Jules Verne Voyager: What's Old

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What's Old Index:

    newer items: see What's New
    14 Jan 2011: all editions: fix of long-standing [Index] map scaling bug
    9 Jan 2011: Earth & EarthScope: update of NEIC earthquake hypocenter dataset
    4 Jan 2011: Earth & EarthScope: update of earthquake focal mechanisms and moment tensors
    22 Dec 2010: Saturn: update to five inner moons
    1 Nov 2010: Jupiter: New Horizons 60°S—60°N mosaic
    29 Oct 2010: Ron Blakey's PaleoEarth
    22 Oct 2010: Mars's moons update
    14 Oct 2010: Pluto system update
    17 Jun 2010: IAU gazetteer names available
    17 May 2010: update to jovian and saturian moons
    29 Jan 2010: browser popup blocker detection for Voyager [pop-up:] menu
    27 Jan 2010: Mercury update; Uranus and Nepune systems; Pluto; Jupiter's Amalthea; Saturn's Janus; Wikipedia links
    21 Dec 2009: Saturn's Phoebe
    17 Dec 2009: Moon: addition of Chandrayaan-1/Moon Impact Probe (MIP), Chang'e 1, Kaguya, and LCROSS de-orbit impact sites; Enceladus: update to latest Cassini/Voyager composite
    5 Feb 2009: upgrade of computational node in jules system
    26 May 2008: Mars: Phoenix landing site
    2 Jan 2008: Saturn: updated Huygens landing site coordinates on Titan
    19 Sep 2007: link to obtain recent earthquake list from the USGS fixed (again)
    21 Sept 2006: Moon: addition of ESA SMART-1 de-orbit impact site
    6 Apr 2006: update to Jupiter Cassini image dataset
    2 Feb 2006: link to obtain recent earthquake list from the USGS fixed
    23 Dec 2005: new VSS link to Views of the Solar System
    2 July 2005: Saturn and its major moons
    3 Mar 2005: upgrade of computational nodes in jules system
    6 Jan 2005: Earth & EarthScope: large-volume Holocene volcanic eruptions and dates
    4 Jan 2005: Earth & EarthScope: volcano and volcanic areas dataset update
    3 Jan 2005: Earth & EarthScope: recent earthquake dataset
    27 Dec 2004: Earth & EarthScope: NEIC earthquake dataset update
    22 Dec 2004: Earth & EarthScope: Harvard CMT focal mechanism update
    21 Dec 2004: Earth & ILP_GSRM: 2004 World Stress Map
    9 Nov 2004: Earth: update of SeaWiFS grids
    29 Sept 2004: Earth & EarthScope: Holocene and Pleistocene faults
    18 May 2004: Earth: terrestrial impacts update
    7 May 2004: Earth & ILP_GSRM: GSRM version 1.2 update
    24 Feb 2004: Earth, ILP_GSRM, & EarthScope: PB2002 plate boundaries
    13 Feb 2004: Mars: MER-A (Spirit), MER-B (Opportunity), and Beagle 2 sites
    30 Oct 2003: Earth: GPSVEL 1.0
    18 July 2003: Earth: update of SeaWiFS grids
    17 July 2003: Image Gallery, plus Jules Verne Voyager refresh
    1 July 2003: Jupiter and the galilean moons
    19 Jun 2003: Earth & ILP_GSRM: GSRM version 1.1 update
    17 Apr 2003: Earth: EGM96 free air gravity model
    2 Apr 2003: Earth & ILP_GSRM: 2003 World Stress Map
    22 Feb 2003: EarthScope
    11 Dec 2002: Earth: updated list of country names and territorial claims
    3 Dec 2002: Earth: update of SeaWiFS and DMSP grids
    11 Oct 2002: diacritical characters (...finally!)
    19-20 Sep 2002: interim server change
    11 Jun 2002: Earth: 4.9 km/pixel Terra/MODIS composite grids
    10 Jun 2002: Venus: 4.6 km/pixel GxDR grids
    29 May 2002: Mars: areoid and Mars Orbiter Camera mosaic
    28 May 2002: Earth: update of SeaWiFS grids
    14-16 May 2002: new page layout
    9 May 2002: Earth: updated ILP Global Strain Rate Map grids
    26 Apr 2002: Earth: improved topography elevation scales
    19 Jan 2002: Earth: 41-year NEIC earthquake catalog
    21 Dec 2001: Earth: GPSVEL 0.1 and 0.2, "hotspots"
    19 Dec 2001: ILP Global Strain Rate Map
    6 Oct 2001: minor changes to [Index], [Up], and [Down] applet widget buttons
    18 Sept 2001: new server model
    5 July 2001: Earth: more site motion/crustal velocity studies, velocity scaling options
    16 May 2001: Mercury: higher resolution texture underlay grid
    7 May 2001: latitude/longitude lines or grid; distance scale
    20 Apr 2001: new links to GMT
    16 Apr 2001: (preliminary) labeled latitude/longitude grid
    4 Apr 2001: Mars: 32 pixel/degree MOLA data
    2 Apr 2001: "Version 2" rollout (so ... forget what you've seen before!)
    16 Mar 2001: Netscape 6.0 compatibility
    25 Feb 2001: version 2 link to the Planetary Data Systems Welcome to the Planets
    24 Feb 2001: version 2 link to The Nine Planets
    23 Feb 2001: version 2 widget change: [pop-up:]
    2 Feb 2001: version 1 to version 2 cleanup; ver 2 link to Views of the Solar System
    22 Aug 2000: link cleanup
    15 May 2000: Oops!
    19 Apr 2000: Earth: high res color topography grids
    14 Apr 2000: Earth: more high res greytone topography grids
    28 Mar 2000: Earth: experimental high resolution topography grids
    22 Mar 2000: Venus: higher resolution grids
    17 Mar 2000: Mars!
    7 Feb 2000: SENH monuments
    8 Dec 1999: total overhaul: Jules Verne Voyager
    27 Oct 1999: partial recovery; now with Java 1.2 and GMT 3.1
    21 Sept 1998: adding topography with [Redraw] applet button
    14 Aug 1998: WCDA monuments
    5 June 1998: Topography
    29 May 1998: MET stations for ASOS
    8 May 1998: GPS monuments for other centers
    25 Mar 1998: NUVEL 1 tectonic plate boundaries

