ERDDAP > info > CruiseCTDProfiles

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
	set	data	graph		files	Conductivity Temperature Depth (CTD) sensor profile data binned by depth from PAL LTER annual cruises, 1991, 2017 (ongoing).		F   I   M	background			National Science ...	CruiseCTDProfiles

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	_NCProperties	String	version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6
attribute	NC_GLOBAL	acknowledgement	String	Funding and support provided by the National Science Foundation
attribute	NC_GLOBAL	cdm_data_type	String	TrajectoryProfile
attribute	NC_GLOBAL	cdm_profile_variables	String	event,time,latitude,longitude
attribute	NC_GLOBAL	cdm_trajectory_variables	String	study_name
attribute	NC_GLOBAL	comment	String	The Palmer, Antarctica, Long-Term Ecological Research project is a member site of the Long-Term Ecological Research program, a network of sites investigating diverse biomes. A team of researchers seeks to understand the structure and function of the Western Antarctic Peninsula's marine and terrestrial ecosystems in the context of seasonal-to-interannual atmospheric and sea ice dynamics, as well as long-term climate change. The PAL measurement system (or grid) is designed to study marine and terrestrial food webs consisting principally of diatom primary producers, the dominant herbivore Antarctic krill, and the apex predator Adelie penguin. An attenuated microbial food web is also a focus. PAL studies these ecosystems annually over a regional scale grid of oceanographic stations and seasonally at Palmer Station. \n\nPalmer Station is located on Anvers Island west of the Antarctic Peninula. The peninsula runs perpendicular to a strong climatic gradient between the cold, dry continental regime to the south, characteristic of the Antarctic interior, and the warm, moist, maritime regime to the north. North-south shifts in the gradient give rise to large environmental variability to climate change. Sea ice extent and variability affects ecosystem changes at all trophic levels. In addition to the long-term field and research activities, information management, graduate student training, education and outreach are an integral part of the program.
attribute	NC_GLOBAL	contributor_role_vocabulary	String	https://vocab.nerc.ac.uk/collection/G04/current/
attribute	NC_GLOBAL	Conventions	String	CF-1.8, ACDD-1.3, COARDS
attribute	NC_GLOBAL	creator_country	String	USA
attribute	NC_GLOBAL	creator_email	String	kerfoot at marine.rutgers.edu
attribute	NC_GLOBAL	creator_institution	String	Rutgers University
attribute	NC_GLOBAL	creator_name	String	John Kerfoot
attribute	NC_GLOBAL	creator_sector	String	academic
attribute	NC_GLOBAL	creator_type	String	person
attribute	NC_GLOBAL	creator_url	String	https://rucool.marine.rutgers.edu
attribute	NC_GLOBAL	datazoo_datatable_id	String	273
attribute	NC_GLOBAL	datazoo_datatable_label	String	CTD Downcast Data (Cruise)
attribute	NC_GLOBAL	date_created	String	2021-03-18T21:18:00Z
attribute	NC_GLOBAL	date_issued	String	2021-03-18T21:18:00Z
attribute	NC_GLOBAL	defaultDataQuery	String	null
attribute	NC_GLOBAL	defaultGraphQuery	String	longitude,latitude&.draw=markers&.marker=6%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff&.yRange=%7C0%7Ctrue%7C
attribute	NC_GLOBAL	Easternmost_Easting	double	-60.04
attribute	NC_GLOBAL	featureType	String	TrajectoryProfile
attribute	NC_GLOBAL	geospatial_bounds_crs	String	EPSG:4326
attribute	NC_GLOBAL	geospatial_bounds_vertical_crs	String	EPSG:5831
attribute	NC_GLOBAL	geospatial_lat_max	double	-58.248
attribute	NC_GLOBAL	geospatial_lat_min	double	-70.088
attribute	NC_GLOBAL	geospatial_lat_resolution	String	0.00001 degree
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-60.04
attribute	NC_GLOBAL	geospatial_lon_min	double	-80.0
attribute	NC_GLOBAL	geospatial_lon_resolution	String	0.00001 degree
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	3653.09
attribute	NC_GLOBAL	geospatial_vertical_min	double	0.0
attribute	NC_GLOBAL	geospatial_vertical_positive	String	down
attribute	NC_GLOBAL	geospatial_vertical_units	String	m
attribute	NC_GLOBAL	history	String	local files
attribute	NC_GLOBAL	infoUrl	String	https://pal.lternet.edu/
attribute	NC_GLOBAL	institution	String	National Science Foundation
attribute	NC_GLOBAL	instrument_vocabulary	String	NASA/GCMD Instrument Keywords Version 8.5
attribute	NC_GLOBAL	keywords	String	annual, available, beam, binned, chemistry, chlorophyll, chlorophyll_a, col_5348, color, concentration, conductivity, cruise, cruises, ctd, data, datetime, density, depth, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Density, Earth Science > Oceans > Salinity/Density > Salinity, event, fluorescence, grid, grid_line, grid_station, identifier, index, latitude, line, longitude, lter, mass, mass_concentration_of_chlorophyll_a_in_sea_water, name, number, ocean, ocean color, oceanography, oceans, ongoing, optical, optical properties, pal, par, photosynthetically, physical, physical oceanography, practical, pressure, profile, properties, radiation, rutgers, salinity, science, sea, sea_water_practical_salinity, sea_water_pressure, sea_water_sigma_t, sea_water_temperature, seawater, sensor, sigma, sigma-theta, sigmat, sonde, station, study_name, temperature, theta, time, transmission, university, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the "Data User") is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.
