Description: Reference measurements of surface waters were collected during the RV MARIA S Merian cruise MSM97/2 (12.12.2020 - 23.12.2020, Emden, Germany - Emden Germany). Accompanying the underway measurements of the DAM transit cruise water samples were taken from the CTD and the onboard measurement containers (RSWS) for later validation of bio-optical water properties. Turbidity and fluorescent dissolved organic matter (fDOM) were measured directly onboard via handheld instruments (see methods/device) whereas suspended particular matter (SPM) and chlorophyll a (Chl a) were filtered onboard on glas fibre filters (GFF, 47mm, 0,7 µm) and frozen at -25°C and -80°C immediately after sampling. Values were determined in the lab after the cruise within 2 months, for SPM via gravimetric analysis and for Chl a according to EPA Method 445. Water samples for nitrate analysis were taken and frozen at -25°immediately after sampling for later lab analysis according to Grasshoff et al. (1999).
Global identifier:
Doi(
"10.1594/PANGAEA.967466",
)
Measurements(
Measurements {
domain: Unspecified,
station: None,
measured_variables: [
"Event label",
"DATE/TIME",
"LATITUDE",
"LONGITUDE",
"DEPTH, water",
"Speed",
"Suspended particulate matter",
"Chlorophyll a",
"Nitrate",
"Turbidity (Formazin nephelometric unit)",
"Fluorescence, dissolved organic matter",
"Site",
],
methods: [
"Gravimetric analysis according to IOCCG (2021)",
"Fluorometer, Turner Designs, Trilogy 7200-002 [EPA Method 445.0]",
"Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999)",
"Turbidity sensor, Hach Lange, TSS PORTABLE LXV322.99.00001",
"Handheld Fluorometer, Turner Designs, AquaFluor",
],
},
)
Dataset
Origins: /Wissenschaft/PANGAEA
Tags: Nitrat ? Geografische Koordinaten ? Filter ? Organisches Material ? Oberflächengewässer ? Wasserprobe ? Wasseruntersuchung ? Trübung ? Bio-optics ? Chl a ? ICBM ? References ? SPM ?
Region: AquaDom & SEA LIFE Berlin
Bounding boxes: -1.892083433° .. 7.784210317° x 53.81437532° .. 66.74414782° 13.4036° .. 13.4036° x 52.52005° .. 52.52005°
License: cc-by/4.0
Language: Englisch/English
Issued: 2024-06-28
Modified: 2024-06-28
Time ranges: 2020-12-13 - 2020-12-22
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