For more information about our Voyager map tool, contact:   Lou Estey   (louunavco.org)
Last modified: 9 Oct 2014



14 Jan 2011     The long-standing bug where the index map, which is created using the [Index] button or the i=1 option, was not exactly 80% of the specified width (as claimed on Solar System Portal: How to do your own comparative planetology images), is now fixed. This will allow for much easier creation of scale orthographic map images to compare different worlds.

9 Jan 2011     Earth and EarthScope: have been updated with events listed in the NEIC earthquake catalog from 1961 through to the PDE-Q solutions at the end of 2010: over 691000 events.

4 Jan 2011     Addition of new [Moment Tensors] option and update of the dataset for the [Focal Mechanisms] option of Earth and EarthScope, now showing all available CMTs through the end of 2010. The display of both is now ordered by depth so the deeper mechanisms are plotted first so that the shallower mechanisms are "on top" (as one might expect with a plan view).

22 Dec 2010     Update to Saturn's major inner moons Mimas, Enceladus, Tethys, Dione, and Rhea. These include recent enhanced-color mosaics, PIA13423, for each of the these five moons made by Space Science Institute and the Lunar and Planetary Institute showing subtle compositional variations on their surfaces.

1 Nov 2010     Addition to Jupiter of New Horizons/LORRI mid- and central-latitude mosaic by JHU/APL.

29 Oct 2010     New PaleoEarth edition, using datasets kindly provided by Dr. Ron Blakey, Northern Arizona University.

22 Oct 2010     Update to Phobos and Deimos; many thanks to Dr. Phil Stooke for the use of his 2010 mosaic map images of these moons.

14 Oct 2010     Update to Pluto and addition of Pluto's moon Charon. (These processed mosaic images will probably be the best available until the New Horizons spacecraft reaches the Pluto-Charon system, closest approach 14 July 2015.)

17 Jun 2010     All feature names adopted by the International Astronomical Union for worlds supported on Voyager, available through the Gazetteer of Planetary Nomenclature, are now avaiable via the [Features:] menu. See IAU Gazetteer for more information.

17 May 2010     A major update to the datasets of the jovian and saturian moons has been completed.

29 Jan 2010     Javascript code for detection of browser popup blocking has been added. Blocking popups from jules.unavco.org prevents use of the Voyager [pop-up:] menu options. (Note: the [pop-up:] menu was previously called [URL:].)

