Các thuật ngữ chính trong trắc địa chuyên nghiệp và công nghệ địa không gian.
HDOP ay ang sukat ng geometric na kalidad ng satellite geometry para sa horizontal na positioning sa GPS surveying.
The angle measured between two lines or directions in a horizontal plane, typically used in surveying to determine the relative positions of points.
The measurement of horizontal angles using the graduated circle on a surveying instrument.
A systematic measurement and mapping of water bodies including depths, currents, and underwater features for navigation and engineering purposes.