Citation:

PANGAEA.947116

Name: Methane concentration and oxidation rate in the Yangtze River Estuary (July 2021) and East China Sea (April 2021)
Published: 2022-08-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: methane concentrations; Methane flux; methane oxidation

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Published: 2022-08-16 • DOI registered: 2022-09-27

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Abstract:

We investigated the dynamic of methane (CH4) concentration, saturation, and sea-to-air flux in the typical near-shore (Yangtze River Estuary) and outer shelf (East China Sea) areas. We further determined the dynamic of aerobic methanotrophic activity employing in vitro radiotracer assay. The data presented here are beneficial to advancing our understanding for the methane cycle in the estuarine and shelf regions. Water samples were collected from the Yangtze River Estuary and East China Sea aboard the R/V “Runjiang 1 and Zheyuke 2”, “Xiangyang hong 18” during three expeditions in July and March-April 2021. Methane samples were collected directly using a 12 L Niskin bottle deployed on a Seabird 911 CTD rosette system, from which seawater temperature, salinity and depth were recorded. Methane samples in seawater were measured using a cryogenic purge-and-trap setup connected to an Agilent GC-8890 gas chromatograph with a flame ionization detector according to the detailed methods given in (Zhang et al., 2004). We used a radiotracer approach and added 3H-CH4 to seawater samples to determine the methan oxidation (MOx) rate by quantifying 3H-CH4 oxidation to 3H-H2O (Rogener et al., 2020).

Keyword(s):

methane concentrations; Methane flux; methane oxidation

Supplement to:

Mao, Shi-Hai; Zhang, Hong-Hai; Zhuang, Guang-Chao; Li, Xiao-Jun; Liu, Qiao; Zhou, Zhen; Wang, Wei-Lei; Li, Chun-Yang; Lu, Ke-Yu; Liu, Xi-Ting; Montgomery, Andrew; Joye, Samantha B; Zhang, Yu-Zhong; Yang, Gui-Peng (2022): Aerobic oxidation of methane significantly reduces global diffusive methane emissions from shallow marine waters. Nature Communications, 13, 7309, https://doi.org/10.1038/s41467-022-35082-y

Related to:

Mao, Shi-Hai; Zhang, Hong-Hai; Zhuang, Guang-Chao; Li, Xiao-Jun; Liu, Qiao; Zhou, Zhen (2022): Methane production in the Yangtze River Estuary and East China Sea in 2019/2020 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.947297

Rogener, Mary Katherine; Sipler, Rachel E; Hunter, Kimberley S; Bronk, Deborah A; Joye, Samantha B (2020): Pelagic methane oxidation in the northern Chukchi Sea. Limnology and Oceanography, 65(1), 96-110, https://doi.org/10.1002/lno.11254

Zhang, G L; Zhang, J; Kang, Y B; Liu, S M (2004): Distributions and fluxes of methane in the East China Sea and the Yellow Sea in spring. Journal of Geophysical Research, 109(C7), C07011, https://doi.org/10.1029/2004JC002268

Funding:

Fundamental Research Funds for the Central Universities, grant/award no. 202041008

Fundamental Research Funds for the Central Universities, grant/award no. 202172002

National Natural Science Foundation of China (NSFC), grant/award no. 42076031

Taishan Scholar Foundation of Shandong Province, grant/award no. tsqn201909057

Coverage:

Median Latitude: 30.006161 * Median Longitude: 122.937312 * South-bound Latitude: 26.450000 * West-bound Longitude: 120.960000 * North-bound Latitude: 32.391000 * East-bound Longitude: 124.778300

Date/Time Start: 2021-04-01T06:31:00 * Date/Time End: 2021-07-18T14:41:00

Minimum DEPTH, water: 1.40 m * Maximum DEPTH, water: 4.60 m

Event(s):

RJ-1_2021_A1-1 (A1-1) * Latitude: 31.985400 * Longitude: 122.243200 * Date/Time: 2021-07-15T09:39:00 * Elevation: -14.0 m * Location: Yangtze River Estuary * Campaign: * Basis: Runjiang 1 * Method/Device: (CTD-RO)

RJ-1_2021_A1-3 (A1-3) * Latitude: 32.120500 * Longitude: 122.734000 * Date/Time: 2021-07-15T13:15:00 * Elevation: -31.0 m * Location: Yangtze River Estuary * Campaign: * Basis: Runjiang 1 * Method/Device: (CTD-RO)

