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ZENITH ANGLE [8 records]
Record 1 - internal organization data 2023-02-28
Record 1, English
Record 1, Subject field(s)
- Meteorology
Record 1, Main entry term, English
- cloud reflection
1, record 1, English, cloud%20reflection
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Cloud reflection is calculated at an angular resolution of 10 [degrees] along the azimuth and 0. 04 along the cosine of the viewing zenith angle. 2, record 1, English, - cloud%20reflection
Record 1, French
Record 1, Domaine(s)
- Météorologie
Record 1, Main entry term, French
- réflexion des nuages
1, record 1, French, r%C3%A9flexion%20des%20nuages
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2015-04-09
Record 2, English
Record 2, Subject field(s)
- Astronomy
- Scientific Instruments
Record 2, Main entry term, English
- emulsion chamber
1, record 2, English, emulsion%20chamber
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
By means of the emulsion chambers exposed at shallow depth underground, the energy spectrum and the zenith angle distribution are measured for high-energy showers induced by cosmic-ray muons.... The emulsion chamber is constituted by lead absorber and photosensitive layers, piled up alternately. In the emulsion chamber with typical constitution, each photosensitive layer, which is interposed at every layer of lead 1 cm thick, consists of a nuclear emulsion plate... and two sheets of industrial X-ray films... 1, record 2, English, - emulsion%20chamber
Record number: 2, Textual support number: 2 CONT
When high-energy showers are produced by muons in the emulsion chambers, they are recorded as black spots on X-ray films. 1, record 2, English, - emulsion%20chamber
Record 2, French
Record 2, Domaine(s)
- Astronomie
- Instruments scientifiques
Record 2, Main entry term, French
- chambre à émulsion
1, record 2, French, chambre%20%C3%A0%20%C3%A9mulsion
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Plusieurs équipes dans le monde ont [...] persévéré dans l'étude expérimentale des rayons cosmiques. [...] Les altitudes supérieures à 5 000 mètres [...]ont permis de nouvelles études, grâce entre autres à la mise au point de nouveaux détecteurs légers, les «chambres à émulsion» réalisées par les Japonais, et qui ne pèsent que 20 à 35 kilogrammes [...]. Les chambres sont constituées par des «sandwiches» de plomb et d'émulsions photographiques spéciales, que l'on développe après exposition aux rayons cosmiques. 2, record 2, French, - chambre%20%C3%A0%20%C3%A9mulsion
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2014-10-30
Record 3, English
Record 3, Subject field(s)
- Remote Sensing
Record 3, Main entry term, English
- canopy gap fraction
1, record 3, English, canopy%20gap%20fraction
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- gap fraction 1, record 3, English, gap%20fraction
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The percentage of gaps in the canopy at a given zenith angle. 1, record 3, English, - canopy%20gap%20fraction
Record number: 3, Textual support number: 1 CONT
TRAC [Tracing Radiation and Architecture of Canopies] is an optical instrument for measuring LAI [Leaf Area Index]. TRAC measures canopy gap size distribution in addition to canopy gap fraction. 1, record 3, English, - canopy%20gap%20fraction
Record number: 3, Textual support number: 1 OBS
[The gap fraction] is usually obtained from radiation transmittance. 1, record 3, English, - canopy%20gap%20fraction
Record 3, French
Record 3, Domaine(s)
- Télédétection
Record 3, Main entry term, French
- fraction de trous du couvert forestier
1, record 3, French, fraction%20de%20trous%20du%20couvert%20forestier
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- fraction de trous 1, record 3, French, fraction%20de%20trous
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Pourcentage de trous [du couvert forestier] à un angle zénithal donné. 1, record 3, French, - fraction%20de%20trous%20du%20couvert%20forestier
Record number: 3, Textual support number: 1 CONT
TRAC [Tracing Radiation and Architecture of Canopies] est un instrument optique qui sert à mesurer l'ISF [Indice de surface foliaire]. Il mesure la distribution de la taille des trous en plus de la fraction de trous du couvert forestier. 1, record 3, French, - fraction%20de%20trous%20du%20couvert%20forestier
Record number: 3, Textual support number: 1 OBS
On l'obtient généralement en mesurant la transmittance de la lumière. 1, record 3, French, - fraction%20de%20trous%20du%20couvert%20forestier
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2010-12-10
Record 4, English
Record 4, Subject field(s)
- Mathematical Geography
- Metrology and Units of Measure
- Practical Astronomy
Record 4, Main entry term, English
- zenith distance
1, record 4, English, zenith%20distance
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- zenithal distance 2, record 4, English, zenithal%20distance
correct
- zenith angle 3, record 4, English, zenith%20angle
correct
- zenithal angle 4, record 4, English, zenithal%20angle
correct
- coaltitude 5, record 4, English, coaltitude
correct, see observation
- co-altitude 6, record 4, English, co%2Daltitude
correct, see observation
- complement of altitude 2, record 4, English, complement%20of%20altitude
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The vertical angle between the zenith and the object which is observed or defined. 7, record 4, English, - zenith%20distance
