Regions of TOGA COARE Operations

For the purpose of compiling statistics of satellite cloud cluster occurrence, the TOGA COARE region was considered to consist of three nested regions. These regions are shown on a map and are described below:

  1. Intensive Flux Area (IFA)

    This was the region of most concentrated observations taken on islands, ships, and buoys. It is shown by the quadrilateral enclosing the point 2 deg S and 156 deg E, which was the central buoy location in the array. For the purpose of identifying the satellite cloud clusters, the elliptical region was used as a proxy for the actual IFA. The data in the time-size plot panel identified as "IFA" clusters includes cloud clusters whose centroids were located within the ellipse.

  2. The aircraft accessible area

    This region is a partial circle radiating out from Honiara. The outer boundary of the circle was approximately the 3-hour flight distance for the turboprop aircraft stationed at Honiara.

  3. The TOGA COARE large-scale array (LSA)

    This region encompasses the whole region (147-180E, 10S-10N) regarded as the TOGA COARE domain.