Li, Xiao-Jun; Liang, Hao-Rui; Zhuang, Guang-Chao; Wu, Ying-Cui; Li, Si-Tong; Zhang, Hong-Hai; Montgomery, Andrew; Yang, Gui-Peng (2021): Concentration of Chl-a, DOC, nutrients and Non-methane hydrocarbons in the Jiaozhou Bay on the east coast of North China (2016.9-2017.8) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.935801, In: Li, X-J et al. (2021): Annual Variations of Isoprene and Other Non-methane Hydrocarbons in the Jiaozhou Bay on the east coast of North China [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.935806
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Abstract:
Seawater samples were collected monthly using a 5 L plexiglass water sampler from surface (<1 m) and subsurface (~1 m above bottom) layers at 14 study sites in Jiaozhou Bay during September 2016 and August 2017. Seawater NMHCs concentrations were measured with a customized purge and trap preconcentration setup coupled to a gas chromatography-mass spectrometer.Jiaozhou_Bay_2016-2017.
Related to:
Li, Xiao-Jun; Liang, Hao‐Rui; Zhuang, Guang-Chao; Wu, Ying‐Cui; Li, Si‐Tong; Zhang, Hong-Hai; Montgomery, Andrew; Yang, Gui‐Peng (2022): Annual Variations of Isoprene and Other Non‐Methane Hydrocarbons in the Jiaozhou Bay on the East Coast of North China. Journal of Geophysical Research: Biogeosciences, 127(3), e2021JG006531, https://doi.org/10.1029/2021JG006531
Coverage:
Median Latitude: 36.119357 * Median Longitude: 120.236786 * South-bound Latitude: 36.030000 * West-bound Longitude: 120.125000 * North-bound Latitude: 36.200000 * East-bound Longitude: 120.350000
Date/Time Start: 2016-09-01T00:00:00 * Date/Time End: 2017-08-01T00:00:00
Event(s):
Jiaozhou_Bay_2016-2017 * Latitude: 36.119000 * Longitude: 120.237000 * Date/Time Start: 2016-09-01T00:00:00 * Date/Time End: 2017-08-15T00:00:00 * Location: North China * Method/Device: Water sample (WS) * Comment: Lat/long are median coordinates. South-bound Latitude: 36.200 * West-bound Longitude:120.125 * North-bound Latitude: 36.030 * East-bound Longitude: 120.350
Comment:
Analysis methods：
* Temperature，salinity was measured by CTD probe (SBE 38).
* Nutrients were determined with an AA3 nutrients analyzer (SEAL Analytical, UK).
* For Chl-a analysis, ~300 ml seawater was filtered through an 0.7 μm Whatman GF/F filter to collect phytoplankton biomass. The filters were soaked in 90% acetone solution for 24 hours and then centrifuged for 10 min at 4000 rpm. The supernatant was analyzed with a fluorescence spectrophotometer (Hitachi F-4500).
* DOC was determined using the high-temperature catalytic oxidation method by non-dispersive infrared gas analyzer (Shimadzu TOC-142 VCPH, Shimadzu Co., Japan).
* Seawater NMHCs concentrations were measured with a customized purge and trap preconcentration setup coupled to a gas chromatography-mass spectrometer (GC-MS,Agilent 7890N/5973N, USA).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Li, Xiao-Jun | Geocode – Sampling Time | ||
| 2 | Station label | Station | Li, Xiao-Jun | |||
| 3 | LONGITUDE | Longitude | Li, Xiao-Jun | Geocode | ||
| 4 | LATITUDE | Latitude | Li, Xiao-Jun | Geocode | ||
| 5 | Depth, description | Depth desc | Li, Xiao-Jun | Sampling Depth | ||
| 6 | Temperature, water | Temp | °C | Li, Xiao-Jun | CTD probe (SBE 38) | |
| 7 | Salinity | Sal | Li, Xiao-Jun | CTD probe (SBE 38) | ||
| 8 | Chlorophyll a | Chl a | µg/l | Li, Xiao-Jun | Fluorescence spectrophotometer (Hitachi F-4500) | |
| 9 | Carbon, organic, dissolved | DOC | mg/l | Li, Xiao-Jun | Non-dispersive infrared gas analyzer (Shimadzu TOC-142 VCPH, Shimadzu Co., Japan) | |
| 10 | Nitrite | [NO2]- | µmol/l | Li, Xiao-Jun | SEAL AA3 autoanalyzer | |
| 11 | Nitrate | [NO3]- | µg/l | Li, Xiao-Jun | SEAL AA3 autoanalyzer | |
| 12 | Ammonium | [NH4]+ | µmol/l | Li, Xiao-Jun | SEAL AA3 autoanalyzer | |
| 13 | Phosphate | [PO4]3- | µmol/l | Li, Xiao-Jun | SEAL AA3 autoanalyzer | |
| 14 | Silicate | Si(OH)4 | µmol/l | Li, Xiao-Jun | SEAL AA3 autoanalyzer | |
| 15 | Ethane | C2H6 | pmol/l | Li, Xiao-Jun | Gas chromatography-mass spectrometer (GC-MS, Agilent 7890N/5973N, USA) | |
| 16 | Ethene | C2H4 | pmol/l | Li, Xiao-Jun | Gas chromatography-mass spectrometer (GC-MS, Agilent 7890N/5973N, USA) | |
| 17 | Propane | C3H8 | pmol/l | Li, Xiao-Jun | Gas chromatography-mass spectrometer (GC-MS, Agilent 7890N/5973N, USA) | |
| 18 | Propene | C3H6 | pmol/l | Li, Xiao-Jun | Gas chromatography-mass spectrometer (GC-MS, Agilent 7890N/5973N, USA) | |
| 19 | Isoprene | C5H8 | pmol/l | Li, Xiao-Jun | Gas chromatography-mass spectrometer (GC-MS, Agilent 7890N/5973N, USA) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4886 data points
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