Study of GPS-retrieved integrated precipitable water over Bangalore

Jaiswal, Rajasri Sen; Mukundan, M.; Thirumala, Lakshmi K

doi:10.54302/mausam.v72i3.1306

Cited by 1 publication

(2 citation statements)

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“…Studies found good agreement between the radiosonde-retrieved and GNSS-retrieved PW(Huang et al 2021), and GPS-retrieved PW(Choy et al 2015) Jaiswal et al (2021). found a very good agreement between the GPS-based IPWV and that retrieved from the radiosonde over Bangalore.4 ConclusionsThe solar cycle controls IPWV, as evident from TSI vs. IPWV relation.…”

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confidence: 85%

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Estimation of IRNSS-retrieved integrated precipitable water over a few locations in India

Jaiswal¹,

Lakshmi²

2022

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We estimated integrated precipitable water (IPWV) over a few locations in India, namely Bhubaneswar, Gadanki, Goa, Kanakapura, and Kolkata, from the tropospheric slant delay (TSD) obtained from the Indian Regional Navigation Satellite System (IRNSS). We attempted to find the factors that control the IPWV. We show that the total solar irradiance (TSI) controls IPWV beyond doubt. The latter is best explained as a function of surface temperature (ST), surface pressure (SP), relative humidity (RH), and TSI. We present the functional relations between these meteorological elements and IPWV. Besides, we discuss the evolution of IPWV with the advance of northeast and southwest monsoon. The locations on the East Coast show characteristics of meteorological elements different from locations on the West Coast of India. The dynamicity of the mutual relations between these elements depends on the season and geography of a location. IRNSS-retrieved IPWV along the zenith over a location shows a good agreement with radiosonde-retrieved IPWV.

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confidence: 85%

“…A study (Jaiswal et al 2021) shows that as the angle of elevation decreases, the IPWV increases. This is because a lesser elevation implies a larger path length, which means more moisture and hence, a larger delay.…”

Section: Tsd and Ipwvmentioning

confidence: 99%