attribute	NC_GLOBAL	license_link	String	https://lternet.edu/data-access-policy/
attribute	NC_GLOBAL	naming_authority	String	edu.rutgers.rucool
attribute	NC_GLOBAL	Northernmost_Northing	double	-58.248
attribute	NC_GLOBAL	platform_vocabulary	String	NASA/GCMD Platforms Keywords Version 8.5
attribute	NC_GLOBAL	product_version	String	1.0
attribute	NC_GLOBAL	program	String	LTER
attribute	NC_GLOBAL	project	String	Palmer LTER
attribute	NC_GLOBAL	publisher_country	String	USA
attribute	NC_GLOBAL	publisher_email	String	kerfoot at marine.rutgers.edu
attribute	NC_GLOBAL	publisher_institution	String	Rutgers University
attribute	NC_GLOBAL	publisher_name	String	John Kerfoot
attribute	NC_GLOBAL	publisher_type	String	person
attribute	NC_GLOBAL	publisher_url	String	https://rucool.marine.rutgers.edu
attribute	NC_GLOBAL	references	String	https://pal.lternet.edu/
attribute	NC_GLOBAL	sea_name	String	Southern Ocean
attribute	NC_GLOBAL	source	String	local files
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-70.088
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v77
attribute	NC_GLOBAL	subsetVariables	String	study_name,grid_line,grid_station
attribute	NC_GLOBAL	summary	String	Conductivity Temperature Depth (CTD) sensor profile data binned by depth from PAL LTER annual cruises, 1991 - 2017 (ongoing). Since 1991 (and ongoing), the PAL LTER program has deployed a SeaBird 911+ CTD mounted on a 24-bottle rosette during annual (Austral Summer) cruises plus a few supplemental cruises at other times of the year. An equal area grid oriented parallel to the average coast provides the basis for sampling, as well as specific process studies and on-the-fly scientific needs. The CTD-rosette is lowered into the ocean (usually to just above the sea-floor) using the ship's conductive-wire winch. Data is collected and displayed real-time to ensure quality and make decisions about where to collect seawater with the bottles. Bottle data is typically collected extensively in the seasaonal mixed layer and pycnocline, plus at Tmin, in the permament pycnolcine and at Tmax and Smax, as well as near the bottom. Bottle data allows measurement adn calculation of additional variables and helps ensure quality data collected via sensors. Sensors include: Pressure, Conductivity (for Salinity), Temperature, Oxygen, Transmissometer, Flourometer, Photosynthetically Available Radiation (PAR/Irrandiance). Additional Bottle Data Variables include: Phosphate, Silicate, Nitrite, Nitrate, Ammonium. After each cruise, Temperature, Conductivity and Oxygen sensors are calibrated and post-crusie processing is applied, making use of pre- and post- cruise calibrations as well as SeaBird software and algorithms for getting the best quality data. Each profile is then inspected for any issues and if needed, suitable corrections are made such as using secondary sensors (temperature, conductivity and oxygen all currently measured in duplicate), using the upcast, or flagging the data as bad.
attribute	NC_GLOBAL	time_coverage_end	String	2017-02-02T08:16:00Z
attribute	NC_GLOBAL	time_coverage_start	String	1991-11-07T00:36:00Z
attribute	NC_GLOBAL	title	String	Conductivity Temperature Depth (CTD) sensor profile data binned by depth from PAL LTER annual cruises, 1991, 2017 (ongoing).
