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                        <gco:CharacterString>SYD Landsat raw data v01</gco:CharacterString>
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                <gco:CharacterString>## **Abstract** 

This dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied.


Landsat TM, and ETM+ data are provided in GeoTIFF for Level 1T (terrain corrected) products, or for either Level 1Gt (systematic terrain corrected) or Level 1G (systematic corrected) products, if Level 1T processing is not available. GeoTIFF defines a set of publicly available TIFF tags that describe cartographic and geodetic information associated with TIFF images. GeoTIFF is a format that enables referencing a raster image to a known geodetic model or map projection. 


The initial tags are followed by image data that, in turn, may be interrupted by more descriptive tags. By using the GeoTIFF format, both metadata and image data can be encoded into the same file. The Landsat 7 ETM+ GeoTIFF file format is described in detail in the"Landsat 7 ETM+ Level 1 Product Data Format Control Book (DFCB), LSDS-272": http://landsat.usgs.gov/documents/LSDS-272.pdf. The Landsat 4-5 TM GeoTIFF file format is described in detail in the "Landsat Thematic Mapper (TM) Level 1 (L1) Data Format Control Book (DFCB), LS-DFCB-20": http://landsat.usgs.gov/documents/LS-DFCB-20.pdf. 


For more information on GeoTIFF visit: http://trac.osgeo.org/geotiff

## **Dataset History** 

ORGANIZATION


Each band of Landsat data in the GeoTIFF format is delivered as a grayscale, uncompressed, 8-bit string of unsigned integers. A metadata (MTL) file is included with data processed through the Level-1 Product Generation System (LPGS). A file containing the ground control points (GCP) used during image processing is also included. A processing history (WO) file is included with data processed through the National Landsat Archive Production System (NLAPS). Landsat 7 ETM+ SLC-off products processed after December 11, 2008, will include an additional directory (gap_mask) that contains a set of flat binary scan gap mask files (one per band). (Please note that the processing date and acquisition date are not necessarily the same.)


\* DATA FILE NAMES

The file naming convention for Landsat LPGS-processed GeoTIFF data

is as follows:


LMSppprrrYYYYDOYGSIVV_BN.TIF where:

     L           = Landsat  

     M           = Mission (E for ETM+ data; T for TM data; M for MSS)

     S           = Satellite (7 = Landsat 7, 5 = Landsat 5, 4 = Landsat 4)

     ppp         = starting path of the product

     rrr         = starting and ending rows of the product

     YYYY        = acquisition year

     DOY         = Julian date

     GSI         = Ground Station Identifier 

     VV          = 2 digit version number

     BN          = file type:

          B1         = band 1

          B2         = band 2

          B3         = band 3

          B4         = band 4

          B5         = band 5

          B6_VCID_1  = band 6L (low gain)  (ETM+)

          B6_VCID_2  = band 6H (high gain) (ETM+)

          B6         = band 6 (TM and MSS)

          B7         = band 7 

          B8         = band 8 (ETM+)

          MTL        = Level-1 metadata

          GCP        = ground control points

     TIF         = GeoTIFF file extension


The file naming convention for Landsat NLAPS-processed GeoTIFF data 

is as follows:


LLNppprrrOOYYDDDMM_AA.TIF  where:

     LL          = Landsat sensor (LT for TM data)

     N           = satellite number

     ppp         = starting path of the product

     rrr         = starting row of the product

     OO          = WRS row offset (set to 00)

     YY          = last two digits of the year of 

                   acquisition

     DDD         = Julian date of acquisition

     MM          = instrument mode (10 for MSS; 50 for TM)

     AA          = file type:

          B1          = band 1

          B2          = band 2

          B3          = band 3

          B4          = band 4

          B5          = band5

          B6          = band 6

          B7          = band 7

          WO          = processing history file 

     TIF         = GeoTIFF file extension


\* GAP MASKS


All Landsat 7 ETM+ SLC-off imagery processed on or after December 11, 2008, will include gap mask files. (Please note the difference between acquisition date and processing date, files dates are not necessarily the same.) The gap mask files are bit mask files showing the locations of the image gaps (areas that fall between ETM+ scans). One tarred and gzip-compressed gap mask file is provided for each band in GeoTIFF format. The file naming convention for gap mask files is identical to that described above for LPGS-processed GeoTIFF data, with "_GM" inserted before file type.


If gap mask files are not included with the data, a tutorial for creating them can be found at: http://landsat.usgs.gov/gap_mask_files_are_not_provided_can_I_create_my_own.php


\* README


The README_GTF.TXT (or README.GTF) is an ASCII text file and is this file.


\* READING DATA    


Delivered via file transfer protocol (FTP): data files are tarred and g-zip compressed and will need to be unzipped and untarred before the data files can be used. UNIX systems should have the "gunzip" and "tar"

commands available for uncompressing and accessing the data. For PC users, free software can be downloaded from an online source. Otherwise, check your PC, as you may already have appropriate software available.


No software is included on this product for viewing Landsat data. 


GENERAL INFORMATION and DOCUMENTATION


Landsat Project Information:

http://landsat.usgs.gov


Landsat data access:

  \* USGS Global Visualization Viewer (GloVis):  http://glovis.usgs.gov

  \* USGS EarthExplorer:  http://earthexplorer.usgs.gov

  \* USGS LandsatLook Viewer:  http://landsatlook.usgs.gov

  \* Landsat International Ground Station (IGS) network:  

                     http://landsat.usgs.gov/about_ground_stations.php


FGDC metadata:

http://www.fgdc.gov/metadata   


Data restrictions and citation:

https://lta.cr.usgs.gov/citation


\* National Snow and Ice Data Center (NSIDC) 

Radarsat Antarctic Mapping Project (RAMP) elevation data citation:


Liu, H., K. Jezek, B. Li, and Z. Zhao. 2001. 

Radarsat Antarctic Mapping Project digital elevation model version 2. 

Boulder, CO: National Snow and Ice Data Center. Digital media. 


For information on the data, please refer to the data set documentation 

available at the following web site: 

http://nsidc.org/data/nsidc-0082.html


PRODUCT SUPPORT

 
For further information on this product, contact USGS 

EROS Customer Services:


Customer Services (ATTN: Landsat)

U.S. Geological Survey

Earth Resources Observation and Science (EROS) Center

47914 252nd Street

Sioux Falls, SD 57198-0001


Tel: 800-252-4547

Tel: 605-594-6151 

Email: custserv@usgs.gov 


For information on other products from USGS EROS:

http://eros.usgs.gov/  or https://lta.cr.usgs.gov/


For information on other USGS products:

http://ask.usgs.gov/  

or call 1-888-ASK-USGS (275-8747)


DISCLAIMER


Any use of trade, product, or firm names is for descriptive 

purposes only and does not imply endorsement by the U.S. 

Government.


Publication Date:  July 2014

## **Dataset Citation** 

U.S. Geological Survey (2014) SYD Landsat raw data v01. Bioregional Assessment Source Dataset. Viewed 18 June 2018, http://data.bioregionalassessments.gov.au/dataset/fe7aa98d-ea2a-48fc-bc09-1d5ce3a50246.</gco:CharacterString>
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