Handbook of best practices

Contents
Executive Summary ................................................................................................................ 4
1. Observatories ...................................................................................................................... 5
1.1 Introduction .................................................................................................................... 5
1.2 Platform types (CNR, IFREMER, INGV, IEO) ................................................................ 5
1.2.1 Mooring lines ........................................................................................................... 5
1.2.2 Buoy ........................................................................................................................ 9
1.2.3 Standalone seabed platforms ............................................................................... 14
1.2.4 Cabled observatories ............................................................................................ 15
1.2.5 Platform summary ................................................................................................. 16
1.3 Design structure (OGS, GEOMAR, PLOCAN) ............................................................ 17
1.3.1 Observing purpose: parameters to measure and sensors selection ..................... 17
1.3.2 FixO3 geographical location .................................................................................. 20
1.3.3 Mooring lines/anchoring systems .......................................................................... 22
1.3.4 Data access during deployment ............................................................................ 26
1.3.5 Energetic autonomy .............................................................................................. 31
2. Pre-Deployment procedures (NOC, HCMR, CNRS, UPC) ............................................... 33
2.1 Maintenance ................................................................................................................ 33
2.1.1 Maintenance on site .............................................................................................. 33
2.1.2 Maintenance on land ............................................................................................. 34
2.1.3 Instrument maintenance ........................................................................................ 35
2.2 Corrosion prevention ................................................................................................... 36
2.3 Biofouling prevention ................................................................................................... 37
2.4 Sensors configuration/Installation ................................................................................ 38
2.4.1 Observatory payloads ........................................................................................... 38
2.4.2 Sampling scheme .................................................................................................. 39
2.4.3 Sensors validation/calibration ............................................................................... 40
3. Deployment and recovery (OGS, IFREMER, Univ. Aberdeen, UPC) ............................... 50
3.1 Means .......................................................................................................................... 50
3.1.1 Means for mooring and buoys ............................................................................... 50
3.1.2 Means for seabed observatories ........................................................................... 52
3.2 Deployment- recovery procedures ............................................................................... 53
3.2.1 R/V operations ...................................................................................................... 54
3.2.2 Tests prior to deployment ...................................................................................... 54
3.2.3 Deployment procedures ........................................................................................ 55
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