ERDDAP > info > bcodmo_dataset_963717_v1

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	[XRD data and results for OAE North Atlantic experiments] - X-ray diffraction (XRD) raw data and Rietveld refinement results for precipitates from shipboard ocean alkalinity enhancement (OAE) experiments in the North Atlantic on R/V Atlantic Explorer cruise AE2320 in September 2023 (OCE-PRF: Towards Quantifying Calcium Carbonate Sediment Dissolution During Marine Diagenesis)		M	background			BCO-DMO	bcodmo_dataset_963717_v1

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	doi	String	10.26008/1912/bco-dmo.963717.1
attribute	NC_GLOBAL	infoUrl	String	https://osprey.bco-dmo.org/dataset/963717
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	license	String	The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	summary	String	To explore mineral formation due to alkalinity addition, we present results from shipboard experiments in which an aqueous solution of NaOH was added to unfiltered seawater collected from the surface ocean in the Sargasso Sea. Alkalinity addition ranged from 500 to 2000 micromoles per kilogram (µmol/kg) and the carbonate chemistry was monitored through time by measuring total alkalinity (TA) and dissolved inorganic carbon (DIC), which were used to calculate Ω. The amount of precipitate and its minerology were determined throughout the experiments. Mineral precipitation took place in all experiments over a timescale of hours to days. The dominant mineralogy of precipitate is aragonite with trace amounts of calcite and brucite. Aragonite crystallite size increases and its micro-strain decreases with time, consistent with Ostwald ripening. This dataset contains raw XRD data as well as XRD results (mineral abundances, crystallite size, strain, and unit cell parameters) determined via Rietveld refinement. The seawater for the experiments was collected near the Bermuda Atlantic Time Series (31.6667 N, 64.1667 W), which is also the same location where the experiments were conducted and filtered to obtain the precipitates, which were analyzed with XRD.
attribute	NC_GLOBAL	title	String	[XRD data and results for OAE North Atlantic experiments] - X-ray diffraction (XRD) raw data and Rietveld refinement results for precipitates from shipboard ocean alkalinity enhancement (OAE) experiments in the North Atlantic on R/V Atlantic Explorer cruise AE2320 in September 2023 (OCE-PRF: Towards Quantifying Calcium Carbonate Sediment Dissolution During Marine Diagenesis)
variable	Experiment_name		String
attribute	Experiment_name	long_name	String	Experiment_name
attribute	Experiment_name	units	String	unitless
variable	Alkalinity_addition		int
attribute	Alkalinity_addition	actual_range	int	500, 2000
attribute	Alkalinity_addition	long_name	String	Alkalinity_addition
attribute	Alkalinity_addition	units	String	micromoles per kilogram (umol/kg)
variable	Sample		String
attribute	Sample	long_name	String	Sample
attribute	Sample	units	String	unitless
variable	Exp_start_day		String
attribute	Exp_start_day	long_name	String	Exp_start_day
attribute	Exp_start_day	units	String	unitless
variable	Exp_start_time		String
attribute	Exp_start_time	long_name	String	Exp_start_time
attribute	Exp_start_time	units	String	unitless
variable	Filtration_start_day		String
attribute	Filtration_start_day	long_name	String	Filtration_start_day
attribute	Filtration_start_day	units	String	unitless
variable	Filtration_time		String
attribute	Filtration_time	long_name	String	Filtration_time
attribute	Filtration_time	units	String	unitless
variable	Filtration_end_day		String
attribute	Filtration_end_day	long_name	String	Filtration_end_day
attribute	Filtration_end_day	units	String	unitless
variable	Filtration_end_time		String
attribute	Filtration_end_time	long_name	String	Filtration_end_time
attribute	Filtration_end_time	units	String	unitless
variable	Duration_till_filtration_started		float
