Data for: On the role of density-driven dissolution of CO2 in karstification

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Class, Holger; Bürkle, Pascal; Trötschler, Oliver; Zimmer, Martin; Strauch, Bettina, 2021, "Data for: On the role of density-driven dissolution of CO2 in karstification", https://doi.org/10.18419/darus-2040, DaRUS, V1, UNF:6:MLmw+UrdmPEjg9Db5HtPDw== [fileUNF]

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Description	Summary: Data of the "density-driven dissolution of CO2 in karst water" column experiment. A laboratory column was filled with tapwater (water level 5,55 m) and exposed it to an elevated gaseous CO2-concentration, roughly 50 times the current atmospheric concentration (20000 +/- 5000 ppm). After stripping the water with ambient air, it was initially in equilibrium with atmospheric conditions. Then, the concentration of dissolved CO2 was measured over a time period of 60 days in two different depths in the column. Measuring points are in the column air, 1 m below water level and 0,15 m above ground. CO2-air concentration was provided using an air-membrane pump (KNF N86 KTE) and a 100 l TEDLAR bag (for more detailed information look into the related publication Class 2021 et al.) Raw Data: Raw data provided by GMP252 CO2 sensor probes, data accessed from ADL-MX Advanced Datalogger via ADL-C software Sensor positions: CO2_10: column air CO2_20: 1 m below water surface CO2_40: 0.15 m above ground/5.40 m below water surface Processed Data: Processed Data calculated after formula in the related publication Class 2021 et al. MC: manufacturer correction OC: own correction Sherwood: Calculations for Sherwood number. The density was calculated by an approach of Garcia 2001 For further information look into the related publication Class 2021 et al. Buerkle2021a: The dumux-pub module used to simulate the different scenarios in the related publication Class 2021 et al.
Subject	Earth and Environmental Sciences; Engineering
Keyword	Density Driven Dissolution, Karst, CO2, Carbon Dioxide, Carbon Dioxide in Aqueous Solution
Related Publication	Holger Class, Pascal Bürkle, Tim Sauerborn, Oliver Trötschler, Bettina Strauch, Martin Zimmer: On the role of density-driven dissolution of CO2 in phreatic karst systems. In: Water Resources Research (submitted) doi: 10.1002/essoar.10507661.1
Data Generation	Simulation; Experiment
License/Data Use Agreement	Custom Dataset Terms

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	1 to 5 of 5 Files	Original Format Archival Format (.tab)
	buerkle2021a-master.tar TAR Archive - 4.9 MB Published Dec 2, 2021 12 Downloads MD5: 006176534bf52b3bf1764b24acd16062 Dumux-pub-module mirror of https://git.iws.uni-stuttgart.de/dumux-pub/buerkle2021a Commit: 16eaaa4b	Access File File Access Public Download Options TAR Archive Download Metadata Data File Citation EndNote XML RIS BibTeX
	processed_data.tab Tabular Data - 9.7 MB Published Dec 2, 2021 39 Downloads 6 Variables, 86401 Observations UNF:6:0x2Dq6tnxi0MxEVAm+ysvg== Detailled processing explained in related publication, Unit of CO2 values: mol CO2/mol H2O	Preview "processed_data.tab" Access File File Access Public Download Options Comma Separated Values (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX
	processing_script.ipynb Jupyter Notebook - 28.5 KB Published Dec 2, 2021 29 Downloads MD5: 78b21cdc3655f6b9464e1025903a65d0 Processing script to reproduce the processed data from the raw data via Jupyter Notebook	Access File File Access Public Download Options Jupyter Notebook Download Metadata Data File Citation EndNote XML RIS BibTeX
	raw_data.tab Tabular Data - 4.1 MB Published Dec 2, 2021 22 Downloads 8 Variables, 86401 Observations UNF:6:jDoGRsS1EyUrWy+IwM3wZQ== Raw data of the "density-driven dissolution of CO2 in karst water" column 60 days experiment	Preview "raw_data.tab" Access File File Access Public Download Options Comma Separated Values (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX
	sherwood.xlsx MS Excel Spreadsheet - 35.8 KB Published Dec 2, 2021 23 Downloads MD5: e427555a1305bedeb7d70cf6f69f0947 Calculated sherwood number and required data to calculate sherwood number. Sim1: Simulation with measured atmospheric CO2 concentration. Sim2: Simulation with (assumed) constant atmospheric CO2 concentration of 20,000 ppm	Access File File Access Public Download Options MS Excel Spreadsheet Download Metadata Data File Citation EndNote XML RIS BibTeX

