Qualification: 
Ph.D
jyotirmayees@am.amrita.edu

Dr. Jyotirmayee Satapathy currently serves as Assistant Professor in the Department of Physics, School of Arts & Sciences, Amritapuri. Dr. Jyotirmayee obtained her Ph.D. from Osmania University, Hyderabad in the year 2013 as a JRF/SRF from RCI, DRDO, Hyderabad in the field of experimental condensed matter physics (Nb2O6 ceramics synthesis and characterization) after completing her master’s degree in Physics from NIT Rourkela in 2006. Dr. Satapathy moved to SAC, ISRO, Ahmedabad and IISc, Bangalore subsequently to pursue post-doctoral fellowship in the area of satellite meteorology and remote sensing of atmospheric observations. Currently, her research interests include Ferrites as well as radiative transfer of atmospheric parameters.

Publications

Publication Type: Journal Article

Year of Publication Title

2021

Jyotirmayee Satapathy and Thapliyal, P. K., “Retrieval of cloud-cleared radiances using numerical weather prediction model-analysis and forecast fields for INSAT-3D sounder longwave window channel observations”, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 217, p. 105602, 2021.[Abstract]


Estimation of cloud-cleared radiances, without utilizing any supplementary sensors for INSAT-3D Sounder InfraRed window observations is presented here. This method utilizes simulated clear sky radiances by radiative transfer for TOVS (RTTOV) tool, with the help of global numerical weather prediction (NWP) models analysis and forecast fields, unlike the previously reported approaches where observations from auxiliary/collocated sensors are used. The validation of these derived cloud-cleared radiances is carried out with the already existing operational Level 2 (L2) cloud-cleared radiances of Atmospheric Infra-Red Sounder (AIRS) and Infrared Atmospheric Sounding Interferometer (IASI), where the retrieval is carried out utilizing auxiliary Microwave Sounders. Also, a comparative study with the optimal cloud-clearing technique has been carried out here, where the retrieval is done by utilizing the clear sky radiances by means of collocated high-resolution InfraRed observations with the help of auxiliary sensors. The results indicate the scope and promising potential of this technique towards the future operational endeavor of deriving the cloud-cleared radiances without any assistance of co-existing auxiliary hardware system.

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PDF iconretrieval-cloud-cleared-radiances-using-numerical-weather-prediction-model-analysis.pdf

2020

S. G. Nair, Jyotirmayee Satapathy, and N. Kumar, P., “Infuence of synthesis, dopants, and structure on electrical properties of bismuth ferrite (BiFeO3)”, Applied Physics A , vol. 126, p. 836, 2020.[Abstract]


Bismuth ferrites (BFO) nanomaterials are one of the promising materials to provide applications in the electrical world for its unique multiferroic properties. The evolution in its research from the pure crystals to doped and co-doped forms has shown mankind the diversity of its properties and subsequent useful applications. The peculiarities of ferroelectric and ferromagnetic properties, as observed in these multiferroics, are the result of the structural perturbations which is due to the nature of the doping element and diferent synthesis mechanisms. The enhanced magnetoelectric coefcient, high dielectric constant, and improved ferroelectricity of doped BFO open the use in non-volatile memory devices. A consolidation of the noteworthy changes reported in the structural and electrical properties of BFO bulk ceramics, popular category of multiferroics so far is reviewed here in brief. This review mainly focuses on modifcations seen in ferroelectric properties with respect to doping at Bismuth site, Iron site, and both or co-doping. As the modifcations are mostly due to structural changes, structural and morphological changes occurring due to doping are also covered briefy

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2020

Jyotirmayee Satapathy and Bhat, G. S., “Studies of extreme gust storm events in Bengaluru, India ”, Current Science, vol. 119, no. 2, 2020.[Abstract]


Many parts of India experience extreme gust and dust storms during the pre-monsoon months of April and May. These events can cause lot of damage to plants and properties. Despite their annual recurrences, their physical nature (e.g. temporal and spatial scales) and mechanism remain unaddressed in the Indian context. Here we present some case studies of pre-monsoon, damage-causing extreme winds reported from Bengaluru, India, in the media, and explore their nature, initiation and propagation using in situ observations, and INSAT-3D and INSAT-3DR infrared channel imageries. These gust events occurred on 24 April 2018, 7 and 26 May as well as 2 June 2019. Among these, the 24 April event was the strongest and the instantaneous wind speed exceeded 75 kmph. It is shown that all these cases share some common features. The first is the arrival of a pool of cold air with its minimum temperature that is at least 10 K less compared to what was prevailing about 15 min earlier. The second is the high rainfall rate; 1 min accumulation-based rainfall rate exceeds 100 mm h–1. Extreme winds are short-lived and wind speeds exceeding 50 kmph last for less than 5 min. Satellite imageries of the corresponding period show that the associated clouds were organized with a spatial scale of at least several tens of kilometres.