attribute	Duration_till_filtration_started	actual_range	float	0.25, 122.92
attribute	Duration_till_filtration_started	long_name	String	Duration_till_filtration_started
attribute	Duration_till_filtration_started	units	String	hours
variable	Duration_till_filtration_ended		float
attribute	Duration_till_filtration_ended	actual_range	float	0.92, 125.5
attribute	Duration_till_filtration_ended	long_name	String	Duration_till_filtration_ended
attribute	Duration_till_filtration_ended	units	String	hours
variable	Experiment_mean_duration		float
attribute	Experiment_mean_duration	actual_range	float	0.58, 124.21
attribute	Experiment_mean_duration	long_name	String	Experiment_mean_duration
attribute	Experiment_mean_duration	units	String	hours
variable	Filtration_duration		float
attribute	Filtration_duration	actual_range	float	0.23, 2.58
attribute	Filtration_duration	long_name	String	Filtration_duration
attribute	Filtration_duration	units	String	hours
variable	Aragonite		float
attribute	Aragonite	actual_range	float	35.5, 97.27
attribute	Aragonite	long_name	String	Aragonite
attribute	Aragonite	units	String	percent
variable	Calcite		float
attribute	Calcite	actual_range	float	0.08, 1.9
attribute	Calcite	long_name	String	Calcite
attribute	Calcite	units	String	percent
variable	Halite		float
attribute	Halite	actual_range	float	2.25, 62.6
attribute	Halite	long_name	String	Halite
attribute	Halite	units	String	percent
variable	Total		float
attribute	Total	actual_range	float	99.9, 100.0
attribute	Total	long_name	String	Total
attribute	Total	units	String	percent
variable	Aragonite_and_calcite_total		float
attribute	Aragonite_and_calcite_total	actual_range	float	37.4, 97.75
attribute	Aragonite_and_calcite_total	long_name	String	Aragonite_and_calcite_total
attribute	Aragonite_and_calcite_total	units	String	percent
variable	Normalized_aragonite		float
attribute	Normalized_aragonite	actual_range	float	94.92, 99.92
attribute	Normalized_aragonite	long_name	String	Normalized_aragonite
attribute	Normalized_aragonite	units	String	percent
variable	Normalized_calcite		float
attribute	Normalized_calcite	actual_range	float	0.08, 2.0
attribute	Normalized_calcite	long_name	String	Normalized_calcite
attribute	Normalized_calcite	units	String	percent
variable	Aragonite_crystallite_size_L		int
attribute	Aragonite_crystallite_size_L	actual_range	int	61, 126
attribute	Aragonite_crystallite_size_L	long_name	String	Aragonite_crystallite_size_l
attribute	Aragonite_crystallite_size_L	units	String	nanometers (nm)
variable	Crystallite_size_error		int
attribute	Crystallite_size_error	actual_range	int	1, 4
attribute	Crystallite_size_error	long_name	String	Crystallite_size_error
attribute	Crystallite_size_error	units	String	nanometers (nm)
variable	aragonite_strain_L		float
attribute	aragonite_strain_L	actual_range	float	0.019, 0.099
attribute	aragonite_strain_L	long_name	String	Aragonite_strain_l
attribute	aragonite_strain_L	units	String	percent
variable	strain_error		float
attribute	strain_error	actual_range	float	1.0E-4, 0.0089
attribute	strain_error	long_name	String	Strain_error
attribute	strain_error	units	String	percent
variable	Aragonite_unit_cell_a		float
attribute	Aragonite_unit_cell_a	actual_range	float	4.96265, 4.96603
attribute	Aragonite_unit_cell_a	long_name	String	Aragonite_unit_cell_a
attribute	Aragonite_unit_cell_a	units	String	angstroms
variable	Aragonite_unit_cell_b		float
attribute	Aragonite_unit_cell_b	actual_range	float	7.96702, 7.97512
attribute	Aragonite_unit_cell_b	long_name	String	Aragonite_unit_cell_b
attribute	Aragonite_unit_cell_b	units	String	angstroms
variable	Aragonite_unit_cell_c		float
attribute	Aragonite_unit_cell_c	actual_range	float	5.75017, 5.75333
attribute	Aragonite_unit_cell_c	long_name	String	Aragonite_unit_cell_c
attribute	Aragonite_unit_cell_c	units	String	angstroms

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.