his movie file consists of a series of 8-day composite, 4 km resolution SeaWiFS surface chlorophyll images for the geographical area bounded by 90°E-180°E, and 10°N to 60°S. The data run from September 1997 until March 2001. Pixels where no usable data has been received are represented in black. A colour bar and calendar are included in the movie. Pixels where no usable data were received are represented by black dots. Accuracy is ± 20%. Each scene was captured as a gif image, and then assembled into a movie by Chris Rathbone, CSIRO Division of Marine Research Remote Sensing Group. The composite images were obtained from http://oceancolor.gsfc.nasa.gov/SeaWiFS/ .