Surveying Glossary — Letter N

Nyckelbegrepp inom professionell mätning och geospatial teknik.

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NAD83

NAD83 er det primære horisontale referansedatumen som brukes i Nord-Amerika for kartlegging og GPS-posisjoneringssystemer.

Nadir Imagery

Aerial photography taken directly downward from an aircraft or satellite, perpendicular to the Earth's surface, producing images with minimal distortion.

nadir point

The point on the ground directly below the camera or sensor at the moment of image capture in aerial surveying.

Nationale Raster

Ein koordiniertes System von Vermessungspunkten, das ein Land zur Georeferenzierung und kartografischen Grundlage verwendet.

Navisworks Coordination Survey

A specialized surveying methodology that integrates Autodesk Navisworks software with field survey data to coordinate and validate construction and infrastructure projects in three-dimensional space.

NDVI

Indice de vegetacion de diferencia normalizada que mide la salud y densidad de la vegetacion usando datos espectrales de sensores remotos.

Network Adjustment

The mathematical process of distributing measurement errors across a surveying network to obtain the most probable coordinates for all points.

nivelación

Proceso de medición de diferencias de altura entre puntos para determinar elevaciones relativas o absolutas en la tierra.

noise filter

A device or algorithm that removes unwanted sound frequencies or electrical interference from surveying measurements and data.

normal distribution transform

A statistical method used in surveying to transform spatial data into a normalized probability distribution for analysis and comparison.

NSRS

NSRS ay ang National Spatial Reference System na nagbibigay ng coordinate framework para sa lahat ng surveying at mapping activities sa United States.

NTRIP

NTRIP is a protocol for transmitting GNSS correction data over the internet to enable real-time precise positioning in surveying and mapping applications.