27 Jan 2010     update of Mercury to include the latest from Messenger flybys (14 Jan 2008, 6 Oct 2008, 29 Sep 2009); addition of Uranus (with moons Ariel, Umbriel, Titania, Oberon, and Miranda) and Neptune (with moon Triton and minor moon Proteus); addition of trans-neptunian object (formerly a planet) Pluto; and addition of minor moons Amalthea and Janus. Also, all worlds now have a Wikipedia link in their [pop-up:] menu — click on the [Wikipedia] menu option.

21 Dec 2009     Phoebe, a small moon of Saturn, has been added.

17 Dec 2009     Moon now has the de-orbit impact sites of India's Chandrayaan-1/Moon Impact Probe (MIP), China's Chang'e 1, Japan's Kaguya, and USA's LCROSS (Centaur upper-stage and SSC); Enceladus now has the latest Cassini/Voyager composite from CICLOPS.

5 Feb 2009     The computational nodes for the jules system have been upgraded to a single Sun Fire X4250 with dual 64-bit 3.16 GHz Intel Xeon processors — each with 4 cores, which will allow for faster image creation and as many as 8 simultaneous multiple users.

26 May 2008     Mars now has the landing site of Phoenix lander — the first successful powered descent soft-landing mission to Mars since the 1976 Viking landers.

2 Jan 2008     Titan now has the updated landing site of ESA Cassini-Huygens probe as an option.

19 Sept 2007     The parser to obtain (nominally) the last week's worth of magnitude 2.5 or larger seismic events on Earth and EarthScope using the [Recent earthquakes] option from the USGS's latest earthquake activity (for past 7 days) had to be updated to match HTML changes on that page. (Apparently, this will be an ongoing problem over time...) The Voyager dataset is still updated every 10 minutes, starting 2 minutes after the hour.

21 Sept 2006     The location of the ESA SMART-1 de-orbit impact site was added to the Moon.

6 Apr 2006     The Cassini image dataset for Jupiter was updated to the newly released composite from the Cassini Imaging Team (Ciclops) available at NASA Planetary Photojournal Catalog Page for PIA07782. This improves the resolution from the previous 0.2° to 0.1°

2 Feb 2006     The link to obtain (nominally) the last week's worth of magnitude 2.5 or larger seismic events on Earth and EarthScope using the [Recent earthquakes] option was changed to a new earthquake activity PHP URL at the USGS. The Voyager dataset is still updated every 10 minutes, starting 2 minutes after the hour.

23 Dec 2005     The [pop-up:] menu option [VSS]Views of the Solar System — now goes to the appropriate English page at LASCO in Germany.

2 July 2005     Voyager versions of Saturn and its major moons: Mimas, Enceladus, Tethys, Dione, Rhea, Titan, and Iapetus, made possible by composite images supplied by Steve Albers (NOAA).

3 Mar 2005     The computational nodes for the jules system have been upgraded to two machines with dual-processor 64-bit 1.6 GHz AMD Opterons, which should allow for faster image creation especially with multiple users. Please let us know if you encounter any difficulties.

6 Jan 2005     Earth and EarthScope: now have a [Large Holocene eruptions] option which will show the sites of large-volume Holocene volcanic eruptions listed on Smithsonian Global Volcanism Program Large Holocene Eruptions page; the dataset has 227 volcanoes. Also, there is a [label eruption dates] option which shows the date(s) of these large eruptions for each volcano; the dataset currently has 572 dates. Note: the eruption date labels only show up on zoomed-in local maps, and some volcanoes have as many as 19 dates listed. You may have to zoom in quite a bit in order to separate the eruption dates of different volcanoes from one another.

4 Jan 2005     Earth and EarthScope: have been updated with the current list of volcanoes and sites of volcanic activity listed at the Smithsonian Global Volcanism Program. The dataset being displayed has 1553 sites of Holocene activity.

3 Jan 2005     Earth and EarthScope: now have a [Recent earthquakes] option which will show (nominally) the last week's worth of magnitude 2.5 or larger seismic events as reported on the USGS earthquake activity list. The Voyager dataset is updated every 10 minutes, starting 2 minutes after the hour.