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2020

P. Kumar Naini, Jyotirmayee Satapathy, Abhinav, E. Meher, Srinivas, A., and Raja, M. Manivel, “Thermomagnetic Properties of Dy0.9Ho0.1MnO3 Multiferroics”, Physical Status Solidi (A): Applications and Materials Science. , 2020.[Abstract]


Holmium (Ho)‐doped DyMnO3 multiferroic compound is prepared using conventional solid‐state reaction route, and X‐ray powder diffraction analysis is conducted to confirm the single‐phase structure. Coexistence of magnetic and electric behavior in case of multiferroics is analyzed by heat capacity measurements from low temperature (2 K) to room temperature (300 K) under different magnetic fields. Herein, the existence antiferromagnetic and ferroelectric phase transitions in this compound at <10, 18, and 40 K, respectively, is revealed, which are attributed to the structural ordering or alignment of Mn3+ ions and R3+ ions. The magnetocaloric effect of this sample is also studied from heat capacity measurements. A maximum magnetic entropy change (ΔS)M of ≈6.3 J kg−1 K−1 and adiabatic temperature change (ΔT)ad of 3–4 K is achieved in 0.1Ho‐doped compound for a magnetic field change of 5 T and useful for low‐temperature magnetic refrigeration applications.

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2020

Jyotirmayee Satapathy, “Extreme cyclonic storm monitoring using INSAT-3D/3DR-hyperspectral sounder observations”, Remote Sensing Applications: Society and Environment, vol. 19, p. 100339, 2020.[Abstract]


Space-based geostationary operational sounders viz. INSAT-3D and INSAT-3DR equipped with hyperspectral sounding capability provide various retrieved atmospheric parameters. In this study, the observations taken from these satellites are utilized to analyze two recent extreme tropical cyclonic events, ‘FANI’ falling into category 4 hurricane and ‘VARDAH’, under category 2, severe cyclonic storms. Results suggest that these extreme events and their evolution are well captured by the INSAT 3D/3DR observations which includes brightness temperatures of different IR channels, temperature and humidity profiles along with atmospheric stability indices and parameters, precipitable water, geo-potential height etc. Emphasis is given to ensure that INSAT-3D/3DR are well equipped to monitor and assess such extreme events with a good measure. This analysis projects them as potential utility to assist studies on atmospheric thermodynamics of short-lived extreme environments. The goal of this work is to demonstrate the scope of new generation geostationary satellites with hyperspectral data products in benefiting now casting or real-time weather monitoring program.

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2020

N. Pavan Kumar, Jyotirmayee Satapathy, Durgesh Singh, Manju Mishra Patidar, V. Ganesan, A. Srinivas, and M. Manivel Raja, “Magnetocaloric Properties of Gd1−xHoxMnO3 Multiferroic Compounds”, Journal of Low Temperature Physics, vol. 200, no. 1, pp. 40 - 50, 2020.[Abstract]


A series of Gd1−xHoxMnO3 (x = 0, 0.1 and 0.2) compounds known to exhibit multiferroic properties has been investigated for their structural, magnetic and magnetocaloric properties. X-ray diffraction analysis confirms the presence of single orthorhombic phase at room temperature in all the compositions. Low temperature magnetocaloric properties of these compounds have been studied through specific heat measurements in the temperature range of 0–80 K under different magnetic fields of 0, 2 and 5 T. These studies also revealed the existence of Mn3+ ordering transition and lock-in transition (Tlock) near 40 K and 20 K, respectively. These compounds displayed antiferromagnetic (AFM) ordering of Gd3+ ions at low temperatures below 10 K. The magnetocaloric effect has been quantified in terms of the magnetic entropy change (ΔS)M and adiabatic temperature change (ΔT)ad in the vicinity of AFM transitions.

