Earth Resources Observation and Science Center (EROS)


USGS Global Visualization Viewer: About Browse Images

Contents:


Collection Descriptions

Aerial Data Description Download
Available
NAPP National Aerial Photography Program (1987 - present) Yes
NHAP National High Altitude Photography (1980 - 1989) Yes



ASTER Data Description Download
Available
ASTER Level-1A Day Advanced Spaceborne Thermal Emission and Reflection Radiometer - Descending/Day (2000 - present)
Product includes Visible and Near Infrared (VNIR), Thermal Infrared (TIR), and Shortwave Infrared (SWIR) bands; VNIR is shown
No
ASTER Level-1A Night Advanced Spaceborne Thermal Emission and Reflection Radiometer - Ascending/Night (2000 - present)
Product includes Shortwave Infrared (SWIR) and Thermal Infrared (TIR) bands; TIR is shown
No
ASTER Level-1B U.S. Day Advanced Spaceborne Thermal Emission and Reflection Radiometer - Descending/Day - United States (2000 - present)
Product includes Visible and Near Infrared (VNIR), Thermal Infrared (TIR), and Shortwave Infrared (SWIR) bands; VNIR is shown
Yes
ASTER Level-1B U.S. Night Advanced Spaceborne Thermal Emission and Reflection Radiometer - Ascending/Night - United States (2000 - present)
Product includes Shortwave Infrared (SWIR) and Thermal Infrared (TIR) bands; TIR is shown
Yes



EO-1 Data Description Download
Available
EO-1 ALI Earth Observing One - Advanced Land Imager (2001 - present) Yes
EO-1 Hyperion Earth Observing One - Hyperion (2001 - present) Yes



Landsat Archive
Collections
Data Description Download
Available
Landsat 8 OLI (2013-->) Landsat 8 Operational Land Imager (OLI) (April 2013 - present) Yes
Landsat 8 OLI Pre-WRS-2 Landsat 8 Operational Land Imager (OLI) (February 27 - April 10, 2013) Yes
L7 SLC-off (2003-->) Landsat 7 Enhanced Thematic Mapper Plus (ETM+) Scan Line Corrector Off (SLC-off) (May 2003 - present) Yes *
L7 SLC-on (1999-2003) Landsat 7 Enhanced Thematic Mapper Plus (ETM+) (1999 - May 2003) Yes *
Landsat 4-5 TM Landsat 4-5 Thematic Mapper (TM) (1982 - 2012) Yes *
Landsat 4-5 MSS Landsat 4-5 Multispectral Scanner (MSS) (1982 - 1992, 2012 - 2013) Yes *
Landsat 1-3 MSS Landsat 1-3 Multispectral Scanner (MSS) (1972 - 1983) Yes *
Landsat 4 - Present Landsat 4 - Present (MSS, TM, ETM+, and OLI) Combined Yes *
* Landsat Archive Collection images may require processing before being available to download. Those scenes may be submitted for processing at no charge and downloaded at no charge following a processing delay. Scenes from the Landsat archive are available at no charge, processed to Standard Terrain Correction (Level 1T). While some scenes do not have the ground-control or elevation data necessary to perform L1T correction, the best level of correction is applied. More details at the Landsat page, under Product Information.



Global Land Survey
(GLS)
Data Description Download
Available
GLS2010 Global Land Survey 2010; Landsat 7 ETM+ and Landsat 5 TM (2008 - 2011) Yes
GLS2010 - Islands (EO-1) Global Land Survey 2010; Earth Observing 1 (EO-1) Advanced Land Imager (ALI) - Islands (2009 - 2011) Yes
GLS2005 Global Land Survey 2005; Landsat 7 ETM+ and Landsat 5 TM (2003 - 2008) Yes
GLS2005 - Islands (EO-1) Global Land Survey 2005; Earth Observing 1 (EO-1) Advanced Land Imager (ALI) - Islands (2004 - 2008) Yes
GLS2000 Global Land Survey 2000; Landsat 7 ETM+ and Landsat 5 TM (1999 - 2003) Yes
GLS1990 Global Land Survey 1990; Landsat 4-5 TM (1984 - 1997) Yes
GLS1975 (Landsat 4-5) Global Land Survey 1975; Landsat 4-5 MSS (1982 - 1987) Yes
GLS1975 (Landsat 1-3) Global Land Survey 1975; Landsat 1-3 MSS (1972 - 1983) Yes



Landsat MRLC
Collections
Data Description Download
Available
MRLC/MTBS Radiance Multi-Resolution Landsat Characterization Terrain Corrected (TC) Yes
MRLC/MTBS Reflectance Multi-Resolution Landsat Characterization Reflectance Adjusted Yes



