ERDDAP > info > noaa_esrl_3ff8_b258_f62f

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	M		public	Top Dataset, pressure sprd, rhum.4Xday.1981-2010.ltm, 2.0°, 0001		F   I   M	background			NOAA ESRL/PSD	noaa_esrl_3ff8_b258_f62f

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	citation	String	Compo,G.P. <https://www.esrl.noaa.gov/psd/people/gilbert.p.compo>, J.S. Whitaker <https://www.esrl.noaa.gov/psd/people/jeffrey.s.whitaker>, and P.D. Sardeshmukh, 2006: Feasibility of a 100 year reanalysis using only surface pressure data. <https://www.esrl.noaa.gov/psd/people/gilbert.p.compo/Compoetal2006.pdf> /Bull. Amer. Met. Soc./, 87, 175-190.
attribute	NC_GLOBAL	comment	String	Data is from NOAA-CIRES 20th Century Reanalysis version 2 (4x/day). It consists of most variables interpolated to pressure surfaces from model (sigma) surfaces.
attribute	NC_GLOBAL	Conventions	String	CF-1.6, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	esrl.psd.data at noaa.gov
attribute	NC_GLOBAL	creator_name	String	NOAA ESRL PSD
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.esrl.noaa.gov/psd/
attribute	NC_GLOBAL	dataset_title	String	NOAA-CIRES 20th Century Reanalysis (V2)
attribute	NC_GLOBAL	Easternmost_Easting	double	358.0
attribute	NC_GLOBAL	geospatial_lat_max	double	90.0
attribute	NC_GLOBAL	geospatial_lat_min	double	-90.0
attribute	NC_GLOBAL	geospatial_lat_resolution	double	2.0
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	358.0
attribute	NC_GLOBAL	geospatial_lon_min	double	0.0
attribute	NC_GLOBAL	geospatial_lon_resolution	double	2.0
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	history	String	Created 2012/06/08 by do4XdayLTM_PRS Converted to chunked, deflated non-packed NetCDF4 2014/06
attribute	NC_GLOBAL	id	String	Datasets/20thC_ReanV2/Derived/4Xdailies/pressure_sprd/rhum.4Xday.1981-2010.ltm.nchttps://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/20thC_ReanV2/Derived/4Xdailies/pressure_sprd/rhum.4Xday.1981-2010.ltm.nc
attribute	NC_GLOBAL	infoUrl	String	https://www.esrl.noaa.gov/psd/data/gridded/data.20thC_ReanV2.html
attribute	NC_GLOBAL	institution	String	NOAA ESRL/PSD
attribute	NC_GLOBAL	keywords	String	2010.ltm, 20th, 6-hourly, atmosphere, atmospheric, century, cires, cooperative, daily, data, dataset, day, division, earth, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, environmental, esrl, hour, hourly, humidity, institute, laboratory, latitude, level, levels, long, longitude, mean, meteorology, noaa, noaa-cires, physical, pressure, psd, reanalysis, relative, relative_humidity, research, rhum, rhum.4xday.1981, rhum.4xday.1981-2010.ltm, science, sciences, sprd, spread, system, term, time, top, vapor, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
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	90.0
attribute	NC_GLOBAL	not_missing_threshold_percent	String	minimum 3% values input to have non-missing output value
attribute	NC_GLOBAL	platform	String	Model
attribute	NC_GLOBAL	references	String	https://www.esrl.noaa.gov/psd/data/gridded/data.20thC_ReanV2.html
attribute	NC_GLOBAL	sourceUrl	String	https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/20thC_ReanV2/Derived/4Xdailies/pressure_sprd/rhum.4Xday.1981-2010.ltm.nc
attribute	NC_GLOBAL	Southernmost_Northing	double	-90.0
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v29
attribute	NC_GLOBAL	summary	String	4x Daily NOAA-Cooperative Institute for Research in Environmental Sciences (CIRES) 20th Century Reanalysis. Data is from NOAA-CIRES 20th Century Reanalysis version 2 (4x/day). It consists of most variables interpolated to pressure surfaces from model (sigma) surfaces.
attribute	NC_GLOBAL	time_coverage_end	String	0001-12-31T18:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	0001-01-01T00:00:00Z
attribute	NC_GLOBAL	title	String	Top Dataset, pressure sprd, rhum.4Xday.1981-2010.ltm, 2.0°, 0001
attribute	NC_GLOBAL	version	String	2.0
attribute	NC_GLOBAL	Westernmost_Easting	double	0.0
dimension	time		double	nValues=1460, evenlySpaced=true, averageSpacing=6h 0m 0s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	-6.21357696E10, -6.21042552E10
attribute	time	avg_period	String	0030-00-00 00:00:00
attribute	time	axis	String	T
attribute	time	climatology	String	climatology_bounds
attribute	time	climo_period	String	1981/01/01 00Z - 2010/12/31 18Z
attribute	time	coordinate_defines	String	point
attribute	time	delta_t	String	0000-00-00 06:00:00
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Time
attribute	time	ltm_range	double	1586616.0, 1849578.0
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	level		float	nValues=19, evenlySpaced=true, averageSpacing=-50.0
attribute	level	actual_range	float	100.0, 1000.0
attribute	level	axis	String	Z
attribute	level	coordinate_defines	String	point
attribute	level	ioos_category	String	Pressure
attribute	level	long_name	String	Level
attribute	level	positive	String	down
attribute	level	units	String	millibar
dimension	latitude		float	nValues=91, evenlySpaced=true, averageSpacing=-2.0
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	float	-90.0, 90.0
attribute	latitude	axis	String	Y
attribute	latitude	coordinate_defines	String	point
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
dimension	longitude		float	nValues=180, evenlySpaced=true, averageSpacing=2.0
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	float	0.0, 358.0
attribute	longitude	axis	String	X
attribute	longitude	coordinate_defines	String	point
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	rhum		float	time, level, latitude, longitude
attribute	rhum	actual_range	float	0.06799698, 36.218
attribute	rhum	colorBarMaximum	double	100.0
attribute	rhum	colorBarMinimum	double	0.0
attribute	rhum	GRIB_id	short	52
attribute	rhum	GRIB_name	String	RH
attribute	rhum	ioos_category	String	Meteorology
attribute	rhum	level_desc	String	Pressure Levels
attribute	rhum	long_name	String	Long Term Mean 6-hourly Relative Humidity Spread on Pressure Levels
attribute	rhum	missing_value	float	-9.96921E36
attribute	rhum	parent_stat	String	Ensemble Spread
attribute	rhum	precision	short	3
attribute	rhum	standard_name	String	relative_humidity
attribute	rhum	statistic	String	Long Term Mean
attribute	rhum	units	String	percent
attribute	rhum	valid_range	float	0.0, 65.531
attribute	rhum	var_desc	String	Relative Humidity

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