27 Dec 2004     Earth and EarthScope: have been updated with events listed in the NEIC earthquake catalog through to the Sumatran magnitude 9.0 event on 26 Dec 2004. The dataset being displayed is now over 532000 events starting in 1961.

22 Dec 2004     Earth and EarthScope: have been updated with Harvard CMT catalog focal mechanism solutions through to the current query (on 22 Dec 2004).

21 Dec 2004     Earth and ILP_GSRM: have both been updated with the 2004 World Stress Map.

9 Nov 2004     The SeaWiFS biosphere and land reflectance seasonal images from the SeaWiFS Project have been updated through to Apr/May/Jun 2004.

29 Sept 2004     Earth and EarthScope now have mapped fault traces known or determined to have been active in the Holocene and Pleistocene Epochs (Quaternary Period) (though the datasets currently only cover the western USA).

18 May 2004     Earth has been updated to the 12 May 2004 version of the University of New Brunswick's Earth Impact Database (171 impact sites), plus 3 additional impact sites from the ILP Project III-7 Global Impact Studies Project (Azuara in Spain, Highbury and Sinamwenda in Zimbabwe), plus 3 possible oceanic impact sites (Eltanin, Ewing, and Bedout).

7 May 2004     Earth and ILP_GSRM: have both been updated with Global Strain Rate Map version 1.2 released by SUNY Stony Brook, by Bill Holt and Corné Kreemer. See ILP GSRM homepage (click on the Earth portal image) for more information.

24 Feb 2004     Earth, and the special Voyager editions ILP_GSRM and EarthScope, now have the option of showing the plate boundaries of Peter Bird's PB2002.

13 Feb 2004     Mars now has the landing sites of MER-A (Spirit) and MER-B (Opportunity), as well as the center of planned landing ellipse for Beagle 2.

30 Oct 2003     Earth GPSVEL GPS motion vector set has been updated to version 1.0, which now includes 264 solutions for the western US cordillera, thanks to Rick Bennett and David Lavallee.

18 July 2003     The SeaWiFS biosphere and land reflectance seasonal images from the SeaWiFS Project have been updated through to Apr/May/Jun 2003.

17 July 2003     A new Image Gallery document that gives you an idea of what types of map images you can easily produce yourself with Voyager, plus a minor refresh of the look of the frontend of Jules Verne Voyager and the new embossed Monsieur Verne background on all the document pages.

1 July 2003     Voyager versions of Jupiter and its galilean moons: Io, Europa, Ganymede, and Callisto, made possible by composite images supplied by USGS/Flagstaff and Robert Pappalardo (CU Boulder).

19 Jun 2003     Earth and ILP_GSRM: have both been updated with Global Strain Rate Map version 1.1 released by SUNY Stony Brook, by Bill Holt and Corné Kreemer. See ILP GSRM homepage (click on the Earth portal image) for more information.

17 Apr 2003     Earth has been updated with a EGM96 free air gravity model (0.5° resolution).

2 Apr 2003     Earth and ILP_GSRM: have both been updated with the 2003 World Stress Map.

22 Feb 2003     EarthScope: a special Voyager edition for the EarthScope project (see also Welcome to EarthScope!), showing the locations of existing and proposed PBO, USArray, and SAFOD ground instrumentation sites.

11 Dec 2002     The [Country names] option in the [Features:] menu gives an updated list of country names and territorial claims — and long names now look better as you zoom in. The main reference used was the CIA - The World Factbook 2000 - Appendix F. More individual islands and island groups will be added over time.

3 Dec 2002     SeaWiFS biosphere seasonal images from the SeaWiFS Project have been updated through to Apr/May/Jun 2002; land reflectance seasonal images are updated through to Jul/Aug/Sep 2002. DMSP/OSL "nightlight" images have been upgraded to about 2.5 km resolution.

11 Oct 2002     Finally have diacritical characters working, which will greatly improve the looks of some volcano names, etc. (If you spot a country, city, or other name which is missing a diacritical mark on a character, please let us know and it will be fixed.)

19-20 Sept 2002     A switch to a new interim jules server which uses a new queueing mechanism to hand off the map creation jobs. Hopefully, this will reduce or eliminate the cases where users had no map created. (Sorry, the switch didn't go as smoothly on the 19th as it could have.)

