Citation:

PANGAEA.965427

Name: Updated pelagic 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 River; Budget; export flux; M174; Nitrogen

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2024-04-22 • DOI registered: 2024-04-23

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

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 (doi: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, six stations were visited to create an updated nitrogen budget of the Amazon and Pará estuaries. This dataset presents the results of the budget calculated for 6 stations of varying turbidity. Nitrification, nitrate, ammonium and amino acid uptake rates (in mol/day) are taken into account in this budget, and compared to riverine dissolved inorganic nitrogen inputs. Dissolved inorganic carbon uptake rates are also presented.

Keyword(s):

Amazon River; Budget; export flux; M174; Nitrogen

Supplement to:

Choisnard, Noémie; Umbricht, Jacqueline; Araujo, Moacyr; Böttcher, Michael Ernst; Burmeister, Christian; Liskow, Iris; Schmiedinger, Iris; Voss, Maren (2024): Nitrogen Assimilation and Nitrification in Surface Waters of the Amazon and Pará Estuaries. Journal of Geophysical Research: Oceans, 129(6), e2024JC021004, https://doi.org/10.1029/2024JC021004

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: 3 m * Maximum DEPTH, water: 10 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: North 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	Conductivity-Temperature-Depth- profiler (CTD), Sea-Bird Scientific, SBE911 plus	Geocode – Depth considered
6	Turbidity	Turbidity	arbitrary units	Choisnard, Noémie	Optical backscatter sensor, D&A, OBS-3
7	Area	Area	m²	Choisnard, Noémie
8	Latitude, center	Lat C		Choisnard, Noémie		Area 1
9	Longitude, center	Long C		Choisnard, Noémie		Area 1
10	Latitude, center	Lat C		Choisnard, Noémie		Area 2
11	Longitude, center	Long C		Choisnard, Noémie		Area 2
12	Latitude, center	Lat C		Choisnard, Noémie		Area 3
13	Longitude, center	Long C		Choisnard, Noémie		Area 3
14	Latitude, center	Lat C		Choisnard, Noémie		Area 4
15	Longitude, center	Long C		Choisnard, Noémie		Area 4
16	Nitrification, integrated	Nitrification int	mol/day	Choisnard, Noémie	According to Damashek et al. (2016)	Integrated over depth and the studied area.
17	Nitrification, integrated, standard deviation	Nitrification int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
18	Nitrate, uptake rate, integrated	NO3 upt rate int	mol/day	Choisnard, Noémie	According to Dugdale and Goering (1967)	Integrated over depth and the studied area.
19	Nitrate, uptake rate, integrated, standard deviation	NO3 upt rate int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
20	Ammonium, uptake rate, integrated	NH4 upt rate int	mol/day	Choisnard, Noémie	According to Dugdale and Goering (1967)	Integrated over depth and the studied area.
21	Ammonium, uptake rate, integrated, standard deviation	NH4 upt rate int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
22	Amino acids, uptake rate, integrated	AA upt rate int	mol/day	Choisnard, Noémie	According to Dugdale and Goering (1967)	Integrated over depth and the studied area.
23	Amino acids, uptake rate, integrated, standard deviation	AA upt rate int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
24	Dissolved organic carbon, uptake rate, integrated	DOC upt rate int	mol/day	Choisnard, Noémie	According to Dugdale and Goering (1967)	Integrated over depth and the studied area.
25	Dissolved organic carbon, uptake rate, integrated, standard deviation	DOC upt rate int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
26	Ammonium, dark, uptake rate, integrated	NH4 dark upt rate int	mol/day	Choisnard, Noémie	According to Dugdale and Goering (1967)	Integrated over depth and the studied area.
27	Ammonium, dark, uptake rate, integrated, standard deviation	NH4 dark upt rate int std dev	±	Choisnard, Noémie	Calculated	Integrated over depth and the studied area.
28	Nitrogen, inorganic, dissolved, loading	DIN loading	mol/day	Choisnard, Noémie	Calculated	RIVERINE INPUT. Integrated over depth and the studied area.

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

138 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 Date/Time	5 Depth water [m] (Depth considered, Conductivit...)	6 Turbidity [arbitrary units] (Optical backscatter sensor, D...)	7 Area [m²]	8 Lat C (Area 1)	9 Long C (Area 1)	10 Lat C (Area 2)	11 Long C (Area 2)	12 Lat C (Area 3)	13 Long C (Area 3)	14 Lat C (Area 4)	15 Long C (Area 4)	16 Nitrification int [mol/day] (Integrated over depth and the...)	17 Nitrification int std dev [±] (Integrated over depth and the...)	18 NO3 upt rate int [mol/day] (Integrated over depth and the...)	19 NO3 upt rate int std dev [±] (Integrated over depth and the...)	20 NH4 upt rate int [mol/day] (Integrated over depth and the...)	21 NH4 upt rate int std dev [±] (Integrated over depth and the...)	22 AA upt rate int [mol/day] (Integrated over depth and the...)	23 AA upt rate int std dev [±] (Integrated over depth and the...)	24 DOC upt rate int [mol/day] (Integrated over depth and the...)	25 DOC upt rate int std dev [±] (Integrated over depth and the...)	26 NH4 dark upt rate int [mol/day] (Integrated over depth and the...)	27 NH4 dark upt rate int std dev [±] (Integrated over depth and the...)	28 DIN loading [mol/day] (RIVERINE INPUT. Integrated ov...)
M174_9-2	-0.1217	-47.7311	2021-04-23T06:27:57	10	5	2.50E009	0.235839016	-47.97234625	-0.214599260	-47.45598887	-0.500237932	-47.79656501	-0.093750113	-48.21404545	11241253	909769	9976408	410449	40958622	1065388	4526480	94184	461842462	28376	5750011	86962	21763866
M174_10-2	-0.5976	-48.2605	2021-04-23T15:16:37	3	9	3.00E009	-0.654038674	-48.18108647	-0.478266078	-47.82952400	-0.082763798	-48.23601811	-0.621081731	-48.42278567	36684696	1784587	1411134	59284	1246675	1249664	0	0	0	10074	4526783	227278	21763866
M174_12-2	0.5968	-48.3738	2021-04-24T11:30:01	3	9	1.30E010	1.861488647	-49.45550044	0.016113124	-48.01629156	-0.247557976	-48.31292240	1.586955069	-49.84002190	848740038	28513872	2733120	344002	7756064	2909009	25756851	1063154	0	12648	105556700	1734544	306512000
M174_13-3	1.0499	-48.5844	2021-04-24T17:19:32	3	9	1.30E010	1.861488647	-49.45550044	0.016113124	-48.01629156	-0.247557976	-48.31292240	1.586955069	-49.84002190	509688447	21051800	4249250	490813	959098	2526445	60652158	275844	0	7800	51475715	1124054	306512000
M174_14-2	1.6126	-48.8396	2021-04-25T00:21:48	3	<3	1.08E010	2.168915207	-49.20281491	0.279783882	-47.78557869	0.060058425	-48.02727789	1.916390434	-49.44451411	15308149	576537	10758600	405834	19262391	2810613	130721195	223729	68730555	36629	14610106	160575	306512000
M174_17-16	1.4273	-48.4425	2021-04-27T11:40:39	10	<3	1.08E010	2.168915207	-49.20281491	0.279783882	-47.78557869	0.060058425	-48.02727789	1.916390434	-49.44451411	151319947	2827455	41034617	1291359	243489016	6212351	53309617	764953	1407014411	33375	44925864	523282	306512000