attribute	NC_GLOBAL	Westernmost_Easting	double	-80.0
variable	study_name		String
attribute	study_name	cf_role	String	trajectory_id
attribute	study_name	column_name	String	studyName
attribute	study_name	comment	String	Cruise name
attribute	study_name	ioos_category	String	Identifier
attribute	study_name	long_name	String	Cruise Name
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	6.8947416E8, 1.48602336E9
attribute	time	axis	String	T
attribute	time	calendar	String	proleptic_gregorian
attribute	time	column_name	String	col_5336
attribute	time	comment	String	Date and time (UTC)
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Datetime UTC
attribute	time	lter_mscale	String	dateTime
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	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	9.969209968386869E36
attribute	latitude	actual_range	double	-70.088, -58.248
attribute	latitude	axis	String	Y
attribute	latitude	colorBarMaximum	double	90.0
attribute	latitude	colorBarMinimum	double	-90.0
attribute	latitude	column_name	String	col_5340
attribute	latitude	comment	String	Latitude for CTD cast location
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	lter_mscale	String	ratio
attribute	latitude	lter_num_type	String	real
attribute	latitude	lter_units	String	º
attribute	latitude	lter_units_string	String	degree
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
attribute	latitude	units_conventions	String	EML-2.0.1,EML-2.1.0,EML-LTER
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	9.969209968386869E36
attribute	longitude	actual_range	double	-80.0, -60.04
attribute	longitude	axis	String	X
attribute	longitude	colorBarMaximum	double	180.0
attribute	longitude	colorBarMinimum	double	-180.0
attribute	longitude	column_name	String	col_5341
attribute	longitude	comment	String	Longitude for CTD cast location
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	lter_mscale	String	ratio
attribute	longitude	lter_num_type	String	real
attribute	longitude	lter_units	String	º
attribute	longitude	lter_units_string	String	degree
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
attribute	longitude	units_conventions	String	EML-2.0.1,EML-2.1.0,EML-LTER
variable	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	-9.969209968386869E36
attribute	depth	actual_range	double	0.0, 3653.09
attribute	depth	axis	String	Z
attribute	depth	colorBarMaximum	double	0.0
attribute	depth	colorBarMinimum	double	-4000.0
attribute	depth	colorBarPalette	String	TopographyDepth
attribute	depth	column_name	String	col_5346
attribute	depth	comment	String	Depth
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Depth
attribute	depth	lter_mscale	String	ratio
attribute	depth	lter_num_type	String	real
attribute	depth	lter_units	String	m
attribute	depth	lter_units_string	String	meter
attribute	depth	positive	String	down
attribute	depth	reference_datum	String	sea-surface
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
attribute	depth	units_conventions	String	AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER
variable	pressure		double
attribute	pressure	_FillValue	double	9.969209968386869E36
attribute	pressure	actual_range	double	0.0, 3722.0
attribute	pressure	colorBarMaximum	double	4000.0
attribute	pressure	colorBarMinimum	double	0.0
attribute	pressure	column_name	String	col_5342
attribute	pressure	comment	String	Pressure
attribute	pressure	ioos_category	String	Pressure
attribute	pressure	long_name	String	Pressure
attribute	pressure	lter_mscale	String	ratio
attribute	pressure	lter_num_type	String	real
attribute	pressure	lter_units	String	dbar
attribute	pressure	lter_units_string	String	decibar
attribute	pressure	positive	String	down
attribute	pressure	reference_datum	String	sea-surface
attribute	pressure	standard_name	String	sea_water_pressure
attribute	pressure	units	String	dbar
attribute	pressure	units_conventions	String	PAL-LTER
variable	temperature		double
attribute	temperature	_FillValue	double	9.969209968386869E36
attribute	temperature	actual_range	double	-1.865, 4.375
attribute	temperature	colorBarMaximum	double	10.0
attribute	temperature	colorBarMinimum	double	-5.0
attribute	temperature	column_name	String	col_5343
attribute	temperature	comment	String	Temperature
attribute	temperature	ioos_category	String	Temperature
attribute	temperature	long_name	String	Temperature
attribute	temperature	lter_mscale	String	ratio
attribute	temperature	lter_num_type	String	real
attribute	temperature	lter_units	String	C
attribute	temperature	lter_units_string	String	celsius
attribute	temperature	standard_name	String	sea_water_temperature
attribute	temperature	units	String	degree_C
attribute	temperature	units_conventions	String	AND-LTER,BNZ-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER
variable	salinity		double
attribute	salinity	_FillValue	double	9.969209968386869E36
attribute	salinity	actual_range	double	29.899, 79.919
attribute	salinity	colorBarMaximum	double	37.0
attribute	salinity	colorBarMinimum	double	32.0
attribute	salinity	column_name	String	col_5344
attribute	salinity	comment	String	Salinity
attribute	salinity	ioos_category	String	Salinity
attribute	salinity	long_name	String	Salinity
attribute	salinity	lter_mscale	String	ratio
attribute	salinity	lter_num_type	String	real
attribute	salinity	lter_units	String	PSU
attribute	salinity	lter_units_string	String	practicalSalinityUnit
attribute	salinity	standard_name	String	sea_water_practical_salinity
attribute	salinity	units	String	1
attribute	salinity	units_conventions	String	MCM-LTER,PAL-LTER
variable	sigmat		double
attribute	sigmat	_FillValue	double	9.969209968386869E36
attribute	sigmat	actual_range	double	24.001, 63.681
attribute	sigmat	colorBarMaximum	double	200.0
attribute	sigmat	colorBarMinimum	double	0.0
attribute	sigmat	column_name	String	col_5345
attribute	sigmat	comment	String	Sigma t (Density - 1000 kg m-3)
attribute	sigmat	ioos_category	String	Physical Oceanography
attribute	sigmat	long_name	String	Sigma-Theta
attribute	sigmat	lter_mscale	String	ratio
attribute	sigmat	lter_num_type	String	real
attribute	sigmat	lter_units	String	kg/m³
attribute	sigmat	lter_units_string	String	kilogramPerMeterCubed
attribute	sigmat	standard_name	String	sea_water_sigma_t
attribute	sigmat	units	String	kg m-3
attribute	sigmat	units_conventions	String	EML-LTER
variable	chlorophyll_a		double
attribute	chlorophyll_a	_FillValue	double	9.969209968386869E36
attribute	chlorophyll_a	actual_range	double	0.0, 1459.1
attribute	chlorophyll_a	colorBarMaximum	double	30.0
attribute	chlorophyll_a	colorBarMinimum	double	0.03
attribute	chlorophyll_a	colorBarScale	String	Log
attribute	chlorophyll_a	column_name	String	col_5347
attribute	chlorophyll_a	comment	String	Fluorescence
attribute	chlorophyll_a	ioos_category	String	Ocean Color
attribute	chlorophyll_a	long_name	String	Fluorescence
attribute	chlorophyll_a	lter_mscale	String	ratio
attribute	chlorophyll_a	lter_num_type	String	real
attribute	chlorophyll_a	lter_units	String	mg/m³
attribute	chlorophyll_a	lter_units_string	String	milligramPerMeterCubed
attribute	chlorophyll_a	standard_name	String	mass_concentration_of_chlorophyll_a_in_sea_water
attribute	chlorophyll_a	units	String	mg m-3
attribute	chlorophyll_a	units_conventions	String	EML-LTER
variable	transmissivity		double
attribute	transmissivity	_FillValue	double	9.969209968386869E36
attribute	transmissivity	actual_range	double	0.0, 100.0
attribute	transmissivity	column_name	String	col_5348
attribute	transmissivity	comment	String	Beam Transmission
attribute	transmissivity	ioos_category	String	Optical Properties
attribute	transmissivity	long_name	String	Beam Transmission
attribute	transmissivity	lter_mscale	String	ratio
attribute	transmissivity	lter_num_type	String	real
attribute	transmissivity	lter_units	String	%
attribute	transmissivity	lter_units_string	String	percent
attribute	transmissivity	units_conventions	String	BNZ-LTER,CAP-LTER,CDR-LTER,FCE-LTER,GCE-LTER,HBR-LTER,KNZ-LTER,MCM-LTER,NTL-LTER,NWT-LTER,PAL-LTER,PIE-LTER,SGS-LTER
variable	event		short
attribute	event	_FillValue	short	32767
attribute	event	actual_range	short	1, 1352
attribute	event	cf_role	String	profile_id
attribute	event	colorBarMaximum	double	100.0
attribute	event	colorBarMinimum	double	0.0
attribute	event	column_name	String	col_5337
attribute	event	comment	String	Sequential number assigned to sampling events aboard cruise
attribute	event	ioos_category	String	Identifier
attribute	event	long_name	String	Event Number
attribute	event	lter_mscale	String	nominal
attribute	event	units_conventions	String	EML-2.0.1,EML-2.1.0,EML-LTER
variable	grid_line		double
attribute	grid_line	_FillValue	double	NaN
attribute	grid_line	actual_range	double	-208.43, 1137.64
attribute	grid_line	column_name	String	col_5338
attribute	grid_line	comment	String	PAL LTER sampling grid line
attribute	grid_line	ioos_category	String	Unknown
attribute	grid_line	long_name	String	Grid Line
attribute	grid_line	lter_mscale	String	nominal
variable	grid_station		double
attribute	grid_station	_FillValue	double	NaN
attribute	grid_station	actual_range	double	-90.76, 556.3
attribute	grid_station	column_name	String	col_5339
attribute	grid_station	comment	String	PAL LTER sampling grid station
attribute	grid_station	ioos_category	String	Unknown
attribute	grid_station	long_name	String	Grid Line Station
attribute	grid_station	lter_mscale	String	nominal

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.