11 June 2002     The Terra satellite/MODIS sensor image composite grid have been added for Earth. (Resolution ~4.9 km/pixel, though this will improve as soon as we get the high resolution TIFF images.)

10 June 2002     Four new grids have been added for Venus, from the Magellan GxDR cdrom datasets: planetary radius (topography), surface emissivity, surface reflectivity, and surface slope. All are at about 4.6 km/pixel resolution (from the sinusoidal GxDR images).

29 May 2002     The areoid (martian geoid) undulations wrt an ellipsoid of revolution (3396x3378.2 km radii) and Malin Science Science Systems's Mars Global Surveyor/Mars Orbiter Camera (MGS/MOC) Wide Angle Geodesy Campaign Mosaic (camera red band shown as a greytone) are now options on Mars.

28 May 2002     SeaWiFS biosphere seasonal images from the SeaWiFS Project have been updated through to Jan/Feb/Mar 2002. Also, SeaWiFS land reflectance 4-km resolution images have been added.

14-16 May 2002     New page layout: Jules Verne Voyager, and original General document has been split into:

Plus new

(e.g. ideas how to use Voyager for comparative planetology). Plus new layout for the [Features:] and other menus for each world, e.g. Earth Features Help. Also the menu items on Earth have been rearranged to collapse GPS related subjects (crustal motion vectors, monument positions) to [GPS/other:].

In an effort to keep What's New new, older items (prior to 19 Dec 2001) have been moved to What's Old.

9 May 2002     The ILP Global Strain Rate Map grids for Earth have been updated. These now reflect the official ILP GSRM version 1.0 released by SUNY Stony Brook, by Bill Holt and Corné Kreemer. See ILP GSRM homepage (click on the Earth portal image) for more information.

26 Apr 2002     The color and greytone elevation scales for Earth have been improved. (Remember to use the [ancillary] button under the [pop-up:] menu when color or greytone topography is selected to easily retrieve the scales.)

19 Jan 2002     Update for Earth: [Features:] selection of [Earthquakes] now accesses a 41-year NEIC catalog of over 442000 events from 1961 through mid-Dec 2001.

21 Dec 2001     New additions for Earth: Site motions (horizontal crustal velocities) for GPSVEL 0.1 and 0.2; U. Texas "hotspot" positions.

19 Dec 2001     A specialized version for Earth, developed in cooperation with SUNY Stony Brook for the International Lithosphere Project (ILP) Global Strain Rate Map (GSRM): ILP GSRM. This includes the most of the data sets and model results of the current GSRM, including being able to view horizontal crustal lithosphere velocities in different reference frames. (This was presented to the ILP GSRM Steering Committee at the Fall 2001 AGU, San Francisco, on 12 Dec 2001.) See also the ILP GSRM homepage (click on the Earth portal image) for more information.

6 Oct 2001     The applet buttons [Index] (and its toggle state [Local]), [Up], and [Down] are now only highlighted when they are able to function. For example, [Index] and [Up] become highlighted when you are in on local zoomed map, and then you can either create an index map or go back up the zoom stack by clicking on these buttons. (This is not a change in functionality, but does provide better feedback to the user on which options are available during the interactive operation of Voyager.)

18 Sept 2001     We have switched over to a distributed server model, currently running a 1.5 GHz P4 machine for map creation as a test. The time for creation of zoomed texture underlay grids should be improved by a factor of 2 or more. Please let us know if you encounter any difficulties.

5 July 2001     More GPS site motion/crustal velocity solution studies have been added, for the eastern Mediterrean, central Asia, western Pacific region, and western USA (Alaska and Oregon), plus more velocity scaling options (x1 = default; x2, x5, x10, x20, and x50). Be sure to look for the new entries in Earth Readme and Information Sources.

16 May 2001     The general image of Mercury is now based on a 32 pixel/degree resolution shaded relief map (based on USGS I-1149, 1979).

7 May 2001     Immediately under [--image overlays--] under the [Features:] menu are four options to select/deselect latitude/longitude lines, a latitude/longitude intersection grid, either with optional labeling, plus an optional distance scale. See General Readme: To add/delete features for more information.

