Ship‐based measurements of marine clouds and radiation in the equatorial Pacific are used to address a critical question: What is the relationship of integrated cloud liquid to cloud albedo and solar flux at the Earth's surface in the broken cloud regime? These measurements, taken during a 21‐day on‐site period of the Tropical Instability Wave Experiment (TIWE), constitute the first comprehensive database for examining subgrid‐scale parameterizations of cloud and radiation interactions for nonhomogeneous cloud regimes. The high‐resolution field experiment data are used in combination with satellite‐based records to investigate the relationship between small‐scale (temporal and spatial) quantities and the large‐scale parameterizations of the effects. In the 21‐day ship‐based record the average cloud fraction was 0.26 and the average cloud optical depth was about 2. The temporally averaged ship‐based estimate of cloud liquid water for this period was 54 g m−2, and the temporally averaged satellite‐based estimate of cloud liquid water within 25 km of the ship was 50 g m−2.
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Chertock et al. (1993) studied this question.
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