Exploring the world of free tools for GIS, GPS, Google Earth, neogeography, and more.
Enter a surname (last name) into the World Names Profiler, and get a choropleth map showing the population density of that name:
A table of the countries with the highest FPM (frequency per million) of that name:
Continue reading ‘Map Surname Densities With The World Names Profiler’
The Nearby.org.uk site has a pair of replacement compass indicators for Google Earth:
The Compass Star replaces the standard Google Earth compass indicator:
with one that has an angular degree scale, and finer divisions:
The Magnetic Compass is supposed to do something similar, but this time displaying the direction of magnetic north at any location:
… but sometimes it doesn’t seem to work right.
NOAA has a website that will give you the magnetic declination (the deviation between true and magnetic north) for the present, or any date after 1900, for the entire world. For the US, there’s also a page that gives you that value for dates before 1900. Links to graphic maps of declination and other info are available here.
Matt Amato at Analytical Graphics has created a network link that converts USSTRATCOM data (active and inactive satellites, debris and rocket bodies) into a KMZ network link for observation in Google Earth:
In the above view, debris and rocket bodies are turned off; active satellites are in green and inactive in gray. Satellites are plotted at their actual 3D position, including altitude, so you can zoom around above the Earth and see the satellites suspended overhead. Switch to Google Sky mode, and see the satellites plotted against the constellations:
Continue reading ‘Real-Time Satellite Visualization In Google Earth’
A bit more than a year after the 3.3 commercial version was converted to open source, with management turned over to 52 North, ILWIS 3.5 has been released. New features include:
ILWIS is a full-featured, highly sophisticated raster-oriented GIS program. See this earlier post for a longer list of some of its features, as well as links to extensive documentation (currently missing from the 52 North website).