Citation Metadata

Persistent Identifier	doi:10.18419/darus-2040
Publication Date	2021-12-02
Title	Data for: On the role of density-driven dissolution of CO2 in karstification
Author	Class, Holger (University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS)) - ORCID: 0000-0002-4476-8017 Bürkle, Pascal (University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS)) - ORCID: 0000-0003-0633-4418 Trötschler, Oliver (University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS)) - ORCID: 0000-0002-2362-1956 Zimmer, Martin (GFZ German Research Centre for Geosciences Potsdam) - ORCID: 0000-0002-8848-2336 Strauch, Bettina (GFZ German Research Centre for Geosciences Potsdam) - ORCID: 0000-0002-3648-1032
Point of Contact	Use email button above to contact. Bürkle, Pascal (University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS)) Class, Holger (University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS))
Description	Summary: Data of the "density-driven dissolution of CO2 in karst water" column experiment. A laboratory column was filled with tapwater (water level 5,55 m) and exposed it to an elevated gaseous CO2-concentration, roughly 50 times the current atmospheric concentration (20000 +/- 5000 ppm). After stripping the water with ambient air, it was initially in equilibrium with atmospheric conditions. Then, the concentration of dissolved CO2 was measured over a time period of 60 days in two different depths in the column. Measuring points are in the column air, 1 m below water level and 0,15 m above ground. CO2-air concentration was provided using an air-membrane pump (KNF N86 KTE) and a 100 l TEDLAR bag (for more detailed information look into the related publication Class 2021 et al.) Raw Data: Raw data provided by GMP252 CO2 sensor probes, data accessed from ADL-MX Advanced Datalogger via ADL-C software Sensor positions: CO2_10: column air CO2_20: 1 m below water surface CO2_40: 0.15 m above ground/5.40 m below water surface Processed Data: Processed Data calculated after formula in the related publication Class 2021 et al. MC: manufacturer correction OC: own correction Sherwood: Calculations for Sherwood number. The density was calculated by an approach of Garcia 2001 For further information look into the related publication Class 2021 et al. Buerkle2021a: The dumux-pub module used to simulate the different scenarios in the related publication Class 2021 et al.
Subject	Earth and Environmental Sciences; Engineering
Keyword	Density Driven Dissolution Karst http://id.loc.gov/authorities/subjects/sh85071670 (LCSH) CO2 http://id.loc.gov/authorities/subjects/sh85020108 (LCSH) Carbon Dioxide http://id.loc.gov/authorities/subjects/sh85020108 (LCSH) Carbon Dioxide in Aqueous Solution
Related Publication	Holger Class, Pascal Bürkle, Tim Sauerborn, Oliver Trötschler, Bettina Strauch, Martin Zimmer: On the role of density-driven dissolution of CO2 in phreatic karst systems. In: Water Resources Research (submitted) doi: 10.1002/essoar.10507661.1 https://doi.org/10.1002/essoar.10507661.1
Language	English
Production Location	University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems (IWS)
Funding Information	University of Stuttgart: Budget funds
Project	C04 - Pore-scale and REV-scale approaches to biological and chemical pore-space alteration in porous media
Depositor	Bürkle, Pascal
Deposit Date	2021-06-23
Time Period	Start Date: 2021-03-12 ; End Date: 2021-05-11
Did it work?	Yes

