Haque, Md Morshedul; Begum, Most Shirina; Nayna, Omme K; Tareq, Shafi M; Park, Ji-Hyung (2021): Seasonal shifts in diel pCO2 variations investigated by high-frequency sensor measurements in the lower Ganges River in 2018-2019 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.931791
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Published: 2021-05-25 • DOI registered: 2022-01-03
Abstract:
High-frequency sensor measurement was combined with dissolved organic matter (DOM) characterization to investigate diel and seasonal variations in the partial pressure of CO2 (pCO2) in the lower Ganges, near Hardinge Bridge (24°03'57.04 N, 89°01'42.85 E). Continuous measurement of pCO2 was conducted every month for 12–13 hours from May 2018 to April 2019, with an extended deployment of 48 hours continuous monitoring in March 2019. Water samples were also collected monthly to measure biodegradable dissolved organic carbon and optical properties of DOM including three fluorescent DOM components. CO2 flux and apparent oxygen utilization were calculated based on CO2 and dissolved oxygen measurements.
Related to:
Haque, Md Morshedul; Begum, Most Shirina; Nayna, Omme K; Tareq, Shafi M; Park, Ji-Hyung (2022): Seasonal shifts in diurnal variations of p CO 2 and O 2 in the lower Ganges River. Limnology and Oceanography Letters, 7(3), 191-201, https://doi.org/10.1002/lol2.10246
Funding:
Asia-Pacific Network for Global Change Research (APN), grant/award no. CRRP2016-01MY-Park: Water Pollution Impacts on Carbon Export and Greenhouse Gas Evasion from Asian River Systems
Coverage:
Latitude: 24.065844 * Longitude: 89.028569
Date/Time Start: 2018-05-12T00:00:00 * Date/Time End: 2019-04-11T18:44:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Park, Ji-Hyung | Geocode | ||
| 2 | Carbon dioxide (water), partial pressure, at equilibrator temperature (wet air) | pCO2water_equ_wet | µatm | Park, Ji-Hyung | CO2 sensor (CARBOCAP®, GMT222, Vaisala) | Time series data by CO2 sensor |
| 3 | Partial pressure of carbon dioxide (ambient atmosphere) | pCO2air | µatm | Park, Ji-Hyung | CO2 sensor (CARBOCAP®, GMT222, Vaisala) | Time series data by CO2 sensor |
| 4 | Carbon dioxide, flux | CO2 flux | mmol/m2/day | Park, Ji-Hyung | Calculated from pCO2 (Raymond et al., 2012) | Time series data |
| 5 | Temperature, water | Temp | °C | Park, Ji-Hyung | Multi-Parameter Water Quality Sonde, YSI 6920 V2 | Time series data |
| 6 | pH | pH | Park, Ji-Hyung | Multi-Parameter Water Quality Sonde, YSI 6920 V2 | Time series data | |
| 7 | Oxygen, dissolved | DO | mg/l | Park, Ji-Hyung | Multi-Parameter Water Quality Sonde, YSI 6920 V2 | Time series data |
| 8 | Oxygen, departure | ΔO2 | µmol/l | Park, Ji-Hyung | Calculated from dissolved oxygen (Vachon et al., 2020) | Time series data |
| 9 | Carbon dioxide (water), partial pressure, at equilibrator temperature (wet air) | pCO2water_equ_wet | µatm | Park, Ji-Hyung | Gas chromatography on an Agilent Technologies 7890A GC | Sample collected by manual headspace equilibrium |
| 10 | Partial pressure of carbon dioxide (ambient atmosphere) | pCO2air | µatm | Park, Ji-Hyung | Gas chromatography on an Agilent Technologies 7890A GC | Sample collected from ambient air |
| 11 | δ13C, carbon dioxide, dissolved | δ13C CO2 | ‰ PDB | Park, Ji-Hyung | Sample collected by manual headspace equilibrium | |
| 12 | Carbon, organic, dissolved | DOC | mg/l | Park, Ji-Hyung | Shimadzu TOC-VCPH total organic carbon analyzer | |
| 13 | Carbon, organic, dissolved, biodegradable | BDOC | mg/l | Park, Ji-Hyung | Calculated from change in dissolved organic carbon concentration | 5-day laboratory incubation in Dark; Begum et al., 2019; Servais et al., 1987 |
| 14 | Carbon, organic, dissolved, biodegradable | BDOC | % | Park, Ji-Hyung | Calculated from change in dissolved organic carbon concentration | 5-day laboratory incubation in Dark; Begum et al., 2019; Servais et al., 1987 |
| 15 | Specific ultraviolet absorbance normalized to DOC, 254 nm, per mass carbon | SUVA254 | l/mg/m | Park, Ji-Hyung | Spectrophotometer UV/VIS (Agilent 8453) | DOC Normalized; Weishaar et al., 2003 |
| 16 | Humification index | HIX | Park, Ji-Hyung | Zsolnay et al., 1999 | ||
| 17 | Fluorescence index | FI | Park, Ji-Hyung | McKnight et al., 2001 | ||
| 18 | Biological index | BIX | Park, Ji-Hyung | Huguet et al., 2009 | ||
| 19 | Fluorescence, dissolved organic matter | fDOM | % | Park, Ji-Hyung | Humic like component; ex/em 350/460 nm | |
| 20 | Fluorescence, dissolved organic matter | fDOM | % | Park, Ji-Hyung | Microbial-humic like component; ex/em 305/400 nm | |
| 21 | Fluorescence, dissolved organic matter | fDOM | % | Park, Ji-Hyung | Protein like component; ex/em 275/345 nm |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
70121 data points
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