The USGS Costal website has a before and after comparison of Dauphin Island, AL. Dauphin Island was 168 miles from where Gustave came ashore, but did not excape the hurricane’s storm surge.
As you can see in the animation above, the blue is water level and brown is just above waterlevel. After the storm passed, more land is now under the water level and a storm burm put in on the Gulf Coast side (light green line) is completly gone.
The “Hurricane Gustav Hydrologic Impacts Map” shows the location of streamgages where the water level is currently at or above flood stage (depicted as a black triangle) or at a historical high discharge (depicted as blue circles); other USGS streamgages are depicted as open circles. The map also shows the location of storm surge sensors (red squares) which monitor water levels in rivers and canals.
The map is in near-real time, meaning each time you refresh any changes will appear.
Seems the USGS is playing with me ;) They changed the location of the historical earthquake query. I have made a fix to the plug-in and you can get the update here.
To install; download and save the file to the World Wind 1.4/Plugins/Earthquake2 folder, rename the existing Historical plug-in and add a .txt to the end (or delete it) and rename the new file from Historical_Earthquake_2.0.2.4.cs.txt to Historical_Earthquake_2.0.2.4.cs then start WorldWind and enable the new plug-in and lastly, have fun 
It seems the USGS is playing with me again 
They have been moving stuff around on their site and ended up breaking the Historical Earthquake Query plug-in. I will get a fix up for the next release of World Wind but that doesn’t really help people now. So here is how you fix it yourself:
That should fix the Earthquake Query plug-in then. If it does not, please let me know.
I blame APB for their post and now making me do even less work in a day ;) Anyway, the USGS has a new (to me) access point to LandSat imagery called USGS EarthNow Viewer.
This viewer plays recent passes of LandSat 5 and 7 of the US in IR and sometimes Color. But as I just found out.. it also has Real-Time flyovers! And I just watched it at the right time as I got a flyover overhead just now
Ok, I have the data up to a good starting level now. So I have an installer built so you can see the test data I have completed. This data is of the new NHDPlus dataset that is being completed. The area covered is Zone 08 which is the lower Mississippi River.
The data is in shapefile format and is being served via mapserver. It may be slow if there are a lot of people accessing at once.
The add-on can be downloaded here, remember that this is test/demo data and server and subject to later change. This also is not of the whole US but of Zone 08 the lower Mississippi area.
Here are some screen shots of the seven data layers in this add-on:
Production Unit: Regional sub-divisions used to process the catchments.
Subbasins: Boundaries of hydrologic units that make up the Production Unit.
Area: Polygonal features of type area representing: submirged, bay/inlet, bridge, canal/ditch, dam/weir, flume, foreshore, hazard zone, lock chamber, inundation area, rapids, sea/ocean, special use zone, spillway, stream/river, submerged stream, wash, water intake/outflow and area of complex channels.
Flowline: Linear features such as stream/river, canal/ditch, pipeline, artificial path, coastline and conector.
Line: Linear features like bridge, dam/weir, flume, gate, lock chamber, nonearthen shore, rapids, reef, sink/rise, tunnel, wall, waterfall, sounding datum line and special use zone.
Waterbody: Polygon features of a water mass such as playa, ice mass, lake/pond, reservoir, swamp/marsh and estuary.
Catchment: all features in the Production Unit.
WP Cumulus Flash tag cloud by Roy Tanck requires Flash Player 9 or better.