RJ-1_2021_A1-5 (A1-5) * Latitude: 32.224700 * Longitude: 123.241100 * Date/Time: 2021-07-15T16:35:00 * Elevation: -35.0 m * Location: Yangtze River Estuary * Campaign: * Basis: Runjiang 1 * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Mao, Shi-Hai
2	Station label	Station		Mao, Shi-Hai
3	Vessel	Vessel		Mao, Shi-Hai
4	DATE/TIME	Date/Time		Mao, Shi-Hai		Geocode
5	LONGITUDE	Longitude		Mao, Shi-Hai		Geocode
6	LATITUDE	Latitude		Mao, Shi-Hai		Geocode
7	Depth, bathymetric	Bathy depth	m	Mao, Shi-Hai
8	DEPTH, water	Depth water	m	Mao, Shi-Hai	CTD, Sea-Bird, SBE 911	Geocode
9	Temperature, water	Temp	°C	Mao, Shi-Hai	CTD, Sea-Bird, SBE 911
10	Salinity	Sal		Mao, Shi-Hai	CTD, Sea-Bird, SBE 911
11	Methane	CH4	nmol/l	Mao, Shi-Hai	Agilent GC-8890 gas chromatograph with a flame ionization detector
12	Methane, oxidation rate	MOX	nmol/l/day	Mao, Shi-Hai	Radiotracer
13	Area/locality	Area		Mao, Shi-Hai

