Estimation of precipitable water vapour from GPS during winter season 2003

Authors

  • R. K. GIRI India Meteorological Department, New Delhi – 110 003, India
  • B. R. LOE India Meteorological Department, New Delhi – 110 003, India
  • N. PUVIARSON India Meteorological Department, New Delhi – 110 003, India
  • S. S. BHANDARI India Meteorological Department, New Delhi – 110 003, India
  • R. K. SHARMA NAS Degree College Meerut (U.P.)

DOI:

https://doi.org/10.54302/mausam.v57i2.479

Keywords:

Precipitable Water Vapour (PWV), GPS, Zenith Total Delay (ZTD), Zenith Wet Delay (ZWD)

Abstract

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The distribution of water vapour in atmosphere is highly spatial and temporal variable. It plays a key role in many atmospheric processes. The total integrated water vapour or equivalent precipitable water vapour (PWV) can be estimated with the help of Global Positioning System (GPS) Zenith Total Delay (ZTD) data. The value of Zenith Hydrostatic Delay (ZHD) is modeled and subtracting from ZTD will give Zenith wet delay (ZWD). Consequently, the estimated ZWD values will provide PWV in mm almost in a continuous manner. In this paper an attempt has been made for the estimation of PWV in mm during winter season 2003 for New Delhi and Indian Institute of Science (IISC), Bangalore stations using GPS data. The result shows fairly good agreement with the radio-sonde data. 

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Published

03-04-2006

How to Cite

[1]
R. K. . GIRI, B. R. . LOE, N. . PUVIARSON, S. S. . BHANDARI, and R. K. . SHARMA, “Estimation of precipitable water vapour from GPS during winter season 2003”, MAUSAM, vol. 57, no. 2, pp. 323–328, Apr. 2006.

Issue

Section

Research Papers

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