A Formation of Pileus-like Veil Clouds Over Cape Cod, Massachusetts ,

Joanne Starr Malkus Woods Hole Oceanographic Institution and Illinois Institute of Technology

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Andrew F. Bunker Woods Hole Oceanographic Institution

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Kenneth McCasland Woods Hole Oceanographic Institution

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A case of low-altitude veil clouds from which cumulus later grew is studied by means of airplane, photographic, and synoptic data. Convergence due to the land-sea temperature contrast is indicated as the critical factor in this unusual cloud formation. This conclusion is further supported by an airplane study of the cumulus structure.

1 Contribution No. 534 from the Woods Hole Oceanographic Institution.

2 The observational work discussed in this paper was carried on under Contract No. N6-onr 277, Task Order No. II, NR-082-021 by the Office of Naval Research and the Woods Hole Oceanographic Institution, and analysis of the results was completed under Contract No. Nonr-174(00) with the Office of Naval Research and the Illinois Institute of Technology.

A case of low-altitude veil clouds from which cumulus later grew is studied by means of airplane, photographic, and synoptic data. Convergence due to the land-sea temperature contrast is indicated as the critical factor in this unusual cloud formation. This conclusion is further supported by an airplane study of the cumulus structure.

1 Contribution No. 534 from the Woods Hole Oceanographic Institution.

2 The observational work discussed in this paper was carried on under Contract No. N6-onr 277, Task Order No. II, NR-082-021 by the Office of Naval Research and the Woods Hole Oceanographic Institution, and analysis of the results was completed under Contract No. Nonr-174(00) with the Office of Naval Research and the Illinois Institute of Technology.

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