Krishnendu Mandal

Detection and Characterization of Thermal Rossby Waves in the Solar Interior

Krishnendu Mandal

Abstract Several classes of inertial waves have recently been detected in the Sun, with their dispersion relations providing a robust diagnostic for characterizing these modes. Numerical simulations predict that the frequencies of thermal Rossby waves increase with azimuthal order at low m …

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Helioseismic evidence that the solar dynamo originates near the tachocline

Krishnendu Mandal, Alexander G. Kosovichev

The exact location of the solar dynamo remains uncertain-whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline - a region of sharp transition in the solar rotation, located at the base of the …

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Helioseismic Evidence That the Solar Dynamo Originates near the Tachocline

Krishnendu Mandal, А. Г. Косовичев

The exact location of the solar dynamo remains uncertain--whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline, a region of sharp transition in the solar rotation, located at the base of the convection …

Helioseismic Evidence That the Solar Dynamo Originates near the Tachocline

Krishnendu Mandal, А. Г. Косовичев

The exact location of the solar dynamo remains uncertain--whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline, a region of sharp transition in the solar rotation, located at the base of the convection …

Investigating Variations in Solar Differential Rotation by Helioseismology

Krishnendu Mandal, А. Г. Косовичев, В. В. Пипин, S. G. Korzennik

Abstract Helioseismic signatures of dynamo waves have recently been discovered in variations of the solar differential rotation, offering valuable insights into the type of dynamo mechanism operating in the solar convection zone. To characterize these variations, we analyze p -mode frequency-splitting data …

Performance of Vetiver System in Overburden Dump Reclamationof SECL Coal-Mine in India: Influence of Soil Nutrients and Seasonal Variations

Om Narayan Singh, Krishnendu Mandal

Vetiver grass (Chrysopogon zizanioides) is recognised for its adaptability in adverse conditions, making it a suitable choice for reclaiming overburden dumps. However, its effectiveness across different seasons and soil nutrient conditions remains underexplored. A limited understanding of nutrient dynamics in dump spoils …

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Investigating Variations in Solar Differential Rotation by Helioseismology

Krishnendu Mandal, А. Г. Косовичев, В. В. Пипин, S. G. Korzennik

Helioseismic signatures of dynamo waves have recently been discovered in variations of the solar differential rotation, offering valuable insights into the type of dynamo mechanism operating in the solar convection zone. To characterize these variations, we analyze p-mode frequency-splitting data estimated using …

Structure and Dynamics of the Sun’s Interior Revealed by the Helioseismic and Magnetic Imager

А. Г. Косовичев, Sarbani Basu, Yuto Bekki, Juan Camilo Buitrago‐Casas et autres

Abstract High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the solar interior structure and dynamics, revealing a tremendous complexity of the physical processes inside the Sun. We present …

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Structure and Dynamics of the Sun's Interior Revealed by Helioseismic and Magnetic Imager

А. Г. Косовичев, Sarbani Basu, Yuto Bekki, Juan Camilo Buitrago‐Casas et autres

High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the solar interior structure and dynamics, revealing a tremendous complexity of the physical processes inside the Sun. We present an overview …

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Dysarthric speech recognition: an investigation on using depthwise separable convolutions and residual connections

Seyed Reza Shahamiri, Krishnendu Mandal, Sudeshna Sarkar

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A comparative study of European and Japanese pile design codes based on a test site data

Krishnendu Mandal, Shih‐Wei Lin, G. Belokas, Neritan Shkodranı et autres

Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation

Krishnendu Mandal, А. Г. Косовичев, В. В. Пипин

Abstract Solar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout the convection zone. Given the challenge of measuring magnetic fields in subsurface layers, understanding deep torsional …