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Modeling Sea Level Change in Nasa World Wind and Google Earth

posted by Satri on Wednesday April 04, @10:33AM   Printer-friendly   Email story  Permalink  Trackback URI  Slashdotthis  Diggthis  Del.icio.us
from the see-to-water-approaching dept.
Oceanography Environment Google NASA Virtual Globe
There's two simultaneous entries about modeling sea level change by Digital Geography, one with NASA World Wind and the other using Google Earth. From the NWW post: "I was interested in testing the Global Flood plugin for World Wind and am pleased to say that it worked very well, though not at the zoom level required for the lesson I describe here. [...] However, if the object of the lesson is to look at the impacts of sea level change on a regional scale, then World Wind is an improvement on the Google Earth technique, and the level of flooding can be controlled by a simple slider."

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Mapping the Flood in the U.K. and Data Access 1 comment [+]
Two geoblogs offers several links on the floods in the U.K, first, on the Brain Off blog and then two entries from Mapperz. From the Brain Off: " This thread about UK flood mapping on the OpenStreetMap mailing list demonstrates that OpenStreetMap is one of the best angles to approach mapping for disaster response. [...] The floods again highlight issues with closed government data. The Environment Agency has come under criticism for restricting use of flooding data after the floods last month in the North." See also related stories.
Sea Level Deluxe for NASA World Wind [+]
blueheeler writes "PanglossTech has released Sea Level Deluxe for NASA World Wind. This add-on displays high resolution bathymetric/topographic maps of Earth's sea level, ranging from the last ice age to the potential melting of the polar ice sheets. It identifies low-lying cities and coastal flood zones at greatest risk from rising sea levels, storm surges, etc. PanglossTech also provides many free terrestrial and planetary data layers for World Wind. Sea Level Deluxe includes shaded relief maps at 10 meter sea level intervals from 120 meters below the present value (~18-20,000 years ago) to 80 meters higher, the estimated level that would accompany complete melting of the ice fields in Greenland and Antarctica. Corresponding contours are provided for these same datasets. Image layers are provided that depict low-lying coastal regions subject to flooding from rising sea levels, storm surges and other causes. Over half of the world's cities with a million or more occupants lie less than 80 meters above sea level. These cities may be represented with different combinations of names and icons. Several basic administrative map layers are included to facilitate creation of presentation-quality graphic and video displays. These data layers may be combined with one another or with compatible layers built into World Wind or prepared by other developers." See also this previous story on modeling sea level change in NWW and GE.
New USGS Map For Tracking Floods [+]
An online, user-friendly map that tracks flood conditions has been developed by the U.S. Geological Survey (USGS).

As expected rains drive flood waters higher along the Mississippi River Valley, USGS crews are in the field collecting data needed to update the flood maps, prepare forecasts, manage the flood and warn communities.

This new system is part of the USGS WaterWatch suite of web-based streamflow products and can be accessed at the Map of flood and high flow conditions Web site.

Read the entire story at www.geocomm.com.
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