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Tapas R. Martha - One of the best experts on this subject based on the ideXlab platform.
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Lava flows and cinder cones at Barren Island volcano, India (2005–2017): a spatio-temporal analysis using satellite images
Bulletin of Volcanology, 2018Co-Authors: Tapas R. Martha, K. Vinod KumarAbstract:Barren Island volcano erupted during January–February 2017. Located near the Andaman trench and over a subduction zone, it is the only active volcano in India. It comprises a prominent caldera within which there is a polygenetic intra-caldera cinder cone system, with a record of eruptive events which date back to eighteenth century (1787–1832). Major eruptions occurred in 1991, 1994–1995, 2005 and, since 2008, the volcano has been showing near continuous activity with periodic eruptions. We used coarse spatial resolution “fire” products (Band I4) from Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite to detect days of eruption during the January–February 2017 period. Moderate spatial resolution (23.5 m) short-wavelength infrared (SWIR) data of Resourcesat-2 Linear Imaging Self Scanning Sensor–III available for specific days during this period were used to verify signatures of volcanic eruption. Thermal infrared band data from the Landsat series over the 2005–2017 periods were used to estimate the brightness temperature and location of the active vent within the polygenetic cinder cone field. High-spatial resolution images (1–5.8 m) in the visible bands (Resourcesat-2 LISS-IV, Cartosat-1 and 2) were used to delineate the changes in overall morphology of the volcano and to identify an inner crater ring fault, new paths of lava flow and the formation of a new cinder cone on the old crater. These multi-temporal data sets show significant changes in the paths of lava flows from 2005 to 2017. The observations also document periodic shifts in the location of effusive vents. Morphogenetic changes in recent eruptive phases of the Barren Island volcano were successfully delineated using a combination of multi-temporal and multi-resolution satellite images in visible, SWIR and thermal infrared regions of the electromagnetic spectrum.
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Lava flows and cinder cones at Barren Island volcano, India (2005-2017): a spatio-temporal analysis using satellite images
Bulletin of Volcanology, 2018Co-Authors: Tapas R. Martha, P. S. Roy, K. Vinod KumarAbstract:Barren Island volcano erupted during January–February 2017. Located near the Andaman trench and over a subduction zone, it is the only active volcano in India. It comprises a prominent caldera within which there is a polygenetic intra-caldera cinder cone system, with a record of eruptive events which date back to eighteenth century (1787–1832). Major eruptions occurred in 1991, 1994–1995, 2005 and, since 2008, the volcano has been showing near continuous activity with periodic eruptions. We used coarse spatial resolution “fire” products (Band I4) from Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite to detect days of eruption during the January–February 2017 period. Moderate spatial resolution (23.5 m) short-wavelength infrared (SWIR) data of Resourcesat-2 Linear Imaging Self Scanning Sensor–III available for specific days during this period were used to verify signatures of volcanic eruption. Thermal infrared band data from the Landsat series over the 2005–2017 periods were used to estimate the brightness temperature and location of the active vent within the polygenetic cinder cone field. High-spatial resolution images (1–5.8 m) in the visible bands (Resourcesat-2 LISS-IV, Cartosat-1 and 2) were used to delineate the changes in overall morphology of the volcano and to identify an inner crater ring fault, new paths of lava flow and the formation of a new cinder cone on the old crater. These multi-temporal data sets show significant changes in the paths of lava flows from 2005 to 2017. The observations also document periodic shifts in the location of effusive vents. Morphogenetic changes in recent eruptive phases of the Barren Island volcano were successfully delineated using a combination of multi-temporal and multi-resolution satellite images in visible, SWIR and thermal infrared regions of the electromagnetic spectrum.
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mapping damage in the jammu and kashmir caused by 8 october 2005 mw 7 3 earthquake from the cartosat 1 and Resourcesat 1 imagery
International Journal of Remote Sensing, 2006Co-Authors: Vinod K Kumar, Tapas R. Martha, Priyom RoyAbstract:A massive earthquake of Mw = 7.3 struck the western Himalaya on 8 October 2005 at 03:50:40 (UTC) causing widespread damage to property and lives. This earthquake is the result of thrusting of the Indian plate under the Eurasian plate. It is one of the deadliest earthquakes in South Asia in recent times. The recently launched Indian remote sensing satellite Cartosat–1, providing 2.5 m panchromatic along‐track stereoscopic data have been analysed for damage assessment along with Resourcesat–1 multispectral data for understanding the regional tectonics. In this study, nearly 25% of the buildings are identified as fully collapsed in Uri and Punch region of the Jammu and Kashmir, India. Other damage such as bridge collapse, road blockage owing to landslides etc. is also identified from the satellite data. The coseismic landslides show clear spatial association with the pre‐existing faults such as the Jhelum Fault and Main Boundary Thrust (MBT). A new trend in the alignment of landslides is found, which indicat...
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Mapping damage in the Jammu and Kashmir caused by 8 October 2005 Mw 7.3 earthquake from the Cartosat–1 and Resourcesat–1 imagery
International Journal of Remote Sensing, 2006Co-Authors: K. Vinod Kumar, Tapas R. Martha, Priyom RoyAbstract:A massive earthquake of Mw = 7.3 struck the western Himalaya on 8 October 2005 at 03:50:40 (UTC) causing widespread damage to property and lives. This earthquake is the result of thrusting of the Indian plate under the Eurasian plate. It is one of the deadliest earthquakes in South Asia in recent times. The recently launched Indian remote sensing satellite Cartosat–1, providing 2.5 m panchromatic along‐track stereoscopic data have been analysed for damage assessment along with Resourcesat–1 multispectral data for understanding the regional tectonics. In this study, nearly 25% of the buildings are identified as fully collapsed in Uri and Punch region of the Jammu and Kashmir, India. Other damage such as bridge collapse, road blockage owing to landslides etc. is also identified from the satellite data. The coseismic landslides show clear spatial association with the pre‐existing faults such as the Jhelum Fault and Main Boundary Thrust (MBT). A new trend in the alignment of landslides is found, which indicat...
