Pilot Chart Summary Data (NCDC TD-9757)

These one-degree and five-degree quadrangle summaries give the observation count for an eight-point "wind rose", and means and standard deviations for: wind speed, pressure, air temperature, wet-bulb temperature, sea surface temperature, air-sea temperature difference, and wave height. Also included are light and heavy superstructure icing potential and frequency of gales. The general period summarized is 1850 to 1970, but the actual period summarized varies by ocean basin. These long-term monthly averages were used to produce the U.S. Navy Marine Climatic Atlas.

这些以1度和5度为分辨率的矩形格点统计结果，提供了八点式"风玫瑰图"的观测样本量，以及风速、气压、气温、湿球温度、海表温度、海气温差、浪高的平均值与标准差。此外还涵盖了上层建筑轻、重积冰潜势与大风发生频次。本次统计的基准时段总体为1850年至1970年，但实际统计时段因大洋盆地而异。上述长期逐月平均值被用于制作《美国海军海洋气候图集（U.S. Navy Marine Climatic Atlas）》。