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2019

D. S. R., Nair, S. G., Jyotirmayee Satapathy, and N. Kumar, P., “Structural and spectroscopic characterization of bismuth-ferrites”, AIP Conference Proceedings, vol. 2166, no. 1, p. 020017, 2019.[Abstract]


BiFeO3 based materials are currently one of the most studied multiferroics due to their possible applications at room temperature. In this study two sets of BFO are synthesized at different sintering temperatures i.e. BFO-1 and BFO-2, synthesized at a calcination temperature of 650° C and sintering temperature of 750° C and 820° C respectively. The structural characterization is studied using XRD. BFO-2 which is sintered at a temperature of 820° C shows much better properties as well as rhombohedral structure in comparison to the hexagonal counterpart in case of BFO-1. In addition to this the spectroscopic diagnosis using FTIR and Raman spectroscopic techniques are also highlighted here.

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2019

P. N. Kumar, Durgesh Singh, Manju Mishra Patidar, Jyotirmayee Satapathy, V. Ganesan, Babu, P. D., A. Srinivas, and M. Manivel Raja, “Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound”, Applied Physics A, vol. 125, p. 487, 2019.[Abstract]


Polycrystalline HoMnO3 (HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with P63cm space group. Low-temperature magnetization measurements showed an anomaly at 4 K, whereas the heat capacity measurements carried out under 0 T, 2 T, 5 T and 9 T fields in the temperature region of 2–150 K exhibited three different transitions at 72 K, 33 K and 5 K. These transitions are attributed to the ordering of Mn3+, spin reorientation of Mn3+ ions and Ho3+ ions, respectively. Magnetic contribution to the total entropy change was also evaluated at different magnetic fields. Magnetocaloric effect (MCE) parameters such as isothermal entropy change of 2 J/kg-K, 9 J/kg-K and 16 J/kg-K were obtained at around 10 K for a magnetic field change of 2T, 5T and 9T, respectively. The adiabatic temperature change (ΔT) values are found to be 0.6 K, 3.5 K and 8.5 K, whereas the relative cooling power (RCP) is found to be 4 J/kg, 120 J/kg and 360 J/kg under 2T, 5T and 9T magnetic field change, respectively.

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2018

D. N. Piyush, Jyotirmayee Satapathy, and Srinivasan, J., “Remote Sensing of Ice Water Path for Mega-Tropiques-SAPHIR”, Asia-Pacific Journal of Atmospheric Sciences (APJAS), pp. 1–10, 2018.[Abstract]


This study derives the ice water path of the atmospheric column from the microwave sounder SAPHIR onboard Megha-Tropiques. SAPHIR (Sondeur Atmosphérique du Profil d’Humidité Intertropicale par Radiométrie) is a cross-track, multichannel microwave humidity sounder with six channels ranging from 183.3 ± 0.2 to 183.3 ± 11 GHz near the 183.31 GHz water vapor absorption line. It measures the earth emitted radiation at these six frequencies. In this paper, Concurrent and collocated observations of Channel 183.31 ± 6.6 GHz, and 183.3 ± 11 GHz from SAPHIR and IWP (Ice water Path) from CloudSat have been used in the development the algorithm. A total of five sets of neural network model, each for 10° of incidence angle of SAPHIR have been developed. The model shows a correlation of 0.83 and RMSE of 195 g/m2 with an independent test dataset. The validation of the algorithm has been done by comparing the retrieval with various satellite derived IWP products such as CloudSat, GMI (Global precipitation measuring mission Microwave Imager) and MSPPS (Microwave Surface and Precipitation Products System). The instantaneous comparisons of IWP over a cyclonic storm ROANU demonstrate a good agreement between NN (Neural Network) derived IWP and CloudSat. A probability distribution of IWP indicates consistency between SAPHIR and CloudSat. A comparison of zonal mean between all the IWP products shows that SAPHIR performs better than GMI, and MSPPS.

