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Weather Station and Computer Network to Provide Evapotranspiration Information in Southern Brazil Through Internet
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 032232, 2003 ASAE Annual Meeting . (doi: 10.13031/2013.13807) @2003
Authors: Reimar Carlesso, Genésio Mario da Rosa, Mirta Teresinha Petry, Marcio Zaiosc Almeida
Keywords: Automated weather network, irrigation water management, reference evapotranspiration
The objectives of this work were: (i) to evaluate the implementation, installation, operation,
maintenance and management of a weather station network in Southern Brazil and Uruguay; (ii) to
provide reliable weather information data; (iii) to give real-time weather quickly through the Internet. This work was developed at the Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande
do Sul State, Brazil. The network is composed by seventeen (17) weather stations in Brazil and three
(3) in Uruguay. Weather variables measured by the stations are automatically transferred into a PC
in a time interval of 30 minutes. In the local PC the weather information data are stored in a fail-safe
nonvolatile memory, transferred by satellite to a data base (MySQL) located at UFSM. Local crop
growing conditions for better irrigation management are provide based on a customized database.
Farmers are able to plug into the system, through the Internet (http://www.irriga.proj.ufsm.br), and
receive the irrigation management information. Irrigation data are provided in a time interval of 24
hours (to begin an irrigation and the size or amount of that application), besides the probability of
irrigation application for the next 24 and 48 hours.