ERDDAP > info > nsidcCDRiceNRTshmday

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
data			graph		files	Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V1, Antarctic, 25km, Near Real-Time, 2016-Present, Monthly		M	background			NSIDC > National ...	nsidcCDRiceNRTshmday

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	acknowledgment	String	This project was supported in part by a grant from the NOAA Climate Data Record Program. Production of original NASA Team and Bootstrap algorithm estimates supported by the NASA Polar Distributed Active Archive Center. The sea ice concentration algorithms were developed by Donald J. Cavalieri, Josefino C. Comiso, Claire L. Parkinson, and others at the NASA Goddard Space Flight Center in Greenbelt, MD.
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	cdr_variable	String	seaice_conc_monthly_cdr
attribute	NC_GLOBAL	contributor_name	String	Walt Meier, Ruth Duerr, Florence Fetterer, Julienne Stroeve, Matt Savoie, Sean Mallory
attribute	NC_GLOBAL	contributor_role	String	PrincipalInvestigator,author,author,author,author,author
attribute	NC_GLOBAL	Conventions	String	CF-1.6, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	nsidc at nsidc.org
attribute	NC_GLOBAL	creator_name	String	NSIDC
attribute	NC_GLOBAL	creator_url	String	https://nsidc.org/
attribute	NC_GLOBAL	date_created	String	2021-06-01T14:39:11Z
attribute	NC_GLOBAL	defaultGraphQuery	String	seaice_conc_monthly_cdr[last][(-3937500.0)][(3937500.0)]&.draw=surface
attribute	NC_GLOBAL	false_easting	double	0.0
attribute	NC_GLOBAL	false_northing	double	0.0
attribute	NC_GLOBAL	GeoTransform	String	-3950000.0 25000.0 0 4350000.0 0 25000.0
attribute	NC_GLOBAL	grid_boundary_bottom_projected_y	double	-3950000.0
attribute	NC_GLOBAL	grid_boundary_left_projected_x	double	-3950000.0
attribute	NC_GLOBAL	grid_boundary_right_projected_x	double	3950000.0
attribute	NC_GLOBAL	grid_boundary_top_projected_y	double	4350000.0
attribute	NC_GLOBAL	grid_mapping_name	String	polar_stereographic
attribute	NC_GLOBAL	history	String	2017-07-03T15:07:45Z: Data file created using software: git@bitbucket.org:nsidc/seaice_cdr.git@9b08592bfdd4ff7d6fdf2b56f7d33c58e974ace0 /n 2021-06-01T08:00:14: Additional metadata was added. Timestamp was converted to seconds since 1970-01-01T00:00:00Z.
attribute	NC_GLOBAL	id	String	G10016
attribute	NC_GLOBAL	infoUrl	String	https://nsidc.org/data/g10016
attribute	NC_GLOBAL	institution	String	NSIDC > National Snow and Ice Data Center, NOAA
attribute	NC_GLOBAL	keywords	String	antarctic, area, bellingshausen, center, climate, concentration, cryosphere, data, day, deviation, distribution, Earth Science > Cryosphere > Sea Ice > Ice Extent, Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration, Earth Science > Oceans > Sea Ice > Ice Extent, estimated, extent, flag, flags, fraction, geographic, Geographic Region > Polar, Geographic Region > Southern Hemisphere, ice, ice distribution, melt, melt_onset_day_seaice_conc_monthly_cdr, microwave, month, monthly, national, near, near real time, noaa, noaa/nsidc, nsidc, ocean, Ocean > Southern Ocean, Ocean > Southern Ocean > Bellingshausen Sea, Ocean > Southern Ocean > Ross Sea, Ocean > Southern Ocean > Weddell Sea, oceans, onset, over, passive, polar, qa_of_seaice_conc_monthly_cdr, quality, real, real time, real-time, realtime, record, region, ross, science, science quality, sea, sea_ice_area_fraction, sea_ice_area_fraction status_flag, seaice_conc_monthly_cdr, snow, source, southern, standard, status, stdev_of_seaice_conc_monthly_cdr, time, version, weddell, xgrid, ygrid
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	latitude_of_projection_origin	double	-90.0
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. Please acknowledge the use of these data with the following statement: "These data were provided by NOAA's Center for Satellite Applications & Research (STAR) and the CoastWatch program and distributed by NOAA/NMFS/SWFSC/ERD. " To reference these data as a citation in a paper, please follow the instructions in the license and at this link: https://coastwatch.pfeg.noaa.gov/erddap/information.html#citeDataset
attribute	NC_GLOBAL	longitude_of_projection_origin	double	0.0
attribute	NC_GLOBAL	Metadata_Link	String	https://nsidc.org/api/dataset/metadata/v2/oai?verb=GetRecord&metadataPrefix=dif&identifier=g10016
attribute	NC_GLOBAL	naming_authority	String	nsidc.org
attribute	NC_GLOBAL	parent_grid_cell_column_subset_end	double	316.0
attribute	NC_GLOBAL	parent_grid_cell_column_subset_start	double	0.0
attribute	NC_GLOBAL	parent_grid_cell_row_subset_end	double	332.0
