Wu, Ying-Cui; Gao, Xuxu; Zhang, Hong-Hai; Liu, Yongzheng; Wang, Jian; Xu, Feng; Zhang, Guiling (2022): Concentrations and Fluxes of Non-methane Hydrocarbons in the Northwest Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945546, In: Wu, Y-C et al. (2022): Biogeochemical Characteristics of Isoprene and Non-methane Hydrocarbons in the Northwest Pacific Ocean and Their Responses to Atmospheric Aerosol Deposition [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.945550
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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):
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:
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: DO201710-12 * Basis: Dongfanghong 2
RvDFH2_ST0302 (ST0302) * Latitude: 0.000000 * Longitude: 162.000000 * Date/Time: 2017-11-02T00:00:00 * Campaign: DO201710-12 * Basis: Dongfanghong 2
RvDFH2_ST0303 (ST0303) * Latitude: 0.000000 * Longitude: 161.000000 * Date/Time: 2017-11-02T00:00:00 * Campaign: DO201710-12 * Basis: Dongfanghong 2
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 | Method/Device | 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