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TROU MERIDIEN [2 records]
Record 1 - internal organization data 2012-03-15
Record 1, English
Record 1, Subject field(s)
- Glaciology
- Geomorphology and Geomorphogeny
Record 1, Main entry term, English
- meridian hole
1, record 1, English, meridian%20hole
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The meridian holes are semi-circular hollows, invariably having the arc turned to the north, and the chord to the south; thus serving as compasses and sundials to travelers. They are produced by the heat of the sun's rays upon small accumulations of gravel. The pebbles absorb more heat than the ice, and hence sink into the ice where the sun's rays act the longest, and with the greatest intensity. 1, record 1, English, - meridian%20hole
Record 1, French
Record 1, Domaine(s)
- Glaciologie
- Géomorphologie et géomorphogénie
Record 1, Main entry term, French
- trou méridien
1, record 1, French, trou%20m%C3%A9ridien
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Une petite pierre isolée sur un glacier s’échauffe au soleil et fond la glace sous elle, creusant un trou. Par suite du mouvement apparent du soleil dans le ciel ces trous sont semi-circulaires, ayant leur arc tourné au nord et la corde de leur arc au sud. Ces trous [...] sont appelés trous méridiens. 1, record 1, French, - trou%20m%C3%A9ridien
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2003-09-09
Record 2, English
Record 2, Subject field(s)
- Magnetism
- Geophysics
- Surveying
Record 2, Main entry term, English
- declination
1, record 2, English, declination
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- variation 2, record 2, English, variation
correct
- magnetic declination 3, record 2, English, magnetic%20declination
correct
- angle of declination 4, record 2, English, angle%20of%20declination
- declination angle 5, record 2, English, declination%20angle
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The angle between the magnetic and geographical meridians, expressed in degrees and minutes east or west to indicate the direction of magnetic north from true north. 3, record 2, English, - declination
Record number: 2, Textual support number: 1 CONT
... the declination from true north is called the compass error (by mariners) the variation, or the declination (D); it may be eastward (and is then reckoned positive) or westward (negative). 6, record 2, English, - declination
Record 2, French
Record 2, Domaine(s)
- Magnétisme
- Géophysique
- Arpentage
Record 2, Main entry term, French
- déclinaison
1, record 2, French, d%C3%A9clinaison
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- déclinaison magnétique 2, record 2, French, d%C3%A9clinaison%20magn%C3%A9tique
correct, feminine noun
- angle de déclinaison 2, record 2, French, angle%20de%20d%C3%A9clinaison
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
L’angle des méridiens géographique et magnétique en un point, qui se mesure en déterminant les azimuts de ces deux méridiens par rapport à un même cercle divisé horizontal et en prenant la différence de ces azimuts. 3, record 2, French, - d%C3%A9clinaison
Record number: 2, Textual support number: 2 DEF
Angle qu’une aiguille magnétique fait avec le méridien géographique. 2, record 2, French, - d%C3%A9clinaison
Record number: 2, Textual support number: 1 OBS
La déclinaison est dite est ou ouest selon que la partie nord de l'aiguille pointe vers le méridien géographique est ou ouest. La déclinaison peut également désigner la déviation d’un trou de forage, exprimée en degrés. 2, record 2, French, - d%C3%A9clinaison
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Magnetismo
- Geofísica
- Agrimensura
Record 2, Main entry term, Spanish
- declinación magnética
1, record 2, Spanish, declinaci%C3%B3n%20magn%C3%A9tica
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- ángulo de declinación 2, record 2, Spanish, %C3%A1ngulo%20de%20declinaci%C3%B3n
masculine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Ángulo que forma la dirección del norte verdadero con la del norte magnético. 1, record 2, Spanish, - declinaci%C3%B3n%20magn%C3%A9tica
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