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

585 data points

Data

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

1 Event	2 Station	3 Vessel	4 Date/Time	5 Longitude	6 Latitude	7 Bathy depth [m]	8 Depth water [m]	9 Temp [°C]	10 Sal	11 CH4 [nmol/l]	12 MOX [nmol/l/day]	13 Area
XYH-18_2021_S02-1	S02-1	Xiangyang hong 18	2021-04-01T06:31	122.8117	29.6283	49.0	3.00	14.5585	29.2444	11.6716	0.2815	East China Sea
XYH-18_2021_S02-2	S02-2	Xiangyang hong 18	2021-04-12T22:06	123.0883	29.4700	48.0	4.37	15.7955	32.7536	13.1321	0.1553	East China Sea
XYH-18_2021_S02-3	S02-3	Xiangyang hong 18	2021-04-13T01:31	123.3667	29.3233	71.0	2.60	16.3362	33.1092			East China Sea
XYH-18_2021_S02-4	S02-4	Xiangyang hong 18	2021-04-15T12:35	123.6483	29.1700	73.0	2.30	16.1918	33.2481	10.4057	0.1043	East China Sea
XYH-18_2021_S02-5	S02-5	Xiangyang hong 18	2021-04-15T23:03	123.9400	29.0183	79.0	3.14	16.6452	33.7158	6.3162	0.4827	East China Sea
XYH-18_2021_S02-6	S02-6	Xiangyang hong 18	2021-04-16T02:48	124.2050	28.8700	70.0	2.87	16.0775	32.6511	5.5372	0.0106	East China Sea
XYH-18_2021_S02-7	S02-7	Xiangyang hong 18	2021-04-16T06:50	124.5050	28.7200	79.0	1.70	18.4240	34.1830	3.8819		East China Sea
XYH-18_2021_S02-8	S02-8	Xiangyang hong 18	2021-04-16T10:39	124.7783	28.5717	89.0	3.00	16.7583	33.0756	3.6871	0.0957	East China Sea
XYH-18_2021_S03-1	S03-1	Xiangyang hong 18	2021-04-01T14:47	122.2800	28.6300	45.0	3.30	14.6970	29.7182	17.7086	2.0774	East China Sea
XYH-18_2021_S03-2	S03-2	Xiangyang hong 18	2021-04-17T11:16	122.5800	28.4683	64.0	2.80	16.3599	32.0068	5.0503	0.4348	East China Sea
XYH-18_2021_S03-3	S03-3	Xiangyang hong 18	2021-04-17T07:51	122.8783	28.3083	73.0	3.30	17.1483	32.4912	6.3162	0.2613	East China Sea
XYH-18_2021_S03-4	S03-4	Xiangyang hong 18	2021-04-17T04:46	123.1800	28.1600	80.0	1.80	16.7773	32.0189	9.9189	0.4327	East China Sea
XYH-18_2021_S03-5	S03-5	Xiangyang hong 18	2021-04-17T01:45	123.4800	28.0000	83.0	3.55	15.6715	31.8734	5.2451	0.3911	East China Sea
XYH-18_2021_S03-6	S03-6	Xiangyang hong 18	2021-04-16T23:02	123.7817	27.8400	86.0	2.53	16.6054	32.8102	4.4661	0.2493	East China Sea
XYH-18_2021_S04-1	S04-1	Xiangyang hong 18	2021-04-02T00:14	121.6283	27.8017	31.0	1.60	14.7189	29.5927	7.8741	0.1295	East China Sea
XYH-18_2021_S04-2	S04-2	Xiangyang hong 18	2021-04-19T10:48	121.9000	27.6283	65.0	4.00	16.2414	31.5932	6.9978	0.5369	East China Sea
XYH-18_2021_S04-3	S04-3	Xiangyang hong 18	2021-04-19T07:40	122.1700	27.4500	87.0	1.40	20.5186	34.1239	6.0241	0.4247	East China Sea
XYH-18_2021_S04-4	S04-4	Xiangyang hong 18	2021-04-19T05:20	122.4317	27.2800	87.0	2.30	20.5435	34.1293	7.6794	0.3101	East China Sea
XYH-18_2021_S04-5	S04-5	Xiangyang hong 18	2021-04-19T02:10	122.7000	27.1000	102.0	1.40	20.0672	34.0350	7.8741	0.1527	East China Sea
XYH-18_2021_S05-1	S05-1	Xiangyang hong 18	2021-04-02T09:16	120.9600	27.0017	36.0	3.25	15.8924	30.3270	7.7767	0.5892	East China Sea
XYH-18_2021_S05-2	S05-2	Xiangyang hong 18	2021-04-07T06:08	121.2283	26.8200	65.0	2.30	16.5144	31.0039	10.1136	0.5374	East China Sea
XYH-18_2021_S05-3	S05-3	Xiangyang hong 18	2021-04-06T11:48	121.5317	26.6300	73.0	4.40	17.9017	32.9766	7.0951	0.0683	East China Sea
XYH-18_2021_S05-4	S05-4	Xiangyang hong 18	2021-04-06T23:30	121.8200	26.4500	31.0	2.60	18.4959	33.3880	5.2451	0.4481	East China Sea