20 Apr 2001     Links to GMT have been updated.

16 Apr 2001     A preliminary addition: labeled longitude/latitude grids; select option [Labeled lon/lat grid] under [Features:] menu (still working of autoselection of colors for different grids, labeling on index map, etc., so don't expect a final version yet)

4 Apr 2001     The MOLA images for Mars have been updated to 32 pixels/degree resolution.

2 Apr 2001     Voyager "version 2" has now been rolled out as the default. Among the changes:

  • Higher-resolution DEM texture underlays for the Earth (1/100°) and Mars (1/16°)
  • more geophysical texture underlays for Earth, Mars, Venus, and the Moon (e.g. geoid, gravity, etc.)
  • more geophysical overlay info for the Earth (e.g. terrestrial impact sites, large igneous province outlines, etc.)
  • manned and unmanned mission sites on the Moon, Venus, and Mars; selectable under new [Missions:] menu on those world URLs (see also new Missions Readme)
  • [ancillary] under [pop-up:] to bring up ancillary data pages (see 23 Feb 2001 update)
  • [VSS], [9-P], and [PDS] under [pop-up:] to bring up other Web sites homepages on the selected world (see 23 Feb 2001, 24 Feb 2001, and 25 Feb 2001 updates)
  • improved applet behavior, especially with different world URLs on different browser pages (works best with Netscape 4.5 or higher: use Netscape's {< Back} or {Forward >} buttons to return to a different world URL in the exact state you left it); great for comparative planetology!

Also, the GMT engine has been upgraded to version 3.3.6, so we'll be able to add even more capability in the future.

16 Mar 2001     We finally figured how to make Voyager compatible with Netscape 6.0.

25 Feb 2001     With the version 2 applet, under the [pop-up:] choice menu

  • [PDS] — link to Caltech/JPL's Planetary Data System Welcome to the Planets for the selected world (moons don't have their own link, so point to the home world)

24 Feb 2001     With the version 2 applet, under the [pop-up:] choice menu

23 Feb 2001     With the version 2 applet, the [Save image] button now is under the new rightmost [pop-up:] choice menu, in addition to:

  • [ancillary] — if relevant, brings up one or more additional Web pages of ancillary information depending on what you have selected
  • [VSS] — link to Calvin Hamilton's Views of the Solar System for the selected world

Links to ancillary information is a relatively new feature of Voyager, with new links continually being added. These may include color keys, links to other homepages, data archives, etc.

2 Feb 2001     Happy Groundhog's Day! Due to a change from version 1 to version 2 of Voyager, the initial texture underlay grid that would show up for the Moon and Mercury have not been correct for a while (due to a change in the way the texture underlay grids are accessed between the version 1 and version 2 applets). This has now been fixed. The version 2 applet also has a [VSS] button on the upper-right, which does a direct access to the primary server for Calvin Hamilton's Views of the Solar System for that world — English version...and just ignore the commercial stuff at the top. It's a handy summary page for ancillary information and additional Web links for each world.)

22 Aug 2000     Various links on the General Readme and What's New pages were wrong. Hopefully, all is well now.

15 May 2000     A bug was accidentally introduced on 12 May while working on getting the GMT portion set up for testing with GMT versions post-3.1, which caused 3-byte RGB grids to be interpreted as 1-byte greytone grids. All is well now.

19 Apr 2000     There are now three experimental color grids of ARC Science Simulations' 16-bit version of GTOPO30, Sandwell and Smith bathymetry v6.2, and various polar bathymetry (re-fit to 100 pixels/degree resolution) currently under the [Features:] (applet) menu as

  • [Exp grid #4]: ocean bathymetry, deepest to shallowest is mapped dark-blue to cyan; continents, coastal to Everest is mapped dark-green->light green->brown->peach->red->lavender->white (except regions below sea level, which are mapped the same as bathymetry), based on a non-linear mapping of elevation to RGB value
  • [Exp grid #5]: color shaded relief; a non-linear blending of #2 and #5 (a color-intensity version of #3)
  • [Exp grid #6]: ARC's Face of the Earth ™ for land above sea level with shaded relief, like grid #5 below sea level

14 Apr 2000     There are now three experimental greytone grids of ARC Science Simulations' 16-bit version of GTOPO30, Sandwell and Smith bathymetry v6.2, and various polar bathymetry (re-fit to 100 pixels/degree resolution) currently under the [Features:] (applet) menu as

