Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 19990415
Title: Landsat 7 Enhanced Thematic Mapper Plus Data 
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, South Dakota, USA
Publisher: U.S. Geological Survey
Online_Linkage: http://earthexplorer.cr.usgs.gov/
Description:
Abstract:
This data set is a raster file containing information for band 1 through band 8 for Landsat 7 Enhanced Thematic Mapper Plus (Landsat 7 ETM+). The area of coverage is global.
Purpose:
The mission of the Landsat-7 satellite is to provide a vehicle for continuing the flow of global change information to users worldwide. The Landsat-7 satellite fulfills its mission by providing repetitive, synoptic coverage of continental surfaces and by collecting data in spectral bands that include the visible, near-infrared, shortwave, and thermal infrared portions of the electromagnetic spectrum. Landsat-7 mission objectives include: Maintaining Landsat data continuity by providing data that are consistent in terms of data acquisition, geometry, spatial resolution, calibration, coverage characteristics, and spectral characteristics with previous Landsat data. Generating and periodically refreshing a global archive of substantially cloud-free, Sun-lit, land-mass imagery. Continuing to make remote sensing satellite data available to domestic and international users and expanding the use of such data for global change research in both the Government and private commercial sectors. Promoting interdisciplinary research via synergism with other EOS observations, in particular, orbiting in tandem with the EOS Terra satellite for near coincident observations.
Supplemental_Information:
The Landsat-7 system is another step in the development and application of remotely sensed satellite data for use in managing the Earth's land resources. As with earlier Landsat systems, the Landsat-7 platform, along with its enhanced thematic mapping sensor, provides for new capabilities in remote sensing of the Earth's land surface. Landsat-7 data are collected from a nominal altitude of 705 kilometers in a near-polar, near-circular, Sun-synchronous orbit at an inclination of 98.2 degrees, imaging the same 183-km swath of the Earth's surface every 16 days. Some of the browse images you encounter may appear black or empty. These are engineering data known as Full Aperture Calibrator (FAC) data. The FAC is a white painted panel that is deployed in front of the ETM+ aperture and diffusely reflects solar radiation into the full aperture of the instrument. The FAC scenes are typically gathered on a monthly basis and constitute roughly 5 to 7 scenes for each FAC collected. Eventually these engineering data will be gleaned out of the data base. Depending on the time of year, the solar azimuth angle with respect to the volocity vector of the ETM+ sensor, varies from 23 degrees to 37 degrees. This is the only area where FAC data will be collected.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates_Times:
Beginning_Date: 19990415
Ending Date: Present
Currentness_Reference: Ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Continually
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.00
East_Bounding_Coordinate: 180.00
North_Bounding_Coordinate: 82.00
South_Bounding_Coordinate: -82.00
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD Parameter Keywords
Theme_Keyword:
EARTH SCIENCE > RADIANCE OR IMAGERY > Infrared Wavelengths > Infrared Imagery
Theme_Keyword:
EARTH SCIENCE > RADIANCE OR IMAGERY > Sensor Characteristics > Ultraviolet Sensor Temperature
Theme_Keyword: EARTH SCIENCE > RADIANCE OR IMAGERY > Visible Wavelengths > Visible Imagery
Theme_Keyword:
EARTH SCIENCE > RADIANCE OR IMAGERY > Infrared Wavelengths > Brightness Temperature
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > Surface Radiative Properties > Reflectance
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > Land Use/Land Cover > Land Classes
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > Topography > Landforms
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > Landscape > Landscape Pattern
Place:
Place_Keyword_Thesaurus: GCMD Location Keywords
Place_Keyword: AFRICA
Place_Keyword: ANTARCTICA
Place_Keyword: ASIA
Place_Keyword: AUSTRALIA
Place_Keyword: EUROPE
Place_Keyword: GLOBAL
Place_Keyword: GREENLAND
Place_Keyword: LAND SURFACE
Place_Keyword: NORTH AMERICA
Place_Keyword: SOUTH AMERICA
Access_Constraints: There are no restrictions to this data set.
Use_Constraints:
There are no restrictions as to the use of data sold by the U.S. Geological Survey (USGS). We ask that the Earth Resources Observation Systems (EROS) Data Center (EDC) be identified as the source if data are used in a publication. The Enhanced Thematic Mapper Plus (ETM+) systematic data are distributed to all customers. Precision and terrain corrected products are limited to approved research users.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey EROS Data Center
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: Customer Services U.S. Geological Survey EROS Data Center
City: Sious Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6116
Contact_TDD_TTY_Telephone: 605-594-6933
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Hours_of_Service: 0800 - 1600 Central Time
Browse_Graphic:
Browse_Graphic_File_Description:
The browse identifier consists of: path/row/(acq year)/(entity_id)/.jpg This is a compressed and resampled version of the Landsat image.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
The Landsat Program, as defined by Congress in 1992 and amended by Presidential Decision Directive/NSTC-3 in May 1994, is managed cooperatively by the National Aeronautics and Space Administration (NASA), and the USGS. Responsibility for construction of the spacecraft and instrument lies with NASA. The Landsat Program is part of NASA's Earth Observing System global change initiative administered by NASA's Earth Science Enterprise. Data processing, archiving, and distribution are performed by the USGS. The primary ground station, the data handling facility and archive are located at the USGS EROS Data Center in Sioux Falls, SD. NASA will manage flight operations from the control center at the Goddard Space Flight Center until October 1, 2000, when responsibility for flight operations transfers to the USGS. The ground system will be able to distribute raw ETM+ data within 24 hours of its reception at the EROS Data Center. These functions are executed in coordination with the EDC Distributed Active Archive Center (EDC DAAC) of NASA's Earth Observing System Data and Information System.
Security_Information:
Security_Classification_System: none
Security_Classification: unclassified
Security_Handling_Description: none
Native_Data_Set_Environment: Oracle
Cross_Reference:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1982/07/16
Title: Landsat Thematic Mapper Imagery (Landsat TM)
Edition: 1.0
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, South Dakota, USA
Publisher: U.S. Geological Survey
Online_Linkage: http://earthexplorer.cr.usgs.gov/

