خلاصة:
The aim of this paper is climatic classification of Khuzestan province. For this purpose, we first used eleven-variable relationships of humidity, temperature and precipitation in synoptic stations of the study area. Then we formed a matrix with the dimention of 13*11 applying Kriging method for convert matrix dimention (616*11) and also for principal component analysis and cluster analysis inputs. In this research the principal component analysis was used for understanding the component details and the cluster analysis was applied for the climatic classification. The results show that there are five climatic region and four components in Khuzestan province. Climatic variety conditions and regional settingsd indicate that this province is near the sea and dry regions of Iraq and Saudi Arabian countries that extensively expand toward the heights of Zagros Mountains.
ملخص الجهاز:
This research, using principal component analysis and cluster analysis by the Ward method, aims to identify the constituent components and homogeneous climatic zones of Khuzestan province.
Table 2: Factor loadings on climatic elements Component, Variable, Residual, Winter Precipitation, Autumn Precipitation, Thermal Relative humidity, 0/72, -0/25, -0/60, -0/20 Wind, 0/58, -0/09, -0/01, 0/09 Dry bulb temperature, 0/94, -0/22, -0/05, 0/47 Minimum temperature, -0/56, 0/57, 0/58, 0/10 Wet bulb temperature, 0/14, -0/92, -0/13, -0/09 Precipitation, -0/17, -0/30, -0/82, -0/42 Autumn precipitation, -0/51, 0/42, 0/70, -0/06 Spring precipitation, 0/40, -0/70, -0/36, -0/25 Summer precipitation, -0/71, 0/47, 0/51, 0/59 Maximum temperature, -0/24, 0/21, 0/18, 0/92 Winter precipitation, -0/17, 0/86, 0/36, 0/20 Source: Authors Findings and Discussion The results obtained from principal component analysis and Varimax rotation showed that 94/5 percent of the variance of the province's climatic elements is explained by four components, respectively: the moisture component, winter precipitation, autumn precipitation, and the thermal component, Table 3.
In the clustering stage, using hierarchical cluster analysis, 5 climatic zones for Khuzestan province were determined as follows: 1- Low precipitation zone with high relative humidity (southwestern region) includes: Abadan 2- Hot and dry zone (north-south region) areas such as: Bostan, Omidiyeh, Ahvaz, Aghajari and Mahshahr 3- Humid and temperate zone (central-southeastern region) includes: Shushtar, Masjed Soleyman, Ramhormoz, Behbahan 4- High precipitation zone (eastern region) includes: Izeh 5- Temperate and rainy zone (northern region) includes: Dezful and SARDZAFUL References 1- Khoshhal Dastjerdi, Javad et al.
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