Articles | Volume 36, issue 4
https://doi.org/10.5194/angeo-36-969-2018
https://doi.org/10.5194/angeo-36-969-2018
Regular paper
 | 
09 Jul 2018
Regular paper |  | 09 Jul 2018

Assessing water vapor tomography in Hong Kong with improved vertical and horizontal constraints

Pengfei Xia, Shirong Ye, Peng Jiang, Lin Pan, and Min Guo

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Cited articles

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CDAAC: COSMIC Radio Occultation data, available at: http://cosmic-io.cosmic.ucar.edu/cdaac/index.html, last access: 20 October 2017. 
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Short summary
We proposed a new method to determine the scale height of water vapor, which will improve the quality of vertical constraints. Then, the smoothing factor in the horizontal constraint was determined based on ERA-Interim products. The evaluation results show that the water vapor density quality obtained by the optimized technique is 13.8 % better below 3.8 km and 8.1 % better above 3.8 km than that obtained by the traditional technique.