Arévalo-Martínez, Damian L; Sommer, Marcel; Bange, Hermann W; Eisnecker, Paula; Schulz, Gesa; Stoltenberg, Ina (2025): Surface dissolved nitrous oxide concentrations during SONNE cruise SO305 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983960
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-08-18 • DOI registered: 2025-09-16
Abstract:
The dataset comprises high-resolution (1-min) measurements of dissolved nitrous oxide in surface waters of the Eastern Tropical Indian Ocean. The observations were conducted during the expedition SO-305 on board R/V SONNE (April-May 2024). Seawater was drawn on board by means of a submersible pump installed at 6 m depth, and measurements of equilibrated headspace were carried out as described in Arévalo-Martínez et al. (2013): https://doi.org/10.5194/os-9-1071-2013.
Supplement to:
Sommer, Marcel; Bange, Hermann W; Eisnecker, Paula; Schulz, Gesa; Stoltenberg, Ina; Arévalo-Martínez, Damian L (2025): N2O Emissions From the Eastern Tropical Indian Ocean. Geophysical Research Letters, 52(22), https://doi.org/10.1029/2025GL117627
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03G0305A: SO305 - BIOCAT-IIEO2: Biogeochemische und Atmosphären Prozesse im Golf von Bengalen - Ein Beitrag zur International Indian Ocean Expedition 2 ; Vorhaben: Der Kohlenstoffkreislauf
Coverage:
Median Latitude: 9.474281 * Median Longitude: 87.648213 * South-bound Latitude: -1.492900 * West-bound Longitude: 83.997200 * North-bound Latitude: 16.000500 * East-bound Longitude: 89.647700
Date/Time Start: 2024-04-15T13:48:00 * Date/Time End: 2024-05-11T07:30:00
Event(s):
SO305-track * Latitude Start: 6.942186 * Longitude Start: 79.846939 * Latitude End: 1.261848 * Longitude End: 103.818227 * Date/Time Start: 2024-04-12T12:00:01 * Date/Time End: 2024-05-16T22:58:57 * Campaign: SO305 (BIOCAT-IIEO2) * Basis: Sonne_2 * Method/Device: Underway cruise track measurements (CT) * Comment: Colombo - Singapore
Comment:
OA-ICOS Analyzer coupled to shower head equilibrator as in Arévalo-Martínez et al. (2013): https://doi.org/10.5194/os-9-1071-2013. Equilibration temperature measured with a FLUKE 1524 reference thermometer (+/-0.01°C). Sea surface temperature and salinity derived from discrete in-situ measurements with a Seabird SBE45 (Temperature: +/-0.002°C; Conductivity: ± 0.0003 S/m). The gaps in equilibration temperature caused by logger malfunction were filled based on the linear correlation with SST (equ_temp_calc=0.9627*SST + 1.002).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Arévalo-Martínez, Damian L | Geocode | ||
| 2 | LONGITUDE | Longitude | Arévalo-Martínez, Damian L | Geocode | ||
| 3 | LATITUDE | Latitude | Arévalo-Martínez, Damian L | Geocode | ||
| 4 | Temperature at equilibration | Tequ | °C | Arévalo-Martínez, Damian L | ||
| 5 | Sea surface temperature | SST | °C | Arévalo-Martínez, Damian L | ||
| 6 | Sea surface salinity | SSS | Arévalo-Martínez, Damian L | |||
| 7 | Nitrous oxide, dry-air mole fraction | N2O | nmol/mol | Arévalo-Martínez, Damian L | seawater | |
| 8 | Nitrous oxide, dry-air mole fraction | N2O | nmol/mol | Arévalo-Martínez, Damian L | air | |
| 9 | Nitrous oxide, partial pressure | pN2O | natm | Arévalo-Martínez, Damian L | seawater | |
| 10 | Nitrous oxide, partial pressure | pN2O | natm | Arévalo-Martínez, Damian L | Calculated | air |
| 11 | Nitrous oxide, dissolved | N2O | nmol/l | Arévalo-Martínez, Damian L | seawater | |
| 12 | Nitrous oxide | N2O | nmol/l | Arévalo-Martínez, Damian L | Calculated | air |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
275156 data points
Download Data
View dataset as HTML (shows only first 2000 rows)