TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
REFLECTANCE SOL [3 records]
Record 1 - internal organization data 2007-01-31
Record 1, English
Record 1, Subject field(s)
- Remote Sensing
Record 1, Main entry term, English
- ground reflectance
1, record 1, English, ground%20reflectance
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
reflectance: The proportion of the light incident upon a surface, which is reflected or scattered by it. 2, record 1, English, - ground%20reflectance
Record number: 1, Textual support number: 2 OBS
ground reflectance: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 3, record 1, English, - ground%20reflectance
Record 1, French
Record 1, Domaine(s)
- Télédétection
Record 1, Main entry term, French
- réflectance au sol
1, record 1, French, r%C3%A9flectance%20au%20sol
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- réflectance du sol 2, record 1, French, r%C3%A9flectance%20du%20sol
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Réflectance mesurée au niveau du sol. 3, record 1, French, - r%C3%A9flectance%20au%20sol
Record number: 1, Textual support number: 1 OBS
réflectance : Rapport de l’énergie réfléchie par un milieu matériel à l’énergie incidente. La réflectance s’applique à la réflexion spéculaire ou à la réflexion diffuse. 4, record 1, French, - r%C3%A9flectance%20au%20sol
Record number: 1, Textual support number: 2 OBS
réflectance au sol : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2(GTTR). 5, record 1, French, - r%C3%A9flectance%20au%20sol
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Teledetección
Record 1, Main entry term, Spanish
- reflectancia de suelo
1, record 1, Spanish, reflectancia%20de%20suelo
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2006-08-08
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
- Space Physics
Record 2, Main entry term, English
- reflectance
1, record 2, English, reflectance
correct, officially approved
Record 2, Abbreviations, English
Record 2, Synonyms, English
- reflection factor 2, record 2, English, reflection%20factor
correct, see observation, obsolete
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Ratio of the radiant or luminous flux reflected by a particular surface to that incident on it. 3, record 2, English, - reflectance
Record number: 2, Textual support number: 1 OBS
Reflectance: formerly reflection factor. 4, record 2, English, - reflectance
Record number: 2, Textual support number: 2 OBS
reflectance: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 5, record 2, English, - reflectance
Record number: 2, Textual support number: 1 PHR
Bidirectional reflectance factor. 5, record 2, English, - reflectance
Record number: 2, Textual support number: 2 PHR
Ground, plant, rock, snow, water reflectance. 5, record 2, English, - reflectance
Record 2, Key term(s)
- factor of reflection
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
- Physique spatiale
Record 2, Main entry term, French
- réflectance
1, record 2, French, r%C3%A9flectance
correct, feminine noun, officially approved
Record 2, Abbreviations, French
Record 2, Synonyms, French
- facteur de réflexion 2, record 2, French, facteur%20de%20r%C3%A9flexion
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Rapport du flux énergétique ou lumineux réfléchi par une surface donnée au flux incident sur celle-ci. 3, record 2, French, - r%C3%A9flectance
Record number: 2, Textual support number: 1 OBS
réflectance : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 4, record 2, French, - r%C3%A9flectance
Record number: 2, Textual support number: 1 PHR
Réflectance bidirectionnelle. 4, record 2, French, - r%C3%A9flectance
Record number: 2, Textual support number: 2 PHR
Réflectance de la neige, de l'eau, des plantes, des roches, du sol. 4, record 2, French, - r%C3%A9flectance
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física de la atmósfera
- Física espacial
Record 2, Main entry term, Spanish
- reflectancia
1, record 2, Spanish, reflectancia
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- factor de reflexión 1, record 2, Spanish, factor%20de%20reflexi%C3%B3n
masculine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Relación entre el flujo radiante o luminoso reflejado por una superficie dada y el flujo que incide sobre ella. 1, record 2, Spanish, - reflectancia
Record 3 - internal organization data 2003-04-02
Record 3, English
Record 3, Subject field(s)
- Scientific Measurements and Analyses
- Heat (Physics)
