Citation:

PANGAEA.945550

Name: Concentrations and Fluxes of Non-methane Hydrocarbons in the Northwest Pacific Ocean
Published: 2022-06-20
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Aerosol deposition; Isoprene; Non-methane Hydrocarbons; Northwest Pacific Ocean; sea-to-air flux

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Abstract:

Dataset contains environmental parameters and concentrations (pmol L-1) and fluxes (nmol m-2 d-1) of non-methane hydrocarbons in the Northwest Pacific Ocean (2017-10 to 2017-12).

Keyword(s):

Aerosol deposition; Isoprene; Non-methane Hydrocarbons; Northwest Pacific Ocean; sea-to-air flux

Further details:

Wanninkhof, Rik (1992): Relationship between wind speed and gas exchange over the ocean. Journal of Geophysical Research, 97(C5), 7373, https://doi.org/10.1029/92JC00188

Wu, Ying-Cui; Li, Jian-Long; Wang, Jian; Zhuang, Guang-Chao; Liu, Xi-Ting; Zhang, Hong-Hai; Yang, Gui-Peng (2021): Occurance, emission and environmental effects of non-methane hydrocarbons in the Yellow Sea and the East China Sea. Environmental Pollution, 270, 116305, https://doi.org/10.1016/j.envpol.2020.116305

Funding:

Fundamental Research Funds for the Central Universities, grant/award no. 202061006

Fundamental Research Funds for the Central Universities, grant/award no. 202072001

Key Laboratory of Global Change and Marine-Atmospheric Chemistry, Third Institute of Oceanography, State Oceanic Administration, grant/award no. GCMAC2007

National Natural Science Foundation of China (NSFC), grant/award no. 41876082

Coverage:

Median Latitude: 12.867925 * Median Longitude: 147.207547 * South-bound Latitude: 0.000000 * West-bound Longitude: 142.000000 * North-bound Latitude: 40.000000 * East-bound Longitude: 163.000000

Date/Time Start: 2017-10-06T00:00:00 * Date/Time End: 2017-12-05T00:00:00

Minimum DEPTH, water: 3.0 m * Maximum DEPTH, water: 3.0 m

Event(s):

RvDFH2_ST0301 (ST0301) * Latitude: 0.000000 * Longitude: 163.000000 * Date/Time: 2017-11-01T00:00:00 * Campaign: * Basis:

RvDFH2_ST0302 (ST0302) * Latitude: 0.000000 * Longitude: 162.000000 * Date/Time: 2017-11-02T00:00:00 * Campaign: * Basis:

RvDFH2_ST0303 (ST0303) * Latitude: 0.000000 * Longitude: 161.000000 * Date/Time: 2017-11-02T00:00:00 * Campaign: * Basis:

Comment:

Cruise Information:

The cruise was conducted onboard the R/V 'Dong Fang Hong 2' from October 6 to December 7, 2017.

Sample Collection and Analysis:

Seawater samples were collected with Niskin bottles (12-L) installed in a conductivity-temperature-depth (CTD, Seabird 911) rosette. The samples were packed into 120-mL brown-colored glass vials. Two drops of saturated HgCl2 solution were added to each sample to prevent potential microbial activity before the sample storage (Wu et al., 2021). The relevant characteristics of the marine samples were quantified by a gas chromatograph with a mass spectrum detector (GC-MSD) (Agilent 7890A/5975C, USA) equipped with a purge-and-trap (P&T) system in the case of selective ion monitoring (Wu et al., 2021).

Calculation of Sea-to-air Fluxes:

The equation used herein to calculate the sea-to-air fluxes (F, nmol m-2 d-1) of NMHCs can be expressed as follows: F=k*(CW-Ca*H), where k (m s-1) represents the gas transfer velocity computed by Wanninkhof. (1992), Cw (pmol L-1) and Ca (pptv) are the NMHCs concentrations in the surface seawater and marine atmosphere, respectively, and H represents Henry's Law constant.