attribute	NC_GLOBAL	parent_grid_cell_row_subset_start	double	0.0
attribute	NC_GLOBAL	platform	String	DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17, DMSP 5D-3/F18 > Defense Meteorological Satellite Program-F18
attribute	NC_GLOBAL	processing_level	String	NOAA Level 3
attribute	NC_GLOBAL	product_version	String	v01r00
attribute	NC_GLOBAL	program	String	NOAA Climate Data Record Program
attribute	NC_GLOBAL	proj4text	String	+proj=stere +lat_0=-90 +lat_ts=-70 +lon_0=0 +k=1 +x_0=0 +y_0=0 +a=6378273 +b=6356889.449 +units=m +no_defs
attribute	NC_GLOBAL	proj_crs_code	String	EPSG:3412
attribute	NC_GLOBAL	proj_crs_code_description	String	The proj_crs_code attribute references a registered projection identifier (i.e. EPSG) when available. If the projection is not registered, non-standard then this attribute references a PolarWatch assigned internal identifier.
attribute	NC_GLOBAL	proj_units	String	meters
attribute	NC_GLOBAL	project	String	NOAA/NSIDC passive microwave sea ice concentration climate data record
attribute	NC_GLOBAL	projection	String	EPSG:3412, https://epsg.io/3412
attribute	NC_GLOBAL	publisher_email	String	erd.data at noaa.gov
attribute	NC_GLOBAL	publisher_name	String	NOAA NMFS SWFSC ERD
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	publisher_url	String	https://coastwatch.pfeg.noaa.gov
attribute	NC_GLOBAL	references	String	Comiso, J. C., and F. Nishio. 2008. Trends in the Sea Ice Cover Using Enhanced and Compatible AMSR-E, SSM/I, and SMMR Data. Journal of Geophysical Research 113, C02S07, doi:10.1029/2007JC0043257. ; Comiso, J. C., D. Cavalieri, C. Parkinson, and P. Gloersen. 1997. Passive Microwave Algorithms for Sea Ice Concentrations: A Comparison of Two Techniques. Remote Sensing of the Environment 60(3):357-84. ; Comiso, J. C. 1984. Characteristics of Winter Sea Ice from Satellite Multispectral Microwave Observations. Journal of Geophysical Research 91(C1):975-94. ; Cavalieri, D. J., P. Gloersen, and W. J. Campbell. 1984. Determination of Sea Ice Parameters with the NIMBUS-7 SMMR. Journal of Geophysical Research 89(D4):5355-5369. ; Cavalieri, D. J., C. l. Parkinson, P. Gloersen, J. C. Comiso, and H. J. Zwally. 1999. Deriving Long-term Time Series of Sea Ice Cover from Satellite Passive-Microwave Multisensor Data Sets. Journal of Geophysical Research 104(7): 15,803-15,814.
attribute	NC_GLOBAL	scaling_factor	double	1.0
attribute	NC_GLOBAL	semimajor_radius	double	6378273.0
attribute	NC_GLOBAL	semiminor_radius	double	6356889.449
attribute	NC_GLOBAL	sensor	String	SSMI/S > Special Sensor Microwave Imager/Sounder
attribute	NC_GLOBAL	software_version_id	String	git@bitbucket.org:nsidc/seaice_cdr.git@0dabe0adea30e5b0eb3bfe812d88a585ffb6c7e7
attribute	NC_GLOBAL	source	String	Satellite observations
attribute	NC_GLOBAL	sourceUrl	String	ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G02202_V3
attribute	NC_GLOBAL	spatial_ref	String	PROJCS["NSIDC Sea Ice Polar Stereographic South",GEOGCS["Unspecified datum based upon the Hughes 1980 ellipsoid",DATUM["Not_specified_based_on_Hughes_1980_ellipsoid",SPHEROID["Hughes 1980",6378273,298.279411123061,AUTHORITY["EPSG","7058"]],AUTHORITY["EPSG","6054"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4054"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-70],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],AUTHORITY["EPSG","3412"],AXIS["X",UNKNOWN],AXIS["Y",UNKNOWN]]
attribute	NC_GLOBAL	spatial_resolution	String	25km
attribute	NC_GLOBAL	srid	String	urn:ogc:def:crs:EPSG::3412
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v29
attribute	NC_GLOBAL	standard_parallel	double	-70.0
attribute	NC_GLOBAL	straight_vertical_longitude_from_pole	double	180.0
attribute	NC_GLOBAL	summary	String	Alert: There is a newer version of this dataset. Please use Version 2 of the NSIDC NRT Sea Ice Concentration CDR with ERDDAP ID: nsidcG10016v2shmday. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2shmday.graph. Version 1 Summary: This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. It provides a consistent, daily and monthly time series of sea ice concentrations from 09 July 1987 through the most recent processing for both the north and south polar regions. In addition, three other sea ice concentration products are included with the CDR that extend the sea ice measurements back to 26 October 1978. However, these three products are not included in the official CDR because processing the older data in a way that follows the standards of a CDR is not currently possible. All data are on a 25 km x 25 km grid. Variables containing standard deviation, quality flags, and projection information are also included.
