نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناس ارشد/ آمار. دانشگاه پیام نور مشهد.
2 کارشناس ارشد /هیدرولوژی . دانشگاه آزاد مشهد
3 کارشناس /آمار . دانشگاه پیام نور مشهد.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
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
کلیدواژهها [English]