Open AccessAdaptability evaluation of TRMM over the Tianshan Mountains in central Asia
Author(s) -
Like Ning,
H. L. Liu,
Anming Bao,
Xiaohan Pan
Publication year - 2016
Publication title -
mausam
Language(s) - English
Resource type - Journals
ISSN - 0252-9416
DOI - 10.54302/mausam.v67i3.1381
Subject(s) - adaptability , statistic , environmental science , climatology , central asia , precipitation , elevation (ballistics) , meteorology , physical geography , geography , satellite , statistics , mathematics , geology , ecology , geometry , aerospace engineering , engineering , biology
Accurate precipitation in mountain area is very important for evaluating the hydrological process and ecological problem. With the satellite data having been widely used in the past few decades, adaptability evaluation becomes the principle problem. The adaptability of TRMM 3B43 in mountain area of Central Asia was analyzed in this study. The TRMM product was compared with the observed data for the period of 2000-2006. Four statistic parameters were introduced based on the statistical analysis theory. The results show that the bias reached -13.93% over the entire regions, and the correlation coefficients over 70% of stations were greater than 0.70. According to the accuracy analysis of TRMM, we found the errors have significant differences in time and space. On the whole, the precision in the warm seasons is much higher than that in the cold seasons. The precision of the southern and eastern areas is higher than the other areas in space. Additionally, the accuracy of TRMM with elevation was acceptable at very significant level. This study indicates that the precipitation from TRMM 3B43 could be applied in the Tianshan Mountains in Central Asia. It could provide reference for the use of new data source in the mountain area.