This page provides information
concerning the Department of the Earth Sciences Rooftop Weather
Station. The station, located on the roof of Lennon Hall, is pictured
at left. The weather station was purchased from Climatronics Corporation of
Bohemia, New York. Wind speed and direction, temperature, relative
humidity, and solar irradiance are measured by instrumentation on the
metal tripod. A tipping bucket raingauge is located nearby; the
heated precipitation collector also measures snowfall water
equivalent. These data are collected by a datalogger, which also
contains a barometer to measure atmospheric pressure. The data are
then automatically transferred to a personal computer, where data
collection software runs continuously. The data are written to a disk
that is also mounted by our local UNIX computer network. On the UNIX
system there are a series of programs that perform additional
computations, write the data into html format for display on the web,
and store the data in GEMPAK format. In addition to the current
weather display, a brief
climate summary for the previous day is now available. Starting
in August 1997, an archive of climate summaries for past
days is available.