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The vessel was set-up for data acquisition and navigation with PDS-2000 software by RESON, interfacing by a multiserial and Ethernet link several instruments, among them the DGPS (Fugro), the Atlas-Krupp Deso-25 single-beam echosunder, the MAHRS MRU and the meteorological station. The position and depth data were also distributed to the CTD data acquisition console. A Kongsberg processor running the SIS software, collected the multibeam data, including a SEAPATH MRU, compass, and DGPS. The MBES was the 70kHz, 400 1x2° beams, 150° aperture EM-710 (2000 m range) model by Kongsberg. The sonar head is positioned on the ship's keel using a V-shaped steel frame. A Sound Velocity probe at the keel 1m above the Sonar Head is interfaced directly to the MBES processor, thus providing the necessary real-time data for the beam-forming. CTD casts were normally used for input of the sound velocity profile to the system. An Anderaa Meteorological Station was also made available, at a rate of one measurement every 5 minutes.
Table 1:
Instrumental Offsets of
PDS2000 on Ship Urania (PDS2000). The GPS antenna (primary positioning system)
is located on point DGPS.
| POSITION |
ACROSS |
ALONG |
HEIGHT |
| REF.POINT |
0.00 |
0.00 |
0.00 |
| DGPS |
1.64 |
14.30 |
14.18 |
| MBEAM |
0.00 |
14.36 |
-4.96 |
| MAHRS |
0.00 |
0.0 |
-3.40 |
| DESO |
5.50 |
-1.85 |
-3.80 |
| CHIRP |
-1.0 |
11.80 |
-4.00 |
| A-FRAME |
6.5 |
-6.70 |
0.0 |
| STERN |
0.00 |
-30.60 |
0.00 |
| MAGNETOM. |
-5.50 |
-210 |
0.0 |
| DGPSGRAV |
0.0 |
-4.0 |
10.0 |
| GRAV |
-1.0 |
-1.0 |
0.0 |
|
Table 2:
Instrumental
Offsets on Ship Urania (EM710). The DGPS antenna (primary positioning system) is located on point SEAPATH_GPS.
| POSITION |
ACROSS |
ALONG |
HEIGHT |
| REF. POINT |
0.00 |
0.00 |
0.00 |
| SEAPATH_GPS |
-4.039 |
0.163 |
-18.211 |
| MRU |
-0.341 |
-1.342 |
-1.596 |
| MBEAM_TX |
0.0936 |
10.2964 |
5.0623 |
| MBEAM_RX |
-0.0031 |
11.0144 |
5.0600 |
| SEALEVEL |
0 |
0 |
-0.0875 |
|
Figure 4:
CruiseMNG0310: pokmark filed on faults and tectonic lineaments on top of Gallignani Ridge, Pomo.
![\includegraphics[width=\linewidth]{IMG/GALLIGNANI_RIDGE_POCKMARKS.eps}](img15.png) |
Figure 5:
CruiseMNG0310: fault on top of Gallignani Ridge(WSE), Pomo (see Fig. 4).
![\includegraphics[width=\linewidth]{IMG/faglia_sella_pomo.eps}](img16.png) |
Figure 6:
CruiseMNG0310: pokmark filed on top of Gallignani Ridge, Pomo.
![\includegraphics[width=\linewidth]{IMG/pockmark_pomo.eps}](img17.png) |
Next: BATIMETRIA
Up: MATERIALI E METODI
Previous: MATERIALI E METODI
2011-03-16