Event

The EVENT table includes metadata fields defining locations for sampling or measurements (synonyms: site, station). Double click on an event label in 4D will open the event window showing its fields and the list of related data series. If data are georeferenced, the event label and latitude/longitude are mandatory. (If an event does not have a position, import with values -999.999 in the fields latitude and longitude and the position will not be shown in the metaheader.)

Event labels must be unique and do not contain blanks. This can be ensured by combining the station numbers with the campaign label, using an underline to join (e.g. Taymyr97_3). A single event can be defined directly by starting from the campaign level. Otherwise use the import form and import via Menue File/Import, choose Sites/Events.

Event label problem: there is a great risk of confusion with event labels. Please consider that clarity for the relation between event and data is paramount for the curator. The event labels published in the expedition report should be exactly those that appear in a publication and in the data sets provided for import (first column). In some cases, an additional labeling of events can not be avoided; use the field optional label in the event table to add a second label. It will appear behind the event label in parenthesis.

Retrieval example for events in ART: Looking for gravity cores in the Mediterranean Sea

This example explains the way how to define a retrieval with ART (Advanced Retrieval Tool). Any retrival in one of the tables of the data model works in a similar way.

> start on http://www.pangaea.de
 * click on Data
 * click on ART (the data mining tool of PANGAEA is a Java applet which is now loaded to the local computer; if using ART for the first time, accept requester for the certificate)
 * click on Event (the Event table includes all samples/observations with its metadata)
 * click on the List config card
 * configure your table in Columns to display. You can select the searched criterions by double clicking on an item; sort with the up and down options. (e.g. include elevation and recovery from the "Meta Information" menu, exclude gear type).
 * click on the Map card.
 * select Geographical retrieval mode in the tool bar; select the derived area by dragging the cursor in the global map keeping the mouse button pressed (e.g. Mediterranean Sea). The coordinates of the selected area are shown in the status line below the map.
 * click on Retrieval card (the search area is now defined)
 * click on new line
 * click on and
 * click on gear type in Criteria and on is equal to in the Operator list
 * Choices... gives you a list of all gear types defined in the system.
 * select Gravity corer and click ok
 * click on Fetch - the job is beeing processed.
 * the List card shows the results
 * the Map card shows the sites; use the Zoom mode to zoom in
 * select the Detail info mode i and click on one of the dots to get detailed information.

You may save the list from the List card to your harddisk by clicking on the disk symbol in the tool bar or open the results in a new browser window which can also be saved to disc.

You can import the results into the program PanMap to draw your individual map. This implies that you have Latitude and Longitude in the first two columns of the list.