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Simrad EK 500 / EY 500Reference target.Simrad supplies copper spheres designed as reference targets for thecalibration of scientific sounders. Copper is selected because it is a metalwhich can be made electrolytically with high purity. The spheres aremachined to the perfect spherical form with great accuracy, and a nylon loopis attached. Except for 12 kHz, 49 kHz and 50 kHz, the sphere diameter isdifferent for each frequency in order to obtain a target strength with minimumdependence of temperature (K. Foote 1983). A curve showing the variation ofthe target strength follows each sphere. The curve for the 38 kHz sphere isshown below as an illustration.Simrad copper spheresFrequencykHz12*18273849*50*70120200710* same sphereDiameter mm speed 1490 m/s dB45.063.042.060.045.045.032.123.013.710.3-40.4-34.4-37.9-33.6-36.4-36.2-39.1-40.4-45.0-50.5TARGET STRENGTH (dB)-34.5 -34.0 -33.5 -33.060 mm COPPER SPHERE38 kHz3.00.31400 1420 1440 1460 1480 1500 1520 1540 1560SOUND SPEED (m/s)(CD3146)msSIMRADoct.1991PULSE DURATIONFigure 2 Target strength of a 60 mm copper sphere.P2260/E 7
Calibration1550 m/s150014501400SOUND SPEED IN SEA WATERat depth 0 mMackenzie (1981) J.acoust.Soc.Am., 70,807-12.Del Grosso (1972) J.acoust.Soc.Am., 52,1442-6.Simrad sept. 19920 5 10 15 20 25 30WATER TEMPERATURE (deg. C)(CD467)Figure 3 Sound speed in water.SIMRAD sept. 1990from FRANCOIS & GARRISON JASA dec. 1982(CD468)SOUND ABSORPTION (dB/km)20 0 1030 40 60 50010 Degrees C200 m depth pH = 825 50 75 100 125 150 175 200FREQUENCY (kHz)Figure 4. Sound absorption.8 P2260/E
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CopeMed II - ArtFiMed Documents Tec
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Publications CopeMed II (GCP/INT/02
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PréambuleLe projet FAO-CopeMed II
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1. IntroductionCopeMed II vise à r
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) Sonars de chalutc) ITId) Arts des
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j) EVALUAj.1. Explication et pratiq
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SOMMAIRE DES SUJETS
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SUJET 3: SONDEURSEnseignant: Joan M
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Ci-joint une façon d'organiser les
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Diagramme 2.
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1. Cartesian coordinate systemCarte
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Cartesian coordinate system 3Cartes
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Cartesian coordinate system 5Cartes
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Cartesian coordinate system 7Regard
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Cartesian coordinate system 9Spring
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Système de coordonnées 2Systèmes
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Global Positioning System 2Concerna
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Global Positioning System 4Le segme
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Global Positioning System 6On peut
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Global Positioning System 8La méth
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Global Positioning System 10objecti
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Projection de Mercator 2FormulesLes
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5. Transverse Universelle de Mercat
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Transverse Universelle de Mercator
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Transverse Universelle de Mercator
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6. Coordonnées géographiquesCoord
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Coordonnées géographiques 3Articl
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Angle solide 2Angle solide en coord
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Angle solide 4avec, et la somme de
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Logarithme 2C'est la méthode dite
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Page 97 and 98: Simrad EA 500 / EK 500STATUS AND ER
Page 99 and 100: Status and error messagesDocument h
Page 101 and 102: Status and error messagesMessageExp
Page 103 and 104: Status and error messages3.2 LIST O
Page 105 and 106: Simrad EA 500 / EK 500Note IISP-# t
Page 107 and 108: Simrad EK 500 / EY 500List of conte
Page 109 and 110: Calibration2 CALIBRATION PROCEDUREC
Page 111: CalibrationThe purpose of the swive
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Page 119 and 120: The NMEA 0183 Protocol 6BODBearing
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Page 123 and 124: The NMEA 0183 Protocol 10GRSGPS Ran
Page 125 and 126: The NMEA 0183 Protocol 12LCDLoran-C
Page 127 and 128: The NMEA 0183 Protocol 14RMB Recomm
Page 129 and 130: The NMEA 0183 Protocol 16TLLTarget
Page 131 and 132: The NMEA 0183 Protocol 18VWRRelativ
Page 133 and 134: The NMEA 0183 Protocol 20ZFOUTC & T
Page 135 and 136: The NMEA 0183 Protocol 22$PGRMFPosi
Page 137 and 138: The NMEA 0183 Protocol 24$PGRMZ Alt
Page 139 and 140: The NMEA 0183 Protocol 26FURGAMGCAG
Page 141 and 142: The NMEA 0183 Protocol 288. Referen
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SUJET 7: PLANIFICATION ET RAPPORTS
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- Plote données dans le projet Arc
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Pour la lecture des échogrammes on
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Pour la lecture d’echogrammes et,
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Les exemplaires ont été livrés e
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Relation d'exercices pratiques réa
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Deuxième session: Nuria Díaz Ruiz
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• Ouvrir les fichiers avec le blo
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espagnole correspond à la division
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Polygones de ANEPOLYGONE RADIAL PÊ
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PESCAMEDC’est utilisé pour les c
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• Enfin, nous ajoutons les inform
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pour la pêche. S'il n'est pas vali
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KS_testAvec ce programme, et après
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• Enregistrer et fermer le fichie
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Appearance of the application:Our w
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-72. 2 = 1320658Making double click
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VERY IMPORTANT:Before passing CALLE
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We give RECORD, the icon will be sp
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Annexe 2: Présentation application
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avec des exercices pratiques des é
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d) Charger les cartes (thèmes) : p
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f) Sélectionner Radial comme champ
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5º.- Sélections des données :a)
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) Projeter les polygones en UTMc) D
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Annexe 2: Présentation “Initiati
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4.Representer les donnéesTemperatu
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Annexe 3: Présentation “Initiati
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plots• x11();• plot(x, y, ...)
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SUJET 11: PRATIQUESEnseignant: Joan
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Annexe 1. Tableau pour l’échanti
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SUJET 13: LECTURE DES OTOLITHESEnse
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5. Liste de participantsALGERIAAzze
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