PANGAEA_993453 Raw physical oceanography CTD data and positions from RV METEOR cruise M210 Walter, Maren; Mette, Jonathan; Sorge, Yves; Meyer, Volker Raw physical oceanography CTD data and positions from RV METEOR cruise M210 2026-04-09 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993453 Investigator Maren Walter maren.walter@uni-bremen.de Earth Science Event label Date/Time of event Latitude of event Longitude of event Elevation of event File content Binary Object geoscientificInformation Atlantic Ocean Capelinhos hydrothermal field CTD CTD/Rosette hydrothermal activity M210 M210_10-1 M210_1-1 M210_11-1 M210_12-1 M210_14-1 M210_15-1 M210_16-1 M210_17-1 M210_18-1 M210_19-1 M210_20-1 M210_22-1 M210_23-1 M210_25-1 M210_26-1 M210_29-1 M210_3-1 M210_34-1 M210_35-1 M210_38-1 M210_40-1 M210_4-1 M210_42-1 M210_45-1 M210_48-1 M210_50-1 M210_53-1 M210_55-1 M210_7-1 M210_8-1 Menez Gwen hydrothermal field Mid-Atlantic Ridge Rainbow hydrothermal vent Saldanha hydrothermal field CTD, Sea-Bird Meteor (1986) 2025-04-30 2025-05-21 Complete 36.021583 37.8462 -34.878817 -26.561367 MARUM Center for Marine Environmental Sciences unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 240 data points text/tab-separated-values Walter, Maren: Additional position data from the acoustic underwater transponder and the ship's navigation system from RV METEOR cruise M210. https://download.pangaea.de/reference/139145/attachments/transponder_navigation_data.tab Walter, Maren: Scans of the handwritten protocols for sampling with the rosette water sampler from RV METEOR cruise M210. https://download.pangaea.de/reference/139147/attachments/M210_sampling_protocols.pdf Walter, Maren: Scans of the handwritten protocols for the CTD rosette deployments from RV METEOR cruise M210. https://download.pangaea.de/reference/139146/attachments/M210_ctd_station_protocols.pdf Walter, Maren: Scans of the handwritten protocols with additional information for tow-yo deployments from RV METEOR cruise M210. https://download.pangaea.de/reference/139148/attachments/M210_towyo_protocols.pdf

This dataset contains raw CTD (conductivity, temperature, depth probe) data for stations conducted during the cruise M210 in 2025 in the Atlantic Ocean. The goal was to observe the extent of water masses emitted from the Rainbow hydrothermal field and other sites along the Mid-Atlantic Ridge. For this purpose additional sensors were mounted to the CTD system: a Seapoint turbidity sensor, a custom-built Eh sensor (voltage channel 6) and for some stations an custom-built H2 sensor (voltage channel 7), the later two manufactured by the Max-Plank-Institute for Marine Microbiology Bremen. The two self-built sensors were untested and uncalibrated, therefore extreme caution should be used when interpreting their results. CTD stations were executed as normal vertical casts or as repeated up- and downcasts during slow ship travel creating a zig-zag-like pattern (tow-yo deployment). Additionally, data with the raw, unprocessed position data from a Posidonia acoustic underwater position tracker and the ships navigational system are supplied as well as scans of the handwritten deployment protocols. The acoustic tracker was mounted at the CTD rosette for most of the stations. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993453"!

http://www.ocean.uni-bremen.de/mitarbeiter/mwalter/index_mw_eng.html https://en.wikipedia.org/wiki/RV_Meteor_(1986) Meteor (1986) https://www.marum.de/en/ MARUM DIF 9.4 2026-04-09 2026-05-08