Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data

AMS Citation:
He, W., S. -peng Ho, H. Chen, X. Zhou, D. Hunt, and Y. -H. Kuo, 2009: Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data. Geophysical Research Letters, 36, L17807, doi:10.1029/2009GL038712.
Date:2009-09-09
Resource Type:article
Title:Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data
Abstract: Temperature profiles derived from Global Positioning System (GPS) Radio Occultation (RO) data from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission are compared with those from four types of radiosonde systems from 12 to 25 km to assess the performance of these radiosonde systems in the upper troposphere and lower stratosphere. Results show that temperature measurements from the Vaisala-RS92 and Shanghai radiosonde systems agree well with those of COSMIC with a close-to-zero mean difference. Large temperature biases are shown for the MRZ and VIZ-B2 radiosonde systems relative to COSMIC, which are probably caused by diurnal radiative effects. In addition, we show that the temperature measurements from a new Chinese radiosonde system are improved compared to those of an older system through a comparison with COSMIC measurements.
Peer Review:Refereed
Copyright Information:An edited version of this paper was published by AGU. Copyright 2009 American Geophysical Union.
OpenSky citable URL: ark:/85065/d7hx1dz0
Publisher's Version: 10.1029/2009GL038712
Author(s):
  • Wenying He - NCAR/UCAR
  • Shu-peng Ho - NCAR/UCAR
  • Hongbin Chen
  • Xinjia Zhou - NCAR/UCAR
  • Douglas Hunt - NCAR/UCAR
  • Ying-Hwa Kuo - NCAR/UCAR
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