Record number: 4, Textual support number: 1 OBS
The term zenith distance is more often used in astronomy and is the complement of the altitude. That is: 0° in the zenith, 90° on the horizon, up to 180° at the nadir. 8, record 4, English, - zenith%20distance
Record number: 4, Textual support number: 2 OBS
coaltitude: The complement of altitude, or 90 minus the altitude. The term has significance only when used in connection with altitude measured from the celestial horizon, when it is synonymous with zenith distance. 5, record 4, English, - zenith%20distance
Record number: 4, Textual support number: 3 OBS
zenith distance: term used at Natural Resources Canada - Earth Sciences Sector. 9, record 4, English, - zenith%20distance
Record 4, French
Record 4, Domaine(s)
- Géographie mathématique
- Unités de mesure et métrologie
- Astronomie pratique
Record 4, Main entry term, French
- angle zénithal
1, record 4, French, angle%20z%C3%A9nithal
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- distance zénithale 2, record 4, French, distance%20z%C3%A9nithale
correct, see observation, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Angle plan formé par la direction d'un objet et la direction du zénith du point d'observation. 3, record 4, French, - angle%20z%C3%A9nithal
Record number: 4, Textual support number: 1 CONT
La distance zénithale est la distance angulaire entre le zénith et un point de la sphère céleste, mesurée suivant un méridien. 4, record 4, French, - angle%20z%C3%A9nithal
Record number: 4, Textual support number: 1 OBS
La distance zénithale est le complément angulaire de la hauteur. 3, record 4, French, - angle%20z%C3%A9nithal
Record number: 4, Textual support number: 2 OBS
distance zénithale : Expression non conseillée. 5, record 4, French, - angle%20z%C3%A9nithal
Record number: 4, Textual support number: 3 OBS
distance zénithale; angle zénithal : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 6, record 4, French, - angle%20z%C3%A9nithal
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2005-07-18
Record 5, English
Record 5, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
Record 5, Main entry term, English
- depression angle
1, record 5, English, depression%20angle
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- depression 2, record 5, English, depression
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The angle between the horizon and a point below, measured along the arc that passes through the point in question and is perpendicular to the horizon. 2, record 5, English, - depression%20angle
Record number: 5, Textual support number: 1 OBS
The depression angle is the zenith distance of the point in question minus 90°. 2, record 5, English, - depression%20angle
Record 5, Key term(s)
- angle of depression
Record 5, French
Record 5, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
Record 5, Main entry term, French
- angle de dépression
1, record 5, French, angle%20de%20d%C3%A9pression
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Angle compris entre l'horizon et un point au-dessous et au-delà de l'horizon, mesuré sur l'arc qui passe par ce point et qui est perpendiculaire à l'horizon. 1, record 5, French, - angle%20de%20d%C3%A9pression
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2005-03-18
Record 6, English
Record 6, Subject field(s)
- Launching and Space Maneuvering
- Meteorological Forecasting, Data Measurement and Analysis
Record 6, Main entry term, English
- satellite zenith angle
1, record 6, English, satellite%20zenith%20angle
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
Angle measured at the Earth's surface between the satellite and the zenith. 1, record 6, English, - satellite%20zenith%20angle
Record 6, Key term(s)
- satellite zenithal angle
Record 6, French
Record 6, Domaine(s)
- Lancement et manœuvres dans l'espace
- Prévisions météorologiques et mesure et analyse des données
Record 6, Main entry term, French
- angle zénithal du satellite
1, record 6, French, angle%20z%C3%A9nithal%20du%20satellite
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Angle mesuré à la surface de la Terre entre le satellite et le zénith. 2, record 6, French, - angle%20z%C3%A9nithal%20du%20satellite
Record number: 6, Textual support number: 1 CONT
L'extraction de la température superficielle à partir des mesures du satellite doit donc être corrigée pour l'absorption atmosphérique et dépend de l'émissivité de la surface qui varie principalement suivant l'angle zénithal du satellite. 3, record 6, French, - angle%20z%C3%A9nithal%20du%20satellite
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Lanzamiento y maniobras en el espacio
- Previsiones meteorológicas, medición y análisis de datos
Record 6, Main entry term, Spanish
- ángulo cenital del satélite
1, record 6, Spanish, %C3%A1ngulo%20cenital%20del%20sat%C3%A9lite
masculine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Angulo medido sobre la superficie de la Tierra entre el satélite y el cenit. 1, record 6, Spanish, - %C3%A1ngulo%20cenital%20del%20sat%C3%A9lite
Record 7 - internal organization data 1999-12-06
Record 7, English
Record 7, Subject field(s)
- Climate Change
Record 7, Main entry term, English
- signal-to-noise ratio
1, record 7, English, signal%2Dto%2Dnoise%20ratio
correct
Record 7, Abbreviations, English
- SNR 2, record 7, English, SNR
correct
- S/N 3, record 7, English, S%2FN
