Ben Horner-Johnson's GMT & Geophysics Links
last updated: 2009-DEC-18

GMT Software:


GMT-3.4.6: http://gmt.soest.hawaii.edu/gmt/gmt_download.html
GMT-4.5.1: http://gmt.soest.hawaii.edu/gmt/gmt_download.html
GMT Bug Notes: http://gmt.soest.hawaii.edu/gmt/gmt_bugs.html
GMT Installation: http://gmt.soest.hawaii.edu/gmt/gmt_install_form.html


GMT for MacOS X: http://fink.sourceforge.net     install fink, type: "fink install gmt"
GMT for Win-NT: ftp://www.geophysics.lanl.gov/pub/gmt/gmt4nt.html
GMT for OS/2: http://www.cybermesa.com/~acogbill/gmt/gmt4os2.html
     or http://hobbes.nmsu.edu/pub/os2/apps/graphics/
     or http://www.leo.org/pub/comp/os/os2/leo/graphics/index.html


netCDF: ftp://unidata.ucar.edu/pub/netcdf/netcdf.tar.Z


Front Ends:
unix: iGMT (Tcl/Tk) http://www.seismology.harvard.edu/~becker/igmt/
another Tcl/Tk front-end http://www.com.univ-mrs.fr/ssc/info/prog_com/
Win9x/NT: Win4GMT http://www.icm.csic.es/geo/gma/geo6es.html
Mirone http://w3.ualg.pt/~jluis/mirone/
M_GMT (beta version) http://w3.ualg.pt/~jluis/m_gmt

GMT Documentation:

GMT man pages: http://gmt.soest.hawaii.edu/gmt/gmt_man.html
GMT supplemental man pages: http://gmt.soest.hawaii.edu/gmt/gmt_suppl.html
GMT Tutorial: http://gmt.soest.hawaii.edu/gmt/doc/html/tutorial/tutorial.html
GMT Technical Reference & Cookbook: http://gmt.soest.hawaii.edu/gmt/doc/html/GMT_Docs/GMT_Docs.html
GMT color palettes: http://www.seismology.harvard.edu/~becker/igmt/data/schemes.pdf

GMTHELP archives:

Official Archive: http://listserv.hawaii.edu/archives/gmt-help/
Eduardo A. Suárez: 1995-1998 http://www.fcaglp.unlp.edu.ar/~esuarez/gmt/

GMTHELP via NNTP:

 Server: news2.sinica.edu.tw    Group: gis.gmtlist
 Server: new.gmane.org    Group: gmane.comp.gis.gmt.user


ONLINE DATASETS:

1 x 1 degree DEM (Digital Elevation Model):

http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html


AVHRR level 1B data:

http://www.mtv.sai.jrc.it/projects/fire/home.html   Broken Link?

http://www-nsidc.colorado.edu/data/avhrr/


Bathymetry:

ETOPO5: 5 minute grid, global topography/bathymetry

ftp://www.ngdc.noaa.gov/MGG/relief/reliefcd/SEARCH/   Entire database.

http://sunquakes.geol.binghamton.edu/faculty/jones/etopo5.zip

http://www.ncgia.ucsb.edu/pubs/spherekit/platforms.html    [netCDF format]

ETOPO2: 2 minute grid, global topography/bathymetry (integer dataset)

http://dss.ucar.edu/datasets/ds759.3/

ETOPO2: version 2, 2 minute grid, global topography/bathymetry (COARDS netcdf)

http://www.ngdc.noaa.gov/mgg/global/seltopo.html   Select parts of database.

http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO2/ETOPO2v2-2006/ETOPO2v2c/netCDF/

GEBCO:  GEneral Bathymetric Chart of the Oceans

http://www.ngdc.noaa.gov/mgg/gebco/gebco.html

NGDC: National Geophysical Data Center

http://www.ngdc.noaa.gov/mgg/bathymetry

NOS: National Ocean Service:

http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html

Satellite altimetry:

http://www.ngdc.noaa.gov/mgg/announcements/announce_predict.html

Smith & Sandwell, 1997 seafloor topography: 2 minute grid, measured & estimated topo, 72S to 72N

http://topex.ucsd.edu/marine_topo/mar_topo.html

ftp://topex.ucsd.edu/pub/global_topo_2min/    topo_7.2.img and topo_8.2.img

TerrainBase: 5 minute grid, global topography/bathymetry

http://www.ngdc.noaa.gov/mgg/global/seltopo.html

http://gphsrv1.geophys2.uni-bremen.de/~jgriegel          [netCDF  format]