All stations were at 'integer degree' and the precision is +- 0.05 degree.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Wu, Ying-Cui
2	DATE/TIME	Date/Time		Wu, Ying-Cui	Geocode – Sampling date
3	Station label	Station		Wu, Ying-Cui
4	LONGITUDE	Longitude		Wu, Ying-Cui	Geocode
5	LATITUDE	Latitude		Wu, Ying-Cui	Geocode
6	DEPTH, water	Depth water	m	Wu, Ying-Cui	Geocode
7	Temperature, water	Temp	°C	Wu, Ying-Cui	Seawater temperature
8	Salinity	Sal		Wu, Ying-Cui	PSU
9	Chlorophyll a	Chl a	µg/l	Wu, Ying-Cui
10	Ethane	C2H6	pmol/l	Wu, Ying-Cui
11	Ethene	C2H4	pmol/l	Wu, Ying-Cui
12	Propane	C3H8	pmol/l	Wu, Ying-Cui
13	Propene	C3H6	pmol/l	Wu, Ying-Cui
14	Isobutane	i-C4H10	pmol/l	Wu, Ying-Cui
15	n-Butane	n-C4H10	pmol/l	Wu, Ying-Cui
16	Isoprene	C5H8	pmol/l	Wu, Ying-Cui
17	Ethane, flux	C2H6 flux	nmol/m²/day	Wu, Ying-Cui
18	Ethene, flux	C2H4 flux	nmol/m²/day	Wu, Ying-Cui
19	Propane, flux	C3H8 flux	nmol/m²/day	Wu, Ying-Cui
20	Propene, flux	C3H6 flux	nmol/m²/day	Wu, Ying-Cui
21	Isobutane, flux	i-C4H10 flux	nmol/m²/day	Wu, Ying-Cui
22	n-Butane, flux	n-C4H10 flux	nmol/m²/day	Wu, Ying-Cui
23	Isoprene, flux	C5H8 flux	nmol/m²/day	Wu, Ying-Cui

