1. Visualization of El Nino Data CS525D Project Zaixian Xie

2. El Nino Data Source: UCI KDD Archive http://kdd.ics.uci.edu/databases/el_nino/el_nino.html Type: Spatio-Temporal Data Content: oceanographic and surface meteorological readings taken from a series of buoys positioned throughout the equatorial Pacific.

3. El Nino Data (cont.) We used a small subset – The data for 23 May 98 to 4 June 98 Attributes: – buoy ID – day – latitude – longitude – winds – humidity – air temperature – sea surface temperature

5. Main Features Grid and labels Employing color to represent scalar values Employing arrows to represent vector values Legend Animation Visualizing missing values

6. Future Improvements Grid On/Off Label On/Off Customizing color sequence, animation frequency, point size, glyph shape, arrow unit length Integrating multiple attributes in a single figure. 3D

7. Questions and Comments