Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne-Reise SO243 ASTRA-OMZ (DOD-Ref-No.20150121)
Inventory of Sonne Cruise SO243 ASTRA-OMZ (DOD-Ref-No.20150121)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne SO243 ASTRA-OMZ 05.10.2015 - 22.10.2015   South Pacific Ocean  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Marandino Christa A. GEOMAR Helmholtz-Zentrum fur Ozeanforschung Kiel Guayaquil Antofagasta   

Ziel der Reise / Objectives of Cruise:

The aim is to identify and unravel the key biological and physical processes which affect trace gas distributions and air-sea exchange under different dissolved oxygen (DO) conditions. We measured a suite of climate active trace gases and their cycling in the surface ocean. Isotope techniques were used to probe more deeply the sources and sinks of these gases. Surface and atmospheric measurements of trace gas concentrations, along with physical structure (i.e. ozone- and radiosondes) and direct fluxes will be used to quantify emissions and investigate the processes that control their air-sea exchange and atmospheric distribution. State of the art techniques were used to investigate the role of surfactants on air-sea trace gas exchange. The effects of DO, temperature, and pH on trace metal speciation will be assessed. Additionally we will determine the fluxes of micronutrients and macronutrients to the surface ocean and their consequences for ocean productivity and trace gas production/consumption. From the physical standpoint, changes to circulation processes in the ocean have been proposed as one of the possible drivers of DO losses. To assess this requires an understanding of the mean circulation and the current bands which supply DO to oxygen minimum zone (OMZ) regions. The goal of the hydrographic measurements is to derive the current band transports along the cruise track from continuous acoustic Doppler current profiler (ADCP) measurements. ADCP and microstructure profiling work will also allow us to determine how different physical processes (diffusive vs. advective) contribute to gas transport from the OMZs to the ventilated surface waters. In addition, we performed a tracer release experiment on the Peruvian shelf to quantify the rate of exchange and mixing, and advective pathways of bottom water over the time span of several months. The range of topics investigated will allow a detailed and integrated view of the influence of this important region on trace element cycling and exchange.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
AWI Bracher Astrid 17 day(s) B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Underway, water samples, pigments, DOC, DOM. no
AWI Bracher Astrid 18 stations B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
CTD, water samples, pigments, CDOM. no
GEOMAH Achterberg Eric 17 day(s) B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Underway - clean seawater, biological parameters. no
GEOMAH Gledhill Martha 17 day(s) B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Underway - clean seawater, biological parameters. no
GEOMAH Gledhill Martha 17 day(s) B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Underway, water samples, pigments, DOC, DOM. no
HZG Rottgers Rudiger 18 stations B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
CTD, water samples, pigments, CDOM. no
GEOMAH Engel Anja 18 stations B06
Dissolved organic matter (e.g. DOC)
CTD, water samples, DOC. no
AWI Bracher Astrid 17 day(s) B06
Dissolved organic matter (e.g. DOC)
Underway, water samples, pigments, DOC, DOM. no
GEOMAH Gledhill Martha 17 day(s) B06
Dissolved organic matter (e.g. DOC)
Underway, water samples, pigments, DOC, DOM. no
BLOS Lomas Michael 18 stations B08
Phytoplankton
CTD, water samples, DNA, flow cytometry. no
GEOMAH Engel Anja 11 stations B72
Biochemical measurements (e.g. lipids, aminoacids)
CTD, water samples, DOM, TEP. no
GEOMAH Engel Anja 11 stations B72
Biochemical measurements (e.g. lipids, aminoacids)
Zodiac, water samples, microlayer. no
GEOMAH Engel Anja 2 stations B90
Other biological / fishery measurements
Particle samples, incubations. no
GEOMAH Achterberg Eric 2 stations B90
Other biological / fishery measurements
Particle samples, incubations. no
GEOMAH Achterberg Eric 17 day(s) B90
Other biological / fishery measurements
Underway - clean seawater, biological parameters. no
GEOMAH Gledhill Martha 17 day(s) B90
