Articles | Volume 10, issue 12
Atmos. Meas. Tech., 10, 4761–4776, 2017
https://doi.org/10.5194/amt-10-4761-2017

Special issue: Observing Atmosphere and Climate with Occultation Techniques...

Atmos. Meas. Tech., 10, 4761–4776, 2017
https://doi.org/10.5194/amt-10-4761-2017
Research article
08 Dec 2017
Research article | 08 Dec 2017

Correcting negatively biased refractivity below ducts in GNSS radio occultation: an optimal estimation approach towards improving planetary boundary layer (PBL) characterization

Kuo-Nung Wang et al.

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Cited articles

Alishouse, J. C., Snyder, S. A., Vongsathorn, J., and Ferraro, R. R.: Determination of oceanic total precipitable water from the SSM/I, IEEE T. Geosci. Remote, 28, 811–816, 1990.
Ao, C. O.: Effect of ducting on radio occultation measurements: an assessment based on high-resolution radiosonde soundings, Radio Sci., 42, RS2008, https://doi.org/10.1029/2006RS003485, 2007.
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Beljaars, A. C. M. and Viterbo, P.: Role of the boundary layer in a numerical weather prediction model, Clear and Cloudy Boundary Layers, edited by: Holtslag, A. A. M. and Duynkerke, P. G., Royal Netherlands Academy of Arts and Sciences, 287–304, 1998.
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Short summary
Refractivity retrievals from GNSS radio occultation (RO) are known to be negatively biased within the planetary boundary layer (PBL). We propose an optimization-based reconstruction method in this paper to correct the negative bias with external measurements of precipitable water (PW). Our results show that the proposed method can greatly reduce the bias and better characterize the PBL.