Regional:

South Hampton Oceanography Center

http://www.soes.soton.ac.uk/

Borders:

Digital Chart of the World:

http://ortelius.maproom.psu.edu/dcw/

http://www.maproom.psu.edu/dcw/

http://www.mobilegeographics.com/downloads/st_cntry_bndrs.tar.gz      GMT multi-segment file format

http://cires.colorado.edu/~braup/data/st_cntry_bndrs.tar                          GMT multi-segment file format

China

http://sedac.ciesin.columbia.edu/china/admin/bnd90/bnd90.html

US-Canada border

http://www.fcc.gov/oet/info/maps/uscabdry/uscabdry.html

http://www.fcc.gov/oet/info/maps/uscabdry/ibccan.zip


Cities:

http://www.ecf.toronto.edu:80/~mao/

http://www.astro.ch/atlas/atlquest-eng.shtml

CIA World Fact Book

http://www.odci.gov/cia/publications/factbook/index.html

Locations/Populations/etc

http://ftp.census.gov/geo/www/gazetteer/places.html

Heaven's Above:

http://www.heavens-above.com/countries.asp

United Nations Statistics Division (capitals, 100000+ residents)

http://www.un.org/Depts/unsd/

United States NIMA:

http://164.214.2.59:80/gns/html/cntry_files.html

http://gnpswww.nima.mil/geonames/GNS/index.jsp


Climate and Weather

Live Access to Climate Data:

http://usjgofs.whoi.edu/las/jglas.html

OGIMET - Weather Information Service, Global Forecast System:

http://www.ogimet.com/home.phtml.en     [English]

http://www.ogimet.com/home.phtml.en     [Español]

SPECMAP:

http://www.ngdc.noaa.gov/mgg/geology/specmap.html

World Ocean Atlas:

http://www.nodc.noaa.gov/OC5/data_woa.html


Coastlines:

Global:

GSHHS: Global Self-consistent Hierarchical High-resolution Shoreline Database:    [used in GMT]

http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html

Regional:

Antarctic Digital Database:

http://www.nerc-bas.ac.uk/public/magic/add_home.html      [must register]
ftp://ice.geo.ua.edu/pub/sak/add.tar.gz                                 [ digitized by Sridhar Anandakrishnan]

BAGIS Project: San Francisco Bay Area

http://www.regis.berkeley.edu/bagis/metadata/noaasfshore.html

NOAA Coastal Services Center High-resolution Digitial Shoreline [US]:    [.SHP or .e00 or .MIF or SDTS]

http://www.csc.noaa.gov/products/shorelines/digdata.htm

NOAA Medium Resolution Digital Vector Shoreline [US]:        [.GEN or .BNA or .e00 formats]

http://seaserver.nos.noaa.gov/projects/shoreline/shoreline.html

USGS Coastline Extractor:

http://rimmer.ngdc.noaa.gov/coast/getcoast.html

Color palettes:

The GMT color schemes:

http://earth.uni-muenster.de/~thoma/GMT/cpt.ps

http://www.seismology.harvard.edu/~becker/igmt/data/schemes.pdf

ColorBrewer: software that generates RGB values

http://www.personal.psu.edu/faculty/cab38/ColorBrewer/ColorBrewer_intro.html

Color Palette City: A collection of color palettes for GMT

http://cpt-city.org.uk/


Datum conversions:

http://www.ordsvy.gov.uk/services/gps-co/50000026.pdf

http://www.anzlic.org.au/icsm/gdatm/

ftp://164.214.2.65/pub/gig/tr8350.2/wgs84fin.pdf

http://164.214.2.59/GandG/wgs84dt/


Earthquake Catalogs:

CNSS: Council of the National Seismic System

http://quake.geo.berkeley.edu/cnss/

IRIS: Incorporated Research Institutions for Seismology

http://www.iris.washington.edu/FORMS/event.search.form.htm

NGDC: Significant Earthquake Database

http://www.ngdc.noaa.gov/seg/hazard/sig_srch.shtml

USGS: National Earthquake Information Center

http://wwwneic.cr.usgs.gov/

http://neic.usgs.gov/neis/epic/epic.html

USGS: Weekly reports

http://quake.wr.usgs.gov/QUAKES/WEEKREPS/weekly.html


Fault databases:

ftp://alum.wr.usgs.gov/pub/map/ascii                         Link may be down

http://geohazards.cr.usgs.gov/eq/faults/WUSfaults     Western US except CA and NV

ftp://ghtftp.cr.usgs.gov/pub/hazmaps/faults/                United States


Focal mechanisms:

 http://www.globalcmt.org/CMTsearch.html Harvard CMT catalogue
 http://geohazards.cr.usgs.gov/ USGS (based on NEIS)
 ftp://gldfs.cr.usgs.gov/pub/momten/ USGS

Geographic Place Names:

http://164.214.2.59/gns/html/index.html       [NIMA]


GIS Free Data:

http://www.gisdatadepot.com/


Geoid:

WGS84 ECM96 field, 15 arc minute grid to degree/order 360

http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html

Sandwell & Smith, 1999: World Geoid Image version 9.2, 2 minute resolution, 72S to 72N

ftp://topex.ucsd.edu/pub/global_grav_2min/


Gravity:

Sandwell & Smith, 2005: World Gravity Image version 15.2, 2 minute resolution, 72S to 72N

ftp://topex.ucsd.edu/pub/global_grav_2min/

Sandwell & Smith, 2005: World Gravity Image version 15.1, 1 minute resolution, 72 S to 72N

ftp://topex.ucsd.edu/pub/global_grav_1min_V15/

Sandwell & Smith, 2007: World Gravity Image version 16.1, 1 minute resolution, 72 S to 72N

ftp://topex.ucsd.edu/pub/global_grav_1min_V16/

Bureau Gravimetrique International

http://bgi.cnes.fr:8110/bgi_service_a.html

USGS

http://crustal.cr.usgs.gov/crustal/geophysics/index.html#one


Heat Flow:

http://zeus.wdcb.ru/wdcb/sep/catalog/entries/h_03.html


Holocene Volcanoes:

http://www.volcano.si.edu/gvp/


Hotspots:

http://www.ig.utexas.edu/research/projects/lips/data/hotspots.htm


Palaeomagnetic Database:

http://www.ngu.no/dragon/Palmag/paleomag.htm


Plate boundaries:

Peter Bird's PB2002 model (published in G3: 4(3), 1027, doi:10.1029/2001GC000252)

http://element.ess.ucla.edu

Geological Survey of Japan   [updated site in 2001, not sure of file location]

http://www.aist.go.jp/GSJ/dMG/free/plates/Intro.html

NUVEL 1:   nuvel_1_plates (all), separate plates in multi-segment format, delimiter is ":"

http://jules.unavco.org/Gmt/

University of Texas

http://www.ig.utexas.edu/research/projects/plates/plates.html

U.S. Geological Survery

ftp://alum.wr.usgs.gov/pub/map/ascii/plates.asc.Z


Projections:

Oddens bookmarks for *any* kind of cartographic related topics

http://kartoserver.frw.ruu.nl/html/staff/oddens/oddens.htm

PROJ4*.ps.* describes many projections

http://www.remotesensing.org/proj

A Guide to Coordinate Systems in Great Britain

http://www.o-s.co.uk/services/gps-co/geo6.htm

German coordinate system (Landesvermessungsamt Nordrhein-Westfalen)

http://www.lverma.nrw.de/vermessung/raumbezug/purraumbezug.htm


Rivers:

HYDRO1K: Drainage network extracted from GTOPO30

http://edcdaac.usgs.gov/gtopo30/hydro/


Roads/Railways:

http://www.bts.gov/gis/ntatlas/         [ North American Transportation Atlas]


Salinity/Temperature:

World Ocean Atlas: temperature, salinity, nutrients, oxygen

http://www.nodc.noaa.gov/OC5/indprod.html      [1994, 1998, 2001]


Sediment Thickness:

http://www.ngdc.noaa.gov/mgg/sedthick/sedthick.html

GSC Open file 3039 "A digital compilation of depth to basement and sediment

thickness for the North Atlantic and adjacent coastal land areas"

http://geoscope.ipgp.jussieu.fr/pub/logiciels/3SMAC  (README, 3SMAC.2v6.tar.Z)