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2017

Jyotirmayee Satapathy and Jangid, B. Prakash, “Monitoring a local extreme weather event with the scope of hyperspectral sounding”, Meteorology and Atmospheric Physics, 2017.[Abstract]


Operational space-based hyperspectral Infrared sounders retrieve atmospheric temperature and humidity profiles from the measured radiances. These sounders like Atmospheric InfraRed Sounder, Infrared Atmospheric Sounding Interferometer as well as INSAT-3D sounders on geostationary orbit have proved to be very successful in providing these retrievals on global and regional scales, respectively, with good enough spatio-temporal resolutions and are well competent with that of traditional profiles from radiosondes and models fields. The aim of this work is to show how these new generation hyperspectral Infrared sounders can benefit in real-time weather monitoring. We have considered a regional extreme weather event to demonstrate how the profiles retrieved from these operational sounders are consistent with the environmental conditions which have led to this severe weather event. This work has also made use of data products of Moderate Resolution Imaging Spectroradiometer as well as by radiative transfer simulation of clear and cloudy atmospheric conditions using Numerical Weather Prediction profiles in conjunction with INSAT-3D sounder. Our results indicate the potential use of high-quality hyperspectral atmospheric profiles to aid in delineation of real-time weather prediction. More »»

2014

Jyotirmayee Satapathy, Thapliyal, P. K., Shukla, M. V., and Kishtawal, C. M., “Synergistic use of Imager Window Observations for Cloud-Clearing of Sounder Observation for INSAT-3D”, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol. 7, 2014.[Abstract]


The retrieval of atmospheric temperature and water vapor profiles from infrared Sounder are severely limited by the presence of cloud. Therefore, retrieval from infrared sounding observations is performed only over clear-sky atmospheric conditions. The probability of finding a clear-sky pixel at spatial resolution of 10 km is found to be very small globally. This study presents a quantitative analysis of the clear-sky probability that is carried out for different months over the Indian region for INSAT-3D Sounder. The probability of a clear-sky is found to be ~7% for the field of view of 10 km corresponding to the INSAT-3D Sounder. This statistical analysis is established using MODIS cloud mask having 95% confidence level at 1 km resolution spread in the region between 50E-110E and 30S-30N. This necessitates cloud clearing to remove the effect of partial clouds in the Sounder FOV to provide a clear-sky equivalent sounding retrieval. Various methods were explored to derive the cloud-cleared radiances using supplementary information such as high resolution infrared or microwave observations. This study presents an effort to use the existing traditional method to derive optimal cloudcleared radiances for INSAT-3D Sounder, by estimating the fractional cloud cover using collocated high resolution INSAT-3D Imager window channel observation. The final Sounder cloud-cleared radiances have been validated with the operational AIRS L2 cloud-cleared radiance products. Nevertheless, the statistical analysis of clear-sky probability over Indian region also provides a significant insight towards the dependency of spatial resolution and the considerable field-of-regard (FOR) in obtaining the clear-sky area in the satellite observations. This, in a way, necessitates the cloud-clearing for coarser resolution sensors and at the same time, states the benefits of using very high resolution sensors. It has been observed that FOV of 1km and by choosing a reasonably good FOR can eliminate the cloudy-sky hindrances by increasing the probability of clear-sky from 5% to 50% More »»

2013

Jyotirmayee Satapathy and Reddy, M. V. Ramana, “Anomalous Thermal Behavior of CuxMg1-xNb2O6 (x=0,0.4,0.6,1) for LTCC Substrate”, International Journal of Scholarly and Scientific Research & Innovation, vol. 7, no. 1, 2013.[Abstract]


LTCC (Low Temperature Co-fired Ceramics) being the most advantageous technology towards the multilayer substrates for various applications, demands an extensive study of its raw materials. In the present work, a series of CuxMg1-xNb2O6 (x=0,0.4,0.6,1) has been prepared using sol-gel synthesis route and sintered at a temperature of 900°C to study its applicability for LTCC technology as the firing temperature is 900°C in this technology. The phase formation has been confirmed using X-ray Diffraction. Thermal properties like thermal conductivity and thermal expansion being very important aspect as the former defines the heat flow to avoid thermal instability in layers and the later provides the dimensional congruency of the dielectric material and the conductors, are studied here over high temperature up to the firing temperature. Although the values are quite satisfactory from substrate requirement point view, results have shown anomaly over temperature. The anomalous thermal behavior has been further analyzed using TGDTA. More »»

2013

Jyotirmayee Satapathy and Reddy, M. V., “Microwave dielectric studies of some low temperature sintered doped niobates for LTCC application”, Journal of the Australian Ceramic Society, vol. 49, pp. 68-73, 2013.[Abstract]


