Tropical tropopause dynamics (TTD) campaigns over Indian region: An overview

MV Ratnam, SV Sunilkumar, K Parameswaran… - Journal of Atmospheric …, 2014 - Elsevier
It is widely accepted that the tropical tropopause is closely linked to climate change. Several
campaigns have already been conducted and also are being planned to address various …

Middle atmospheric structure, dynamics, and coupling from three decades of Indian MST radar and complimentary observations: An overview

MV Ratnam - Advances in Space Research, 2024 - Elsevier
Abstract The genesis for Indian Mesosphere-Stratosphere-Troposphere (MST) radar came
from the Indian Middle Atmospheric Programme (IMAP) to study the middle atmospheric …

Characteristics of convection and advection associated with the Asian Summer Monsoon Anticyclone

PP Musaid, SK Mehta, S Tegtmeier, M Fujiwara… - Climate Dynamics, 2024 - Springer
Abstract The Asian Summer Monsoon Anticyclone (ASMA) is a gateway for atmospheric
pollutants transported to the upper troposphere and lower stratosphere (UTLS). Thus, it is …

Characteristics of turbulence in the troposphere and lower stratosphere over the Indian Peninsula

SV Sunilkumar, M Muhsin, K Parameswaran… - Journal of Atmospheric …, 2015 - Elsevier
Characteristics of turbulence in the troposphere and lower stratosphere at Trivandrum (8.5°
N, 76.9° E) and Gadanki (13.5° N, 79.2° E), two tropical stations located in the Indian …

Regional distribution of deep clouds and cloud top altitudes over the Indian subcontinent and the surrounding oceans

S Meenu, K Rajeev, K Parameswaran… - Journal of Geophysical …, 2010 - Wiley Online Library
The Bay of Bengal (BoB) and the east equatorial Indian Ocean are among the most intense
deep convective regions over the tropics. Long‐term monthly mean distributions of deep …

Observational evidence of the relationship between the tropical tropopause and tropical easterly jet streams over the Indian monsoon region

SK Mehta - Atmospheric Science Letters, 2024 - Wiley Online Library
This paper presents the first quantitative relationship between the cold point tropopause
(CPT) and tropical easterly jet (TEJ) using radiosonde observations over Gadanki (13.45° N …

Indian summer monsoon onset signatures on the tropical tropopause layer

S RavindraBabu, M Venkat Ratnam… - Atmospheric Science …, 2019 - Wiley Online Library
Over the Indian region, changes in the tropopause parameters during pre‐monsoon to
monsoon seasons have been reported. However, no study exists to date dealing with the …

Variability of the tropical tropopause over Indian monsoon region

SK Mehta, M Venkat Ratnam… - Journal of Geophysical …, 2010 - Wiley Online Library
The variations of the cold point tropopause (CPT), convective tropopause (COT), lapse rate
tropopause (LRT), and tropical tropopause layer (TTL) from subdaily to seasonal timescales …

Effect of tropical cyclones on the tropical tropopause parameters observed using COSMIC GPS RO data

S Ravindra Babu, M Venkat Ratnam… - Atmospheric …, 2015 - acp.copernicus.org
Tropical cyclones (TCs) are deep convective synoptic-scale systems that play an important
role in modifying the thermal structure, tropical tropopause parameters and hence also …

Thermal Characteristics of the Extreme Cases of Tropopause Over the Tropics

P Purushotham, SK Mehta, S Ali… - International Journal …, 2024 - Wiley Online Library
The anomalous variability of extreme cases of the tropical tropopause provides insight into
the stratosphere‐troposphere exchange process crucial for understanding climate change …