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Global Mosaics of Mercury

A variety of global mosaics of Mercury's surface are available. As the MESSENGER mission progresses and new images are released to NASA's Planetary Data System (PDS), new mosaics will also be available. When downloading, please keep in mind that the file size for some of the high-resolution mosaics can be quite large. For information regarding the use of MESSENGER mosaics, see the image use policy.

Mosaic with 100% Coverage of Mercury's Surface

At the very end of 2012, MESSENGER obtained the final image needed to view 100% of Mercury's surface under daylight conditions. The mosaics shown here cover all of Mercury's surface and were produced by using the monochrome mosaic released by NASA's Planetary Data System (PDS) on March 8, 2013, as the base. See the section below for more information about the PDS mosaic product.

To fill the area near the north pole, the PDS product was trimmed northward of 83°N and an average mosaic that extended from 82.5°N to 90°N was used, averaging the 0.5° latitude overlap between the PDS mosaic and the average north polar mosaic. To fill the area near the south pole, the PDS product was trimmed southward of 85.5°S and an average mosaic that extended from 85°S to 90°S was used, again averaging the 0.5° latitude overlap. Any remaining gaps in the global mosaic were filled by using images obtained in support of the high-incidence imaging campaign. The global maps are centered at 0° longitude in simple cylindrical projection. The polar mosaics are in polar stereographic projections that extend to 65° north or south latitude, with 180° longitude at the top of the north polar mosaic and 0° longitude at the top of the south polar mosaic.

Digital Elevation Model of Mercury's Northern Hemisphere

The latest digital elevation models (DEM) are now available in the PDS! Click here to access them. Older versions of the DEM are available in the table below.

March 8, 2013 DEM Details

png

Float32 GeoTIFF

Float32 NETCDF .grd

Polar Stereographic to 75°N at 1 km/pixel

600 KB

6.6 MB

6.6 MB

Polar Stereographic to 55°N at 2 km/pixel

950 KB

9.5 MB

9.5 MB

Equidistant Cylindrical from 4°S to 90°N at 1 km/pixel

10.4 MB

247 MB

247 MB


Mosaics Using Images from NASA's Planetary Data System (PDS)

These mosaics were created using MESSENGER orbital images and were released by NASA's Planetary Data System (PDS). The images in the mosaics cover the first two years of MESSENGER orbital operations and include a monochrome global mosaic, an 8-color global mosaic, and a higher resolution 3-color mosaic of the northern hemisphere.

The monochrome mosaic is composed of MDIS Narrow Angle Camera (NAC) images and WAC images acquired in the filter centered at 750 nm. This mosaic was last updated on March 8, 2013.

The 8-color global mosaic is comprised of 8 narrow-band color filters of the MDIS Wide Angle Camera (WAC), while the 3-color northern hemisphere mosaic provides higher resolution but only in 3 of the narrow-band filters. Both products below are the latest as of March 7, 2014. Placing the 1000-nm, 750-nm, and 430-nm filters in the red, green, and blue channels, respectively, produced the enhanced-color mosaics available below. Full resolution global mosaics of each of the narrow-band color filters as well as mosaics for the emission, incidence, phase, observation ID, and MDR metric are also available individually below. Visit the PDS for access to mosaics and for documentation.

In all mosaics, images are selected and prioritized with different considerations of resolution, solar incidence angles, and emission angles. The higher priority images end up on the 'top.' All mosaics can be explored interactively using ACT-REACT QuickMap. The mosaics are available for download below in png or geotiff formats. The geotiff file sizes can be quite large, which should be taken into account when downloading. The polar mosaics are in polar stereographic projections, with 180° longitude, 65° latitude at the top center of the north polar mosaic and 0° longitude, -65° latitude at the top center of the south polar mosaic. The global or hemisphere mosaics are in a simple cylindrical projection, centered on 0° latitude and 0° longitude.

Global Mosaic

  • Download 2.5 km/pixel png file (21 MB)
  • Download 1 km/pixel png file (127 MB)
  • Download 250 m/pixel png file (865 MB) (NOTE: Large file. If you have difficulty opening this file, right click for options and save to your computer.)
  • Download 250 m/pixel geotiff file (1.1 GB) (NOTE: Large file. If you have difficulty opening this file, right click for options and save to your computer.)

