TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

GOES-9, a three axis stabilized spacecraft, remains stationary in space which allows the [imager and sounder] instruments to be continuously pointed at the earth. The scanning system moves back and forth(i. e., east to west and then west to east) as it moves north to south. While the spacecraft is stationary, it is not absolutely still. Earth location and registration accuracy are [affected] by orbital motions, instrument motion, and thermal distortion. A complicated set of navigation(earth location) and registration(image-to-image location of a landmark) correction schemes are necessary to compensate for these effects.... The registration schemes briefly are : 1) image motion compensation(IMC) and 2) mirror motion compensation(MMC). The IMC removes spacecraft orbit and attitude motion from each image. The MMC automatically corrects for the predictable effects of the instrument mirror motions.  3, record 1, English, - mirror%20motion%20compensation

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Preprocessing is an important and diverse set of image preparation programs that act to offset problems with the band data and recalculate DN [Digital Number] values that minimize these problems. Among the programs that optimize these values are atmospheric correction(affecting the DNs of surface materials because of radiance from the atmosphere itself, involving attenuation and scattering) ;Sun illumination geometry; surface-induced geometric distortions; spacecraft velocity and attitude variations(roll, pitch, and yaw) ;effects of Earth rotation, elevation, curvature(including skew effects), abnormalities of instrument performance(irregularities of detector response and scan mode such as variations in mirror oscillations) ;loss of specific scan lines(requires destriping), and others. Once performed on the raw data, these adjustments require appropriate radiometric and geometric corrections.  2, record 2, English, - preprocessing

Record number: 2, Textual support number: 1 OBS

preprocessing: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, record 2, English, - preprocessing

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

La première étape de prétraitement des données SAR correspond à la transformation des données 16 bits en données 8 bits et ce, afin de faciliter la manipulation ainsi que la combinaison avec les autres données optiques qui sont, généralement, sur 8 bits. La deuxième étape consiste à réduire le châtoiement inhérent aux images SAR [radar à synthèse d'ouverture] [...] La troisième étape comprend le prétraitement des données TM [Thematic Mapper] de Lansat dont le but vise essentiellement l'amélioration de la qualité des images. Cette étape est effectuée en trois phases : la superposition géométrique, le géocodage des images optiques comparées à une image SAR disponible de type GEC [Geocoded Ellipsoid Corrected] et, enfin, le rééchantillonnage des pixels à une résolution de 25 m.  2, record 2, French, - pr%C3%A9traitement

Record number: 2, Textual support number: 1 OBS

prétraitement : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 2, French, - pr%C3%A9traitement

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Optical viewfinder in which the subject area is outlined by a bright frame produced by, e. g. reflecting a white frame on to a semi reflecting mirror in the optical path of the finder. The frame line may show parallax correction marks, field of view for two or more focal length lenses etc.  1, record 3, English, - bright%20line%20viewfinder

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Viseur à champ large dans lequel un trait lumineux qui épouse la forme d'un cadre délimite le champ enregistré.  2, record 3, French, - viseur%20%C3%A0%20cadre%20lumineux

Record 3,  Textual support,  Spanish