Low temperature cofired ceramics (LTCC) is a multilayer substrate manufacture technology which demands certain characteristic dielectric material to provide advantageous outcomes in the high frequency application unlike other technology. In view of that some doped niobates viz. CuxMg1-xNb2O6 (x=0,0.2,0.4,0.6,0.8,1) and CaxMg1-xNb2O6 (x=0,0.2,0.4,0.6,0.8,1) columbites have been prepared using sol-gel technique. The samples were sintered at 900 degrees C for 6 hours. Structural characterization of the prepared samples has been done using X-ray diffraction (XRD) method. Microwave dielectric properties like dielectric constant, Qf values and tau(f) values over Ku-band for all the compositions have been measured using a network analyser. It has been found out that doping effects change in properties significantly as a concurrence of structural ordering change and this ensures the suitability towards LTCC applications. Moreover, the low dielectric loss of these materials has shown an advantage. More »»

2013

Jyotirmayee Satapathy and Reddy, M. V. Ramana, “Study of Elastic Properties of Ni0.5A0.5Nb2O6 for LTCC”, Journal of Material Research and Technology, vol. 2, 2013.

2013

Jyotirmayee Satapathy and Reddy, M. Venkata Ra, “Thermo-mechanical properties of CuxMg1−xNb2O6 (x = 0, 0.2, 0.4,0.6, 0.8, 1) for low temperature cofired ceramics”, European Physical Journal of applied physics, 2013.[Abstract]


A series of CuxMg1–xNb2O6 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) columbites were prepared using the sol-gel technique. The samples were sintered at 900 °C for 6 h. The prepared samples were structurally characterized using X-ray diffraction (XRD) method. To study their applicability in low temperature cofired ceramic (LTCC) technology, elastic properties have been characterized for mechanical compatibility. Elastic behavior was investigated at 300K, employing ultrasonic pulse-transmission technique at 1 MHz. The values of elastic moduli and acoustic Debye temperature (µD) were computed from longitudinal and shear velocities. The measured values were corrected to zero porosity using Hasselman and Fulrath's formula. The elastic constants of the samples, estimated using Modi's heterogeneous metal-mixture rule, were also reported. The variation of elastic moduli was interpreted in terms of strength of interatomic bonding. Microstructure of these samples was studied using the FESEM (field emission scanning electron microscopy) technique. Mechanical properties including yield strength, tensile strength and thermal stress resistance were calculated from thermal properties measured through thermal conductivity and thermal expansion coefficient. More »»

2013

M. .V.R.Reddy, .S.Samal, S., and Jyotirmayee Satapathy, “Synthesis and characterisation of MgxCu1–xNb2O6 (x=0, 0.2, 0.4, 0.6, 0.8, 1) for LTCC application”, Materials Research Innovations, vol. 17, 2013.

2012

Jyotirmayee Satapathy, “Elastic properties of Ni0.5A0.5Nb2O6 for LTCC”, International Conference on recent trends and materials; ICRAM, VIT, Vellore, India., 2012.

2012

Jyotirmayee Satapathy and Reddy, M. V., “Anomaly in thermal characterization of CaxMg1-xNb2O6 (x =0,0.4,0.6,1) towards LTCC applications”, Journal of Research in Physics, vol. 36, 2012.[Abstract]


Low temperature co-fired ceramics (LTCC), being the most advantageous technology related to the multilayer substrates for various applications, demands an extensive study of raw materials. In the present work, a series of CaxMg1−xNb2O6 (x =0, 0.4, 0.6, 1.0) were prepared using sol-gel synthesis route and sintered at a temperature of 900°C to study its applicability for LTCC technology. The phase formation has been confirmed using X-ray diffraction. Thermal properties like thermal conductivity and thermal expansion, which are very important aspects as the former defines the heat flow to avoid thermal instability in the layers and the latter provides the dimensional congruency of the dielectric material and the conductors, are studied here over high temperature range up to the firing temperature. Although the values are quite satisfactory from the application point view, the results have showed an anomaly over temperature. The anomalous thermal behavior was further analyzed using TG-DTA. More »»

2011

Jyotirmayee Satapathy and Reddy, M. V. Ramana, “Synthesis and ultrasonic properties of CaxMg1-xNb2O6 for LTCC”, International Conference on nano science and nano technology; ICONSET, vol. 7, 2011.

