azimuth relative to compass north. Stating in order the names of the factors (and vapeconsider   generally the half and quarter points) is named BOXING THE COMPASS.

A line connecting factors of equal elevation or equal depth. Any aircraft curve which is the locus of some extent which moves in order that the ratio of its distance from a hard and fast level to its distance from a hard and fast line is constant.