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

954 data points

Data

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

1 Event	2 Date/Time	3 Station	4 Longitude	5 Latitude	6 Depth water [m]	7 Temp [°C]	8 Sal	9 Chl a [µg/l]	10 C2H6 [pmol/l]	11 C2H4 [pmol/l]	12 C3H8 [pmol/l]	13 C3H6 [pmol/l]	14 i-C4H10 [pmol/l]	15 n-C4H10 [pmol/l]	16 C5H8 [pmol/l]	17 C2H6 flux [nmol/m²/day]	18 C2H4 flux [nmol/m²/day]	19 C3H8 flux [nmol/m²/day]	20 C3H6 flux [nmol/m²/day]	21 i-C4H10 flux [nmol/m²/day]	22 n-C4H10 flux [nmol/m²/day]	23 C5H8 flux [nmol/m²/day]
RvDFH2_ST0701	2017-10-06	ST0701	149.0	40.0	3.0	20.4	34.2	0.21	21.5	36.4	18.0	33.7	11.0	10.6	69.1	108.9	225.6	94.0	185.0	54.5	51.5	339.9
RvDFH2_ST0703	2017-10-08	ST0703	149.0	38.0	3.0	21.1	34.2	0.16	16.0	38.8	11.8	25.1	7.3	6.8	45.5	9.5	30.4	7.6	17.3	4.5	4.1	27.9
RvDFH2_ST0704	2017-10-09	ST0704	149.0	37.0	3.0	23.7	34.1	0.26	18.2	27.1	11.4	16.6	6.1	9.1	63.4	35.7	66.9	23.3	35.7	12.0	17.6	124.9
RvDFH2_ST0706	2017-10-10	ST0706	146.0	36.0	3.0	21.5	33.7	0.21	12.1	36.2	13.8	31.0	10.2	10.2	52.9	3.5	15.0	4.8	11.4	3.4	3.3	17.3
RvDFH2_ST0708	2017-10-11	ST0708	146.0	34.0	3.0	25.3	34.6	0.05	19.0	49.5	13.7	28.6	8.2	10.1	30.0	28.8	94.9	21.7	48.1	12.4	15.1	44.0
RvDFH2_ST0709	2017-10-12	ST0709	146.0	33.0	3.0	25.6	34.8	0.04	18.4	32.9	12.7	25.4	7.0	6.0	12.5	44.9	101.4	32.5	69.0	17.1	14.1	27.4
RvDFH2_ST0710	2017-10-13	ST0710	146.0	32.0	3.0	26.1	34.7	0.08	17.7	29.4	9.1	29.5	9.3	10.8	17.1	5.0	10.5	2.6	9.3	2.7	3.0	4.5
RvDFH2_ST0711	2017-10-14	ST0711	146.0	31.0	3.0	26.7	34.2	0.02	20.8	29.0	14.1	28.3	8.2	8.7	16.6	1.4	2.4	1.0	2.1	0.5	0.6	1.0
RvDFH2_ST0712	2017-10-14	ST0712	146.0	30.0	3.0	27.1	34.5	0.03	18.8	30.2	13.0	26.7	6.9	9.1	13.8	2.8	5.6	2.0	4.4	1.0	1.3	1.9
RvDFH2_ST0713	2017-10-14	ST0713	146.0	29.0	3.0	28.2	34.7	0.03	19.2	33.4	14.1	27.4	7.6	10.8	19.2	69.5	151.4	53.3	109.6	27.4	38.5	65.0
RvDFH2_ST0715	2017-10-15	ST0715	146.0	27.0	3.0	28.6	34.8	0.04	18.9	28.8	11.6	29.4	8.0	10.1	11.2	98.0	186.8	62.3	169.3	41.5	51.6	51.1
RvDFH2_ST0716	2017-10-16	ST0716	146.0	26.0	3.0	28.4	35.1	0.02	18.1	33.6	13.8	26.2	7.3	7.6	13.1	79.6	187.5	64.2	128.9	32.4	32.9	52.4
RvDFH2_ST0717	2017-10-16	ST0717	146.0	25.0	3.0	28.7	35.1	0.04	19.2	27.7	12.9	28.8	7.8	7.0	8.9	174.6	313.6	121.8	289.7	70.7	61.4	67.9
RvDFH2_ST0718	2017-10-16	ST0718	146.0	24.0	3.0	28.6	34.9	0.03	18.1	26.9	10.2	25.6	7.3	7.0	23.3	173.8	325.8	101.5	274.8	70.7	65.8	215.4
