May 2002

Bringing Africa data to the desktop: the ARTEMIS Charting Applet

by Fred Snijders, Roberto Giaccio, Jeroen Ticheler, and Yota Nicolarea

The Artemis Charting Applet: Full Africa Demo

This page provides a fully functional example of the Artemis Charting Applet, applied to the whole of Africa. Just select a "Start year", a "Country" and a "Zone" from the pull-down menu to create your first chart. More instructions are given below.

Click HERE to activate the map with all the available countries and zones. For each zone, the available data from the ARTEMIS archive have been extracted and included in the Applet. The products are cold cloud duration, estimated rainfall and vegetation index, both as dekadal and as monthly values.
Information on how the zones were determined is provided in Page 3. For more information on how to use the Applet, see Page 2 of this document.

To use the Applet above:

1. Use the separate map linked below to determine a country and zone to graph. Click on the map to zoom for more detail
2. In the Applet selection area, first select a product (or use the default).
3. Select the time span to use for the charting (or use the default)
4. Select a starting date for the zone of interest and select the country and zone. This will be "sequence 1"
5. Select other countries, zones or starting dates as required for the other sequences
6. Select options when required: cumulate and auto scaling
7. Press "clone" to copy a graph in a separate window.
8. In case some lines have been degraded into points, check and uncheck the auto-scaling box, or re-size the browser window.

NOTE: Some charting functions take a long time to complete. Please wait before clicking on new selections when the previous action has not yet been completed!

Proceed to:

• Page 1: Introduction
• Page 2: How to use the Applet
• Page 3: Technical details
• Page 4: Country Demo of the Applet
• Page 5: Full Africa demo of the Applet

Fred Snijders, Roberto Giaccio, Jeroen Ticheler and Yota Nicolarea: Bringing Africa data to the desktop: the ARTEMIS Charting Applet, Page 5.