Rual Pierre. (1989). For a better XBT bathy-message on board quality control, plus a new data reduction method. In :
Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.). Western Pacific international meeting and workshop on Toga Coare : proceedings. Nouméa : ORSTOM, p. 823-833. Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30.
Titre du document
For a better XBT bathy-message on board quality control, plus a new data reduction method
Année de publication
1989
Type de document
Colloque
Auteurs
Rual Pierre
In
Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.)Western Pacific international meeting and workshop on Toga Coare : proceedings
Source
Nouméa : ORSTOM, 1989,
p. 823-833
Colloque
Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30
To improve the quality of the bathy-messages, sent to the Global Transmission System of the World Weather Watch via the Argos satellite, by ORSTOM C.L.S. service Argos software onboards ships of opportunity, the following operations are implemented : i) a combination of a nonlinear median filter in order to despike the eXpandable BathyThermogramme profile prior to onboard quality control, ii) plus a linear Hanning filter, to filter out the small scale features before using the Broken stick data reduction method (that gives directly the required number of significant data point without iteration), iii) and a final regression fit. Only bathy-messages are computed only to the deph of the deepest "good" data point. So very few bathymessages are rejected later on, during the successive quality controls. (Résumé d'auteur)
Plan de classement
Technologie / Méthodologie [032TECHNO]
;
Océanographie [126TELAPP05]
Descripteurs
TRANSMISSION DE DONNEES ; PROFIL DE TEMPERATURE ; SYSTEME ARGOS ; XBT ; CONTROLE DE QUALITE