Landsat Legacy
Collections
Data Description Download
Available
ETM+ Pan Mosaics (1999-2003) Tri-Decadal Global Landsat Orthorectified Pan-Sharpened ETM+ Mosaics Yes
TM Mosaics (1994-1997) Tri-Decadal Global Landsat Orthorectified Thematic Mapper (TM) Mosaics Yes
ETM+ Pan (1999-2003) Tri-Decadal Global Landsat Orthorectified Pan-Sharpened ETM+ (1999 - 2003) Yes
ETM+ (1999-2003) Tri-Decadal Global Landsat Orthorectified ETM+ (1999 - 2003) Yes
TM (1987-1997) Tri-Decadal Global Landsat Orthorectified Thematic Mapper (TM) (1987 - 1997) Yes
MSS 4-5 (1982-1987) Tri-Decadal Global Landsat Orthorectified Multispectral Scanner (MSS) 4-5 (1982 - 1987) Yes
MSS 1-3 (1972-1983) Tri-Decadal Global Landsat Orthorectified Multispectral Scanner (MSS) 1-3 (1972 - 1983) Yes
Systematic ETM+ L1G (1999-2003) Landsat 7 Enhanced Thematic Mapper Plus Systematically Terrain Corrected (1999-May 2008) Yes
NALC Triplicates North American Landscape Characterization (NALC) Triplicates Yes



MODIS Aqua Data Description Download
Available
MYD09A1 MODIS/Aqua Surface Reflectance 8-Day L3 Global 500m SIN Grid No
MYD09GA MODIS/Aqua Surface Reflectance Daily L2G Global 1km and 500m SIN Grid No
MYD09GQ MODIS/Aqua Surface Reflectance Daily L2G Global 250m SIN Grid No
MYD09Q1 MODIS/Aqua Surface Reflectance 8-Day L3 Global 250m SIN Grid No
MYD11A1 Day MODIS/Aqua Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid Day No
MYD11A1 Night MODIS/Aqua Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid Night No
MYD11A2 Day MODIS/Aqua Surface Temperature/Emissivity 8-day L3 Global 1km SIN Grid Day No
MYD11A2 Night MODIS/Aqua Surface Temperature/Emissivity 8-day L3 Global 1km SIN Grid Night No
MYD11B1 Day MODIS/Aqua Surface Temperature/Emissivity Daily L3 Global 5km SIN Grid Day No
MYD11B1 Night MODIS/Aqua Surface Temperature/Emissivity Daily L3 Global 5km SIN Grid Night No
MYD13A1 EVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 500m SIN Grid EVI No
MYD13A1 NDVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 500m SIN Grid NDVI No
MYD13A2 EVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 1km SIN Grid EVI No
MYD13A2 NDVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 1km SIN Grid NDVI No
MYD13A3 EVI MODIS/Aqua Vegetation Indices Monthly L3 Global 1km SIN Grid EVI No
MYD13A3 NDVI MODIS/Aqua Vegetation Indices Monthly L3 Global 1km SIN Grid NDVI No
MYD13Q1 EVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 250m SIN Grid EVI No
MYD13Q1 NDVI MODIS/Aqua Vegetation Indices 16-Day L3 Global 250m SIN Grid NDVI No
MYD14A1 MODIS/Aqua Thermal Anomalies/Fire Daily L3 Global 1km SIN Grid No
MYD14A2 MODIS/Aqua Thermal Anomalies/Fire 8-Day L3 Global 1km SIN Grid No
MYD15A2 FPAR MODIS/Aqua Leaf Area Index/FPAR 8-Day L4 Global 1km SIN Grid FPAR No
MYD15A2 LAI MODIS/Aqua Leaf Area Index/LAI 8-Day L4 Global 1km SIN Grid LAI No
MYD17A2 GPP MODIS/Aqua Gross Primary Productivity 8-day L4 Global 1km SIN Grid GPP No
MYD17A2 Net Photosynthesis MODIS/Aqua Gross Primary Productivity 8-day L4 Global 1km SIN Grid Net Photosynthesis No



