Choisnard, Noémie; Moros, Matthias; Voss, Maren (2023): Porewater nutrients in sediment cores from the Amazon shelf obtained in April/May 2021 during RV METEOR cruise M174 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961274
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
The Amazon River is known as a region of intense biochemical reactivity. As a result of increased anthropogenic impacts in its catchment (e.g. population growth, agriculture, and deforestation), The Amazon River is undergoing fundamental changes. The RV METEOR cruise M174 (https://doi.org/10.1594/PANGAEA.935041) aimed to provide an integrated overview of nitrogen cycling processes in areas influenced by the Amazon River, which is crucial to estimate the ecosystem's health and productivity. During this cruise, a MUC was deployed at eight stations to collect short sediment cores, in order to explore the influence of the river on sediments. This dataset presents the results of porewater nutrients collected with rhizons and measured on board with an autoanalyzer (Quaatro seal analytics).
Supplement to:
Choisnard, Noémie; Burtscher, Emma; Forster, Stefan; Frey, Claudia; Moros, Matthias; Voss, Maren (2023): The Amazon shelf sediments, a reactor that fuels intense nitrogen cycling at the seabed. Limnology and Oceanography, https://doi.org/10.1002/lno.12416
Related to:
Voss, Maren (2021): Master tracks in different resolutions of METEOR cruise M174, Las Palmas - Emden, 2021-04-12 - 2021-05-29 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.935041
References:
Grasshoff, Klaus; Kremling, Klaus; Ehrhardt, M (1999): Methods of Seawater Analysis. Wiley, https://doi.org/10.1002/9783527613984
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 439440452: Metabolismus des Stickstoffs in der Amazonasfahne und dem westlichen, tropischen Nordatlantik (MeNARP)
Coverage:
Median Latitude: 2.638095 * Median Longitude: -49.728012 * South-bound Latitude: -0.597570 * West-bound Longitude: -52.557300 * North-bound Latitude: 6.172620 * East-bound Longitude: -47.731500
Date/Time Start: 2021-04-23T09:38:51 * Date/Time End: 2021-05-05T18:15:36
Minimum Elevation: -85.0 m * Maximum Elevation: -15.0 m
Event(s):
M174_9-9 * Latitude Start: -0.121800 * Longitude Start: -47.731500 * Latitude End: -0.121800 * Longitude End: -47.731500 * Date/Time Start: 2021-04-23T09:38:51 * Date/Time End: 2021-04-23T09:43:09 * Elevation Start: -35.0 m * Elevation End: -34.0 m * Location: South Atlantic Ocean * Campaign: M174 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
M174_10-9 * Latitude: -0.597570 * Longitude: -48.260520 * Date/Time: 2021-04-23T17:38:02 * Elevation: -15.0 m * Location: South Atlantic Ocean * Campaign: M174 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
M174_13-11 * Latitude: 1.050780 * Longitude: -48.584200 * Date/Time: 2021-04-24T19:37:09 * Elevation: -17.0 m * Location: North Atlantic Ocean * Campaign: M174 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Choisnard, Noémie | |||
| 2 | Station label | Station | Choisnard, Noémie | |||
| 3 | DATE/TIME | Date/Time | Choisnard, Noémie | Geocode | ||
| 4 | LATITUDE | Latitude | Choisnard, Noémie | Geocode | ||
| 5 | LONGITUDE | Longitude | Choisnard, Noémie | Geocode | ||
| 6 | ELEVATION | Elevation | m a.s.l. | Choisnard, Noémie | MultiCorer (MUC) | Geocode |
| 7 | Core | Core | Choisnard, Noémie | |||
| 8 | DEPTH, sediment/rock | Depth sed | m | Choisnard, Noémie | Geocode | |
| 9 | Phosphate | [PO4]3- | µmol/l | Choisnard, Noémie | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) | |
| 10 | Nitrate | [NO3]- | µmol/l | Choisnard, Noémie | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) | |
| 11 | Nitrite | [NO2]- | µmol/l | Choisnard, Noémie | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) | |
| 12 | Ammonium | [NH4]+ | µmol/l | Choisnard, Noémie | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) | |
| 13 | Silicon dioxide | SiO2 | µmol/l | Choisnard, Noémie | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1484 data points