Thursday, December 30, 2004
"Picture of a Tsunamis"
Satellite images of the December 26th tsunamis are posted at the Earth Observatory website. The copyrighted images were taken by DigitalGlobe's Quickbird satellite and show high velocity waters interacting with a shorline.
See the Picture of a Tsunamis
at the Earth Observatory webssite.
Sunday, December 26, 2004
Indonesia Earthquake - 9.0 Magnitude
One of the strongest earthquakes in the past century has struck off the west cost of northern Sumatra, Indonesia. Reported by the USGS as a 9.0 magnitude event, this indonesian earthquake caused a 600 mile-long rupture in the ocean floor. This is shown on the map below along with aftershock locations. Tsunamis from this earthquake have drowned thousands in Sri Lanka, India and Indonesia.
Read more about this Indonesian Earthquake
at the USGS website.
Thursday, December 23, 2004
GPS use if finding more and more applications in farming. Here's another article that discusses GPS farming applications such as plowing, harvesting, fertilizing and insect control.
Read more about GPS Farming
at the Miami Hearld
Wednesday, December 22, 2004
Impact of a GPS Service Shut Down
In the event of a national emergency (such as a terrorist attack) the US government is in a position to initiate a GPS Service Shut Down. The impact of such a shut down is discussed in an article at WirelessIQ.
Read more about GPS Service Shut Down
Sunday, December 19, 2004
US Topo Maps
Fugawi has published their "Map of America", a seamless collection of US topo maps at 1:100,000 scale. These maps can be viewed on your computer and you can also upload download waypoints, routes and tracks between your computer and GPS.
Get more information at US Topo Maps
Friday, December 17, 2004
Traffic Conditions Report
Next time you type the name of a major city into a yahoo search box, click on the "Maps & Traffic" link. In addition to a map of the city you can also see traffic conditions, incident reports and color coding for vehicle speeds.
Get a real time Traffic Conditions Report
Wednesday, December 15, 2004
Iceberg Satellite Images
A large iceberg is disrupting normal wind and current patterns near McMurdo Sound. This is preventing the annual break-up of ice, and could possibly leave the Sound frozen through the summer season. Parent penguins may not be able to swim the great distance to open water and make the return trip with food for their chicks.
See more Iceberg Satellite Images
at Earth Observatory.
Sunday, December 12, 2004
Satellite Images of Flooding in Iran
Satellite images of flooding in Iran have been posted at Earth Observatory. Sediment laden waters are shown as a blue color in the upper image. An image from before the flood event is shown for comparision below.
See more detailed Satellite Images of Flooding
in Iran at Earth Observatory.
Monday, December 06, 2004
Directions Magazine has launched a professional profiles section to their website that features a growing number of on-the-job stores about people who work in the field of GIS. This is a great place to learn about possible careers in mapping and GIS.
Read more about GIS Careers
at the Directions Magazine website.
Sunday, December 05, 2004
Fires in the Rainforest
Earth Observatory has posted satellite images of fires in the Amazon Rainforest. Shown in red on this image are hundreds of agricultural fires in an area surrounding the mouth of the Amazon River.
See this image in a larger format, additional images of this event and an article - "From Forest to Field" at the Earth Observatory website.Fires in the Rainforest
Saturday, December 04, 2004
Truckers Record of Duty Status - RODS - Replaced with GPS
Truckers have long been required to keep detailed logs of their driving in handwritten log books. Now, the Federal Motor Carrier Safety Administration is making a way for them to use GPS tracking as an automatically generated log.
Read more about GPS RODS
Thursday, December 02, 2004
Problems with GPS Navigation
I've reported lots of benefits of GPS here but there are a few downside stores. Two reports of French motorists following the instructions of their onboard GPS and driving the wrong way down French highways can be read at the iafrica.com website. It is very easy to understand how flaws in driver judgement or in the voice guidance software could lead to such incidents. Motorists go wrong way following GPS guidance