XYH-18_2021_S23-1	S23-1	Xiangyang hong 18	2021-04-08T10:31	124.4483	28.3400	90.0	4.60	17.7375	33.7629	7.2899	0.0515	East China Sea
XYH-18_2021_S23-2	S23-2	Xiangyang hong 18	2021-04-08T07:16	124.1183	28.0900	89.0	2.40	16.4136	33.0644	4.0766	0.0517	East China Sea
XYH-18_2021_S34-1	S34-1	Xiangyang hong 18	2021-04-08T01:09	123.4283	27.5983	95.0	2.24	17.6138	33.4379	4.3687	0.0667	East China Sea
XYH-18_2021_S34-2	S34-2	Xiangyang hong 18	2021-04-07T22:07	123.0700	27.3500	104.0	2.80	16.6551	32.7206	10.0163	0.1852	East China Sea
RJ-1_2021_A1-1	A1-1	Runjiang 1	2021-07-15T09:39	122.2432	31.9854	14.0	2.00	25.4200	5.1300	11.5870	0.1029	Yangtze River Estuary
RJ-1_2021_A1-3	A1-3	Runjiang 1	2021-07-15T13:15	122.7340	32.1205	31.0	3.00	23.9200	28.5100	10.9029		Yangtze River Estuary
RJ-1_2021_A1-5	A1-5	Runjiang 1	2021-07-15T16:35	123.2411	32.2247	35.0	3.00	24.7500	30.7000	9.4104	0.1175	Yangtze River Estuary
RJ-1_2021_A1-7	A1-7	Runjiang 1	2021-07-15T18:08	123.7471	32.3422	39.0	3.00	26.6500	26.1800	6.1766	0.1213	Yangtze River Estuary
RJ-1_2021_A1-8	A1-8	Runjiang 1	2021-07-15T19:28	123.9774	32.3910	38.0	3.00	27.1600	24.8100	4.7068	0.0693	Yangtze River Estuary
RJ-1_2021_A2-1	A2-1	Runjiang 1	2021-07-16T05:50	122.2335	31.7480	18.0	3.00	25.9800	19.5900	13.5392	0.2384	Yangtze River Estuary
RJ-1_2021_A2-3	A2-3	Runjiang 1	2021-07-16T07:13	122.7383	31.7923	34.0	3.00	25.9500	20.0000	8.3023	0.2158	Yangtze River Estuary
RJ-1_2021_A2-5	A2-5	Runjiang 1	2021-07-16T10:10	123.2420	31.8324	35.0	3.00	25.0400	24.5500	7.8274	0.1863	Yangtze River Estuary
RJ-1_2021_A2-7	A2-7	Runjiang 1	2021-07-16T13:35	123.7386	31.8792	39.0	3.00	27.1100	23.5000	6.6289	0.1536	Yangtze River Estuary
RJ-1_2021_A2-8	A2-8	Runjiang 1	2021-07-16T15:04	123.9712	31.8808	39.0	3.00	27.7600	24.2800	5.2947	0.0721	Yangtze River Estuary
RJ-1_2021_A3-7	A3-7	Runjiang 1	2021-07-16T20:04	123.7669	31.4083	36.0	3.00	27.0000	29.2600	7.1591	0.1001	Yangtze River Estuary
RJ-1_2021_A3-8	A3-8	Runjiang 1	2021-07-16T18:30	123.9848	31.4072	37.0	3.00	27.7600	27.6600	5.2273	0.0530	Yangtze River Estuary
RJ-1_2021_A3-1	A3-1	Runjiang 1	2021-07-17T10:28	122.2568	31.4979	12.0	3.00	23.0300	25.0000	15.6818	0.2311	Yangtze River Estuary
RJ-1_2021_A3-3	A3-3	Runjiang 1	2021-07-17T08:57	122.7639	31.4710	28.0	3.00	26.3700	22.8900	10.4545	0.0988	Yangtze River Estuary
RJ-1_2021_A3-5	A3-5	Runjiang 1	2021-07-17T05:47	123.2468	31.4408	34.0	3.00	26.3100	25.7100	8.5227	0.0526	Yangtze River Estuary
RJ-1_2021_A4-1	A4-1	Runjiang 1	2021-07-14T13:00	122.2685	31.3362	8.0	3.00	22.0000	29.1300	11.4773	0.0895	Yangtze River Estuary
RJ-1_2021_A4-3	A4-3	Runjiang 1	2021-07-17T13:02	122.8207	31.2173	47.0	3.00	25.3100	27.4400	9.3636	0.1346	Yangtze River Estuary
RJ-1_2021_A4-5	A4-5	Runjiang 1	2021-07-17T16:25	123.2479	31.0496	62.0	3.00	27.8700	29.9800	6.7045	0.1069	Yangtze River Estuary
RJ-1_2021_A4-7	A4-7	Runjiang 1	2021-07-17T19:32	123.7368	30.9528	50.0	3.00	28.0600	28.2800	5.1136		Yangtze River Estuary
RJ-1_2021_A4-8	A4-8	Runjiang 1	2021-07-17T21:00	123.9784	30.8914	40.0	3.00	27.5500	28.9900	4.7727	0.0785	Yangtze River Estuary
ZY-2_2021_A5-1	A5-1	Zheyuke 2	2021-07-14T10:17	122.2490	30.9995	9.2	2.30	24.6900	17.9000	31.5909		Yangtze River Estuary
ZY-2_2021_A5-2	A5-2	Zheyuke 2	2021-07-14T11:52	122.5010	30.9140	16.8	1.90	25.0410	22.2310	18.8636	0.3509	Yangtze River Estuary
