GeoMapApp©
New! July 1, 2009: GeoMapApp version 2.0.2
GeoMapApp is a data exploration and visualization application that is continually being expanded as part of the Marine Geoscience Data System at the Lamont-Doherty Earth Observatory of Columbia University. The application runs in Windows, MacOSX, Linux and Solaris operating systems using the Java Runtime Environment (requires version 1.5). Learn more about GeoMapApp from the User Guide and the Multimedia Tutorials and Development History tabs to the left.
GeoMapApp provides direct access to the Global Multi-Resolution Topography (GMRT) compilation that hosts in tiles high resolution (~100 m node spacing) topography from multibeam data for ocean areas and Shuttle Radar Topography Mission elevations over land.
Join our mailing list: If you are a regular GeoMapApp user please join the announce-list, a moderated forum where the GeoMapApp developers will post release information and critical updates. On June 12, 2009 we welcomed our 310th subscriber!
Version 2.0.2 provides a brand new design of cascading and tear-off menus to facilitate selection from a large assortment of terrestrial and ocean datasets. GeoMapApp now has a Layer Manager that lists the currently selected layers for viewing, re-ordering and individual rendering with variable transparency. Each layer has its own Info Button that directs relevant dataset source and citation information to a browser window.
GeoMapApp accesses via the internet a rich compilation of data for physical oceanography, paleoclimates, geochemistry, seabed sediment and rock compositions, ocean crust age, spreading rates, bathymetry, and sediment thickness. One can select and view seismic reflection, gravity, magnetic and topographic profiles from tens of millions of kilometers of ocean surveys dating back to the 1960s. There are dedicated interfaces to explore the results of 40 years of ocean floor drilling, earthquake locations, magnitudes and epicenter depths, and seabed photographs from submersibles, remotely operated vehicles and towed camera sleds. The image in the map window can be saved or sent directly to a printer. Tabular datasets are selectable with a lasso tools and can be manipulated in interactive graphs. Gridded datsets can be sun-shaded from selected directions and illumination angles and contoured. Users may import grids and tables from their own file system and from Web Mapping and Web Feature Services and take advantage all of the visualization capability of the application.
Upon startup, there are choices of Mercator or North and South polar projects for the map window. Our Virtual Ocean application offers additional visualization on the surface of a rotating 3-D virtual globe with tilting to enhance the vertical exaggeration.