Stress:

http://www-wsm.physik.uni-karlsruhe.de/        World Stress Map

http://www.world-stress-map.org/


Topography:

Global:

ETOPO5: 5 minute grid, global topography/bathymetry

http://sunquakes.geol.binghamton.edu/faculty/jones/etopo5.zip
http://www.ncgia.ucsb.edu/pubs/spherekit/platforms.html   [netCDF format]

ETOPO2: 2 minute grid, global topography/bathymetry

http://dss.ucar.edu/datasets/ds759.3/
http://www.ngdc.noaa.gov/mgg/global/seltopo.html

GLOBE: Global Land One-kilometer Base Elevation

http://www.ngdc.noaa.gov/seg/topo/globeget.shtml

GTOPO30: 30 second grid, global topography

http://edcwww.cr.usgs.gov/landdaac/gtopo30/gtopo30.html

SRTM30: 30 second grid, global topography, GTOPO30 + Shuttle Radar Topography

http://srtm.usgs.gov/obtainingdata.html
http://edcftp.cr.usgs.gov/pub/data/SRTM30

TerrainBase: 5 minute grid, global topography/bathymetry

http://www.ngdc.noaa.gov/mgg/global/seltopo.html
http://gphsrv1.geophys2.uni-bremen.de/~jgrigel    [netCDF format]

Regional:

3 arc-second topography[US only]

http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html

Arctic: 2.5 km grid, BETA VERSION

http://www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html

BEDMAP:   requires conversion to GMT format, GDAL python extension (search the archive)

http://www.antarctica.ac.uk/aedc/bedmap/
http://earth.uni-muenster.de/~thoma/BEDMAP/   GMT version

Smith & Sandwell, 1997 seafloor topography: 2 minute grid, measured & estimated topo, 72S to 72N

http://topex.ucsd.edu/marine_topo/mar_topo.html
ftp://topex.ucsd.edu/pub/global_topo_2min/   topo_8.2.img

Smith & Sandwell, 2007 seafloor topography: 1 minute grid, measured & estimated topo, 72S to 72N

ftp://topex.ucsd.edu/pub/global_topo_1min/   topo_9.1.img

USGS 7.5 minute DEM files [SDTS format]

http://www.atdi-us.com

USGS National Elevation Dataset (NED)

http://edcnts12.cr.usgs.gov/ned/default.htm
http://edna.usgs.gov/

X-band satellite data:

http://www.dlr.de/NE-HF/projects/SRTM



FILE FORMATS:


1 x 1 degree DEM:

http://edcwww.cr.usgs.gov/glis/hyper/guide/1_dgr_dem.supplement#1_dgr.sup2


DLG:

ftp://ftp.blm.gov/pub/gis/dlg


GXF:   Grid eXchange Format

http://www.geosoft.com/support/technote/pdf/gxfr3d9_1.pdf


NetCDF:   NETwork Common Data Form

http://unidata.ucar.edu/packages/netcdf/index.html


PostScript®:

Adobe:

http://www.adobe.com/products/postscript/main.html

Richard's PS Junk Page:

http://www.ncf.carleton.ca/~cj434/


S57:

http://www.ohi.shom.fr/general/files/ecdisnew.htm


SDTS:

http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/public.html

http://rmmcweb.cr.usgs.gov/software/

http://wegener.mechanik.tu-darmstadt.de/GMT-Help/        search for DEM2GMT


Surfer:

[ GMT <-> SURF ]   ( part of GMT since version 3.3.6 , grdio format 6)

ftp://ftp.ualg.pt/users/jluis         [gmt_customio.c, gmt_customio.h, gmtformats.d]




Other Software


3dem:   a 3D fly-through program

http://www.monumental.com/rshorne/3dem.html


ArcGMT: A suite of tools for conversion between Arc/INFO and GMT

http://dusk.geo.orst.edu/arcgmt/

ftp://capnhook.geo.orst.edu/pub/arcgmt.tar


GMT ->  ArcInfo

http://www.info-scoop.com/free/       gen2shape xy-> ArcINFO shape file


ColorBrewer: generates RGB values for use in .cpt files

http://www.personal.psu.edu/faculty/c/a/cab38/ColorBrewerBeta.html


DEM2ASCII:   converts GTOPO30 DEMs to ASCII

http://lcdx00.wm.lc.ehu.es/~jsaenz/dem2ascii


Digitizers:   On-screen digitizers, require Tcl/Tk

http://alumnus.caltech.edu/~dshiels/computer/digitizer.html

http://www.acclab.helsinki.fi/~frantz/software/g3data.php


DXF2xyz:   [Windows only]