Process Metadata

Software	ADL-C Version: 1.7 Python Version: 3.8.5 (https://www.python.org/) PSF pandas Version: 1.1.3 (https://pandas.pydata.org/) BSD-3-Clause doi: 10.5281/zenodo.4067057 (McKinney, W. (2010). Data Structures for Statistical Computing in Python. Proceedings of the 9th Python in Science Conference. (Austin, Texas), pp. 56–61.) NumPy Version: 1.19.2 (https://www.numpy.org) BSD-3-Clause (Harris, C. R., Millman, K. J., van der Walt, S. J., Gommers, R., Virtanen, P., Cournapeau, D., Wieser, E., Taylor, J., Berg, S., Smith, N. J., Kern, R., Picus, M., Hoyer, S., van Kerkwijk, M. H., Brett, M., Haldane, A., Fernández del Río, J., Wiebe, M., Peterson, P., Gérard-Marchant, P., Sheppard, K., Reddy, T., Weckesser, W., Abbasi, H., Gohlke, C., Oliphant, T. E. (2020). Array programming with NumPy. Nature: 585, 357–362, doi: 10.1038/s41586-020-2649-2.)
Instruments	Vaisala GMP252 (CO₂ sensor for ppm-level measurements) , Software: ADL-C
Processing Steps	Postprocessing ; Software: Python ; Input: raw_data ; Output: processed_data

Engineering Metadata

Data Generation

Simulation; Experiment

Measured Variables

Time (Time) [s] : 0 : 5184000
Atmospheric pressure in column air (prs_01) [hPa] : 942.79 : 973.46
CO2 concentration in column air (CO2_10) [ppm] : 417 : 28099
Atmospheric temperature (temp_10) [°C] : 15.0 : 25.9
CO2 concentration in 1 m water depth (CO2_10) [ppm] : 494 : 6330
Temperature in 1 m water depth [°C] : 9.3 : 9.8
CO2 concentration in 5.40 m water depth (CO2_40) [ppm] : 458 : 6257
Temperature in 5.40 m water depth (temp_40) [°C] : 9.2 : 9.8
MC: aqueous CO2 concentration at the watersurface (MC_CO2_10) [mol CO2/mol H2O] : 4.08e-07 : 2.75e-05
MC: aqueous CO2 concentration in 1 m water depth (MC_CO2_20) [mol CO2/mol H2O] : 4.84e-07 : 6.20e-06
MC: aqueous CO2 concentration in 5.40 m water depth (MC_CO2_40) [mol CO2/mol H2O] : 4.49e-07 : 6.13e-07
OC: aqueous CO2 concentration in 1 m water depth (OC_CO2_20) [mol CO2/mol H20] : 4.96e-07 : 6.33e-06
OC: aqueous CO2 concentration in 5.40 m water depth (OC_CO2_40) [mol CO2/mol H20] : 4.51e-07 : 6.14e-06
Time [d] (time [d]) [d] : 0 : 60
Flux Rate (Flux Rate [mol/s]) [mol/s]
Flux Rate (Flux Rate [kg/s]) [kg/s]
Flux Rate per area (Flux Rate per area [kg/sm^2]) [kg/sm^2]
Density of pure water at 10°C (rho_pure_water(10°C)) [kg/m^3]
Density of the solution at the watertable (rho_aq_watertable) [kg/m^3]
Density of the solution in 5.40 waterdepth (rho_aq_5.40_depth) [kg/m^3]
Delta of the density at the watertable and in 5.40 waterdepth (delta_rho) [kg/m^3]
Partial molar volume (V_phi (T)) [m^3/mol]
Molar mass of water (M_h2o) [kg/mol] : 0.018
Molar mass of carbon dioxide (M_co2) [kg/mol] : 0.044
Molar mass of the solution of the solution at the watertable (M_T_watertable) [kg/mol]
Molar mass of the solution in 5.40 waterdepth (MT_5.40_depth) [kg/mol]
Mole fraction of CO2 in vapour phase (x_co2_vapor) [mol CO2/mol H2O]
Mole fraction of CO2 in the liquid phase at the watertable (x_co2_l) [mol CO2/mol H2O]
Mole faction of CO2 in the liquid phase at 5.40 waterdepth (x_CO2_5.40_depth) [mol CO2/mol H2O]
Diffusion coefficient of CO2 (D) [m^2/s] : 2.0E-09
Sherwood number (Sherwood) [-]
Sherwood number of Sim1 (Sherwood Sim1) [-]
Sherwood number of Sim2 (Sherwood Sim2) [-]

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Our Community Norms as well as good scientific practices expect that proper credit is given via citation. Please use the data citation shown on the dataset page.

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DuMuX and the DuMuX-pub module "buerkle2021a" under GNU GPL 3.0
The processing script "processing_script.ipynb"

GNU GPL 3.0

The data files "raw_data", "processed_data" and "sherwood" under CC BY Attribution 4.0

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