Articles | Volume 19, issue 14
https://doi.org/10.5194/acp-19-9541-2019
https://doi.org/10.5194/acp-19-9541-2019
Research article
 | 
29 Jul 2019
Research article |  | 29 Jul 2019

Sensitivity of GPS tropospheric estimates to mesoscale convective systems in West Africa

Samuel Nahmani, Olivier Bock, and Françoise Guichard

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Subject: Clouds and Precipitation | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Adams, D. K., Fernandes, R. M., Kursinski, E. R., Maia, J. M., Sapucci, L. F., Machado, L. A., Vitorello, I. , Monico, J. F., Holub, K. L., Gutman, S. I., Filizola, N., and Bennett, R. A.: A dense GNSS meteorological network for observing deep convection in the Amazon, Atmos. Sci. Lett., 12, 207–212, https://doi.org/10.1002/asl.312, 2011. 
Adams, D. K., Minjarez, C., Serra, Y., Quintanar, A., Alatorre, L., Granados, A., Vázquez, E., and Braun, J.: Mexican GPS Tracks Convection From North American Monsoon, Eos Trans. AGU, 95, 61–68, https://doi.org/10.1002/2014EO070001, 2014. 
Altamimi, Z., Rebischung, P., Metivier, L., and Collilieux, X.: ITRF2014: a new release of the International Terrestrial Reference Frame modeling nonlinear station motions, J. Geophys. Res.-Sol. Ea., 121, 6109–6131, https://doi.org/10.1002/2016JB013098, 2016. 
American Meteorological Society: Mesoscale Convective System, Glossary of Meteorology, available at: http://glossary.ametsoc.org/wiki/Mesoscale_convective_system (last access: 27 November 2018), 2015. 
Bar-Sever, Y. E., Kroger, P. M., and Borjesson, J. A.: Estimating horizontal gradients of tropospheric path delay with a single GPS receiver, J. Geophys. Res., 103, 5019–5035, https://doi.org/10.1029/97JB03534, 1998. 
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Short summary
A mesoscale convective system (MCS) is a cloud system that occurs in connection with an ensemble of thunderstorms and produces a contiguous precipitation area of the order of 100 km or more. Numerous questions related to MCSs remain poorly answered (e.g., their life cycle, and interactions between physical processes and atmospheric circulations). This work shows how a GPS technique can provide relevant and complementary information on MCSs passing over or in the vicinity of observation stations.
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