Articles | Volume 14, issue 7
Atmos. Meas. Tech., 14, 4857–4877, 2021
https://doi.org/10.5194/amt-14-4857-2021

Special issue: Analysis of atmospheric water vapour observations and their...

Atmos. Meas. Tech., 14, 4857–4877, 2021
https://doi.org/10.5194/amt-14-4857-2021

Research article 09 Jul 2021

Research article | 09 Jul 2021

Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data

Ramashray Yadav et al.

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Short summary
We performed an intercomparison of seasonal and annual studies of retrievals of integrated precipitable water vapor (IPWV) carried out by INSAT-3DR satellite-borne infrared radiometer sounding and CAMS reanalysis data with ground-based Indian GNSS data. The magnitude and sign of the bias of INSAT-3DR and CAMS with respect to GNSS IPWV differs from station to station and season to season. A statistical evaluation of the collocated data sets was done to improve day-to-day weather forecasting.