Marine Seismic, 11

63 - EXAMPLE OF ACQUISITION (colour the days and corresponding tracks) A diagram represents geophysical exploration methods. It includes labelled points from 1 to 14, indicating various stages or components of the process. Dashed lines and arrows show the directional flow and relationships between these points. The diagram also features points labelled beta and gamma, which are connected to the main structure through dashed lines. A scale bar indicating a distance of 20 kilometres is present in the top right corner. The overall structure illustrates the complex interactions and pathways involved in geophysical exploration techniques such as gravimetry, electromagnetics, and seismic reflection. https://www.w3.org/1999/xlink" xlink:href=" https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003761020/e10523ab-dbe3-4c4f-8f3e-863ae3683950/content/pg125_1.tif "/> DAY HOUR SITUATION CALIBRATION OBSERVATIONS BUOY https://www.w3.org/1998/Math/MathML" display="inline"> N ∘ X, Y Tu 06.00 Depart Quay known Calibration of the phasemetres for the regional network “ - Outgoing passage 8 “ “ - “ 10 “ “ “ 20.30 “ α measured In 3 passes after casting off - “ Z13 known Moored at Z13 W 07.35 Start of 1st day (1) β measured In 3 passes after casting off “ 08.45 “ γ “ “ 24.00 End of 1st day (1) γ known Moored at γ Th https://www.w3.org/1998/Math/MathML" display="inline"> * 07.15 Start of 2nd day (1) β “ Moored at γ “ “ γ “ F 03.45 End of 2nd day (1) Z13 “ Moored from 00 to 04H at Z13 “ 06.30 Start of 3rd day (1) β “ “ 22.30 End of 3rd day (1) γ “ Moored from 23 to 05H at γ S 05.35 Start of 4th day (1) γ “ “ 14.30 Return passage Z13 “ “ “ α “ “ 20.30 “ 10 “ S 02.35 “ 8 “ “ 04.30 “ 8 “ “ 07.00 Arrival Quay “