TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Although the scanning mirror rotates at a constant speed, the IFOV [instantaneous field of view] of the sensor moves faster(relative to the ground) and scans a larger area as it moves closer to the edges. This effect results in the compression of image features at points away from the nadir and is called tangential scale distortion.  1, record 1, English, - tangential%20scale%20distortion

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Même si le miroir permettant le balayage tourne à une vitesse constante, le CVI [champ de visée instantané] du capteur se déplace plus rapidement par rapport à la surface et capte une région plus grande lorsqu'il se déplace près des bords de l'image. Cet effet produit une compression des caractéristiques de l'image pour les points éloignés du nadir et s'appelle distorsion tangentielle d'échelle.  1, record 1, French, - distorsion%20tangentielle%20d%27%C3%A9chelle

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The solid angle through which a detector is sensitive to radiation ...  4, record 2, English, - instantaneous%20field%20of%20view

Record number: 2, Textual support number: 1 OBS

[The] instantaneous field of view is commonly expressed in milliradians.  4, record 2, English, - instantaneous%20field%20of%20view

Record number: 2, Textual support number: 2 OBS

instantaneous field of view; IFOV : term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group(RTAG).  5, record 2, English, - instantaneous%20field%20of%20view

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Cône d'analyse d'un détecteur.  4, record 2, French, - champ%20de%20vis%C3%A9e%20instantan%C3%A9

Record number: 2, Textual support number: 1 OBS

Le cône d'analyse correspond à cette portion de l'espace couverte par l'ouverture du collecteur de flux d'un détecteur.  5, record 2, French, - champ%20de%20vis%C3%A9e%20instantan%C3%A9

Record number: 2, Textual support number: 2 OBS

champ de visée instantané; IFOV : terme et abréviation uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  5, record 2, French, - champ%20de%20vis%C3%A9e%20instantan%C3%A9

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The smallest usable element of an image.  2, record 3, English, - spatial%20effective%20resolution%20element

Record number: 3, Textual support number: 1 CONT

For applications such as cartography, where it is important to precisely locate the correct position of features such as roads and boundaries, it has been difficult or impossible to evaluate the relative performance of different sensors through the standard specifications of IFOV [Instantaneous Field of View] or spatial resolution. In an effort to overcome this difficulty, a second concept... labeled spatial effective resolution element(SERE), is evolving. Although this concept is not fully developed, it provides an indication of the factors to be taken into account when attempting to correlate different systems. These factors include : surface area on the Earth, or its equivalent on the image plane, the IFOV and the spread function resulting from optical diffraction and aberrations as well as electronic lag or smear. Essentially, the concept of SERE is an attempt to determine the IFOV of the hypothetical, unsampled(ideal) scanning system which would yield performance equivalent to that of any given real sensor system. Whether such an equivalence exists is yet to be determined.  3, record 3, English, - spatial%20effective%20resolution%20element

Record number: 3, Textual support number: 1 OBS

spatial effective resolution element; SERE: term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 3, English, - spatial%20effective%20resolution%20element

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Plus petit élément utilisable de l'image.  1, record 3, French, - %C3%A9l%C3%A9ment%20de%20r%C3%A9solution%20spatiale%20efficace

Record number: 3, Textual support number: 1 OBS

élément de résolution spatiale efficace : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, record 3, French, - %C3%A9l%C3%A9ment%20de%20r%C3%A9solution%20spatiale%20efficace

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A sensor made up of a linear detector array of CCDs (Charge Coupled Devices) that obtains data in the platform’s direction of motion (azimuth or along-track dimension).  2, record 4, English, - along%2Dtrack%20scanner

Record number: 4, Textual support number: 1 CONT

Along-track scanners also use the forward motion of the platform to record successive scan lines and build up a two-dimensional image, perpendicular to the flight direction. However, instead of a scanning mirror, they use a linear array of detectors located at the focal plane of the image formed by lens systems, which are "pushed" along in the flight track direction (i.e. along track). These systems are also referred to as pushbroom scanners, as the motion of the detector array is analogous to the bristles of a broom being pushed along a floor.  3, record 4, English, - along%2Dtrack%20scanner

Record number: 4, Textual support number: 1 OBS

The sensor's instantaneous field of view extends the length of the swath width.  2, record 4, English, - along%2Dtrack%20scanner

Record number: 4, Textual support number: 2 OBS

along-track scanner; pushbroom scanner: terms officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 4, English, - along%2Dtrack%20scanner

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Capteur constitué d'une barrette de DTC (dispositifs à transfert de charge) qui collecte des données dans le sens de l'orbite de la plate-forme (en azimut ou en trajectoire longitudinale).  2, record 4, French, - dispositif%20de%20balayage%20longitudinal

