Vizualisation of georeferenced data in Pangaea through GIS (Geographical Information System) functionality is enabled by using Google Earth. Looking for data with Pangaea search presents a list of hits.
- Pressing the button <Show Map> will open a Google Earth map with locations of data sets. The standard map features (upper left) allow to turn the map or zoom. <Shift/click/drag> allows to zoom into the map. While increasing the scale by zooming into a certain area, more data points will be shown. At any scale a maximum of 300 events is shown (first 300 in result list).
- Clicking on a mark will show the data citation with a DOI-link to the data set.
- A legend (lower right) explains the meaning of marks which distinguish between published (yellow)/available (red) data sets and data from one location or distributed through several locations. A detailed explaination is given by hoovering with the pointer above the mark of interest.
- Uncheck Show labels to remove names and borders of countries.
- The map will show locations only, if an event information is related to the data set
- one placemark per event
- no map for georeferenced data with event label not_given)
- if a data set contains too many events, the map may not be shown.
- track data is an exception: one event with start/end and lat/long/date/time configured in the data set.
To change the projection it is recommended use the Google Earth function which will download a *.kml file.
Starting from the result list in Pangaea search again and pressing the <Google Earth> button will save the georeferenced results in a kml-file. Provided that google earth is installed on the users computer, a click on the kml-file will oben the georeferenced data points in Google Earth.
GIS via ESRI
A project specific GIS was designed at the JUB (Jacobs University of Bremen) for the EU-project HERMES based on the ESRI MapServer. Locations of data from the study area Black Sea were converted to shape files including a dynamic query to data sets related to the specific location (event).
- http://gis-web.jacobs-university.de/html/web-map-services.html (IRCCM/Statoil)
- http://www.ub.edu/hermes/ (lophelia/ec05y5tem5)
- GeoMapApp is an earth science exploration application by Lamont-Doherty Earth Observatory
- Google Landsat
- Google headquarter
- Index to Marine & Lacustrine Geological Samples - presented on a web-GIS
The first visualization of data was established through a mapserver by using the open source UMN MapServer. To navigate in collections of large files, e.g. from geophysics or bathymetry, the Pangaea Internet Mapper enabled a georeferenced view on the Pangaea content. Data sets were converted to shape files and are used as static elements in the maps with dynamic links to the data.