This directory contains version 1 of the Radiosonde Atmospheric Temperature Products for Assessing Climate (RATPAC).This version is no longer updated and has been superseded by version 2 (see http://www1.ncdc.noaa.gov/pub/data/ratpac/readme.txt). The format of the version 1 files is the same as that of the version 2 files. Last updated: August 2016