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INTENSITE RETRODIFFUSION [4 records]
Record 1 - internal organization data 2007-01-31
Record 1, English
Record 1, Subject field(s)
- Space Physics
- Remote Sensing
Record 1, Main entry term, English
- backscattering coefficient
1, record 1, English, backscattering%20coefficient
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A microwave radar signal is emitted from an antenna installed aboard a satellite or an airplane. The signal is reflected by the objects on the ground. The resulting backscattering coefficient is influenced by the surface roughness and the dielectric properties of the objects. 2, record 1, English, - backscattering%20coefficient
Record number: 1, Textual support number: 1 OBS
dielectric: Having the property of transmitting electric effects without conduction. 3, record 1, English, - backscattering%20coefficient
Record number: 1, Textual support number: 2 OBS
backscattering coefficient: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 1, English, - backscattering%20coefficient
Record 1, Key term(s)
- back-scattering coefficient
Record 1, French
Record 1, Domaine(s)
- Physique spatiale
- Télédétection
Record 1, Main entry term, French
- coefficient de rétrodiffusion
1, record 1, French, coefficient%20de%20r%C3%A9trodiffusion
correct, masculine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'intensité d’une image radar [...] est liée au coefficient de rétrodiffusion, c'est-à-dire la capacité des surfaces à renvoyer les ondes radar vers l'antenne du radar. Le coefficient de rétrodiffusion est un indicateur de la rugosité des surfaces et de leur humidité. 2, record 1, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 1, Textual support number: 2 CONT
Le coefficient de rétrodiffusion radar est un des paramètres mesurables sur une image radar. [...] Sur une surface inondée(présence d’eau libre), la réflexion du signal est spéculaire et l'intensité rétrodiffusée quasiment nulle. Par contre, pour un sol partiellement saturé, plus la teneur en eau est élevée, plus la constante diélectrique est grande, donc moins l'onde pénètre dans le sol et plus l'intensité rétrodiffusée est forte. 3, record 1, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 1, Textual support number: 1 OBS
diélectrique : Qui ne conduit pas le courant électrique. 4, record 1, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 1, Textual support number: 2 OBS
spéculaire : Se dit de ce qui réfléchit la lumière comme un miroir. 5, record 1, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 1, Textual support number: 3 OBS
coefficient de rétrodiffusion : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 5, record 1, French, - coefficient%20de%20r%C3%A9trodiffusion
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física espacial
- Teledetección
Record 1, Main entry term, Spanish
- coeficiente de retrodispersión
1, record 1, Spanish, coeficiente%20de%20retrodispersi%C3%B3n
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- coeficiente de retrodifusión 2, record 1, Spanish, coeficiente%20de%20retrodifusi%C3%B3n
correct, masculine noun
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-08-30
Record 2, English
Record 2, Subject field(s)
- Modelling (Mathematics)
- Environmental Studies and Analyses
Record 2, Main entry term, English
- backscattering intensity
1, record 2, English, backscattering%20intensity
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Figure 2.14 shows backscattering intensity in the water column expressed in dB as a function of distance from the disposal point. 1, record 2, English, - backscattering%20intensity
Record 2, French
Record 2, Domaine(s)
- Modélisation (Mathématique)
- Études et analyses environnementales
Record 2, Main entry term, French
- intensité de rétrodiffusion
1, record 2, French, intensit%C3%A9%20de%20r%C3%A9trodiffusion
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Sur la figure 2. 14, on retrouve l'intensité de rétrodiffusion dans la colonne d’eau exprimée en dB en fonction de la distance transverse au site de déversement. 1, record 2, French, - intensit%C3%A9%20de%20r%C3%A9trodiffusion
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-08-30
Record 3, English
Record 3, Subject field(s)
- Hydrology and Hydrography
- Environmental Studies and Analyses
Record 3, Main entry term, English
- suspended-sediment concentration
1, record 3, English, suspended%2Dsediment%20concentration
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
This [backscattering] intensity had to be expressed as suspended-sediment concentration. 1, record 3, English, - suspended%2Dsediment%20concentration
Record 3, Key term(s)
- suspended sediment concentration
Record 3, French
Record 3, Domaine(s)
- Hydrologie et hydrographie
- Études et analyses environnementales
Record 3, Main entry term, French
- concentration de sédiments en suspension
1, record 3, French, concentration%20de%20s%C3%A9diments%20en%20suspension
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Il faut exprimer cette intensité [de rétrodiffusion] en concentration de sédiments en suspension. 1, record 3, French, - concentration%20de%20s%C3%A9diments%20en%20suspension
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1999-04-06
Record 4, English
Record 4, Subject field(s)
- Atmospheric Physics
- Atmospheric, Climatic and Meteorological Phenomena
- Hydrology and Hydrography
Record 4, Main entry term, English
- cloud distribution
1, record 4, English, cloud%20distribution
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Vapor to liquid and solid: Cloud feedback. The increased moisture from the warmer oceans should alter cloud distributions and characteristics. The nature of these cloud changes and how these changes will affect the radiative heating is unclear. The difficulty is the lack of a theory that can relate cloud scale processes to planetary scale features of clouds. As a result, cloud feedback is one of the largest sources of uncertainty in the theory of climate change. 2, record 4, English, - cloud%20distribution
Record 4, French
Record 4, Domaine(s)
- Physique de l'atmosphère
- Phénomènes météorologiques, climatiques et atmosphériques
- Hydrologie et hydrographie
Record 4, Main entry term, French
- distribution des nuages
1, record 4, French, distribution%20des%20nuages
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- répartition des nuages 2, record 4, French, r%C3%A9partition%20des%20nuages
correct, feminine noun
- distribution nuageuse 3, record 4, French, distribution%20nuageuse
feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Dans les lidars les plus simples, la seule quantité mesurée est l'intensité de la rétrodiffusion. Les principales informations fournies portent donc sur la hauteur de la couche-limite et la distribution des nuages en altitude. 1, record 4, French, - distribution%20des%20nuages
Record 4, Spanish
Record 4, Textual support, Spanish
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