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| USGS Earth Resources Observation and Science Center (EROS) |
| Overview | Pricing | User Guide | Product ReadMe | Order via GloVis | Order via EarthExplorer |
Naming ConventionFile Conventions are compliant with ISO-9660 Level-1 standards (8.3 file naming convention) and also compliant with ISO-9660 standards with Joliet extensions (permits file names greater than 8.3 and permits the use of lowercase characters).
File DescriptionsThe granules on the LANDSAT_ORTHO_ETM+ compact disc contains README files, an Object Description Language metadata file, a Sample FGDC Compliant Landsat-7 ETM+ Metadata file, Landsat image files, and a browse file. The number of image files per granule may vary.
- README.TXT: Self explanatory.
- README.PDF: Self explanatory.
- Sample FGDC Compliant Landsat-7 ETM+ Metadata: Self explanatory.
- METADATA: ODL: Self explanatory.
- IMAGE: Bands 1 through 8: Self explanatory.
- BROWSE: Image of the scene ordered.
- File Naming Convention (Browse, Metadata, and Image Files):
- /pppprrrr_isyyyymmdd_zzx_nnnx
- EXAMPLE: /p158r75_7t20000702_z58_nn62
- pppp: Path Indicator (4 characters)
- p = path
- Example: p158
- rrrr: Row Indicator (4 character maximum, not zero filled)
- r = row
- Example: r75
- _: Delimiter (1 character)
- i: Instrument Indicator (1 character)
- Values:
- 7 = Landsat-7
- s: Sensor Type (1 character: where valid parameters are "t", "p" and "k")
- Values:
- t = 28.5 multi-spectral data (6 bands)
- p = 14.25 meter pan data (1 band)
- k = 57 meter thermal data (2 bands)
- yyyymmdd: Acquisition Date (8 characters)
- Values:
- y = Year
- m = Month
- d = Day
- Example: 20000702
- _: Delimiter (1 character)
- z: UTM Zone Indicator (1character)
- Values:
- z = indicator
- zx: UTM Zone Number (1-3 characters, not zero filled)
- Example: 58
- _: Delimiter (1 character)
- nn: Resampling Method (2 characters)
- Values:
- nn = Nearest Neighbor
- nx: Band contained in the file (2 characters)
- Values: (Reflects band numbers as 2 digits)
- 10, 20, 30, 40, 50, 61, 62, 70, 80
- Example: 62
- Sample file name in its entirety reads as follows:
- /p158r75_7t20000702_z58_nn62
Data were compiled through NASA's Commercial Remote Sensing Program; this program is a cooperative effort between NASA and the commercial remote sensing community to provide users with access to quality-screened, high-resolution satellite images with global coverage over the Earth's land masses. The resulting Landsat Enhanced Thematic Mapper Plus (ETM+) data set contains orthorectified ETM+ sensor data from the Landsat-7 satellite. Only the ETM+ images most closely meeting a specific set of criteria, including acquisition date, cloud percentage, data quality parameters, and best available phenology, were considered for the collection. The Landsat ETM+ data were provided by the USGS and orthorectified through a NASA contract with Earth Satellite Corporation, Rockville, Maryland, and are part of NASA's Scientific Data Purchase program, developed in response to the President's Space Policy.
Approximately 8,500 Landsat ETM+ images were selected. These circa year 2000 scenes were acquired between 1999 and 2001, and have been orthorectified so as to tightly co-register with the earlier circa 1990 global Landsat TM coverage. NOTE: In both the circa 1990 and circa 2000 data sets, the temporal dates of individual scenes may vary between 1-3 years of the 1990/2000 baseline.) These images were either cloud-free or contained minimal cloud cover. In addition, only ETM+ images with a high quality ranking in regards to the possible presence of errors such as missing scans or saturated bands were selected. It was important to collect data during periods of peak greenness so NASA adopted an approach for image selection that was based upon a data set containing global 1-kilometer advanced very high-resolution radiometer Normalized Difference Vegetation Index data. It was sometimes difficult for NASA to obtain clear images during time frames of peak greenness, resulting in some image substitution from other times of the year.
Landsat ETM+ data are orthorectified using existing orthorectified TM data as horizontal control. Pixel cross-correlation is used to pass the control from the earlier orthorectified TM data to the Landsat ETM+. A patented Landsat large block triangulation procedure is used to perform a photogrammetric adjustment of each individual Landsat ETM+ scene; data are then placed into a UTM / WGS84 map projection. All bands are individually re-sampled, using a nearest neighbor algorithm. The result is a final image map product with a Root Mean Square Error (RMSE) of better than 50 meters in positional accuracy.
No restrictions.