attribute	NC_GLOBAL	time_coverage_duration	String	P1M
attribute	NC_GLOBAL	time_coverage_end	String	2021-05-16T00:00:00Z
attribute	NC_GLOBAL	time_coverage_resolution	String	P1M
attribute	NC_GLOBAL	time_coverage_start	String	2016-01-16T00:00:00Z
attribute	NC_GLOBAL	title	String	Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V1, Antarctic, 25km, Near Real-Time, 2016-Present, Monthly
dimension	time		double	nValues=65, evenlySpaced=false, averageSpacing=30 days 10h 7m 30s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.4529024E9, 1.6211232E9
attribute	time	axis	String	T
attribute	time	calendar	String	gregorian
attribute	time	coverage_content_type	String	coordinate
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Centered Time
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
dimension	ygrid		float	nValues=332, evenlySpaced=true, averageSpacing=-25000.0
attribute	ygrid	_CoordinateAxisType	String	GeoY
attribute	ygrid	actual_range	float	-3937500.0, 4337500.0
attribute	ygrid	axis	String	Y
attribute	ygrid	comment	String	xgrid values are the centers of the grid cells
attribute	ygrid	coverage_content_type	String	coordinate
attribute	ygrid	ioos_category	String	Location
attribute	ygrid	long_name	String	Projection Grid Y Centers
attribute	ygrid	standard_name	String	projection_y_coordinate
attribute	ygrid	units	String	meters
attribute	ygrid	valid_range	float	-3950000.0, 4350000.0
dimension	xgrid		float	nValues=316, evenlySpaced=true, averageSpacing=25000.0
attribute	xgrid	_CoordinateAxisType	String	GeoX
attribute	xgrid	actual_range	float	-3937500.0, 3937500.0
attribute	xgrid	axis	String	X
attribute	xgrid	comment	String	xgrid values are the centers of the grid cells
attribute	xgrid	coverage_content_type	String	coordinate
attribute	xgrid	ioos_category	String	Location
attribute	xgrid	long_name	String	Projection Grid X Centers
attribute	xgrid	standard_name	String	projection_x_coordinate
attribute	xgrid	units	String	meters
attribute	xgrid	valid_range	float	-3950000.0, 3950000.0
variable	seaice_conc_monthly_cdr		float	time, ygrid, xgrid
attribute	seaice_conc_monthly_cdr	_FillValue	float	-0.02
attribute	seaice_conc_monthly_cdr	ancillary_variables	String	stdev_of_seaice_conc_monthly_cdr qa_of_seaice_conc_monthly_cdr
attribute	seaice_conc_monthly_cdr	cell_methods	String	time: mean (interval: 1 month)
attribute	seaice_conc_monthly_cdr	colorBarMaximum	double	1.0
attribute	seaice_conc_monthly_cdr	colorBarMinimum	double	0.0
attribute	seaice_conc_monthly_cdr	colorBarPalette	String	KT_ice
attribute	seaice_conc_monthly_cdr	coverage_content_type	String	physicalMeasurement
attribute	seaice_conc_monthly_cdr	datum	String	+ellps=urn:ogc:def:crs:EPSG::4326
attribute	seaice_conc_monthly_cdr	flag_meanings	String	pole_hole lakes coastal land_mask missing_data
attribute	seaice_conc_monthly_cdr	flag_values	byte	-5, -4, -3, -2, -1
attribute	seaice_conc_monthly_cdr	grid_mapping	String	projection
attribute	seaice_conc_monthly_cdr	ioos_category	String	Ice Distribution
attribute	seaice_conc_monthly_cdr	long_name	String	NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration
attribute	seaice_conc_monthly_cdr	reference	String	https://nsidc.org/api/dataset/metadata/v2/oai?verb=GetRecord&metadataPrefix=dif&identifier=g10016
attribute	seaice_conc_monthly_cdr	standard_name	String	sea_ice_area_fraction
attribute	seaice_conc_monthly_cdr	units	String	1
attribute	seaice_conc_monthly_cdr	valid_range	float	0.0, 1.0
