Citation:

PANGAEA.965416

Name: Contribution of various Nitrogen cycle processes to the nitrogen budget of the Amazon and Pará estuaries of METEOR cruise M174
Published: 2024-04-22
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Amazon; Amazon estuary; M174; Nitrogen

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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. During the RV METEOR cruise M174 (doi:10.1594/PANGAEA.935041), six stations were visited to study the nitrogen cycling and productivity of the Amazon and Pará estuaries, which is crucial to estimate the ecosystem's health. This dataset presents rates of various nitrogen cycle processes (nitrification, nitrate, ammonium, and amino acid uptake rates) as well as associated dissolved inorganic carbon uptake rates. Rates are presented as volumetric rates, as well as rates integrated over the euphotic zone (3 to 10 meters).

Keyword(s):

Amazon; Amazon estuary; M174; Nitrogen

Supplement to:

Choisnard, Noémie; Umbricht, Jacqueline; Araujo, Moacyr; Böttcher, Michael Ernst; Burmeister, Christian; Liskow, Iris; Schmiedinger, Iris; Voss, Maren (accepted): Nitrogen assimilation and recycling in surface waters of the Amazon and Pará Estuaries. Journal of Geophysical Research: Oceans

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 439440452 : Metabolismus des Stickstoffs in der Amazonasfahne und dem westlichen, tropischen Nordatlantik (MeNARP)

Coverage:

Median Latitude: 0.661243 * Median Longitude: -48.371965 * South-bound Latitude: -0.597550 * West-bound Longitude: -48.839570 * North-bound Latitude: 1.612580 * East-bound Longitude: -47.731100

Date/Time Start: 2021-04-23T06:27:57 * Date/Time End: 2021-04-27T11:40:39

Minimum DEPTH, water: 2 m * Maximum DEPTH, water: 11 m

Event(s):

M174_9-2 * Latitude: -0.121680 * Longitude: -47.731100 * Date/Time: 2021-04-23T06:27:57 * Elevation: -36.0 m * Location: South Atlantic Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

M174_10-2 * Latitude: -0.597550 * Longitude: -48.260520 * Date/Time: 2021-04-23T15:16:37 * Elevation: -14.0 m * Location: South Atlantic Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

M174_12-2 * Latitude: 0.596830 * Longitude: -48.373770 * Date/Time: 2021-04-24T11:30:01 * Elevation: -15.0 m * Location: South Atlantic Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Choisnard, Noémie
2	Latitude of event	Latitude		Choisnard, Noémie
3	Longitude of event	Longitude		Choisnard, Noémie
4	Date/Time of event	Date/Time		Choisnard, Noémie
5	DEPTH, water	Depth water	m	Choisnard, Noémie	CTD, Sea-Bird, SBE 911plus	Geocode
6	Depth comment	Depth comm		Choisnard, Noémie
7	DEPTH, water	Depth water	m	Choisnard, Noémie		Geocode – Euphotic zone
8	Incubation type	Inc type		Choisnard, Noémie
9	Area/locality	Area		Choisnard, Noémie		System
10	Nitrification rate	Nitrification	nmol/l/h	Choisnard, Noémie	According to Damashek et al. (2016)
11	Nitrification rate, standard deviation	Nitrifi rate std dev	±	Choisnard, Noémie	Calculated
12	Nitrate uptake rate	NO3 upt rate	nmol/l/h	Choisnard, Noémie	According to Damashek et al. (2016)
13	Nitrate uptake rate, standard deviation	NO3 upt rate std dev	±	Choisnard, Noémie	Calculated
14	Ammonium uptake rate	[NH4]+ upt rate	nmol/l/h	Choisnard, Noémie	According to Dugdale and Goering (1967)
15	Ammonium, uptake rate, integrated, standard deviation	NH4 upt rate int std dev	±	Choisnard, Noémie	Calculated
16	Amino acids, uptake rate	AA upt rate	nmol/l/h	Choisnard, Noémie	According to Dugdale and Goering (1967)
17	Amino acids, uptake rate, integrated, standard deviation	AA upt rate int std dev	±	Choisnard, Noémie	Calculated
18	Carbon, inorganic, dissolved, uptake rate	DIC upt rate	µmol/l/h	Choisnard, Noémie	According to Dugdale and Goering (1967)
19	Carbon, inorganic, dissolved, uptake rate, standard deviation	DIC upt rate std dev	±	Choisnard, Noémie	Calculated
20	Ammonium uptake rate	[NH4]+ upt rate	nmol/l/h	Choisnard, Noémie	According to Dugdale and Goering (1967)	Microbial
21	Ammonium, uptake rate, integrated, standard deviation	NH4 upt rate int std dev	±	Choisnard, Noémie	Calculated	Microbial
22	Nitrification, integrated	Nitrification int	mmol/m²/day	Choisnard, Noémie	Calculated
23	Nitrification, integrated, standard deviation	Nitrification int std dev	±	Choisnard, Noémie	Calculated
24	Nitrate, uptake rate, integrated	NO3 upt rate int	mmol/m²/day	Choisnard, Noémie	Calculated
25	Nitrate, uptake rate, integrated, standard deviation	NO3 upt rate int std dev	±	Choisnard, Noémie	Calculated
26	Ammonium, uptake rate, integrated	NH4 upt rate int	mmol/m²/day	Choisnard, Noémie	Calculated
27	Ammonium, uptake rate, integrated, standard deviation	NH4 upt rate int std dev	±	Choisnard, Noémie	Calculated
28	Amino acids, uptake rate, integrated	AA upt rate int	mmol/m²/day	Choisnard, Noémie	Calculated
29	Amino acids, uptake rate, integrated, standard deviation	AA upt rate int std dev	±	Choisnard, Noémie	Calculated
30	Carbon, inorganic, dissolved, uptake rate, integrated	DIC upt rate int	mmol/m²/day	Choisnard, Noémie	Calculated
31	Carbon, inorganic, dissolved, uptake rate, integrated, standard deviation	DIC upt rate int std dev	±	Choisnard, Noémie	Calculated
32	Ammonium, uptake rate, integrated	NH4 upt rate int	mmol/m²/day	Choisnard, Noémie	Calculated	Microbial
33	Ammonium, uptake rate, integrated, standard deviation	NH4 upt rate int std dev	±	Choisnard, Noémie	Calculated	Microbial

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

228 data points

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