Leon-Palmero, Elizabeth; Morales-Baquero, Rafael; Reche, Isabel (2025): High-Frequency 24-Hour Measurements of CO₂, N₂O, and diffusive and ebullitive CH₄ fluxes in two Mediterranean reservoirs [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.987124
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Published: 2025-11-04 • DOI registered: 2025-12-03
Abstract:
This dataset contains measurements of CO2, N2O, and diffusive and ebullitive CH4 fluxes from 13 to 24 times along the 24-hour sampling using a high-resolution laser-based Cavity Ring-Down Spectrometer (CRDS PICARRO G2508) coupled to a floating chamber. We performed three 24-hour sampling campaigns in two eutrophic reservoirs (Cubillas and Iznájar) located in southeastern Spain during the stratification period. We measured the GHG fluxes in Cubillas reservoir in 2016 (from July 14th to July 15th) and in 2018 (from June 21st to June 22nd), and in Iznájar reservoir in 2018 (July 8th to July 9th). Hourly measurements of air temperature, surface water temperature, barometric pressure (HANNA HI 9828), and wind speed (MASTECH MS6252A) recorded at the beginning of each flux measurement are also provided.
Keyword(s):
Supplement to:
Leon-Palmero, Elizabeth; Morales-Baquero, Rafael; Reche, Isabel (2025): Higher emissions of carbon dioxide, nitrous oxide, and methane during the daytime in two reservoirs. Biogeochemistry, 168(6), 99, https://doi.org/10.1007/s10533-025-01283-y
References:
Hoffmann, Mathias; Schulz-Hanke, Maximilian; Garcia Alba, Juana; Jurisch, Nicole; Hagemann, Ulrike; Sachs, Torsten; Sommer, Michael; Augustin, Jürgen (2017): A simple calculation algorithm to separate high-resolution CH 4 flux measurements into ebullition- and diffusion-derived components. Atmospheric Measurement Techniques, 10(1), 109-118, https://doi.org/10.5194/amt-10-109-2017
Zhao, Yan; Sherman, Bradford; Ford, Phillip; Demarty, Maud; DelSontro, Tonya; Harby, Atle; Tremblay, Alain; Øverjordet, Ida Beathe; Zhao, Xinfeng; Hansen, Bjørn Henrik; Wu, Bingfang (2015): A comparison of methods for the measurement of CO 2 and CH 4 emissions from surface water reservoirs: Results from an international workshop held at Three Gorges Dam, June 2012. Limnology and Oceanography-Methods, 13(1), 15-29, https://doi.org/10.1002/lom3.10003
Coverage:
Median Latitude: 37.272131 * Median Longitude: -3.929672 * South-bound Latitude: 37.260000 * West-bound Longitude: -4.330000 * North-bound Latitude: 37.280000 * East-bound Longitude: -3.670000
Date/Time Start: 2016-07-14T11:21:33 * Date/Time End: 2018-07-09T12:38:18
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Leon-Palmero, Elizabeth | Reservoir | ||
| 2 | LATITUDE | Latitude | Leon-Palmero, Elizabeth | Geocode | ||
| 3 | LONGITUDE | Longitude | Leon-Palmero, Elizabeth | Geocode | ||
| 4 | DEPTH, water | Depth water | m | Leon-Palmero, Elizabeth | Geocode | |
| 5 | DATE/TIME | Date/Time | Leon-Palmero, Elizabeth | Geocode | ||
| 6 | Reservoir capacity | Reservoir cap | hm3 | Leon-Palmero, Elizabeth | Maximum; Obtained from the open database of The Confederación Hidrográfica del Guadalquivir, https://www.chguadalquivir.es/inicio | |
| 7 | Reservoir volume | Reservoir vol | hm3 | Leon-Palmero, Elizabeth | Sampling day volume; Obtained from the open database of The Confederación Hidrográfica del Guadalquivir, https://www.chguadalquivir.es/inicio | |
| 8 | Wind speed | ff | m/s | Leon-Palmero, Elizabeth | Digital anemometer, MASTECH, MS6252A | |
| 9 | Temperature, air | TTT | °C | Leon-Palmero, Elizabeth | Multiparameter probe (HI9828, Hanna Instruments, Woonsocket, Rhode Island) | |
| 10 | Sea surface temperature | SST | °C | Leon-Palmero, Elizabeth | Multiparameter probe (HI9829, Hanna Instruments) | |
| 11 | Carbon dioxide, flux | CO2 flux | µmol/m2/s | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Calculation based on Zhao et al. (2015) |
| 12 | Carbon dioxide, flux, standard error | CO2 flux std e | ± | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Calculation based on Zhao et al. (2015) |
| 13 | Nitrous oxide, flux | N2O flux | nmol/m2/s | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Calculation based on Zhao et al. (2015) |
| 14 | Nitrous oxide, flux, standard error | N2O flux std e | ± | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Calculation based on Zhao et al. (2015) |
| 15 | Methane, flux | CH4 flux | nmol/m2/s | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Total; Calculation based on Zhao et al. (2015) |
| 16 | Methane, flux, standard error | CH4 flux std e | ± | Leon-Palmero, Elizabeth | Gas analyzer (Picarro G2508 ) | Total; Calculation based on Zhao et al. (2015) |
| 17 | Methane, flux | CH4 flux | nmol/m2/s | Leon-Palmero, Elizabeth | Algorithm adapted from Hoffmann et al. (2017) | Diffusive |
| 18 | Methane, flux | CH4 flux | nmol/m2/s | Leon-Palmero, Elizabeth | Algorithm adapted from Hoffmann et al. (2017) | Ebullitive |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
793 data points