ERDDAP > info > landsat_sst_narrbay_v2_data

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	Institution	Dataset ID
data			graph			Landsat Satellite Surface Temperature version 2, Narragansett Bay		M	background		United States Geo...	landsat_sst_narrbay_v2_data

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	comment	String	Attribute Accuracy Report: Satellite-derived orthorectified brightness temperature was measured within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Satellite measurements were compared to in situ (buoy) surface temperatures from 2003 to 2022, and the mean bias between the RI DEM buoy temperatures and the satellite temperatures at the pixel of the buoys was added to or subtrcted from all scenes by satellite. The standard deviation between the buoys and the satellite after adding the bias is 1.9 degrees C for Landsat 5, 1.9 degrees C for Landsat 7 and 1.3 degrees C for Landsat 8. The standard deviation is considered the uncertainty of the satellite measurements. See https://www.usgs.gov/land-resources/nli/landsat/landsat-surface-reflectance?qt-science_support_page_related_con=0#qt-science_support_page_related_con for more information.
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.10, ACDD-1.3
attribute	NC_GLOBAL	creator_name	String	Rhode Island Data Discovery/United States Geological Survey
attribute	NC_GLOBAL	defaultGraphQuery	String	temperature[0:last][0:last][last]&.draw=surface&.vars=X|Y|temperature
attribute	NC_GLOBAL	description	String	Landsat-derived water surface temperature in Narragansett Bay with bias correction from RI DEM buoys.
attribute	NC_GLOBAL	history	String	Converted from Landsat 5, 7, and 8 Surface Reflectance geotiff products to netCDF. The units were changed from K to degrees C and the average bias determined through RI DEM buoy comparison in Mount Hope Bay (2003-2022) to each satellite was added to or subtracted from all scenes from the corresponding satellite. For Landsat 5, 0.45 degrees C was subtracted from all scenes; similarly, 1.094 was subtracted for Landsat 7, and 0.178 was added for Landsat 8. The errors were determined by averaging the five closest temporal buoy readings for each satellite image capture and spatially averaging buoy locations within a 200-square-meter zone. The scenes were also cloud masked, land masked, and stripes in Landsat 7 imagery (due to sensor failure) were masked as well. A buoy comparison was only conducted within Narragansett Bay for Landsat scenes with less than 50% cloud cover, and applied to available scenes back to 1984 for Landsat 5, 1999 for Landsat 7, and 2013 for Landsat 8. As a result, data uncertainties are unknown outside of the Narragansett Bay region, for scenes with greater cloud cover, and scenes before 2003.
attribute	NC_GLOBAL	infoUrl	String	https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/
attribute	NC_GLOBAL	institution	String	United States Geological Survey
attribute	NC_GLOBAL	keywords	String	amount, area, atmosphere, bay, cloud, cloud cover, cloud_area_fraction, cloudiness, clouds, cover, data, deseasonalized, detrended, discovery, earth, Earth Science > Atmosphere > Clouds > Cloud Amount/Frequency, Earth Science > Land Surface > Land Temperature > Land Surface Temperature, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, fraction, frequency, geological, hope, island, land, landsat, mount, number, ocean, oceans, over, rhode, satellite, science, sea, states, surface, surface_temperature, survey, temerapture, temperature, Temperature_detrend, time, united, version
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	publication	String	https://doi.org/10.26300/ja0b-xa86
attribute	NC_GLOBAL	publisher_name	String	Rhode Island Data Discovery
attribute	NC_GLOBAL	publisher_url	String	https://riddc.brown.edu/
attribute	NC_GLOBAL	references	String	Rhode Island Data Discovery/United States Geological Survey
attribute	NC_GLOBAL	source	String	https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Landsat-derived water surface temperature in Mount Hope Bay with bias correction from RI DEM buoys. For translation from the x,y coordinates to latitude and longitude see the "Landsat Satellite Coordinates version 2, Narragansett Bay" dataset.
attribute	NC_GLOBAL	time_coverage_end	String	2022-09-29T00:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	1984-05-02T00:00:00Z
attribute	NC_GLOBAL	title	String	Landsat Satellite Surface Temperature version 2, Narragansett Bay
dimension	time		double	nValues=764, evenlySpaced=false, averageSpacing=18 days 9h 16m 45s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	4.52304E8, 1.6644096E9
attribute	time	axis	String	T
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	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	Y		short	nValues=1130, evenlySpaced=true, averageSpacing=1.0
attribute	Y	actual_range	short	0, 1129
attribute	Y	long_name	String	Y
attribute	Y	source_name	String	y
attribute	Y	units	String	count
dimension	X		short	nValues=800, evenlySpaced=true, averageSpacing=1.0
attribute	X	actual_range	short	0, 799
attribute	X	long_name	String	X
attribute	X	source_name	String	x
attribute	X	units	String	count
variable	satellite		byte	time, Y, X
attribute	satellite	colorBarMaximum	double	8.0
attribute	satellite	colorBarMinimum	double	5.0
attribute	satellite	long_name	String	Landsat Satellite Number
attribute	satellite	note	String	This value is for the entire satellite image, so all values at a given timestep will be the same
attribute	satellite	units	String	Landsat 5, Landsat 7, or Landsat 8
variable	clouds		byte	time, Y, X
attribute	clouds	colorBarMaximum	double	100.0
attribute	clouds	colorBarMinimum	double	0.0
attribute	clouds	long_name	String	cloud cover over Narragansett Bay
attribute	clouds	note	String	This value is for the entire satellite image, so all values at a given timestep will be the same
attribute	clouds	standard_name	String	cloud_area_fraction
attribute	clouds	units	String	percent clouds
variable	temperature		double	time, Y, X
attribute	temperature	colorBarMaximum	double	25.0
attribute	temperature	colorBarMinimum	double	0.0
attribute	temperature	comment	String	Accuracy of Satellite = within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Uncertainty measurment of 1.9 degrees C derived from Landsat 5 comaprison with RI DEM buoys (2003-2022).
attribute	temperature	long_name	String	Surface Temperature
attribute	temperature	Measurement_Uncertainty_derived_from_surface_buoy_comparison_degC	double	1.9
attribute	temperature	standard_name	String	surface_temperature
attribute	temperature	units	String	degree_C
variable	temperature_detrend		double	time, Y, X
attribute	temperature_detrend	colorBarMaximum	double	5.0
attribute	temperature_detrend	colorBarMinimum	double	-5.0
attribute	temperature_detrend	comment	String	Accuracy of Satellite = within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Uncertainty measurment of 1.9 degrees C derived from Landsat 5 comaprison with RI DEM buoys (2003-2022).
attribute	temperature_detrend	long_name	String	Surface Temperature - deseasonalized and detrended
attribute	temperature_detrend	Measurement_Uncertainty_derived_from_surface_buoy_comparison_degC	double	1.9
attribute	temperature_detrend	units	String	degree_C

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.