Other biological / fishery measurements
Underway - clean seawater, biological parameters. no
GEOMAH Gledhill Martha 18 stations B90
Other biological / fishery measurements
CTD, water samples, Heme. no
GEOMAH Fischer Tim 17 day(s) D71
Current profiler (e.g. ADCP)
ADCP/Echosounder. no
GEOMAH Marandino Christa A. 17 day(s) D90
Other physical oceanographic measurements
Wave radar. no
GEOMAH Fischer Tim 17 day(s) G74
Multi-beam echosounding
ADCP/Echosounder (EM122). yes
GEOMAH Stramma Lothar 18 stations H09
Water bottle stations
CTD, water samples, salinity. no
GEOMAH Grundle Damian 39 stations H10
CTD-Stations
- yes
GEOMAH Marandino Christa A. 17 day(s) H11
Sub-surface measurements underway (T, S)
Continuous underway air and water measurements of OCS, CO, SST, Salinity, N2O. no
GEOMAH Bange Hermann W. 17 day(s) H11
Sub-surface measurements underway (T, S)
Continuous underway air and water measurements of OCS, CO, SST, Salinity, N2O. no
AWI Bracher Astrid 17 day(s) H17
Optics (e.g. underwater light levels)
Absorption and attenuation spectrometer, incoming outgoing solar irradiance in water. no
HZG Rottgers Rudiger 17 day(s) H17
Optics (e.g. underwater light levels)
Absorption and attenuation spectrometer, incoming outgoing solar irradiance in water. no
GEOMAH Grundle Damian 17 day(s) H21
Oxygen
Underway, water samples, O2. no
GEOMAH Grundle Damian 18 stations H21
Oxygen
CTD, water samples, O2. no
GEOMAH Steinhoff Tobias 17 day(s) H21
Oxygen
Continuous underway air and water measurements of CO2, O2. no
GEOMAH Grundle Damian 17 day(s) H23
Total - P
Underway, water samples, nutrients. no
GEOMAH Grundle Damian 18 stations H23
Total - P
CTD, water samples, nutrients. no
GEOMAH Achterberg Eric 14 day(s) H30
Trace elements
Tow fish, water samples, trace metals. no
GEOMAH Achterberg Eric 18 stations H30
Trace elements
Go Flo, water samples, trace metals. no
GEOMAH Gledhill Martha 14 day(s) H30
Trace elements
Tow fish, water samples, trace metals. no
GEOMAH Gledhill Martha 18 stations H30
Trace elements
Go Flo, water samples, trace metals. no
GEOMAH Quack Birgit 17 day(s) H33
Other dissolved gases
Underway, water samples, halocarbons. no
GEOMAH Quack Birgit 18 stations H33
Other dissolved gases
CTD, water samples, halocarbons. no
GEOMAH Marandino Christa A. 17 day(s) H33
Other dissolved gases
Continuous underway air and water measurements of OCS, CO, SST, Salinity, N2O. no
GEOMAH Marandino Christa A. 17 day(s) H33
Other dissolved gases
Underway, water samples, DMS, isoprene, CS2. no
GEOMAH Marandino Christa A. 18 stations H33
Other dissolved gases
CTD, water samples, DMS, isoprene, CS2. no
GEOMAH Grundle Damian 18 stations H33
Other dissolved gases
CTD, water samples, N2O, CH4. no
GEOMAH Bange Hermann W. 17 day(s) H33
Other dissolved gases
Continuous underway air and water measurements of OCS, CO, SST, Salinity, N2O. no
GEOMAH Bange Hermann W. 17 day(s) H33
Other dissolved gases
Underway, water samples, N2O, CO. no
GEOMAH Tanhua Toste 4 stations H73
Geochemical tracers (e.g. freons)
CTD, water samples, CFCs. no
GEOMAH Steinhoff Tobias 12 stations H74
Carbon dioxide
CTD, water samples, CO2. no
GEOMAH Steinhoff Tobias 17 day(s) H74
Carbon dioxide
Continuous underway air and water measurements of CO2, O2. no
GEOMAH Steinhoff Tobias 17 day(s) H74
Carbon dioxide
Underway, water samples, CO2 . no
GEOMAH Grundle Damian 17 day(s) H75
Total-N
Underway, water samples, nutrients. no
GEOMAH Grundle Damian 18 stations H75
Total-N
CTD, water samples, nutrients. no
GEOMAH Marandino Christa A. 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes
GEOMAH Fischer Tim 17 stations H90
Other chemical oceanographic measurements
Microstructuresonde. no
GEOMAH Kruger Kirstin 67 flight(s) M01
Upper air observations
Balloons: Underway radio- and ozonesondes, meteorological parameters. no
AWI Bracher Astrid 17 day(s) M02
Incident radiation
Incoming and outgoing solar irradiance in air . no
HZG Rottgers Rudiger 17 day(s) M02
Incident radiation
Incoming and outgoing solar irradiance in air . no
GEOMAH Quack Birgit 140 samples M71
Atmospheric chemistry
Underway air canister sampling - trace gases. no
GEOMAH Marandino Christa A. 16 day(s) M90
Other meteorological measurements
Continous eddy covariance fluxes of DMS, acetone, CO2, and N2O. no
GEOMAH Kruger Kirstin 67 flight(s) M90
Other meteorological measurements
Balloons: Underway radio- and ozonesondes, meteorological parameters. no
17.8.2019