2011

Jyotirmayee Satapathy and Reddy, M. Venkata Ra, “Study of elastic moduli of low temperature sintered Ni0.5A0.5Nb2O6 for LTCC (A=Ca, Mg, Cu)”, IEEE Xplore digital library, 2011.[Abstract]


Ni0.5A0.5Nb2O6 (A=Ca, Mg, Cu) columbites have been prepared using sol–gel technique sintered at 900°C for 6h as per the firing temperature of LTCC. Structural characterization has been done using X-ray diffraction method and morphology by FESEM. Elastic properties have been characterized for mechanical compatibility toward the application in LTCC technology. Elastic moduli and acoustic Debye temperature were computed employing ultrasonic pulse transmission technique by measuring longitudinal and shear velocities. Porosity correction has been done using Hasselman and Fulrath's formula and estimation using Modi's heterogeneous metal-mixture rule. The variation of elastic moduli was interpreted in terms of strength of interatomic bonding. More »»

2011

Jyotirmayee Satapathy and Reddy, M. Venkata Ra, “Elastic Properties of CaxMgl- xNb206 for LTCC (x=0,0.2,0.4,0.6,0.8,1)”, IEEE Xplore digital library, pp. 360-363, 2011.[Abstract]


Ni0.5A0.5Nb2O6 (A=Ca, Mg, Cu) columbites have been prepared using sol–gel technique sintered at 900°C for 6h as per the firing temperature of LTCC. Structural characterization has been done using X-ray diffraction method and morphology by FESEM. Elastic properties have been characterized for mechanical compatibility toward the application in LTCC technology. Elastic moduli and acoustic Debye temperature were computed employing ultrasonic pulse transmission technique by measuring longitudinal and shear velocities. Porosity correction has been done using Hasselman and Fulrath's formula and estimation using Modi's heterogeneous metal-mixture rule. The variation of elastic moduli was interpreted in terms of strength of interatomic bonding.

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2011

Jyotirmayee Satapathy and Reddy, M. V. Ramana, “Dielectric and Thermal Studies of ANb2O6 (A=Ca, Mg, Cu, Ni) for LTCC Application”, International Journal of Applied Physics and Mathematics, vol. 7, 2011.[Abstract]


A series of ANb2O6 (A=Ca, Mg, Cu, Ni) columbites and 50% Ni doped with CaNb2O6,MgNb2O6 and CuNb2O6 has been prepared using sol-gel technique. The samples were sintered at 9000C for 6 hours. Structural characterization of the prepared samples has been done using X-ray diffraction (XRD) method. To study their applicability in low temperature cofired ceramic (LTCC) technology, dielectric and thermal properties have been characterized. Microwave dielectric properties like dielectric constant and Qf values over Ku-band for all the compositions have been measured. Dielectric constant was found to fall between 4.8 to 10. Thermal properties like thermal conductivity and thermal coefficient of expansion (TCE) were measured over a temperature range from room temperature to 900 0C. Thermal conductivity was found to be of the order of 1-2 W/m 0K while TCE was of the order of 5-10 x 10-6/0C. TCE of some of the compositions have shown negative value at 900 0C. More »»

2009

Jyotirmayee Satapathy, “Elastic properties of ANb2O6 (A=Ca,Mg,Cu,Ni) for LTCC application”, National Seminar on Recent trends in multifunctional oxide materials, Osmania University, Hyderabad, India., 2009.

Publication Type: Conference Proceedings

Year of Publication Title

2020

Jyotirmayee Satapathy and P, V., “Covariation statistics of aerosol and cloud properties over New Delhi using CERES observations”, AIP Conference Proceedings. 2020.[Abstract]


This study investigates the co-variation in retrieved cloud and aerosol parameters using CERES observations to evaluate the effect of aerosol on atmospheric processes, its dynamics-thermodynamics as well as its radiative forcing. Co-variation statistical analysis with meteorological parameters associated, is studied for 4 years from 2014 to 2017 over Delhi for 3 seasons separately. In recent times, there is a significant rise in the pollution level over Delhi which is the motivation behind this piece of work to find some inference of the effect of aerosol in perturbing the regional climatic conditions. This study reveals that the possible effect of aerosols on regional cloud physical processes is significant and seasonal differences are unique. The evolution of cloud properties that includes cloud liquid and ice water paths, cloud particle effective radii, cloud base pressure and temperature are compared with that of aerosol concentration. Results suggest that there lies a strong correlation between cloud droplet growth and cloud water paths and aerosols concentration. A correlation of the cloud-top temperature and the base pressure with the aerosol concentration is also consistent. The statistical results presented here, are quite substantial to conclude the influence of aerosol on the cloud.