http://www.guthcad.com.au/freestuff.htm


epstool:   converts PostScript to Encapsulated PostScript - add preview, fix %%BoundingBox

http://www.cs.wisc.edu/~ghost/gsview/epstool.htm


File Conversion Central:

http://daytona.ca.sandia.gov/cgi-bin/conversion_central-3.1/cccgi


GD library:   API for writing PNG images

http://www.boutell.com/gd/


GEODAS:   NGDC Trackline Database (search, requires CD-ROMs for data retrieval)

http://www.ngdc.noaa.gov/mgg/gdas/gx_announce.Html


GeoTransform:   Java coordinate transformation software

http://www.ai.sri.com/geotransform/


GhostScript/GhostView:   On-screen PostScript® previewer/previewer front-end

http://www.cs.wisc.edu/~ghost/


GIFMerge:   merges individual GIFs into an animated GIF

http://the-labs.com/GIFmerge/


gimpcpt:   converts GIMP gradients to GMT's color palette (.cpt) format

http://www.vindaloo.uklinux.net/jjg/code.html


GIS Resources:

http://www.census.gov/geo/www/gis_gateway.html

http://www.partsgeek.com/parts/gis_resources.html


GLOBARC30:   [GTOPO30 interface]

http://www.icm.csic.es/geo/gma/geo0uk.html


gmtperl:   Perl interface to GMT

http://www.vindaloo.uklinux.net/jjg/code.html


GRADS:   [ extract data from NOAA/NCAR/... netCDF files (.nc) ]

http://www.cdc.noaa.gov/PublicData/tools.html#grads


Graphics Gems:

http://www.acm.org/tog/GraphicsGems/


GRASS:   [Geographic Resources Analysis Support System]

  http://www.baylor.edu/~grass/   Official GRASS GIS Web Site
  http://www-gis.sscc.ru/WWW/resource/grass.html   GRASS related links
  http://op.gfz-potsdam.de/GRASS-List/   GRASS help archive

GrdView(er):   Java3D viewer for netCDF grids

http://nsdl.sdsc.edu/beta/tools/gridviewer.html

http://nsdl.sdsc.edu/beta/tutorials/videos/gridviewer.avi   Tutorial

http://sioexplorer.ucsd.edu or http://nsdl.sdsc.edu/beta  Updates


IBM Open Visualization Data Explorer

http://www.research.ibm.com/dx/

http://www.opendx.org/index2.php


IGRF-Applet:   [plots of Geomagnetic field or components]

http://www.geo.fmi.fi/MAGN/igrf/


ImageMagick:

http://www.wizards.dupont.com/cristy/ImageMagick.html   [Win32/PC?]

http://www.imagemagick.org/cristy/MagickStudio/scripts/MagickStudio.cgi/

http://www.design-training.com/art/image-formatting.html


Magpick: [ netCDF grid viewer ]

ftp://geom.geometrics.com/pub/mag/Software/magpick2_6.exe   [Win32]

Linux version available from www.geometrics.com


MB System:   [multi-beam bathymetry, other processing]

http://www.ldeo.columbia.edu/MB-System/


MicroDEM:   [format/projection conversion, handles SDTS format]

http://www.usna.edu/Users/oceano/pguth/website/microdem.htm   [Win32]


MrSID SID file viewer/translator [Win32/some Linux]

http://www.lizardtech.com/download/?f=0&d=1


Orbital interpolation:

http://www.deos.tudelft.nl/ers/precorbs/software/


Paleomagnetism:

http://geography.lancs.ac.uk/cemp/resources/software.htm   [Windows]

http://sorcerer.ucsd.edu/pmag/  by Lisa Tauxe


Poster sized plots (similar to psmegaplot)

http://computing.ee.ethz.ch/sepp/poster-9.1995-st.html


PostScript to "edit" [Xfig]:

http://www.geocities.com/SiliconValley/Network/1958/pstoedit/


PostScript to "img":

http://saftsack.fs.uni-bayreuth.de/~latex2ht/   [LaTeX2Html]


