Damping well
Device in a tidal observatory designed to flatten the area of water and reduce rapid movements due to waves and swell.
DDE
Direction Départementale de l'Equipement (county council infrastructure directorate).
DDEA 14 / SRAN
Direction Départementale de l'Equipement et de l'Agriculture du Calvados / Service Réglementation et activités nautiques (county council infrastructure and agricultural directorate for the Calvados department / Regulatory and nautical activities department)DDTM: Direction Départementale des Territoires et de la Mer (county council territorial and maritime department).
Declination
Angle between the celestial body and the equatorial plane.
DéGéOM
Délégation générale de l'Outre-Mer (general delegation for overseas territories).
DGEC/ONERC
Direction générale de l'énergie et du climat / Observatoire national sur les effets du réchauffement climatique (general directorate for energy and climate / National observatory of the effects of global warming).
DGM
Direction générale de la météorologie (Madagascar) (general directorate for meteorology (Madagascar)).
DGPR
Direction générale de la prévention des risques (general directorate for risk prevention).
Diurnal tide
One high water and one low water per day; the semi-diurnal components are negligible.
DMS
Demande de mise en service (commissioning request).
DMSOI
Direction de la Mer Sud Océan Indien (Directorate for the Sea – Southern Indian Ocean).
Doodson number
Another name for an argument number.
DRE
Direction régionale de l'Equipement (regional infrastructure directorate).
DREAL-LR
Direction régionale de l'environnement, de l'aménagement et du logement - Languedoc-Roussillon (regional directorate for infrastructure, development and housing – Languedoc-Roussillon).
Drift current
Current generated by the wind.
DSC
Direction de la Sécurité Civile (directorate of civil safety).