Increasing pre-monsoon rain days over four stations of Kerala, India

• Autorzy: Umakanth Nandivada , Kalyan S. S. S. , Satyanarayana Gubbala China , Gogineni Rajesh , Nagarjuna Ayachithula , Naveen Ramisetti , Rao Kokkerapati Ramachandra , Rao Myla Chimpiri

Identyfikatory

DOI

10.1007/s11600-022-00742-6

• Języki publikacji: EN

Abstrakty

EN

The climate of India varies greatly by region, as seen by wind patterns, temperature and rainfall, seasonal rhythms and the degree of wetness or dryness. During the several seasons, the weather conditions change. Changes in meteorological factors (temperature, pressure, wind direction and velocity, humidity and precipitation, etc.) cause these changes. The pre-monsoon season (PRMS) comprises of March, April and May months. The precipitation patterns observed in PRMS are crucial because it affects a variety of crop-related operations across the country. The lifting index (LI), K index (KI), total totals index (TTI), humidity index (HI), improved k index, improved total totals index, total precipitable water (TPW) and convective available potential energy (CAPE) are studied at four locations in Kerala during PRMS. These variables were examined on rain day (RD)’s and no rain day (NRD)’s. The four stations we chose for our investigation were Thiruvananthapuram, Kochi, Alappuzha and Kannur. The GPM IMERG (Integrated Multi-satellite Retrievals for Global Precipitation Measurement) daily rainfall datasets have been utilized for this analysis. Fifth-generation ECMWF atmospheric reanalysis (ERA5) daily data for the PRMS of 2021 were used to measure all rainfall-related variables. During PRMS, all metrics clearly distinguished the RD and NRD. The rise in relative humidity and observations of dew point depression indicates that there is enough moisture for convective rain. In May, there were more negative VV values than in April.

Słowa kluczowe

EN

dew point depression; precipitation; convective system; analysis

PL

obniżenie punktu rosy; opad atmosferyczny; system konwekcyjny; analiza

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2022
• Tom: Vol. 70, no 2
• Strony: 963--978
• Opis fizyczny: Bibliogr. 49 poz.

Twórcy

autor

Umakanth Nandivada

• Department of ECE, Dhanekula Institute of Engineering and Technology, Vijayawada 521139, India

autor

Kalyan S. S. S.

• Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522502, India

autor

Satyanarayana Gubbala China

• Center for Atmospheric Science, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522502, India

autor

Gogineni Rajesh

• Department of ECE, Dhanekula Institute of Engineering and Technology, Vijayawada 521139, India

autor

Nagarjuna Ayachithula

• Department of H&S (Physics), Teegala Krishna Reddy Engineering College, Meerpet, Hyderabad 500097, India

autor

Naveen Ramisetti

• Department of Physics, Krishna University, Machilipatnam 521001, India

autor

Rao Kokkerapati Ramachandra

• Department of Physics, Government College (A), Rajamahendravaram 533105, India

autor

Rao Myla Chimpiri

• Department of Physics, Andhra Loyola College, Vijayawada 520008, India

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).