  • [Exp grid #1]: ocean bathymetry, deepest to shallowest is mapped black to white; continents, coastal to Everest is mapped black to white (except regions below sea level, which are mapped the same as bathymetry), based on a non-linear mapping of elevation to greytone level
  • [Exp grid #2]: shaded relief, constructed using GMT, with illumination from 300° clockwise from north (roughly WNW); really a roughness map
  • [Exp grid #3]: a non-linear blending of #1 and #2, which brings out both the elevation and shaded relief characteristics

28 Mar 2000     Two experimental greytone grids of ARC Science Simulations' 16-bit version of GTOPO30, Sandwell and Smith bathymetry v6.2, and various polar bathymetry (re-fit to 100 pixels/degree resolution) currently under the [Features:] (applet) menu as [Exp grid #1] and [Exp grid #2]. For both: ocean bathymetry, deepest to shallowest is mapped black to white; continents, coastal to Everest is mapped black to white (except regions below sea level, which are mapped the same as bathymetry). Grid #1 uses a linear mapping, grid #2 uses a non-linear mapping.

22 Mar 2000     A higher resolution grid (~1/14°) was found at the JPL image archive for Venus, still from Magellan synthetic aperture radar composites with color enhancement based on Soviet Venera 13 and 14 surface images. Also, a grey-tone version in now available in the [Features:] (applet) menu, also at ~1/14° resolution.

17 Mar 2000     Three more worlds (well, one world and two worldlets) to explore: Mars and its moons Phobos and Deimos. (Remember: you might have to do a <Shift> (keyboard) {Reload} (browser) to reload the Voyager applet when changing from world to world to reset the widgets.)

7 Feb 2000     Addition of GPS monuments for NASA's Solid Earth Natural Hazards (SENH) program.

8 Dec 1999     A total overhaul for the map tool, now renamed the Jules Verne Voyager, including:

  • new Web page design
  • more features for Earth, including ARC Science Simulations' Face of the Earth ™ (natural surface colors of the Earth, pole-to-pole, cloud-cover eliminated, snow-cover minimized, 100 pixels/degree resolution)
  • improved zoom and pan algorithm
  • capability for adding other planetary bodies
  • direct URL to specify a zoomed-in map directly
  • new server (450-MHz dual-Pentium Xeon)

We hope you enjoy it.

27 Oct 1999     Partial recovery from our disk failure in Jan 1999, and migration to compiling with Java 1.2 (though still using the original AWT event model) and using GMT version 3.1. Some enhancements (mostly bug fixes) that were done in Oct 1998 still have not been re-done.

21 Sept 1998     A logic bug prevented topography (color or grey-tone) to be added to any zoom map using the [Redraw] button on the applet. (Zooming from the level 0 map with with topography already on was OK.) This has been fixed.

14 Aug 1998     Monument positions of the GPS permanent stations for the Western Canada Deformation Array (WCDA) were added.

5 June 1998     Topography for the entire world in now available. We have switched from the ETOPO5 digital map to DS759.2, which is still at 5' resolution but fixes various problems that are present in ETOPO5. At the present time, the topography can be viewed as

  • a color varying map: dark blue in deep ocean to cyan just below sea level, green just above sea level, through yellow, orange, red, grey, brown, white at the highest elevations.
  • a grey tone map: slope only

Both versions of the topography are illuminated by a light source from the local west.

At the present time, topography is only displayed on the level 0 Plate Carrée and the local Lambert zoom maps, and is absent from the index maps. These are some benchmark times for map preparation with topography (on our 180 MHz Pentium Pro server):

  • Africa, color topography: ~35 sec of CPU time
  • Australia, color topography: ~35 sec of CPU time
  • area including a pole from Plate Carrée, color topography: ~75 sec of CPU time

The rest of the delay is transfer time from our server to your browser.

29 May 1998     The positions of the U.S. ASOS MET stations were added.

8 May 1998     GPS monument positions were added for CDDIS, NGS/CORS, SCEC, SOPAC, BARD, PANGA. For more information, see Information Sources: GPS monuments.

25 March 1998     The NUVEL 1 model for the tectonic plates of the Earth were added, and are drawn in cyan. These will appear by default, but can be removed by going to the applet [Features:] menu and clicking on [Tectonic Plates], or by hitting the keyboard <F1> key.

 


Comments, questions, problems about Jules Verne Voyager? Send mail to   Lou Estey   (louunavco.org)


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