This monthly gridded precipitation data set is from the Centro de Ciencias de la Atmósfera (CCA) at the Universidad Nacional Autónoma de México (UNAM).
Data source: The analysis was based on daily station precipitation, maximum and
minimum temperature data from CLICOM (for Mexico area), and monthly
data from the Global Historical Climatology Network (GHCN) version 2
(for the rest of the region). Climate Research Unit (CRU) monthly
gridded precipitation and maximum and minimum temperature data sets
were used as the 'first guess' for the Cressman objective analysis.
Resolution : 0.5 degree latitude by 0.5 degree longitude
Period : From 1901 to 2002
Domain : The analysis domain is (-140.25W - 59.75W, 4.75N - 45.25N).
Over Mexico, Southern U.S., Central America, Caribbean Sea and
Northern South America
Analysis Scheme : Cressman (1959)
Units : mm/month, degrees Celsius
Data set author and contact information: Matias Méndez, email: matias@atmosfera.unam.mx / Ernesto Caetano, email: caetano@servidor.unam.mx