Galgani, Luisa; Piontek, Judith; Engel, Anja (2016): Biopolymers form a gelatinous microlayer at the air-sea interface when Arctic sea ice melts [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.871643, Supplement to: Galgani, L et al. (2016): Biopolymers form a gelatinous microlayer at the air-sea interface when Arctic sea ice melts. Scientific Reports, 6, 29465, https://doi.org/10.1038/srep29465
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
The interface layer between ocean and atmosphere is only a couple of micrometers thick but plays
a critical role in climate relevant processes, including the air-sea exchange of gas and heat and the
emission of primary organic aerosols (POA). Recent findings suggest that low-level cloud formation
above the Arctic Ocean may be linked to organic polymers produced by marine microorganisms. Sea
ice harbors high amounts of polymeric substances that are produced by cells growing within the seaice
brine. Here, we report from a research cruise to the central Arctic Ocean in 2012. Our study shows
that microbial polymers accumulate at the air-sea interface when the sea ice melts. Proteinaceous
compounds represented the major fraction of polymers supporting the formation of a gelatinous
interface microlayer and providing a hitherto unrecognized potential source of marine POA. Our study
indicates a novel link between sea ice-ocean and atmosphere that may be sensitive to climate change.
Project(s):
Coverage:
Median Latitude: 84.206481 * Median Longitude: 95.717560 * South-bound Latitude: 82.090000 * West-bound Longitude: 31.223610 * North-bound Latitude: 87.929720 * East-bound Longitude: 131.130800
Date/Time Start: 2016-08-10T00:00:00 * Date/Time End: 2016-09-19T00:00:00
Minimum DEPTH, water: 0.20 m * Maximum DEPTH, water: 0.53 m
Event(s):
PS80/3-track * Latitude Start: 69.678000 * Longitude Start: 18.989800 * Latitude End: 53.563960 * Longitude End: 8.548130 * Date/Time Start: 2012-08-02T12:00:00 * Date/Time End: 2012-10-08T06:00:00 * Location: Arctic Ocean, Central Basin * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
PS80/224-1 (Ice station #1) * Latitude Start: 84.050500 * Longitude Start: 31.113830 * Latitude End: 84.033833 * Longitude End: 31.109500 * Date/Time Start: 2012-08-09T08:08:00 * Date/Time End: 2012-08-11T12:23:00 * Elevation Start: -4013.0 m * Elevation End: -4011.0 m * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: Position sensor: Ship's GPS; Wind speed start: 0.2 kn; Wind speed end: 0.2 kn; Sea ice coverage start: 95 %; Sea ice coverage end: 95 %
PS80/237-1 (Ice station #2) * Latitude Start: 83.986500 * Longitude Start: 78.103330 * Latitude End: 83.933667 * Longitude End: 75.504667 * Date/Time Start: 2012-08-14T13:10:00 * Date/Time End: 2012-08-16T18:42:00 * Elevation Start: -3484.0 m * Elevation End: -3424.0 m * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: Position sensor: Ship's GPS; Wind speed start: 0.3 kn; Wind speed end: 0.6 kn; Sea ice coverage start: 90 %; Sea ice coverage end: 80 %
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Engel, Anja | |||
| 2 | DATE/TIME | Date/Time | Engel, Anja | Geocode | ||
| 3 | LATITUDE | Latitude | Engel, Anja | Geocode | ||
| 4 | LONGITUDE | Longitude | Engel, Anja | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Engel, Anja | Geocode | |
| 6 | Site | Site | Engel, Anja | |||
| 7 | Sample code/label | Sample label | Engel, Anja | |||
| 8 | Salinity | Sal | Engel, Anja | |||
| 9 | Description | Description | Engel, Anja | |||
| 10 | Carbon, organic, dissolved | DOC | µmol/l | Engel, Anja | ||
| 11 | Amino acids, dissolved hydrolyzable | DHAA | nmol/l | Engel, Anja | ||
| 12 | Uronic acids, dissolved | DURA | nmol/l | Engel, Anja | ||
| 13 | Amino acids, dissolved hydrolyzable | DHAA | nmol/l | Engel, Anja | DHAA-C | |
| 14 | Uronic acids, dissolved | DURA | nmol/l | Engel, Anja | DURA-C | |
| 15 | Bacteria | Bact | #/ml | Engel, Anja | 10**5 cells/ml | |
| 16 | Coomassie stainable particles | CSP | #/µl | Engel, Anja | ||
| 17 | Coomassie stainable particles | CSP | µm2/l | Engel, Anja | area sml | |
| 18 | Slope ratio | SR | Engel, Anja | CSP slope sml | ||
| 19 | Transparent exopolymer particles | TEP | #/µl | Engel, Anja | ||
| 20 | Transparent exopolymer particles | TEP | µm2/l | Engel, Anja | area sml | |
| 21 | Slope ratio | SR | Engel, Anja | TEP slope sml |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
567 data points