variable	stdev_of_seaice_conc_monthly_cdr		float	time, ygrid, xgrid
attribute	stdev_of_seaice_conc_monthly_cdr	_FillValue	float	-1.0
attribute	stdev_of_seaice_conc_monthly_cdr	colorBarMaximum	double	50.0
attribute	stdev_of_seaice_conc_monthly_cdr	colorBarMinimum	double	0.0
attribute	stdev_of_seaice_conc_monthly_cdr	coverage_content_type	String	qualityInformation
attribute	stdev_of_seaice_conc_monthly_cdr	datum	String	+ellps=urn:ogc:def:crs:EPSG::4326
attribute	stdev_of_seaice_conc_monthly_cdr	grid_mapping	String	projection
attribute	stdev_of_seaice_conc_monthly_cdr	ioos_category	String	Quality
attribute	stdev_of_seaice_conc_monthly_cdr	long_name	String	Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation
attribute	stdev_of_seaice_conc_monthly_cdr	missing_value	float	-1.0
attribute	stdev_of_seaice_conc_monthly_cdr	valid_range	float	0.0, 1.0
variable	melt_onset_day_seaice_conc_monthly_cdr		short	time, ygrid, xgrid
attribute	melt_onset_day_seaice_conc_monthly_cdr	_FillValue	short	32767
attribute	melt_onset_day_seaice_conc_monthly_cdr	cell_methods	String	time: mean (interval: 1 month)
attribute	melt_onset_day_seaice_conc_monthly_cdr	colorBarMaximum	double	250.0
attribute	melt_onset_day_seaice_conc_monthly_cdr	colorBarMinimum	double	50.0
attribute	melt_onset_day_seaice_conc_monthly_cdr	coverage_content_type	String	physicalMeasurement
attribute	melt_onset_day_seaice_conc_monthly_cdr	datum	String	+ellps=urn:ogc:def:crs:EPSG::4326
attribute	melt_onset_day_seaice_conc_monthly_cdr	grid_mapping	String	projection
attribute	melt_onset_day_seaice_conc_monthly_cdr	ioos_category	String	Ice Distribution
attribute	melt_onset_day_seaice_conc_monthly_cdr	long_name	String	Monthly Day of Snow Melt Onset Over Sea Ice
attribute	melt_onset_day_seaice_conc_monthly_cdr	missing_value	short	32767
attribute	melt_onset_day_seaice_conc_monthly_cdr	units	String	1
attribute	melt_onset_day_seaice_conc_monthly_cdr	valid_range	short	60, 244
variable	qa_of_seaice_conc_monthly_cdr		byte	time, ygrid, xgrid
attribute	qa_of_seaice_conc_monthly_cdr	_FillValue	byte	0
attribute	qa_of_seaice_conc_monthly_cdr	colorBarContinuous	String	false
attribute	qa_of_seaice_conc_monthly_cdr	colorBarMaximum	double	64.0
attribute	qa_of_seaice_conc_monthly_cdr	colorBarMinimum	double	-8.0
attribute	qa_of_seaice_conc_monthly_cdr	colorBarNSections	String	16
attribute	qa_of_seaice_conc_monthly_cdr	coverage_content_type	String	qualityInformation
attribute	qa_of_seaice_conc_monthly_cdr	datum	String	+ellps=urn:ogc:def:crs:EPSG::4326
attribute	qa_of_seaice_conc_monthly_cdr	flag_masks	byte	1, 2, 4, 8, 32, 64, -128
attribute	qa_of_seaice_conc_monthly_cdr	flag_meanings	String	BT_majority_algorithm_for_monthly_CDR NT_majority_algorithm_for_monthly_CDR no_ice_allowed_per_climatology grid_cell_near_to_coast ice_present_less_half_of_month melt_detected_at_least_one_day melt_detected_greater_than_half_month
attribute	qa_of_seaice_conc_monthly_cdr	grid_mapping	String	projection
attribute	qa_of_seaice_conc_monthly_cdr	ioos_category	String	Quality
attribute	qa_of_seaice_conc_monthly_cdr	long_name	String	Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration QC flags
attribute	qa_of_seaice_conc_monthly_cdr	missing_value	byte	0
attribute	qa_of_seaice_conc_monthly_cdr	standard_name	String	sea_ice_area_fraction status_flag
attribute	qa_of_seaice_conc_monthly_cdr	valid_range	byte	1, 127

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.