RvDFH2_ST0719	2017-10-17	ST0719	146.0	23.0	3.0	28.7	34.9	0.05	15.0	29.3	10.3	19.7	5.2	6.5	6.6	58.8	152.8	44.1	90.0	21.4	26.1	21.5
RvDFH2_ST0721	2017-12-05	ST0721	143.0	21.0	3.0	28.4	34.4	0.06	6.8	10.9	9.6	5.6	3.0	3.9	7.4	4.4	14.2	10.7	6.0	3.2	4.0	6.5
RvDFH2_ST0722	2017-11-30	ST0722	143.0	20.0	3.0	28.7	34.7	0.04	1.0	5.8	0.1	1.8	0.7	1.1	2.8	-14.4	29.6	-3.2	5.4	2.5	3.5	5.8
RvDFH2_ST0723	2017-11-28	ST0723	143.0	19.0	3.0	29.0	34.5	0.09	5.1	8.0	3.2	6.9	2.5	2.4	3.2	10.0	48.1	14.1	36.3	12.4	10.8	8.7
RvDFH2_ST0724	2017-11-28	ST0724	143.0	18.0	3.0	29.1	34.5	0.08	4.4	9.2	3.1	6.9	2.8	3.0	25.4	5.0	50.3	12.2	32.6	12.5	12.5	113.4
RvDFH2_ST0725	2017-11-28	ST0725	143.0	17.0	3.0	29.1	34.5	0.09	8.1	10.6	4.0	10.4	2.3	2.9	4.9	36.6	82.2	23.5	71.6	14.2	16.9	22.2
RvDFH2_ST0726	2017-11-27	ST0726	143.0	16.0	3.0	29.2	34.5	0.06	11.6	14.9	6.8	16.4	3.7	4.7	5.7	49.7	90.8	33.5	89.2	18.1	22.2	21.2
RvDFH2_ST0727	2017-11-27	ST0727	143.0	15.0	3.0	29.2	34.5	0.09	7.4	11.3	4.7	8.9	2.9	4.3	3.5	30.4	86.3	28.0	59.2	17.8	25.7	12.7
RvDFH2_ST0728	2017-11-26	ST0728	143.0	14.0	3.0	29.2	34.5	0.05	6.1	7.3	2.5	6.1	1.7	2.1	2.4	27.9	74.0	17.3	53.8	13.9	15.7	7.6
RvDFH2_ST0729	2017-11-26	ST0729	143.0	13.0	3.0	29.3	34.3	0.05	8.8	11.5	6.4	10.5	3.0	6.0	61.8	46.7	99.2	45.1	80.0	20.9	41.5	443.6
RvDFH2_ST0730	2017-11-25	ST0730	143.0	12.0	3.0	29.4	34.1	0.02	8.5	11.5	5.1	9.5	2.3	5.2	7.6	57.9	130.6	45.8	94.5	20.7	46.9	58.5
RvDFH2_ST0731	2017-11-15	ST0731	143.0	11.0	3.0	29.7	34.3	0.02	5.4	10.7	3.5	5.9	2.4	2.2	3.1	4.9	27.0	6.5	12.4	4.8	4.0	3.3
RvDFH2_ST0732	2017-11-14	ST0732	143.0	10.0	3.0	29.5	34.3	0.03	12.6	16.3	7.1	16.6	4.6	3.7	25.9	40.1	71.6	25.3	64.9	16.3	12.2	89.3
RvDFH2_ST0734	2017-11-13	ST0734	143.0	8.0	3.0	29.8	33.9	0.06	4.6	12.4	4.4	5.7	1.9	2.3	16.1	2.8	31.6	8.6	11.9	3.8	4.2	31.5
RvDFH2_ST0735	2017-11-13	ST0735	143.0	7.0	3.0	29.8	33.3	0.04	18.9	27.6	14.8	27.6	5.8	5.1	5.0	14.4	26.3	11.9	23.4	4.4	3.7	2.7
RvDFH2_ST0736	2017-11-13	ST0736	143.0	6.0	3.0	30.1	33.4	0.07	13.8	18.6	6.5	18.2	4.4	4.8	5.6	12.3	22.2	6.2	19.3	4.2	4.4	4.0
RvDFH2_ST0738	2017-11-12	ST0738	143.0	4.0	3.0	30.1	34.0	0.06	12.0	20.9	7.2	16.8	4.2	4.7	5.8	1.7	4.1	1.1	2.9	0.7	0.7	0.7
RvDFH2_ST0739	2017-11-11	ST0739	143.0	3.0	3.0	30.3	33.9	0.06	12.6	20.6	8.0	17.4	4.0	4.7	8.3	1.1	2.6	0.8	1.9	0.4	0.5	0.7
RvDFH2_ST0740	2017-11-11	ST0740	143.0	2.0	3.0	30.2	33.9	0.06	18.5	26.3	9.3	25.6	6.0	6.4	7.8	4.2	7.5	2.2	6.5	1.4	1.4	1.5
RvDFH2_ST0741	2017-11-11	ST0741	143.0	1.0	3.0	30.1	33.7	0.05	31.7	24.8	7.1	45.9	9.9	9.5	6.2	15.3	13.7	3.1	22.8	4.4	4.1	2.1
