Year: 2023
Type: book-chapter
Abstract: On 10 February, the pilot boarded at 0942 h.The vessel began the transit to the first site (U1579) with the first line away at 1024 h.The pilot was away at 1045 h, and the start of the sea passage was recorded as 1048 h.Within minutes of the vessel reaching full throttle, the newly commissioned UPS began rejecting the ship's power and started to run off the batteries.The vessel was throttled back to half speed at 1116 h.The UPS returned to normal operating mode.This reaction was verified several more times to diagnose the problem, and it was decided to take the UPS offline.Beginning at 1245 h, JRSO IT services were taken offline.The UPS was bypassed, and regulated power was restored at 1445 h.The vessel returned to full throttle at 1448 h, and the sea voyage continued at full speed.JRSO IT services were fully restored at 1715 h.During the transit, daily COVID-19 antigen testing was conducted in the conference room for the science party and JRSO staff and in the ship's medical office for the crew.The testing continued daily for 8 days out of port and every other day after that until the end of the 2 week mitigation period.
Authors: S.M. Bohaty, G. Uenzelmann-Neben, L.B. Childress, O.A. Archontikis, S.J. Batenburg, P.K. Bijl, A.M. Burkett, H.C. Cawthra, P. Chanda, J.J. Coenen, E. Dallanave, P.C. Davidson, K.E. Doiron, J. Geldmacher, D. Gürer, S.J. Haynes, J.O. Herrle, Y. Ichiyama, D. Jana, M.M. Jones, C. Kato, D.K. Kulhanek, J. Li, J. Liu, J. McManus, A.N. Minakov, D.E. Penman, C.J. Sprain, A.C. Tessin, T. Wagner, T. Westerhold
Institution: International Ocean Discovery Program
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4385987751