PROJ4:   projections/datum shifts/etc

http://www.remotesensing.org/proj/


SDTS2DEM:

http://www.cs.arizona.edu/topovista/sdts2dem/   [Win32, Linux source]


Seismic Unix:

http://www.cwp.mines.edu/cwpcodes


tmutils:   tools to manipulate the TERRS-MODIS dataset for GMT

http://www.vindaloo.uklinux.net/jjg/code.html


Windows UNIX shell emulators:

Cygwin:

http://sources.redhat.com/cygwin/

WinXS:

http://www.softwareonline.org/winxs42.html




This is the part that is under construction.
 

http://rapa.geol.ucsb.edu/pub/phils (gmtmex5.tar.Z)     [grd2matlab]
----- file formats:

http://www.sscnet.ucla.edu/geog/gessler/167-2001/file-formats.htm
-----
GMT Color Palettes
    http://www.glg.ed.ac.uk/~pete/TEST/Minma.tar.gz
-----
GMT Script site:
    http://www.cs.adelaide.edu.au/users/darren/gmt
-----
Distances:
        http://www.census.gov/cgi-bin/geo/gisfaq?Q5.1
-----
        Here are TONS of great links for data, software, etc.
Part I: The Virtual Earth
    http://atlas.es.mq.edu.au/users/pingram/v_earth.htm

Part II: The Soft Earth
    http://dindy.geo.uniroma1.it/~loreto/iper-min/minvirt/s_earth.htm
-----
Paleomaps (rotated continent positions):
    http://www.odsn.de/odsn/services/paleomap/paleomap.html
-----
Slab contours:
    http://rses.anu.edu.au/seismology/projects/RUM/rum_download.html
-----
GMT as backbone for web visualization (seismic hazards)
    http://geohazards.cr.usgs.gov/eq/html/custom.shtml
-----
Everything about color:
     ftp://ftp.inforamp.net/pub/users/poynton/doc/colour/   [ North America ]
     ftp://ftp.igd.fhg.de/pub/doc/colour/ColorFAQ.pdf
     ftp://ftp.igd.fhg.de/pub/doc/colour/GammaFAQ.pdf
    http://www.erdw.ethz.ch/~bonk/ftp/misc/colorfaq.pdf    [ Europe ]
    http://www.erdw.ethz.ch/~bonk/ftp/misc/gammafaq.pdf
    http://www.robo.mein.nagoya-u.ac.jp/~niimi/color-space/COL_25.htm
    http://www.cs.rit.edu/~yxv4997/t_convert.html   [ conversion algorithms ]
-----
DEM error analysis
> Susan Wechler has created a virtual report at:
>
> http://web.syr.edu/~srperlit/survdisc.html
"This dissertation focuses on the impact of unknown errors in the DEM product."
-----
Antarctic Features Database:
http://www.nerc-bas.ac.uk/public/magic/add_home.html

ADDant.txt              Antarctic continent boundary
ADDfris.txt             Filchner-Ronne ice shelf
ADDfrisisl.txt          Berkner Is., Henry and Korff Ice Rises
ADDotheris.txt          Larsen, Risser, Amery Ice Shelves
ADDris.txt              Ross Ice Shelf
ADDrisisl.txt           Crary Ice Rise, Roosevelt Is., Steershead Cr.(?),
                          Black, and White Is.

This shell script and it's output are visible thru the web page:
ADDtest.gmt             A shell script to plot all of these (to
                        ADDtest.ps)
 Sridhar Anandakrishnan <sak@geo.ua.edu>
ftp://ice.geo.ua.edu/pub/sak/add.tar.gz

Sridhar Anandakrishnan (sak@ua.edu)
    ftp://osiris.geo.ua.edu/pub/sak/
-----
Crustal motion:    NUVEL-1A, (NNR velocity)
    http://sps.unavco.org/crustal_motion/dxdt/nnrcalc

Convert DEM to geographic coordinates
    http://www.mbari.org/~kels/dem.html

National Center for Earthquake Engineering Research
    http://nceer.eng.buffalo.edu/

spinning globes
    http://www.ngdc.noaa.gov/mgg/image/images.html#relief

WAM Cycle 4:
    http://superior.eng.ohio-state.edu/~welsh/cwo/related.html
 
 



Contour maps of distance from a location:

http://yama.colorado.edu:8080/dist.html