- Plant and Crop Production
- Remote Sensing
Record 3, Main entry term, English
- photochemical reflectance index
1, record 3, English, photochemical%20reflectance%20index
correct
Record 3, Abbreviations, English
- PRI 2, record 3, English, PRI
correct
Record 3, Synonyms, English
- physiological reflectance index 3, record 3, English, physiological%20reflectance%20index
former designation, correct
- PRI 3, record 3, English, PRI
correct
- PRI 3, record 3, English, PRI
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The Photochemical Reflectance Index: An optical indicator of photosynthetic radiation use efficiency across species, functional types, and nutrient levels ... 4, record 3, English, - photochemical%20reflectance%20index
Record number: 3, Textual support number: 2 CONT
... a new suite of indices have been developed that exploits narrow band spectroradiometric data. The physiological reflectance index (PRI) introduced by Gamon et al. (1992) follows the form of equation 1 and is based on reflectances at 531 nm (band 1) and 570 nm (band 2) wavelengths. Gamon et al. (1997) renamed this the photochemical reflectance index and suggested that the index was a good predictor of photosynthetic radiation use efficiency at the leaf or canopy level, if the canopy is uniform and completely covers the soil background. The index has not shown sensitivity to nutrient stress, but it is affected by water stress with severe wilting ... 3, record 3, English, - photochemical%20reflectance%20index
Record number: 3, Textual support number: 3 CONT
Heating treatments increase aboveground net primary production (detectable via the Normalized Difference Vegetation Index, a measure of green biomass) and enhance gross photosynthesis (detectable via the Photochemical Reflectance Index, a measure of xanthophyll cycle pigment activity and relative photosynthetic rate). ... Heating enhanced the Photochemical Reflectance Index (PRI) slightly relative to that of controls. This enhancement was most visible near noon, and relaxed by 3:00 pm ..., suggesting that this effect was a temporally dynamic one reflecting altered physiological activity towards midday. 5, record 3, English, - photochemical%20reflectance%20index
Record 3, French
Record 3, Domaine(s)
- Mesures et analyse (Sciences)
- Chaleur (Physique)
- Cultures (Agriculture)
- Télédétection
Record 3, Main entry term, French
- indice de réflectance
1, record 3, French, indice%20de%20r%C3%A9flectance
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- indice de réflectance PRI 2, record 3, French, indice%20de%20r%C3%A9flectance%20PRI
masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Dans le but d’évaluer la possibilité de mesurer les indices de vigueur des forêts à partir de la réflectance spectrale foliaire, [...] Nous avons mesuré la réflectance des pousses des sapins baumiers de chacun des traitements en laboratoire au moyen d’un spectroradiomètre portatif dont la gamme spectrale s’étendait de 350 nm à 2 500 nm. [...] La plupart des gammes d’ondes ont révélé que les traitements avaient eu des effets marqués, et les gammes d’ondes les plus significatives se trouvaient dans la région d’absorption de la chlorophylle entre 500 nm et 740 nm. [...] Les traitements ont influé sur les indices de réflectance, qui sont définis comme le rapport et l’écart normalisé entre la gamme d’ondes la plus significative à 711 nm et la gamme d’ondes la moins significative à 913 nm (P < 0,0001). 3, record 3, French, - indice%20de%20r%C3%A9flectance
Record number: 3, Textual support number: 2 CONT
[...] nous avons montré que les variations de l’indice de réflectance PRI (physiological reflectance index) étaient liées aux mécanismes de dissipation thermique de l’excès d’énergie absorbée par la végétation et pouvaient être appliquées à la détection du stress hydrique chez la vigne. 2, record 3, French, - indice%20de%20r%C3%A9flectance
Record number: 3, Textual support number: 3 CONT
Des mesures prises au radiomètre sur les tertres de la Butte aux Pierres permettront [...] de coupler les longueurs d’ondes obtenues au sol avec celles du satellite Spot-dont nous utilisons les «images» pour repérer les tertres sablo-terreux en contexte marécageux, et ce grâce aux indices de réflectance distincts selon les qualités de terrain analysées par le biais de l'informatique. 4, record 3, French, - indice%20de%20r%C3%A9flectance
Record 3, Spanish
Record 3, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: