Mean Daily Temperature Pattern for Arid and Semi-arid Zones in Iran

Document Type : Original Article

Authors

1 M.S. in Statistics, Dept. of mathematics. University of Payamnoor, Mashhad, Iran.

2 M.S. in Hydrology, Dept. of Civil Engineering. Engineering Faculty. Azad University of Mashhad, Iran.

3 B.S. in Statistics, Dept. of mathematics. University of Payamnoor, Mashhad, Iran.

Abstract

Measuring of daily maximum and minimum tempratures is the oldest method to estimate mean daily temperature which has been a global standardized method since the ninteen century. Unfortunately this method is not precise. In this research we selected  all climatology stations  over the Khorasan province and drew a sample of  temperature-graphs by a systematic sampling method to establish an accurated method. Mean daily estimates by integration of graphs and measuring daily maximum and minimum temperatures  are calculated. Finally we introduce a new model for estimating mean daily temperatures by regression from daily maximum and minimum values

Keywords


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