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
A panchromatic band 8 was added, with a resolution of 15 meters. Band 6 now has high gain and low gain bands. There are three on-board calibrators (two solar, one internal), which provide an absolute accuracy of 5/dl> excluding band 6.
Logical_Consistency_Report:
Landsat-7 data are collected from a nominal altitude of 705 kilometers in a near-polar, near-circular, Sun-synchronous orbit at an inclination of 98.2 degrees, imaging the same 183-km swath of the Earth's surface every 16 days. The pixels representing the bands for the image are in the data set only once.
Completeness_Report:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The Landsat ETM+ sensor is a nadir-viewing, eight-band multispectral scanning radiometer that detects spectrally filtered radiation from several portions of the electromagnetic spectrum while orbiting the Earth from an altitude of 705 kilometers. Nominal ground sample distances or pixel sizes include 30 meters each for the six visible, near-infrared, and shortwave infrared bands, 60 meters for the thermal infrared band, and 15 meters for the panchromatic band. The ETM+ sensor is designed to produce approximately 3.8 gigabits of data for each Landsat scene. The Landsat ETM+ sensor operates from a 3-axis, stabilized satellite platform. Energy reflected from the Earth's surface passes through several ETM+ subsystems before being collected by the solid-state detectors at the focal plane. Landsat ETM+ Wavelength(micrometers) Band 1 0.45-0.52, Band 2 0.53-0.61, Band 3 0.63-0.69, Band 4 0.78-0.90, Band 5 1.55-1.75, Band 6 10.40-12.50, Band 7 2.09-2.35, and Band 8 .52-.90.
Lineage:
Process_Step:
Process_Description:
Data collected by the ETM+ sensor flown aboard the Landsat-7 satellite are in a raw format, meaning that radiometric and geometric corrections have not yet been applied to the data. Data collected in the raw format are level-0 data and equate to a Landsat-7 level-0R product. When a Landsat-7 level-0R product is radiometrically corrected, it is referred to as a level-1R product. Radiometric correction is performed either by using gains computed on the fly by the internal calibrator or by using gains available in the calibration parameter file. When a Landsat-7 level-0R product is both radiometrically and geometrically (systematically) corrected, it is referred to as a level-1G product. Correction algorithms model the spacecraft and the sensor, using data generated by onboard computers during imaging events. A level-1G product is a geometrically rectified product that is free from distortions related to the satellite platform , the sensor, and global Earth characteristics. Distortions due to the Earth's terrain are still present. Please see
http://edcwww.cr.usgs.gov/glis/hyper/guide/nlaps.html for more information.
Source_Used_Citation_Abbreviation: Landsat ETM
Process_Date: unknown
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Service Representative
Contact_Address:
Address_Type: Mailing and physical address
Address: U.S. Geological Survey
City: Sioux Falls
State_or_Province: South Dakota
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605.594.6116
Contact_TDD_TTY_Telephone: 605.594.6933
Contact_Facsimile_Telephone: 605.594.6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Hours_of_Service: 0800 - 1600 CT

