RONIM
Réseaux d'observation du niveau de la mer (SHOM) (SHOM's sea level observation network).
ROSAME
Réseau d'Observation Subantarctique et Antarctique du niveau de la MER (LEGOS) (Sub-Antarctic and Antarctic sea level observation network).
Rule of sixths:
Expeditive method for calculating the current knowing its amplitude and the time of the maximum.
Saros
Period of 6585.3211 days corresponding to 223 lunations. At the end of this period, the Moon, the Sun, the node of the lunar orbit and the lunar perigee are in roughly the same relative situation.
SATANEM
Système d'Alerte aux Tsunamis en Atlantique Nord-Est et Méditerranée (North-East Atlantic and Mediterranean tsunami alert system).
SATOI
Système d'Alerte aux Tsunamis dans l'Océan Indien (Indian Ocean tsunami alert system).
SCHAPI
Service Central d'Hydrométéorologie et d'Appui à la prévision des inondations (Central hydrometrology and flood forecasting support system).
Semi-diurnal tide
Two high waters and two low waters per day; the diurnal components are negligible.
Semidiurnal tide with diurnal inequalities
Two high waters and two low waters per day; the semi-diurnal components are dominant.
Sensor
Device that detects a physical phenomenon, in the form of a signal (usually electrical) in order to quantify and display it.
SGMer
Secrétariat Général de la MER (General secretariat for the sea).
SHC/CHS
Service Hydrographique Canadien/Canadian Hydrographic Service.
SHOM
Service Hydrographique et Océanographique de la Marine (French navy hydrographic and oceanographic service).
Sidereal day
Period of the Earth's rotation from vernal point to vernal point.
Sidereal revolution
Temps nécessaire pour que la longitude moyenne de la Lune, comptée à partir d'un équinoxe fixe, augmente de 360°. Elle est égale à 27j 7h 43min.
Situation
Delay, measured as an angle between the maximum of the component and the maximum action of the corresponding element of the generating potential. This notion has been generalized for interaction components.
SMT/GTS
Système Mondial de Télécommunication/Global Telecommunications System.
SO-INSU
Service d'Observation - Institut National des Sciences de l'Univers (Observation department of the national institute for universal sciences).
SOERE
Long term observation and experimentation system for environmental research.
Solar day
Period of passage to the centre of the Sun of a meridian half-plane linked to the Earth.