USGS Pluto Relief

_images/usgs.png
_images/GMT_pluto_relief.jpg

Usage

You access the global New Horizon relief grid by specifying the special name

@pluto_relief[_rru[_reg]]

This grid contains observed relief measured via altimetry. The following codes for the optional rru and reg are supported (dimensions are listed for pixel-registered grids; gridline-registered grids increment dimensions by one):

Code

Dimensions

Reg

Size

Description

01d

360 x 180

g,p

71 KB

1 arc degree Pluto relief (NH @ 59 km)

30m

720 x 360

g,p

220 KB

30 arc minute Pluto relief (NH @ 29 km)

20m

1080 x 540

g,p

452 KB

20 arc minute Pluto relief (NH @ 20 km)

15m

1440 x 720

g,p

774 KB

15 arc minute Pluto relief (NH @ 15 km)

10m

2160 x 1080

g,p

1.6 MB

10 arc minute Pluto relief (NH @ 9.8 km)

06m

3600 x 1800

g,p

4.2 MB

6 arc minute Pluto relief (NH @ 5.9 km)

05m

4320 x 2160

g,p

6.0 MB

5 arc minute Pluto relief (NH @ 4.9 km)

04m

5400 x 2700

g,p

9.0 MB

4 arc minute Pluto relief (NH @ 3.3 km)

03m

7200 x 3600

g,p

15 MB

3 arc minute Pluto relief (NH @ 2.9 km)

02m

10800 x 5400

g,p

33 MB

2 arc minute Pluto relief (NH @ 2.0 km)

01m

21600 x 10800

g,p

122 MB

1 arc minute Pluto relief (NH @ 1.0 km)

52s

24888 x 12444

p

124 MB

52.07… arc second Pluto relief (NH original)

Note that resolutions 05m and higher are tiled. See Remote Data Sets for more information.

See GMT remote dataset usage for when resolution codes are optional or required. All of these data will, when downloaded, be placed in your ~/.gmt/server directory, with the pluto_relief files being placed in an pluto/pluto_relief sub-directory. If you do not specify a CPT then the default CPT for this dataset (the GMT master @pluto_relief CPT) will be used.

Technical Information

As you see, the 01m and lower resolutions are all derivatives of USGS’ 52.0732883317 arc-second Pluto_NewHorizons_Global_DEM_300m_Jul2017_16bit.tif (Moore_et_al., 2016). We have downsampled it via Cartesian Gaussian filtering to prevent aliasing while preserving the latitude-dependent resolution in the original 52.0732883317 arc sec grid. The full (6 sigma) filter-widths are indicated in parenthesis. Almost all grids are available in both gridline- and pixel-registered formats except the original pixel-registered grid at 52.0732883317 arc-seconds resolution (here called @pluto_relief_52s). Data resolution is 0.25 meter.

Data References

  1. NH: [https://doi.org/10.1126/science.aad7055].