RvDFH2_ST0301	2017-11-01	ST0301	163.0	0.0	3.0	29.1	35.0	0.21	22.8	46.2	15.8	36.1	5.8	3.4	55.1	16.8	41.4	11.8	28.6	4.1	2.2	38.8
RvDFH2_ST0302	2017-11-02	ST0302	162.0	0.0	3.0	29.6	35.3	0.19	21.5	44.4	16.4	36.1	10.9	11.2	14.6	14.9	37.8	11.7	27.1	7.4	7.5	9.0
RvDFH2_ST0303	2017-11-02	ST0303	161.0	0.0	3.0	30.0	35.4	0.22	14.3	37.1	9.9	25.1	7.1	6.2	16.0	13.6	47.8	10.4	28.4	7.3	6.1	15.1
RvDFH2_ST0306	2017-11-03	ST0306	158.0	0.0	3.0	30.1	34.1	0.16	8.7	30.2	6.6	14.1	4.4	5.2	24.5	8.7	51.9	8.9	20.9	5.9	6.8	32.2
RvDFH2_ST0307	2017-11-04	ST0307	157.0	0.0	3.0	30.1	34.0	0.06	9.2	30.5	8.4	16.4	4.9	6.1	19.6	1.6	8.8	1.9	4.1	1.1	1.3	4.2
RvDFH2_ST0308	2017-11-04	ST0308	156.0	0.0	3.0	30.8	34.3	0.07	11.1	25.8	7.0	19.7	9.7	10.9	13.1	20.0	69.0	14.9	46.4	20.9	23.1	25.3
RvDFH2_ST0309	2017-11-04	ST0309	155.0	0.0	3.0	29.9	34.5	0.04	19.9	40.3	14.2	31.9	9.8	10.4	15.5	42.7	107.8	31.6	75.3	20.9	21.7	30.2
RvDFH2_ST0310	2017-11-05	ST0310	154.0	0.0	3.0	29.9	34.6	0.09	18.7	37.6	13.1	29.4	8.9	8.0	13.6	1.6	4.0	1.2	2.8	0.8	0.7	1.0
RvDFH2_ST0311	2017-11-05	ST0311	153.0	0.0	3.0	30.0	34.6	0.06	15.1	32.7	12.3	21.8	8.3	8.8	22.7	9.7	28.0	8.7	16.3	5.7	5.9	14.7
RvDFH2_ST0312	2017-11-06	ST0312	152.0	0.0	3.0	30.2	34.6	0.06	13.7	24.6	8.5	18.1	5.2	6.1	19.9	8.5	20.9	5.8	13.5	3.5	4.0	12.8
RvDFH2_ST0313	2017-11-06	ST0313	151.0	0.0	3.0	30.4	34.8	0.04	11.4	21.7	6.4	15.4	4.1	4.9	11.9	4.6	12.9	3.0	8.0	1.9	2.2	5.1
RvDFH2_ST0315	2017-11-07	ST0315	149.0	0.0	3.0	30.0	33.9	0.05	10.6	18.8	6.7	14.9	4.0	4.5	13.1	10.7	28.6	8.2	19.9	4.8	5.2	14.6
RvDFH2_ST0316	2017-11-07	ST0316	148.0	0.0	3.0	30.2	33.8	0.08	14.1	20.8	9.1	20.4	6.0	6.9	5.7	42.6	84.3	30.3	73.4	19.5	21.9	13.9
RvDFH2_ST0317	2017-11-08	ST0317	147.0	0.0	3.0	30.0	34.0	0.06	10.3	19.5	6.1	12.7	3.8	4.8	7.3	7.6	22.1	5.4	12.5	3.4	4.2	5.4
RvDFH2_ST0318	2017-11-08	ST0318	146.0	0.0	3.0	30.1	33.9	0.09	5.0	13.2	5.2	6.0	2.8	3.6	3.5	0.9	8.2	2.6	3.1	1.4	1.7	1.0
RvDFH2_ST0319	2017-11-08	ST0319	145.0	0.0	3.0	30.1	33.7	0.04	10.9	17.1	7.1	16.7	4.6	5.1	7.1	1.4	3.3	1.1	2.9	0.7	0.8	0.9
RvDFH2_ST0320	2017-11-08	ST0320	144.0	0.0	3.0	29.9	33.7	0.04	9.9	18.4	6.6	14.2	3.6	4.6	26.9	2.7	7.7	2.2	5.2	1.2	1.5	8.8
RvDFH2_ST0321	2017-11-09	ST0321	143.0	0.0	3.0	30.2	33.9	0.03	15.5	23.3	10.1	19.2	5.1	5.0	24.2	17.5	34.5	12.3	25.1	6.0	5.6	27.6
RvDFH2_ST0322	2017-11-09	ST0322	142.0	0.0	3.0	30.2	33.8	0.05	7.3	17.9	5.6	11.0	3.7	3.2	21.5	11.4	54.3	13.3	28.8	8.9	7.2	50.3