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2020

A. D. and Jyotirmayee Satapathy, “Extreme dust storm events monitoring using space based remote sensing through INSAT-3D”, AIP Conference Proceedings. 2020.[Abstract]


Occurrence of extreme events such as dust storms are now very frequent and fatal causing significant loss to the mankind. Therefore, understanding the origin of a dust storm and its propagation has become pivotal. But its forecasting is quite challenging. However, space based remote sensing has been quite useful so far in monitoring such extreme events. With the recent addition of satellites such as INSAT-3D and INSAT-3DR, which present very high spatiotemporal information, monitoring extreme events have been taken front foot in meteorology studies. In this paper, few cases of extreme dust storm events those occurred over India in pre-monsoon seasons of 2018 and 2019, which has been quite hazardous, are monitored using INSAT-3D/3DR sounders and imagers. The propagation and the impact of presence of dust are identified on different Infrared channels by analyzing the various observations present in the satellite data. Comprehensive sensitivity analysis also carried out to understand the response of satellite's remote sensing due to the influence of dust storms. Thus, this work can provide not only an insight to the impact of dust storms on meteorological parameters but also the scope and utility of such satellite meteorology in capturing signatures of extreme dust events. And therefore this study also weighs and highlights the potential of INSAT-3D/3DR in assisting the weather forecasting and now-casting programs of extreme events.

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2018

S. G. Nair, R, D. S., and Jyotirmayee Satapathy, “A Brief Review on Structural, Electrical and Magnetic Characterization of Bismuth Ferrites”, IEEE-ICRIEECE. 2018.

2018

Jyotirmayee Satapathy, “Variation characteristic of regional Atmospheric Aerosol Properties from MODIS and its possible influence in rainfall”, IEEE-International Conference (I2CT), Pune. 2018.

2014

Jyotirmayee Satapathy, “Literature and Physics: A logical analogy”, National seminar on the logic of literary language: classic to popular, Rajiv Gandhi University, Arunachal Pradesh, India. 2014.

2012

Jyotirmayee Satapathy, “Synthesis and characterization of low temperature sintered CuxMg1- xNb2O6 towards LTCC”, International conference on nano science and technology and application, ICN, Mahatma Gandhi University, Kottayam, India. 2012.

2011

Jyotirmayee Satapathy, “40th national seminar on crystallography”, Osmania University, Hyderabad. 2011.

2011

Jyotirmayee Satapathy, “National user’s workshop on LTCC fabrication and applications”, C-MET, Pune. 2011.

2011

Jyotirmayee Satapathy, “Synthesis and characterization of low temperature sintered CaxMg1- xNb2O6 towards LTCC”, International conference on nano science, ICNANO , Delhi University, New Delhi, India. 2011.

2011

Jyotirmayee Satapathy, “Synthesis and characterization of ANb2O6 for LTCC”, International Conference of nano- structured ceramics. 2011.

Publication Type: Conference Paper

Year of Publication Title

2019

K. K., P., P. Pradeep, and Jyotirmayee Satapathy, “Influence of Aerosol on Cloud Dynamics: A Regional Case Study using MODIS”, in 2019 IEEE 5th International Conference for Convergence in Technology (I2CT), 2019.[Abstract]


Aerosol distribution and its impact on cloud properties have always remained as an unsolved problem. The complexity lies due to both direct and indirect effect of aerosol on cloud and the atmosphere. The development of satellite meteorology has empowered the studies in atmospheric science and has opened the doors for a more novel and path breaking research in this field. In this work, we attempt to study the correlation of seasonal variations in the anomaly of aerosol and cloud dynamics. The region of this study is chosen over New Delhi and four consecutive years (2014-2017) of MODIS cloud and aerosol retrieved products are considered for this work.

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