A Low Altitude Meteorological Data Base.

摘要

This document describes a meteorological data base of the Northern Hemisphere for atmospheric pressure levels up to 50 mb (about 20 km). The quantities provided are those which have proven to be useful in certain calculations of nuclear effects, such as modeling fireball rise and late time debris cloud movement. These quantities (provided at pressure levels of 850, 700, 500, 300, 200, 150, 100, and 50 mb) are: (1) mean easterly windspeed, (2) mean northerly windspeed, (3) vector standard deviation of windspeed, (4) temperature, (5) standard deviation of temperature, (6) dew point temperature, and (7) standard deviation of dew point temperature. The data is provided for all twelve months and seasons at five degree increments of latitude and longitude. How to access digital data appropriate for the four seasons and each month individually which is contained on magnetic computer tapes available through MRC or the DNA nuclear effects library, DASIAC, is described. In Appendix A, printed output from the data base for the seven quantities and eight pressure levels mentioned above is presented for the four seasons (output for each month would require more volumes).