Satellite data and the seasonal and interannual study of the oceans: the use of the TIMELINE concept

Satellite data has been shown to be usable in the form of single high resolution images, in the form of long series of high resolution imagery, as long-term composites and finally, as graphs that may span a decade or more of continuous operation. This last is emphasized in this discussion paper using a methodology called TIMELINE. Timeline represents a sharp departure from the common use of satellite imagery derived from a single or selected set of short-term satellite passes. In its graph or composite image form, it is shown to be a powerful tool in establishing patterns of long-term dynamic changes in an ocean region. While the timeline data may be used alone, it provides its best information on a study region when combined with other satellite, in situ and meteorological data. The methodology can be used in both well-documented or data-scarce areas and, thus, provide real world synoptic data to the study and understanding of these regions