Assessing Gridded Precipitation and Air Temperature Products in the Ayakkum Lake, Central Asia

Shengjie Wang, Hongyang Li, Mingjun Zhang (), Lihong Duan, Xiaofan Zhu and Yanjun Che
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Shengjie Wang: College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
Hongyang Li: College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
Mingjun Zhang: College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
Lihong Duan: College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
Xiaofan Zhu: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Yanjun Che: Department of Geography Science, Yichun University, Yichun 336000, China

Sustainability, 2022, vol. 14, issue 17, 1-13

Abstract: We evaluated the performance of gridded precipitation and air temperature datasets near the Ayakkum Lake at the southern margin of Xinjiang, arid central Asia. Statistical measures were applied to assess these climate products on a monthly basis from 2013 to 2018. For monthly precipitation amount, the European Centre for Medium-Range Weather Forecasts Reanalysis 5 shows a good performance among the five products based on most statistical measures, and the China Meteorological Forcing Dataset can also be used as an alternative, especially for estimating the long-term annual mean. For monthly air temperature, WorldClim historical weather data are recommended because of the low mean absolute error, root mean square error and distance between indices of simulation and observation. Better spatial and temporal coverages of in-situ observations are still needed to produce an optimal correction scheme for the mountainous regions of arid central Asia.

Keywords: precipitation; air temperature; gridded data; accuracy assessment; Xinjiang (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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