A5102940828- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- Spacecraft Design and Technology
- Space Satellite Systems and Control
- Magnetic Bearings and Levitation Dynamics
- Extraction and Separation Processes
- Geophysical and Geoelectrical Methods
- Robotic Path Planning Algorithms
- Sensorless Control of Electric Motors
- Meteorological Phenomena and Simulations
- Remote Sensing in Agriculture
- Solar and Space Plasma Dynamics
- Agricultural Economics and Practices
- Recycling and Waste Management Techniques
- Soil Moisture and Remote Sensing
- Seismic Waves and Analysis
- Autonomous Vehicle Technology and Safety
- Geophysical Methods and Applications
- Traffic control and management
- Spacecraft and Cryogenic Technologies
- Solar Radiation and Photovoltaics
- Transport Systems and Technology
Indian Space Research Organisation
2006-2021
Indian Institute of Remote Sensing
2013-2020
Government of India
2018
Physical Research Laboratory
2008-2013
India Meteorological Department
1980-1994
The measurements of vertical distribution ozone have been made over the Bay Bengal and Arabian Sea in spring 2006 during a cruise campaign, namely, Integrated Campaign for Aerosol, Gases Radiation Budget. average tropospheric columnar (TCO) values are found to be 36.1 ± 6.9 Dobson unit (DU) 41.7 5.0 DU Sea, respectively. In contrast TCO, mixing ratios higher by about 10 ppbv lower 3 km due Indo Gangetic outflow above marine atmospheric boundary layer. Major contribution TCO value is,...
In the present study, an intense unseasonal dust storm has been analyzed during third week of March 2012 from multi satellite datasets and surface measurements over National Capital Region (NCR), Delhi. The intrusion study region increased MODIS Aerosol Optical Depth at 550 nm more than 1.0 whereas significant decrease in Angstrom Exponent (α) observed . Very high UV aerosol Index (> 2) location indicates presence absorbing aerosols Fire activities are found to be negligible source...
Abstract. In the present study, 3-D chemical transport model, MOZART-4 (Model for Ozone and Related Tracers-Version-4) has been used to study seasonal spatial distribution of surface ozone (O3) over India. To illustrate capabilities simulations are compared with ground-based observations. The model reproduces principal features in However, is unable simulate very low concentration O3 during monsoon months. quantify contribution background Indian anthropogenic emissions variability O3. total...
Program critical, high cost and delicate space hardware like satellite built with pressurized tanks, sensitive optics, electronics hazardous chemicals need protection from various environmental hazards during transportation. These include shock, vibration handling loads climatic such as temperature, humidity, rain, dust due to harsh ambient atmospheric conditions etc. The Satellite Transportation System (STS) is equipped adequate monitoring system. data acquisition system used monitor the of...
Analysis of sodar echograms for a period one year (May 19777-April 1978) shows that wavemotions, both simple and complex, occur in the planetary boundary layer at Delhi. The oscillations under conditions nocturnal radiation inversion, ascending inversion frontal wind shear.
 Auto correlation power spectral density techniques wave analysis have been applied to observed motions study their periodicity. frequency spectra waves are reported. time periods lying mostly within 1-15 Minutes...
The measurement of static and dynamic unbalance satellite is carried out on vertical balancing machine (VDBM) [1 I. Selvaraj, K. V. Govinda, A. Thomas, Development a Dynamic Balancing Machine, ISRO Satellite Centre-No:Apple-ISAC-51-79-07-05-005. (1978). [Google Scholar]]. Velocity pickup transducer in VDBM, which measures the velocity due to converts mechanical motion into voltage output, controls sensitivity machine. In order improve at low spin speed, new with higher developed. A full...
Abstract. Total column carbon monoxide (CO) concentration obtained from MOPITT (Measurement Of Pollution In The Troposphere) have been analyzed over the Indian subcontinent for a period of March, 2000 to December, 2010. Average monthly variation columnar CO is investigated eastern and western coasts India (latitude > 18°N). found be larger east coast than west coast. higher concentrations (2.3–2.8 x 1018 molec/cm2) occur during November April months both coastal regions. lower (1.6–1.7...
A new set of constants based on sixth order polynomials fitting measured data sixteen Indian cities has been found to estimate the monthly mean global radiation a horizontal surface. These provide good estimates surface with maximum deviation 8%. comparison present result other models shows that yield more accurate results.