- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Remote Sensing in Agriculture
- Remote-Sensing Image Classification
- Planetary Science and Exploration
- Remote Sensing and Land Use
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Spectroscopy and Chemometric Analyses
- Smart Agriculture and AI
- Image and Signal Denoising Methods
- Arctic and Antarctic ice dynamics
- Astro and Planetary Science
- Soil Geostatistics and Mapping
- Water resources management and optimization
- Land Use and Ecosystem Services
- Climate change and permafrost
- Scientific Research and Discoveries
- Plant Micronutrient Interactions and Effects
- Agricultural Economics and Practices
- Income, Poverty, and Inequality
- Oil Palm Production and Sustainability
- Advanced Image Fusion Techniques
- Spacecraft and Cryogenic Technologies
- Geophysical Methods and Applications
Jawaharlal Nehru University
2023-2024
Indian Agricultural Research Institute
2020
Indian Council of Agricultural Research
2020
Indian Space Research Organisation
1999-2015
We present new polarimetric radar data for the surface of north pole Moon acquired with Mini‐SAR experiment onboard India's Chandrayaan‐1 spacecraft. Between mid‐February and mid‐April, 2009, mapped more than 95% areas polewards 80° latitude at a resolution 150 meters. The polar region displays backscatter properties typical Moon, circular polarization ratio (CPR) values in range 0.1–0.3, increasing to over 1.0 young primary impact craters. These higher CPR likely reflect roughness...
The current study investigates the potential of multi‐temporal RADARSAT ScanSAR Narrow Beam B (SCNB) data to monitor rice crop growth and condition where special emphasis was given signature analysis crop. area is located in Baleshwar Bhadrak districts Orissa. temporal variations radar backscatter all land‐cover classes were analysed as a function time. Synthetic Aperture Radar (SAR) coefficient (σ0) shows significant behaviour large dynamic range during its period, which due interaction...
Abstract The characteristic temporal backscattering signature of rice crop grown under flooded condition was used to estimate acreage for a region in West Bengal, India. To date ERS-1 Synthetic Aperture Radar (SAR) data, one acquired within 30 days transplantation and another after 30-40 found be optimum early estimation acreage. distinctly separable from forest, tree vegetation, village/urban areas. Misclassification observed mainly with water, waterlogged areas fallow fields.
This work deals with multisensor data fusion to obtain landcover classification. The role of feature-level using the Dempster-Shafer rule and that data-level in MRF context is studied this paper an optimally segmented image. Subsequently, segments are validated classification accuracy for test evaluated. Two examples optical images a synthetic aperture radar image presented, each set having been acquired on different dates. Classification accuracies technique proposed compared those some...
To develop an operational methodology for estimating soil moisture and crop biophysical parameters to generate a cover map, backscattering signatures of vegetation canopies are investigated using multitemporal Radarsat synthetic aperture radar (SAR) data over predominantly cotton-growing area in India during low peak growth stage. A simple parameterization the water-cloud model with volumetric content (m/sub v/) leaf idex (LAI) is used simulate microwave coefficient (/spl sigma//sup 0/), as...
Abstract. Synthetic Aperture Radar (SAR) sensors have great potential for a wide range of agricultural applications, owing to their capability all-weather observation. It is particularly useful in tropical regions Asia where most the crops are grown rainy season. The use SAR images assessment rice-planted area operational stage Asian countries its characteristic temporal signature however, applications estimation biophysical plant variables challenging, especially crop scattering and...
In India, open defecation is often seen as an individual's behavioural problem rather than the institutional inability and failure of policies programmes government on sanitation drive. this regard, study tries to critically look into how infrastructural incapacity are responsible for ongoing in Delhi. This was conducted three slum settlements across Municipal Corporations It adopted a mixed methods approach. In-depth interviews, focus group discussions, observations, various quantitative...
This study attempts to examine farmers' preference and perception towards cropland agroforestry (CAF) its economic benefits in Bangladesh. It surveys 84 farmers of two sub-districts named Manirampur Bagherpara under Jessore district Bangladesh address the objectives with help a questionnaire during period June July 2013. We follow multistage random sampling procedure for selecting respondents survey. A total 27 plant species 19 families are identified surveyed crop fields, among which 11...
Since the 2007 National Academy of Science "Decadal Survey" report "Earth and Applications from Space: Imperatives for Next Decade Beyond" [1], Aeronautics Space Administration (NASA) has been studying concepts a Synthetic Aperture Radar (SAR) mission to determine Earth change in three disciplines - ecosystems, solid earth, cryospheric sciences. One most promising original involves an innovative international partnership between NASA Indian Research Organization (ISRO). Previous had focused...