MODIS Terra Data Description Download
Available
MOD09A1 MODIS/Terra Surface Reflectance 8-Day L3 Global 500m SIN Grid No
MOD09GA MODIS/Terra Surface Reflectance Daily L2G Global 1km and 500m SIN Grid No
MOD09GQ MODIS/Terra Surface Reflectance Daily L2G Global 250m SIN Grid No
MOD09Q1 MODIS/Terra Surface Reflectance 8-day L3 Global 250m SIN Grid No
MOD11A1 Day MODIS/Terra Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid Day No
MOD11A1 Night MODIS/Terra Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid Night No
MOD11A2 Day MODIS/Terra Surface Temperature/Emissivity 8-day L3 Global 1km SIN Grid Day No
MOD11A2 Night MODIS/Terra Surface Temperature/Emissivity 8-day L3 Global 1km SIN Grid Night No
MOD11B1 Day MODIS/Terra Surface Temperature/Emissivity Daily L3 Global 5km SIN Grid Day No
MOD11B1 Night MODIS/Terra Surface Temperature/Emissivity Daily L3 Global 5km SIN Grid Night No
MOD13A1 EVI MODIS/Terra Vegetation Indices 16-Day L3 Global 500m SIN Grid EVI No
MOD13A1 NDVI MODIS/Terra Vegetation Indices 16-Day L3 Global 500m SIN Grid NDVI No
MOD13A2 EVI MODIS/Terra Vegetation Indices 16-Day L3 Global 1km SIN Grid EVI No
MOD13A2 NDVI MODIS/Terra Vegetation Indices 16-Day L3 Global 1km SIN Grid NDVI No
MOD13A3 EVI MODIS/Terra Vegetation Indices Monthly L3 Global 1km SIN Grid EVI No
MOD13A3 NDVI MODIS/Terra Vegetation Indices Monthly L3 Global 1km SIN Grid NDVI No
MOD13Q1 EVI MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid EVI No
MOD13Q1 NDVI MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid NDVI No
MOD14A1 MODIS/Terra Thermal Anomalies/Fire Daily L3 Global 1km SIN Grid No
MOD14A2 MODIS/Terra Thermal Anomalies/Fire 8-Day L3 Global 1km SIN Grid No
MOD15A2 FPAR MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 1km SIN Grid FPAR No
MOD15A2 LAI MODIS/Terra Leaf Area Index/LAI 8-Day L4 Global 1km SIN Grid LAI No
MOD17A2 GPP MODIS/Terra Gross Primary Productivity 8-Day L4 Global 1km SIN Grid GPP No
MOD17A2 Net Photosynthesis MODIS/Terra Gross Primary Productivity 8-Day L4 Global 1km SIN Grid Net Photosynthesis No
MOD17A3 GPP MODIS/Terra Gross Primary Productivity Yearly L4 Global 1km SIN Grid No
MOD17A3 NPP MODIS/Terra Net Primary Production Yearly L4 Global 1km SIN Grid No
MOD44B MODIS/Terra Vegetation Continuous Fields (VCF) Yearly L3 Global 250km SIN Grid No



MODIS Combined Data Description Download
Available
MCD15A2 FPAR MODIS/Terra+Aqua Leaf Area Index/FPAR 8-day L4 Global 1km SIN Grid No
MCD15A2 LAI MODIS/Terra+Aqua Leaf Area Index/LAI 8-day L4 Global 1km SIN Grid No
MCD15A3 FPAR MODIS/Terra+Aqua Fraction of Photosynthetically Active Radiation (FPAR) 4-day L4 Global 1km SIN Grid No
MCD15A3 LAI MODIS/Terra+Aqua Leaf Area Index (LAI) 4-day L4 Global 1km SIN Grid No
MCD43A1 MODIS/Terra+Aqua BRDF/Albedo Model Parameter 16-Day L3 Global 500m SIN Grid No
MCD43A2 MODIS/Terra+Aqua BRDF/Albedo 16-Day L3 Global 500m SIN Grid No
MCD43A3 MODIS/Terra+Aqua Albedo 16-Day L3 Global 500m SIN Grid No
MCD43A4 MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 500m SIN Grid No
MCD43B1 MODIS/Terra+Aqua BRDF/Albedo Model-1 16-Day L3 Global 1km SIN Grid No
MCD43B2 MODIS/Terra+Aqua BRDF/Albedo 16-Day L3 Global 1km SIN Grid No
MCD43B3 MODIS/Terra+Aqua Albedo 16-Day L3 Global 1km SIN Grid No
MCD43B4 MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 1km SIN Grid No



TerraLook Collections Data Description Download
Available
TL ASTER (2000 - present) TerraLook Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) (2000 - present) No *
TL GLS2010 (2008 - 2011) TerraLook Global Land Survey 2010 Landsat 5 TM & 7 ETM+ (2008-2011) No *
TL GLS2005 (2003 - 2008) TerraLook Global Land Survey 2005 Landsat 5 TM & 7 ETM+ (2003-2008) No *
TL GLS2000 (1999 - 2003) TerraLook Global Land Survey 2000 Landsat 7 ETM+ (1999-2003) No *
TL GLS1990 (1984 - 1997) TerraLook Global Land Survey 1990 Landsat 4 & 5 TM (1984-1997) No *
TL GLS1975 (1982 - 1987) TerraLook Global Land Survey 1975 Landsat 4-5 MSS (1982-1987) No *
TL GLS1975 (1972 - 1983) TerraLook Global Land Survey 1975 Landsat 1-3 MSS (1972-1983) No *
* TerraLook Collection images are not directly downloadable, but the processed image collection may be downloaded at no charge following a processing delay.

