de.pangaea.dataset993809 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-05-29T11:54:06Z https://doi.pangaea.de/10.1594/PANGAEA.993809 <gco:CharacterString>Continuous optical chlorophyll-a and turbidity data along RV SONNE cruise SO314</gco:CharacterString> 2026-05-19T10:00:51 publication Oelker, Julia
julia.oelker@uni-oldenburg.de
https://orcid.org/0000-0002-0783-3617 information author Frank, Martin
mfrank@geomar.de
https://orcid.org/0000-0002-8606-4421 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Underway optical chlorophyll-a and turbidity data were collected along the cruise track with Sea-Bird Scientific ECO FLNTU sensors installed within two autonomous measurement systems, called self-cleaning monitoring boxes (SMBs). The SMBs measure alternatingly. While one box is measuring, the other one is being cleaned. The boxes switched every 24 hours at the beginning of the time series and from 17 Sep on every 6 hours. The water inlet for the SMBs is at about 4 m below sea surface. Observed chlorophyll-a and turbidity data were both quality controlled. Analysis of the chlorophyll-a and turbidity data during parallel operation of the sensors in the two boxes showed significant differences between the sensors (especially for turbidity, only small differences found for chlorophyll-a). The sensors were aligned resulting in fairly consistent chlorophyll-a and turbidity time series. A comparison for the corrected chlorophyll-a with satellite data using the GlobColour CHL1 product is provided. Correlation with CHL1 is moderate, considering only nighttime data which are assumed to be unaffected by non-photochemical quenching. Details on all quality control steps and the comparison with satellite data can be found in the data processing report. Note that the instruments are factory-calibrated, however, no post-calibration was performed due to missing reference data. Absolute values should be challenged. The time series shows clear signs of non-photochemical quenching, see data processing report. It was out of the scope of the quality control to flag or correct non-photochemical quenching. The resulting data set contains the original data and corresponding quality flags achieved by the quality control algorithm as well as the corrected chlorophyll-a and turbidity data with corresponding quality flags. The data source is given through the name of the active SMB. The data set contains data during transit time and station work. We recommend to use ship's speed to filter for only transit data. completed Oelker, Julia
julia.oelker@uni-oldenburg.de
https://orcid.org/0000-0002-0783-3617 information principalInvestigator chlorophyll-a DAM Fluorescence turbidity Underway measurement theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact DAM_Underway DAM Underway Research Data DataHub DataHub Earth and Environment of the Helmholtz Association theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -149.60126 -71.07644 -23.60311 -13.82542 2025-08-12T23:06:00 2025-10-04T05:59:00 4.0 4.0 DATE/TIME thematicClassification LATITUDE thematicClassification LONGITUDE thematicClassification DEPTH, water physicalMeasurement m m Ship speed physicalMeasurement kn kn Chlorophyll a physicalMeasurement Fluorometer, Sea-Bird Scientific, ECO FLNTU µg/l µg/l Quality flag, chlorophyll a thematicClassification Data quality control procedures according to Copernicus Marine in situ TAC BGC quality control group (2021); QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing Turbidity (Nephelometric turbidity unit) physicalMeasurement Fluorometer, Sea-Bird Scientific, ECO FLNTU NTU NTU Quality flag, turbidity thematicClassification Data quality control procedures according to Copernicus Marine in situ TAC BGC quality control group (2021); QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing Chlorophyll a physicalMeasurement Fluorometer, Sea-Bird Scientific, ECO FLNTU; Sensor alignment correction according to Data Processing Report; corrected through sensor alignment µg/l µg/l Quality flag, chlorophyll a thematicClassification Data quality control procedures according to Copernicus Marine in situ TAC BGC quality control group (2021); corrected; QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing Turbidity (Nephelometric turbidity unit) physicalMeasurement Fluorometer, Sea-Bird Scientific, ECO FLNTU; Sensor alignment correction according to Data Processing Report; corrected through sensor alignment NTU NTU Quality flag, turbidity thematicClassification Data quality control procedures according to Copernicus Marine in situ TAC BGC quality control group (2021); corrected; QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing Measurement container thematicClassification Active container, SMB_A or SMB_B text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.993809?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: SO314_0_Underway-7 * LATITUDE START: -17.536410 * LONGITUDE START: -149.569680 * LATITUDE END: -23.603110 * LONGITUDE END: -71.076440 * DATE/TIME START: 2025-08-12T23:06:00 * DATE/TIME END: 2025-10-04T05:59:00 * CAMPAIGN: SO314 * BASIS: Sonne_2 * METHOD/DEVICE: Fluorometer, Sea-Bird Scientific, ECO FLNTU event was not logged in DSHIP 2025-08-12T23:06:00 Related to <gco:CharacterString>Testing Solid Earth - Climate Connections and Generation of Crust at the Fast-Spreading Southeast Pacific Rise using time series, Cruise No. SO314, 13th August 2025 - 5th October 2025, Pepeete (French Polynesia) - Antofagasta (Chile)</gco:CharacterString> 2025-01-01 publication https://doi.org/10.48433/cr_so314 Frank, Martin
mfrank@geomar.de
https://orcid.org/0000-0002-8606-4421 information author Kopp, Heidrun
hkopp@geomar.de
https://orcid.org/0000-0002-6898-1568 information author Arndt, Iris https://orcid.org/0000-0002-2714-865X information author Bartels, Thies author Bauer, Benedikt author Berkholz, Martha author Berndt, Janine
jberndt@geomar.de
https://orcid.org/0000-0003-3720-3568 information author Chen, Zhongxing author Crosby, Ani Jang author Dale, Andrew author Dannowski, Anke
adannowski@geomar.de
https://orcid.org/0000-0001-8581-7500 information author Evers, Florian
fevers@geomar.de
author Fessler, Sebastian
sfessler@geomar.de
author Filbrandt, Christian author Frederichs, Thomas
frederichs@uni-bremen.de
https://orcid.org/0000-0003-0976-0332 information author Friedrich, Annalena author Glock, Nicolaas
nglock@geomar.de
author Haas, Peter author Hilgenfeldt, Christian https://orcid.org/0000-0001-5163-1150 information author Hofmann, Jannes author Kahler, Merit author Lange, Dietrich
dlange@geomar.de
https://orcid.org/0000-0003-2654-7963 information author Lippert, Antina author Murray, Kenneth author Raddatz, Jacek
jraddatz@geomar.de
https://orcid.org/0000-0002-5713-9682 information author Rohde, Lea author Sange, Oliver author Schätzel, Julia author Schmülling, Bendikt author Siegburg, Melanie author Timm, Christian
chrtimm@geomar.de
author Verdurme, Pauline author Warnatz, Julia author Warwel, Arne
arne.warwel@uni-hamburg.de
https://orcid.org/0000-0001-7141-4620 information author Zindorf, Mark
mark@zindorf.de
https://orcid.org/0000-0002-6279-7241 information author documentDigital SONNE-Berichte, Begutachtungspanel Forschungsschiffe SO314 152 pp Data processing report <gco:CharacterString>Continuous optical chlorophyll-a and turbidity data along R/V SONNE cruise SO314 - Data Processing Report</gco:CharacterString> 2026-01-01 publication Oelker, Julia
julia.oelker@uni-oldenburg.de
https://orcid.org/0000-0002-0783-3617 information author documentHardcopy Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky Universität Oldenburg