North Polar Mosaic

South Polar Mosaic

Global Mosaic in 8-Color

Download individual bands, 665 m/pixel geotiff files (1.1 GB each)

(These are uncompressed 32-bit floating point files. For ENVI users, choose "edit header" on the file, then "edit attributes", then "Data Ignore Value" and set it to -3.40282265508889992e+38.)


North Polar Mosaic in 8-Color

South Polar Mosaic in 8-Color

3 color north hemisphere thumbnail

Northern Hemisphere Mosaic in 3-Color

 

Download individual bands, 332 m/pixel geotiff files (~5 GB each)
(These are uncompressed 32-bit floating point files. For ENVI users, choose "edit header" on the file, then "edit attributes", then "Data Ignore Value" and set it to -3.40282265508889992e+38.)


North Polar Mosaic in 3-Color thumbnail

North Polar Mosaic in 3-Color

Older mosaics that were created previously using MESSENGER orbital images that were released by the PDS are still available at the links below:

Mosaic Details

September 8, 2011: PDS Release

March 8, 2012: PDS Release

September 7, 2012: PDS Release

March 8, 2013: PDS Release

Global Mosaic, 2.5 km/pixel png file

11 MB

20 MB

20 MB

21 MB

Global Mosaic in 8-Color, 2.5 km/pixel png file

     

14 MB

Global Mosaic, 1 km/pixel png file

62 MB

122 MB

122 MB

127 MB

Global Mosaic in 8-Color, 1 km/pixel png file

     

144 MB

Global Mosaic, 250 m/pixel png file

392 MB

828 MB

828 MB

865 MB

Global Mosaic, 250 m/pixel geotiff file

10GB (NOTE LARGE FILE SIZE!)

10GB (NOTE LARGE FILE SIZE!)

10 GB (NOTE LARGE FILE SIZE!)

1.1 GB

Global Mosaic in 8-Color, 665 m/pixel png file

     

261 MB

Global Mosaic in 8-Color, 665 m/pixel geotiff file

     

273 MB

North polar mosaic, 250 m/pixel png file

31 MB

50 MB

50 MB

 

North polar mosaic, 250 m/pixel geotiff file

300 MB

300 MB

300 MB

 

North polar mosaic, 166 m/pixel png file

     

107 MB

North polar mosaic, 166 m/pixel geotiff file

     

132 MB

North Polar Mosaic in 8-Color, 665 m/pixel png file

     

22 MB

North Polar Mosaic in 8-Color, 665 m/pixel geotiff file

     

23 MB

South polar mosaic, 250 m/pixel png file

16 MB

35 MB

35 MB

 

South polar mosaic, 250 m/pixel geotiff file

300 MB

300 MB

300 MB

 

South polar mosaic, 166 m/pixel png file

     

71 MB

South polar mosaic, 166 m/pixel geotiff file

     

102 MB

South Polar Mosaic in 8-Color, 665 m/pixel png file

     

15 MB

South Polar Mosaic in 8-Color, 665 m/pixel geotiff file

     

10 MB


Enhanced Color Mosaic

low resolution global viewThis enhanced color mosaic was produced by using the color mosaic released by the PDS on March 8, 2013, as detailed in the previous section, and overlaid on the 100% coverage monochrome mosaic, detailed at the top of this page. The color combination places the second principle component in the red channel, the first principle component in the green channel, and the ratio of the 430 nm/1000 nm filters in the blue channel. The mosaic is in simple cylindrical projection, centered on 0° latitude and 180°E longitude, at 3.74 km/pixel. Visit this featured image page for additional information about the colors. Click here to download the mosaic [25 MB].

Low-resolution Global View

low resolution global viewThis mosaic, released October 28, 2011, covers >99.9% of Mercury's surface. The mosaic is made primarily of MDIS orbital images acquired as part of the surface morphology base map. For additional information about this mosaic, visit this featured image page. This mosaic is available at a resolution of 2.5 km/pixel. Click here to download the png format file (13.5 MB).

 

Map-A-Planet Mosaic Using Images Acquired Prior to MESSENGER's Orbital Operations

map-a-planet mosaicThis global mosaic was created in 2009 by using images from MESSENGER's three Mercury flybys and from the Mariner 10 mission in 1974-75. Explore this high-resolution global mosaic of Mercury's surface and download your own Mercury image mosaic at the U. S. Geological Survey Map-a-Planet website.


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