Long Term Average And Variability Of Air Temperature Essay example

1290 Words Jan 3rd, 2016 null Page
1 Long-term average and variability of air temperature in 1951 - 2010
The spatially interpolated long-term average annual air temperature (T_ann) in CA during 1951 - 2010 has an area weighted mean of 5.76 °C, ranging from -19 °C to 18°C. High values of T_ann (> 15 °C) are observed in the Karakorum desert, spanning from the southeastern part of Aral-Caspian Deserts (AD) to the southwestern part of Western Pamir (WP), while low values (< -15 °C) are observed in mountains of Altai, Tien Shan and Pamir (Figure 7). The distribution of air temperatures depends on both elevation and latitude, with colder air temperature in higher elevation and further north latitude. High elevation areas have mean T_ann of –2.22 °C and –7.22 °C for elevation ranges of 3000 – 4000 m and > 4000 m, respectively; while areas below 1000 m have mean T_ann of 7.32 °C (Figure 12). Climatic regions in the southern latitudes have higher T_ann compared with climatic regions in northern latitudes at the similar elevation ranges (Figure 13 and 14). Annual and seasonal long-term average air temperatures have similar spatial distribution patterns (Figure 7 - 11).
The standard deviation of annual temperature (σT_ann) has a range between 0.31 °C and 1.24 °C, with an area weighted mean of 0.80 °C (Figure 15). High values of σT_ann are observed in mountainous areas, especially in Tien Shan and Altai, while low values are mainly observed in northern plain areas of the Kazakh Steppe. Winter is the season with most…

Related Documents