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Evaluation of the trend uncertainty in summer ozone valley over the Tibetan Plateau in three reanalysis datasets
作者:重点实验室               发布时间:2017-9-9 13:39:52              浏览量:19

Article

Evaluation of the trend uncertainty in summer ozone valley over the Tibetan Plateau in three reanalysis datasets

Journal of Meteorological Research

Guo, Dong; Su, Yucheng; Zhou, Xiuji; Xu, Jianjun; Shi, Chunhua; Liu, Yu; Li, Weiliang; Li, Zhenkun

Abstract

Trend uncertainty in the ozone valley over the Tibetan Plateau (OVTP) and the South Asian high (SAH) during 1979-2009 in ERA-Interim (interim reanalysis data from the ECMWF), JRA-55 (55-yr reanalysis data from the Japan Meteorological Agency), and NCEP-CFSR (Climate Forecast System Reanalysis) datasets was evaluated. The results showed that the NCEP-CFSR OVTP became strong in the summers of 1979-2009, whereas it became weak according to ERA-Interim and JRA-55. Satellite data merged with TOMS (Total Ozone Mapping Spectrometer) and OMI (Ozone Monitoring Instrument) agreed with the OVTP trend of NCEP-CFSR. The OVTP strengthening in NCEP-CFSR may have been caused by SAH intensification, a rising tropopause, and increasing ozone over non-TP (non-Tibetan Plateau) areas (27A degrees-37A degrees N, < 75A degrees E and > 105A degrees E). Analogously, the OVTP weakening in ERA-Interim and JRA-55 may have been affected by weakening SAH, descending tropopause, and decreasing non-TP ozone.

DOI:10.1007/s13351-017-6058-x


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