# Right-handed rectangular coordinates

From AMS Glossary

## right-handed rectangular coordinates

Rectangular Cartesian coordinates in which the coordinates

*x*,*y*, and*z*are measured along three mutually perpendicular axes such that a rotation of the positive*x*axis into the positive*y*axis will drive a right-handed screw in the direction of the positive*z*axis.The Cartesian coordinates most often used in meteorology form a right-handed system:

*x*increasing to east,*y*to north,*z*to zenith.