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A ratio that measures the comprehensibility of data, usually expressed as the signal power divided by the noise power, usually expressed in decibels (dB). 2, record 7, English, - signal%2Dto%2Dnoise%20ratio
Record number: 7, Textual support number: 1 CONT
The detection problem can be viewed in terms of the concept of the signal-to-noise ratio, i.e. one can claim to have detected a change in climate once the signal (e.g. the increasing temperature) has risen appreciably above the background noise level (e.g. natural variability of temperature). 4, record 7, English, - signal%2Dto%2Dnoise%20ratio
Record number: 7, Textual support number: 2 CONT
Signal-to-noise ratio. ... For first detection of a CO2-induced climate change, the model signal is the mean change or anomaly in some climatic variable, usually surface air temperature, attributed by a numerical model to increased concentrations of carbon dioxide. Observed noise is the standard deviation or natural variability computed from observations of that variable and adjusted for sample size, autocorrelation, and time averaging. 5, record 7, English, - signal%2Dto%2Dnoise%20ratio
Record number: 7, Textual support number: 1 OBS
Signal-to-noise ratio... For MODIS, the ratio between(1) typical cloud free scene brightness with solar zenith angle Z=70 deg, and(2) all sensor and processing noise contributions. S/N specifications for various scenes(e. g., land, clouds, oceans, ice) are only applicable in the filter bands associated with those scenes. 3, record 7, English, - signal%2Dto%2Dnoise%20ratio
Record 7, French
Record 7, Domaine(s)
- Changements climatiques
Record 7, Main entry term, French
- rapport signal à bruit
1, record 7, French, rapport%20signal%20%C3%A0%20bruit
correct, see observation, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
WIND (Wind INfrared Doppler lidar) a pour but de déterminer la vitesse d'aérosol a basse altitude (1 à 10 km) à partir d'un lidar embarqué. [...] La contribution de l'équipe a été de proposer des algorithmes robustes de détection et d'estimation de la fréquence Doppler. Compte tenu du rapport signal à bruit (RSB) «important», supérieur à -5 dB, une modélisation approximative (notch filter) du signal lidar suffit pour obtenir des résultats satisfaisants. [...] La réalisation de l'instrument est à la charge du Laboratoire de Météorologie Dynamique (LMD). 1, record 7, French, - rapport%20signal%20%C3%A0%20bruit
Record number: 7, Textual support number: 1 OBS
Théorie de la détection du signal : dans cette théorie, on décrit le «signal» (stimulus à identifier ou souvenir à reconnaître) comme une distribution statistique sur un ensemble de valeurs d'abscisse, et le «bruit» (autres stimulations ou autres souvenirs) de la même façon; ce sont les relations entre ces distributions, et les critères de décision adoptés par le sujet, qui gouvernent la détection. 2, record 7, French, - rapport%20signal%20%C3%A0%20bruit
Record number: 7, Textual support number: 2 OBS
Cette théorie qui connaît différentes applications, en radiotélécommunication notamment mais aussi en sismologie, est également utilisée en climatologie; chacune de ces sciences a établi des critères précis afin de l'utiliser à ses propres fins. Le climat subit des variations qui répondent à des cycles connus et que la statistique permet de distinguer; les climatologues croient que ces bruits, les variations naturelles, s'ils sont d'abord identifiés permettront ensuite de laisser voir le véritable signal confirmant que l'effet de serre anthropique est bien en cours. 3, record 7, French, - rapport%20signal%20%C3%A0%20bruit
Record number: 7, Textual support number: 3 OBS
De façon générale, toutes les expressions utilisées en radiotélécommunication, pour désigner la notion spécifique à ce domaine, pourraient aussi s'employer en climatologie : rapport signal/bruit, signal sur bruit, entre signal et bruit, etc. 3, record 7, French, - rapport%20signal%20%C3%A0%20bruit
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1992-12-31
Record 8, English
Record 8, Subject field(s)
- Atmospheric Physics
Record 8, Main entry term, English
- solar zenith angle
1, record 8, English, solar%20zenith%20angle
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- solar zenithal angle 2, record 8, English, solar%20zenithal%20angle
correct
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
Angle measured at the Earth's surface between the Sun and the zenith. 1, record 8, English, - solar%20zenith%20angle
Record 8, French
Record 8, Domaine(s)
- Physique de l'atmosphère
Record 8, Main entry term, French
- angle zénithal du Soleil
1, record 8, French, angle%20z%C3%A9nithal%20du%20Soleil
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 DEF
Angle mesuré à la surface de la Terre entre le Soleil et le zénith. 1, record 8, French, - angle%20z%C3%A9nithal%20du%20Soleil
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Física de la atmósfera
Record 8, Main entry term, Spanish
- ángulo cenital solar
1, record 8, Spanish, %C3%A1ngulo%20cenital%20solar
masculine noun
Record 8, Abbreviations, Spanish
Record 8, Synonyms, Spanish
Record 8, Textual support, Spanish
Record number: 8, Textual support number: 1 DEF
Angulo medido sobre la superficie de la Tierra entre el Sol y el cenit. 1, record 8, Spanish, - %C3%A1ngulo%20cenital%20solar
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