ZY-2_2021_A5-3	A5-3	Zheyuke 2	2021-07-15T16:40	122.7477	30.8277	26.5	2.10	22.9800	30.7700	12.3864	0.2585	Yangtze River Estuary
ZY-2_2021_A5-4	A5-4	Zheyuke 2	2021-07-15T18:08	122.9986	30.7437	45.8	2.30	26.6900	29.8100	9.7727		Yangtze River Estuary
ZY-2_2021_A5-5	A5-5	Zheyuke 2	2021-07-16T06:43	123.2623	30.6578	57.8	3.10	27.6100	30.9000	6.4773		Yangtze River Estuary
ZY-2_2021_A5-6	A5-6	Zheyuke 2	2021-07-16T07:58	123.4997	30.5709	53.3	3.30	28.0400	30.1600	7.8295	0.1469	Yangtze River Estuary
ZY-2_2021_A5-7	A5-7	Zheyuke 2	2021-07-16T09:11	123.7485	30.4841	53.3	2.40	28.2000	29.2400	5.1682	0.0829	Yangtze River Estuary
ZY-2_2021_A5-8	A5-8	Zheyuke 2	2021-07-16T10:49	123.9723	30.4003	49.4	2.10	28.2500	29.5000	4.5455	0.0143	Yangtze River Estuary
ZY-2_2021_A6-1	A6-1	Zheyuke 2	2021-07-12T17:25	122.3134	30.7168	11.6	2.50	26.4100	19.7200	19.7727		Yangtze River Estuary
ZY-2_2021_A6-2	A6-2	Zheyuke 2	2021-07-12T15:25	122.5328	30.6267	22.5	2.20	23.7600	27.5600	17.2727	0.2484	Yangtze River Estuary
ZY-2_2021_A6-3	A6-3	Zheyuke 2	2021-07-12T13:59	122.7443	30.5456	39.0	2.70	24.2000	27.5400	11.8182		Yangtze River Estuary
ZY-2_2021_A6-4	A6-4	Zheyuke 2	2021-07-16T18:44	123.0089	30.4218	52.1	2.60	28.3100	30.4200	9.2045	0.1186	Yangtze River Estuary
ZY-2_2021_A6-5	A6-5	Zheyuke 2	2021-07-16T17:07	123.2629	30.3121	56.8	2.10	28.3800	28.6300	8.2955	0.0530	Yangtze River Estuary
ZY-2_2021_A6-6	A6-6	Zheyuke 2	2021-07-16T15:51	123.5004	30.2115	61.0	2.50	28.5300	28.7200	8.7500	0.0610	Yangtze River Estuary
ZY-2_2021_A6-7	A6-7	Zheyuke 2	2021-07-16T14:23	123.7600	30.1009	60.3	3.20	29.0000	29.9200	7.2727	0.0695	Yangtze River Estuary
ZY-2_2021_A6-8	A6-8	Zheyuke 2	2021-07-16T13:04	123.9870	30.0212	63.3	3.40	28.6800	30.0400	6.2500	0.1048	Yangtze River Estuary
RJ-1_2021_A7-1	A7-1	Runjiang 1	2021-07-12T18:59	122.2381	30.4860	10.0	3.00	25.4800	21.3100	14.2045		Yangtze River Estuary
RJ-1_2021_A7-3	A7-3	Runjiang 1	2021-07-18T14:41	122.7560	30.2403	22.0	3.00	26.2800	28.8600	9.9659		Yangtze River Estuary
RJ-1_2021_A7-5	A7-5	Runjiang 1	2021-07-18T11:15	123.2715	29.9703	67.0	3.00	28.4600	30.2700	6.8182		Yangtze River Estuary
RJ-1_2021_A7-7	A7-7	Runjiang 1	2021-07-18T07:40	123.7565	29.7193	70.0	3.00	27.9800	32.9000	6.7045		Yangtze River Estuary
RJ-1_2021_A7-8	A7-8	Runjiang 1	2021-07-18T05:52	123.9964	29.6030	66.0	3.00	28.3600	34.7000	4.6591		Yangtze River Estuary
RJ-1_2021_B1	B1	Runjiang 1	2021-07-14T07:56	121.8783	31.3770	16.5	3.00	28.4200	0.1100	47.8536		Yangtze River Estuary
RJ-1_2021_B2	B2	Runjiang 1	2021-07-14T09:08	121.6407	31.5046	19.0	3.00	28.5700	0.1120			Yangtze River Estuary
RJ-1_2021_B3	B3	Runjiang 1	2021-07-14T10:30	121.8783	31.3770	16.0	3.00	28.6500	0.1143	28.2589	2.3943	Yangtze River Estuary
RJ-1_2021_C1	C1	Runjiang 1	2021-07-13T16:16	121.1046	31.7489	12.3	3.00	28.4200	0.1090	79.1169	7.4642	Yangtze River Estuary
RJ-1_2021_C2	C2	Runjiang 1	2021-07-13T14:20	121.3460	31.5656	19.4	2.30	28.3800	0.1130			Yangtze River Estuary
RJ-1_2021_C3	C3	Runjiang 1	2021-07-13T12:18	121.6324	31.3722	13.8	3.00	28.6600	0.1130	40.5268	3.8544	Yangtze River Estuary
RJ-1_2021_C4	C4	Runjiang 1	2021-07-13T10:57	121.7920	31.2422	9.7	3.00	28.5710	0.1200			Yangtze River Estuary
RJ-1_2021_C5	C5	Runjiang 1	2021-07-13T08:38	121.9600	31.1200	7.2	2.00	27.5800	6.6200	37.4061		Yangtze River Estuary