Note: Download available denotes that the actual data product is available for download at no charge through GloVis.


About Browse Images

All of the USGS browse images are subsampled JPEGs of selected bands from the actual sensor data. The band combination, stretch, and resolution of the browse vary according to each sensor. Scenes from the Landsat archive are processed to Standard Terrain Correction (Level 1T). While some scenes do not have the ground-control or elevation data necessary to perform L1T correction, the best level of correction is applied. More details at the Landsat page, under Product Information.

Within the Browse Image Viewer, the browse images are displayed in Lambert Azimuthal Equal Area Projection unless otherwise noted.

NOTE: Because the browse images for some datasets are processed from raw or Level 0 uncorrected data, the positional accuracy of the scenes can only be expected to be accurate within a few pixels. These browse images are not intended for analytical use, but only as a visual scene selection aid.

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Frequently Asked Questions (FAQs)

Q: How is the cloud cover calculated, and why are some scenes cloudy when the cloud cover is reported to be 0%?

A: The cloud cover index is an automated calculation which may provide a useful estimate, but the algorithm is not always accurate when it encounters snow, ice, water, or other unusual scene content. Haze, thin clouds, and small clouds ("popcorn") can frequently be missed in the cloud cover assessment.

Q: Why are some Landsat scenes "missing"?

A: GloVis displays most of the Landsat scenes, but some are not available through this tool. Please refer to the Landsat FAQ for details on searching for and ordering Landsat scenes.

Q: Can I find the actual gain and bias values for a Landsat scene on GloVis?

A: No, you will not find the actual gain and bias values on GloVis. Gain and bias values can only be obtained when actual data is ordered because to gain and bias values are only available in the final product metadata. These coefficients can then be applied with the DN values within the imagery to convert to accurate radiance values.

For information on gain and bias values, please refer to the Landsat FAQ.

Q: Where can I find out more about Landsat MSS, TM, ETM+, and OLI data?

A: Please refer to the Landsat FAQ for information about all of the Landsat missions.

Q: Does red in ASTER images always represent vegetation?

A: Red colors in the VNIR images generally represent vegetation.

Q: Why do some ASTER images have a 'smeared' line in them?

A: Images with smeared lines generally indicate a temporary detector-related problem during the course of acquisition. They are infrequent and irreversible. They generally result in a data gap on the image. Depending on the amount of area affected and your application needs, you may want to find an alternative scene.

Q: Why are some ASTER images completely white?

A: Completely white, or nearly completely white, browse images exist because saturated cloud cover leaves little to no useful image data.

Q: Why are some ASTER L1A images missing?

A: If you are unable to find ASTER L1A images in GloVis, please try Reverb (http://reverb.echo.nasa.gov/reverb).

Q: Why does the EO-1 Scene ID list a path and row that is different than the path and row of the center part of the image?

A: EO-1 imagery is collected based on a targeted center point. The path and row listed in the Scene ID represents when the EO-1 instruments began imaging, even though the target point may fall in the next row. In the diagram below, the coordinates for Target 2 fall within the WRS row below that of the coordinates for Target 1. However, since the instruments began imaging Target 1 and Target 2 in the same path/row, both images would have the same Target WRS path and Target WRS row in the Scene ID. EO-1 is not able to image both targets on the same date; therefore, the difference in the Scene IDs would show up in the Julian day of acquisition.

Image explaining issue with
    EO1 targets.

Q: If NAPP scenes cover a square area, why do they appear rectangular in GloVis?

A: NAPP browse images are provided in a geographic projection with pixels that are not square in geographic coordinates. To be properly displayed in GloVis, the browse images are resized to make the pixels square in geographic coordinates. The result is that the browse images end up being rectangular.

Q: When I download a NALC dataset, will I receive all of the images for that triplicate?

A: Yes, all of the images available in the NALC triplicate will be included in the downloaded product, even though only a single browse image is displayed in GloVis.

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Several application-specific questions are answered on the Image Viewer Help User Guide page.


Contact Customer Services

Customer Services
U.S. Geological Survey
Earth Resources Observation & Science Center (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001

Tel: 800-252-4547
Tel: 605-594-6151
Fax: 605-594-6589
Email: custserv@usgs.gov
Business Hours: Monday thru Friday, 8:00 a.m. to 4:00 p.m., central time

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Page Last Modified: 27 October 2014