Customer Services
U.S. Geological Survey
Earth Resources Observation and Science Center (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001
Tel: 800-252-4547
Tel: 605-594-6151
TDD: 605-594-6933
Fax: 605-594-6589
Email: custserv@usgs.gov
Business Hours: Monday thru Friday, 8:00 a.m. to 4:00 p.m., central time
Kalluri, Satya, Grant, Denelle, Tucker, Compton, Policelli, Fritz, Dykstra, Jon, and Bearden, Phil, 2000, NASA creates global archive of ortho-rectified Landsat data: EOS, Transactions, American Geophysical Union, v. 81, no. 50, p. 609, 617-618.
Dykstra, Jon D., Jan/Feb 2001, The GeoCover-Ortho Program: Covering the Entire Earth's Landmass with 14,000 Landsat Images; GEO INFORMATICS, p. 26-29. Reference is available in PDF format.
Approximate File Sizes: FILE TYPE FILE SIZE: (kilobytes) Metadata File: ODL 6 Image File: Band 1 56,599 Image File: Band 2 56,599 Image File: Band 3 56,599 Image File: Band 4 56,599 Image File: Band 5 56,599 Image File: Band 61 14,821 Image File: Band 62 14,821 Image File: Band 7 56,599 Image File: Band 8 223,766 Browse File: 24 ReadMe File: text 11 ReadMe File: pdf 107 Sample FGDC Compliant Landsat-7 ETM+ Metadata: GROUP = METADATA_FILE PRODUCT_CREATION_TIME = 2002-04-24T13:04:35Z PRODUCT_FILE_SIZE = 579.1 GROUP = ORTHO_PRODUCT_METADATA SPACECRAFT_ID = "Landsat7" SENSOR_ID = "ETM+" ACQUISITION_DATE = 2001-07-07 WRS_PATH = 098 WRS_ROW = 064 SCENE_CENTER_LAT = -5.7797315 SCENE_CENTER_LON = +144.2813318 SCENE_UL_CORNER_LAT = -4.8447464 SCENE_UL_CORNER_LON = +143.6397641 SCENE_UR_CORNER_LAT = -5.0820706 SCENE_UR_CORNER_LON = +145.2748028 SCENE_LL_CORNER_LAT = -6.4761725 SCENE_LL_CORNER_LON = +143.2873739 SCENE_LR_CORNER_LAT = -6.7132722 SCENE_LR_CORNER_LON = +144.9230946 SCENE_UL_CORNER_MAPX = 127204.754 SCENE_UL_CORNER_MAPY = -536426.888 SCENE_UR_CORNER_MAPX = 308749.754 SCENE_UR_CORNER_MAPY = -561991.388 SCENE_LL_CORNER_MAPX = 89214.254 SCENE_LL_CORNER_MAPY = -717344.888 SCENE_LR_CORNER_MAPX = 270417.254 SCENE_LR_CORNER_MAPY = -742538.888 BAND1_FILE_NAME = "p098r064_7t20010707_z55_nn10.tif" BAND2_FILE_NAME = "p098r064_7t20010707_z55_nn20.tif" BAND3_FILE_NAME = "p098r064_7t20010707_z55_nn30.tif" BAND4_FILE_NAME = "p098r064_7t20010707_z55_nn40.tif" BAND5_FILE_NAME = "p098r064_7t20010707_z55_nn50.tif" BAND61_FILE_NAME = "p098r064_7k20010707_z55_nn61.tif" BAND62_FILE_NAME = "p098r064_7k20010707_z55_nn62.tif" BAND7_FILE_NAME = "p098r064_7t20010707_z55_nn70.tif" BAND8_FILE_NAME = "p098r064_7p20010707_z55_nn80.tif" GROUP = PROJECTION_PARAMETERS REFERENCE_DATUM = "WGS84" REFERENCE_ELLIPSOID = "WGS84" GRID_CELL_SIZE_PAN = 14.250 GRID_CELL_SIZE_THM = 57.000 GRID_CELL_SIZE_REF = 28.500 ORIENTATION = "NUP" RESAMPLING_OPTION = "NN" MAP_PROJECTION = "UTM" END_GROUP = PROJECTION_PARAMETERS GROUP = UTM_PARAMETERS ZONE_NUMBER = +55 END_GROUP = UTM_PARAMETERS