Optical density (median) by all particles during POLARSTERN cruise PS99 ...

Absorption coefficients (abs) and optical density (OD) by total particles, phytoplankton and non-algal particles (NAP) were measured with standard deviation (sd) estimated on water samples collected from underway AC-S flow-through system outflow and CTD. Measurements were performed using QFT-ICAM (R...

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Bibliographic Details
Main Authors: Liu, Yangyang, Wiegmann, Sonja, Bracher, Astrid
Format: Dataset
Language:English
Published: PANGAEA 2019
Subjects:
absorption
non-algal particles
optical density
particulate matter
Phytoplankton
Event label
DATE/TIME
Sample ID
LATITUDE
LONGITUDE
DEPTH, water
Sample volume
Density, optical at given wavelength
Underway cruise track measurements
CTD/Rosette
CTD/Rosette with Underwater Vision Profiler
Autonomous underwater vehicle
PS99.1
PS99.2
Polarstern
Arctic Amplification AC3
FRontiers in Arctic marine Monitoring FRAM
Arctic
Online Access:https://dx.doi.org/10.1594/pangaea.907649
https://doi.pangaea.de/10.1594/PANGAEA.907649
Description
Summary:Absorption coefficients (abs) and optical density (OD) by total particles, phytoplankton and non-algal particles (NAP) were measured with standard deviation (sd) estimated on water samples collected from underway AC-S flow-through system outflow and CTD. Measurements were performed using QFT-ICAM (Röttgers et al., 2016) as described in Liu et al. (2018) and Liu et al. (2019).1. About sampling:a) underway samples were collected from unfiltered AC-S outflow (depth: 11m); CTD samples with 5-6 depths were collected on upcast.b) vacuum pressure for filtration: maximum 200 hPac) samples were measured fresh (not preserved).d) blank filters were collected by soaking them in 0.2um filtered seawater.e) replicates were not collected.2. About measurements:a) Instrument: light source: UV-VIS lamp (CF-1000- HC lamp, Illumination Technology, USA); absorption meter: Quantitative Filter Technique - Integrating Cavity Absorption Meter (QFT-ICAM) (Röttgers et al., 2016) with 80 mm- diameter integrating sphere; detector: ...

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