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Remote-sensing image
Raster_Object_Information:
Raster_Object_Type: pixel
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Space_Oblique_Mercator_Landsat:
Path_Number: 37


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey EROS Data Center
Contact_Person: Customer Services Representative
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: Customer Services U.S. Geological Survey EROS Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6116
Contact_TDD_TTY_Telephone: 605-594-6933
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Hours_of_Service: 0800 - 1600 Central Time
Contact_Instructions:
Automated Ordering. Your order is forwarded to Customer Services at the U.S. Geological Survey's EROS Data Center via the Earth Explorer system. If you are a user of the system, you may place an order with a credit card. We use a secure credit card server that encrypts sensitive information passed from the user's browser to our Web server. Manual Ordering. Write down the ordering ID(s) for your item(s). Contact Customer Services between the hours of 8:00 a.m. and 4:00 p.m. CT.
 
Distribution_Liability:
Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. The USGS will warrant the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustment of credit must be made within 60 days from the date of this shipment from the order site.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: HDF Hierarchical Data Format
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: Data can be found at: http://earthexplorer.usgs.gov/
Information on the HDF, including reference manuals, user guides, release notes, newsletters, and source code, is available through the National Center for Supercomputing Applications HDF Group's Web site at
http://hdf.ncsa.uiuc.edu/
Dialup_Instructions:
Compression_Support: Browse files have a HDF JPEG compression.
Access_Instructions: Landsat_ETM+ data are available through: http://earthexplorer.cr.usgs.gov/
Online_Computer_and_Operating_System: Semi-Anonymous File Transfer Protocol (FTP)
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 650
Recording_Density_Units: megabytes
Recording_Format: ISO 9660
Compatibility_Information: None
Offline_Option:
Offline_Media: Tape
Recording_Capacity:
Recording_Density: High density
Recording_Format:
Tapes are only available in high-density mode. They will be created with the UNIX utility Tar. The first file on the 8-mm tape is the L1 volume descriptor (READ-ME file). The file names for the READ-ME files for each of the Level-1 product formats is README.HDF, README.GTF, and README.FF7.
Digital_Form:
Digital_Transfer_Information:
Format_Name: GEOTIFF
Format_Version_Number: 1.8.1
Transfer_Size: 500
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://earthexplorer.cr.usgs.gov/
Digital_Form:
Digital_Transfer_Information:
Format_Name: Fast L7
Format_Version_Number: 1
Transfer_Size: 500
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://earthexplorer.cr.usgs.gov/
Digital_Form:
Digital_Transfer_Information:
Format_Name: NDF NLAPS Data Format
Format_Version_Number: 3.0
Transfer_Size: 500
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://earthexplorer.cr.usgs.gov/
Fees:
The cost for the Level 1G product is $600 per full scene in HDF on 8 mm high density tape or CD-R media. The cost for the Level 0R product is $475 per full scene in HDF on 8 mm high density tape. See
http://edcsns17.cr.usgs.gov/helpdocs/prices.htmlfor current pricing and shipping information.
Ordering_Instructions:
Data set searching and ordering capabilities of Level-0 Reformatted (L0R), Level-1 Radiometrically Corrected (L1R), and Level-1 Geometrically Corrected (L1G) are available through Earth Explorer at:
http://earthexplorer.cr.usgs.gov/
The L0R data are reformatted, raw data acquired by the satellite as it views the Earth. The data are not radiometrically corrected, the pixels are not resampled or geometrically registered to an Earth location. The L1R product is a radiometrically corrected image. Radiometric correction is performed using either gains in the Calibration Parameter File or gains computed on the fly from the Internal Calibrator. The choice is available to a user when the product is ordered. Radiometric corrections are not reversible. The L1R product geometry is identical to the input L0R data. These L1R data are available to approved researchers only. The L1G product is a radiometrically and systematically corrected L0R image. The correction algorithms model the spacecraft and sensor, using data generated by onboard computers during imaging events. The radiometrically corrected pixels are resampled for geometric correction and registration to an Earth location with a geodetic accuracy of 5 to 25 times the sensor's ground instantaneous field of view.
Turnaround: 2 - 3 weeks

Metadata_Reference_Information:
Metadata_Date: 1999/09/10
Metadata_Review_Date: This metadata was last updated 2000/07/14.
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey EROS Data Center
Contact_Position: Information Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: Archive and Information Management, EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6594
Contact_TDD_TTY_Telephone: 605-594-6933
Contact_Facsimile_Telephone: 605-594-6953
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Hours_of_Service: 0800 - 1600 Central Time
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998