SUN_AZIMUTH = 46.3969226 SUN_ELEVATION = 47.9945595 QA_PERCENT_MISSING_DATA = 000 CLOUD_COVER = 000 PRODUCT_SAMPLES_PAN = 15582 PRODUCT_LINES_PAN = 14632 PRODUCT_SAMPLES_REF = 7791 PRODUCT_LINES_REF = 7316 PRODUCT_SAMPLES_THM = 3895 PRODUCT_LINES_THM = 3658 OUTPUT_FORMAT = "GEOTIFF" END_GROUP = ORTHO_PRODUCT_METADATA GROUP = L1G_PRODUCT_METADATA BAND_COMBINATION = "123456678" CPF_FILE_NAME = "L7CPF20010701_20010930_04" GROUP = MIN_MAX_RADIANCE LMAX_BAND1 = 191.600 LMIN_BAND1 = -6.200 LMAX_BAND2 = 196.500 LMIN_BAND2 = -6.400 LMAX_BAND3 = 152.900 LMIN_BAND3 = -5.000 LMAX_BAND4 = 241.100 LMIN_BAND4 = -5.100 LMAX_BAND5 = 31.060 LMIN_BAND5 = -1.000 LMAX_BAND61 = 17.040 LMIN_BAND61 = 0.000 LMAX_BAND62 = 12.650 LMIN_BAND62 = 3.200 LMAX_BAND7 = 10.800 LMIN_BAND7 = -0.350 LMAX_BAND8 = 243.100 LMIN_BAND8 = -4.700 END_GROUP = MIN_MAX_RADIANCE GROUP = MIN_MAX_PIXEL_VALUE QCALMAX_BAND1 = 255.0 QCALMIN_BAND1 = 1.0 QCALMAX_BAND2 = 255.0 QCALMIN_BAND2 = 1.0 QCALMAX_BAND3 = 255.0 QCALMIN_BAND3 = 1.0 QCALMAX_BAND4 = 255.0 QCALMIN_BAND4 = 1.0 QCALMAX_BAND5 = 255.0 QCALMIN_BAND5 = 1.0 QCALMAX_BAND61 = 255.0 QCALMIN_BAND61 = 1.0 QCALMAX_BAND62 = 255.0 QCALMIN_BAND62 = 1.0 QCALMAX_BAND7 = 255.0 QCALMIN_BAND7 = 1.0 QCALMAX_BAND8 = 255.0 QCALMIN_BAND8 = 1.0 END_GROUP = MIN_MAX_PIXEL_VALUE GROUP = PRODUCT_PARAMETERS CORRECTION_METHOD_GAIN_BAND1 = "CPF" CORRECTION_METHOD_GAIN_BAND2 = "CPF" CORRECTION_METHOD_GAIN_BAND3 = "CPF" CORRECTION_METHOD_GAIN_BAND4 = "CPF" CORRECTION_METHOD_GAIN_BAND5 = "CPF" CORRECTION_METHOD_GAIN_BAND61 = "CPF" CORRECTION_METHOD_GAIN_BAND62 = "CPF" CORRECTION_METHOD_GAIN_BAND7 = "CPF" CORRECTION_METHOD_GAIN_BAND8 = "CPF" CORRECTION_METHOD_BIAS = "IC" BAND1_GAIN = "H" BAND2_GAIN = "H" BAND3_GAIN = "H" BAND4_GAIN = "L" BAND5_GAIN = "H" BAND6_GAIN1 = "L" BAND6_GAIN2 = "H" BAND7_GAIN = "H" BAND8_GAIN = "L" BAND1_GAIN_CHANGE = "0" BAND2_GAIN_CHANGE = "0" BAND3_GAIN_CHANGE = "0" BAND4_GAIN_CHANGE = "0" BAND5_GAIN_CHANGE = "0" BAND6_GAIN_CHANGE1 = BAND6_GAIN_CHANGE2 = BAND7_GAIN_CHANGE = "0" BAND8_GAIN_CHANGE = "0" BAND1_SL_GAIN_CHANGE = "0" BAND2_SL_GAIN_CHANGE = "0" BAND3_SL_GAIN_CHANGE = "0" BAND4_SL_GAIN_CHANGE = "0" BAND5_SL_GAIN_CHANGE = "0" BAND6_SL_GAIN_CHANGE1 = "0" BAND6_SL_GAIN_CHANGE2 = "0" BAND7_SL_GAIN_CHANGE = "0" BAND8_SL_GAIN_CHANGE = "0" END_GROUP = PRODUCT_PARAMETERS GROUP = CORRECTIONS_APPLIED STRIPING_BAND1 = "NONE" STRIPING_BAND2 = "NONE" STRIPING_BAND3 = "NONE" STRIPING_BAND4 = "NONE" STRIPING_BAND5 = "NONE" STRIPING_BAND61 = "NONE" STRIPING_BAND62 = "NONE" STRIPING_BAND7 = "NONE" STRIPING_BAND8 = "NONE" BANDING = "N" COHERENT_NOISE = "N" MEMORY_EFFECT = "N" SCAN_CORRELATED_SHIFT = "N" DROPPED_LINES = "N" END_GROUP = CORRECTIONS_APPLIED END_GROUP = L1G_PRODUCT_METADATA END_GROUP = METADATA_FILE END
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