Canadian Space Agency
The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.
Translation: modèle numérique d'altitude (MNA)
Definition: A representation of the topography of the Earth in digital format, that is, by coordinates and numerical descriptions of altitude.
Other Definition: None