ERDDAP > info > bcodmo_dataset_931516_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	[RR2311 NH4 and NO2] - Ammonium (NH4) and Nitrite (NO2) concentrations from R/V Roger Revelle cruise RR2311 in the Eastern Tropical South Pacific from November to December 2023 (Nitrite Oxidation in Oxygen Minimum Zones)		F   I   M	background			BCO-DMO	bcodmo_dataset_931516_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.931516.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-71.10026
attribute	NC_GLOBAL	geospatial_lat_max	double	-13.99992
attribute	NC_GLOBAL	geospatial_lat_min	double	-22.90058
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-71.10026
attribute	NC_GLOBAL	geospatial_lon_min	double	-81.0005
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	3002.359
attribute	NC_GLOBAL	geospatial_vertical_min	double	4.865
attribute	NC_GLOBAL	geospatial_vertical_positive	String	down
attribute	NC_GLOBAL	geospatial_vertical_units	String	m
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/931516
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	Northernmost_Northing	double	-13.99992
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-22.90058
attribute	NC_GLOBAL	summary	String	Water samples were collected as part of a 32-day cruise in the Eastern Tropical South Pacific, aiming to study nitrification in this oxygen minimum region of the ocean. In the Event Log for RR2311, transect stations are designated "T" and process stations are designated "PS". Nutrients were collected on the first cast upon arrival at a process station, and in one case on the last day, of a 2-5 day station occupation. Ammonium concentrations were initially planned to be measured in high-resolution depth profiles at each major process and transect station. However, due to the exceedingly low concentrations detected by the shipboard method, only the data from the first process station were included, with remaining samples frozen for later analysis ashore. Ammonium concentration was measured manually using fluorometric methods (Holmes et al. 1999), with water collected using Niskin bottles. Five ml volumes were analyzed immediately upon retrieval without filtration. High-resolution profiles were also obtained for nitrite measurements at both process and transect stations. Nitrite concentration was determined manually using colorimetric methods (Hansen and Koroleff 1999) on duplicate samples, measured immediately after collection without filtration.
attribute	NC_GLOBAL	time_coverage_end	String	2023-12-18T19:02:23Z
attribute	NC_GLOBAL	time_coverage_start	String	2023-11-21T16:32:41Z
attribute	NC_GLOBAL	title	String	[RR2311 NH4 and NO2] - Ammonium (NH4) and Nitrite (NO2) concentrations from R/V Roger Revelle cruise RR2311 in the Eastern Tropical South Pacific from November to December 2023 (Nitrite Oxidation in Oxygen Minimum Zones)
attribute	NC_GLOBAL	Westernmost_Easting	double	-81.0005
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.700584361E9, 1.702926143E9
attribute	time	axis	String	T
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Ctd_iso_datetime_utc
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	Date_Local		String
attribute	Date_Local	long_name	String	Date_local
attribute	Date_Local	units	String	unitless
variable	latitude		float
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	float	-22.90058, -13.99992
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Ctd_latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
variable	Lat_Deg		int
attribute	Lat_Deg	actual_range	int	-22, -14
attribute	Lat_Deg	long_name	String	Lat_deg
attribute	Lat_Deg	units	String	degrees
variable	Lat_Min		float
attribute	Lat_Min	actual_range	float	0.0, 54.02
attribute	Lat_Min	long_name	String	Lat_min
attribute	Lat_Min	units	String	minutes
variable	longitude		float
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	float	-81.0005, -71.10026
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Ctd_longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	Long_Deg		int
attribute	Long_Deg	actual_range	int	-81, -71
attribute	Long_Deg	long_name	String	Long_deg
attribute	Long_Deg	units	String	degrees
variable	Long_Min		float
attribute	Long_Min	actual_range	float	0.0, 59.956
attribute	Long_Min	long_name	String	Long_min
attribute	Long_Min	units	String	minutes
variable	Station		String
attribute	Station	long_name	String	Station
attribute	Station	units	String	unitless
variable	Cast_Number		int
attribute	Cast_Number	actual_range	int	1, 109
attribute	Cast_Number	long_name	String	Cast_number
attribute	Cast_Number	units	String	unitless
variable	Niskin_Bottle		int
attribute	Niskin_Bottle	actual_range	int	1, 24
attribute	Niskin_Bottle	long_name	String	Niskin_bottle
attribute	Niskin_Bottle	units	String	unitless
variable	depth		float
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	actual_range	float	4.865, 3002.359
attribute	depth	axis	String	Z
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Ctd_depth
attribute	depth	positive	String	down
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
variable	Target_Depth		int
attribute	Target_Depth	actual_range	int	3, 3000
attribute	Target_Depth	long_name	String	Target_depth
attribute	Target_Depth	units	String	m
variable	Nitrite		float
attribute	Nitrite	actual_range	float	-0.34, 1500.0
attribute	Nitrite	long_name	String	Nitrite
attribute	Nitrite	units	String	micromolar (uM)
variable	NH4		float
attribute	NH4	actual_range	float	-0.353, 0.713
attribute	NH4	long_name	String	Nh4
attribute	NH4	units	String	micromolar (uM)

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.