Record number: 4, Textual support number: 1 OBS

Principe de fonctionnement d'un système à barrette de détecteurs. [...] Le balayage est donc longitudinal à la manière d'un balai poussé devant soi, d'où l'expression «push broom» employée par certains auteurs. Comme les détecteurs sont tous de la même dimension et disposés parallèlement au sol, les tachèles sur le terrain sont également identiques s'il n'y a pas de distorsions optiques dans l'objectif.  3, record 4, French, - dispositif%20de%20balayage%20longitudinal

Record number: 4, Textual support number: 2 OBS

Le balayage perpendiculaire à la trajectoire ratisse la Terre en une série de lignes. Le balayage s'effectue d'un côté du capteur à l'autre, en utilisant un miroir rotatif. La radiation atteignant le capteur est divisée en plusieurs composantes spectrales qui sont détectées séparément. L'UV, le visible, le proche infrarouge et l'infrarouge sont séparés selon leurs longueurs d'onde. Un ensemble de détecteurs internes, sensibles à chacune des bandes spectrales, mesurent et enregistrent l'énergie en convertissant le signal électrique produit par les détecteurs en données numériques.  4, record 4, French, - dispositif%20de%20balayage%20longitudinal

Record number: 4, Textual support number: 3 OBS

dispositif de balayage longitudinal : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  1, record 4, French, - dispositif%20de%20balayage%20longitudinal

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

[The] push-broom scanner [is a] type of imaging system... commonly used in optical remote sensing satellites such as SPOT. The imaging system has a linear detector array(usually of the CCD type) consisting of a number of detector elements(6000 elements in SPOT HRV). Each detector element projects an "instantaneous field of view(IFOV) "on the ground. The signal recorded by a detector element is proportional to the total radiation collected within its IFOV. At any instant, a row of pixels are formed. As the detector array flies along its track, the row of pixels sweeps along to generate a two-dimensional image.  2, record 5, English, - linear%20detector%20array

Record number: 5, Textual support number: 1 OBS

linear detector array: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, record 5, English, - linear%20detector%20array

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

La mission d'observation est réalisée par un instrument à barrette CCD [charged-coupled device] de type «push-broom» avec une visée au nadir : sous l'effet du défilement du satellite sur son orbite, une barrette de détecteurs carrés disposés en ligne acquiert successivement les différentes lignes permettant de reconstituer une image. La taille de chaque détecteur élémentaire et la période d'échantillonnage sont ajustées de telle manière qu'en une période d'échantillonnage le point subsatellite se déplace de la projection au sol d'un détecteur au nadir.  2, record 5, French, - barrette%20de%20d%C3%A9tecteurs

Record number: 5, Textual support number: 1 OBS

barrette de détecteurs : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 5, French, - barrette%20de%20d%C3%A9tecteurs

Record number: 5, Textual support number: 1 PHR

Capteur à barrette de détecteurs.  3, record 5, French, - barrette%20de%20d%C3%A9tecteurs

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

The Halogen Occultation Experiment(HALOE) was launched on the Upper Atmosphere Research Satellite UARS spacecraft September 12, 1991 as part of the Earth Science Enterprise(ESE) Program. The experiment uses solar occultation to measure vertical profiles of Ozone(O₃), Hydrogen Chloride(HCl), Hydrogen Fluoride(HF), Methane(CH₄), Water(H₂O), Nitric Oxide(NO), Nitrogen Dioxide(NO₂), Aerosol Extinction, Aerosol Surface and Temperature versus pressure with an instantaneous field of view of 1. 6 km at the earth limb.  2, record 6, English, - halogen%20occultation%20experiment

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

The POLDER(Polarization and Directionality of the Earth's Reflectances) instrument will observe the polarization, directional and spectral characteristics of the solar light reflected by aerosols, clouds, oceans and land surfaces. POLDER is a push broom, wide field of view, multi-band imaging radiometer/polarimeter developed by CNES. Multi-angle viewing is achieved by the along-track migration at the spacecraft velocity of a quasi-square footprint intercepted by the total instantaneous 114-degree wide field of view. This footprint is partitioned into 242x274 elements of quasi-constant 7kmx6km resolution, imaged by a CCD matrix in the focal plane.  2, record 7, English, - polarisation%20and%20directionality%20of%20the%20Earth%26rsquo%3Bs%20reflectances

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Projet d'instrument français pour Adeos (Japon).  1, record 7, French, - polarisation%20et%20directionnalit%C3%A9%20des%20r%C3%A9flectances

Record 7,  Textual support,  Spanish