K. Vinod Kumar - One of the best experts on this subject based on the ideXlab platform.
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Lava flows and cinder cones at Barren Island volcano, India (2005-2017): a spatio-temporal analysis using satellite images
Bulletin of Volcanology, 2018Co-Authors: Tapas R. Martha, P. S. Roy, K. Vinod KumarAbstract:Barren Island volcano erupted during January–February 2017. Located near the Andaman trench and over a subduction zone, it is the only active volcano in India. It comprises a prominent caldera within which there is a polygenetic intra-caldera cinder cone system, with a record of eruptive events which date back to eighteenth century (1787–1832). Major eruptions occurred in 1991, 1994–1995, 2005 and, since 2008, the volcano has been showing near continuous activity with periodic eruptions. We used coarse spatial resolution “fire” products (Band I4) from Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite to detect days of eruption during the January–February 2017 period. Moderate spatial resolution (23.5 m) short-wavelength infrared (SWIR) data of Resourcesat-2 Linear Imaging Self Scanning Sensor–III available for specific days during this period were used to verify signatures of volcanic eruption. Thermal infrared band data from the Landsat series over the 2005–2017 periods were used to estimate the brightness temperature and location of the active vent within the polygenetic cinder cone field. High-spatial resolution images (1–5.8 m) in the visible bands (Resourcesat-2 LISS-IV, Cartosat-1 and 2) were used to delineate the changes in overall morphology of the volcano and to identify an inner crater ring fault, new paths of lava flow and the formation of a new cinder cone on the old crater. These multi-temporal data sets show significant changes in the paths of lava flows from 2005 to 2017. The observations also document periodic shifts in the location of effusive vents. Morphogenetic changes in recent eruptive phases of the Barren Island volcano were successfully delineated using a combination of multi-temporal and multi-resolution satellite images in visible, SWIR and thermal infrared regions of the electromagnetic spectrum.
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Use of Remote Sensing and Geospatial Technique for Pre-feasibility Analysis of Rural Water Pipeline Grids
Journal of the Indian Society of Remote Sensing, 2016Co-Authors: P. S. Roy, J. Chandramohan, K. Vinod Kumar, Arul Raj, Mobina Shaik, Vinod M Bothale, P. G. DiwakarAbstract:The article outlines a procedure of pre-feasibility analysis of planned rural water supply pipeline grids in India. Usually, these type of pre feasibility studies prior to actual implementation, is carried out based on ground surveys and is time consuming. In this work, we use thematic spatial data, such as geomorphology and landuse–landcover along with digital elevation model (DEM) to carry out the pre-feasibility assessment of proposed pipeline grids. DEM generated from CartoSat-1 stereo data has been used to understand the possible topographic hindrances along the planned pipeline route and optimise the same. Further, topographic data also indicates the possible routes of gravity assisted flow. The geomorphology thematic data interpreted from Resourcesat-1 LISS III imagery is used to identify possible geomorphologic hindrances along the pipeline route. Similarly, landuse–landcover information derived from Resourcesat-2 LISS III images, was used to assess the land use/cover impact of the planed pipeline corridor. This has been demonstrated, in the current article using a hypothetical pipeline route. The activity can be carried in a specially designed geo-spatial interface in NRSC/ISRO Bhuvan geoportal. This type of assessment can prove to be time saving and cost effective at a pre-feasibility stage.
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Mapping damage in the Jammu and Kashmir caused by 8 October 2005 Mw 7.3 earthquake from the Cartosat–1 and Resourcesat–1 imagery
International Journal of Remote Sensing, 2006Co-Authors: K. Vinod Kumar, Tapas R. Martha, Priyom RoyAbstract:A massive earthquake of Mw = 7.3 struck the western Himalaya on 8 October 2005 at 03:50:40 (UTC) causing widespread damage to property and lives. This earthquake is the result of thrusting of the Indian plate under the Eurasian plate. It is one of the deadliest earthquakes in South Asia in recent times. The recently launched Indian remote sensing satellite Cartosat–1, providing 2.5 m panchromatic along‐track stereoscopic data have been analysed for damage assessment along with Resourcesat–1 multispectral data for understanding the regional tectonics. In this study, nearly 25% of the buildings are identified as fully collapsed in Uri and Punch region of the Jammu and Kashmir, India. Other damage such as bridge collapse, road blockage owing to landslides etc. is also identified from the satellite data. The coseismic landslides show clear spatial association with the pre‐existing faults such as the Jhelum Fault and Main Boundary Thrust (MBT). A new trend in the alignment of landslides is found, which indicat...
P. S. Roy - One of the best experts on this subject based on the ideXlab platform.
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Lava flows and cinder cones at Barren Island volcano, India (2005-2017): a spatio-temporal analysis using satellite images
Bulletin of Volcanology, 2018Co-Authors: Tapas R. Martha, P. S. Roy, K. Vinod KumarAbstract:Barren Island volcano erupted during January–February 2017. Located near the Andaman trench and over a subduction zone, it is the only active volcano in India. It comprises a prominent caldera within which there is a polygenetic intra-caldera cinder cone system, with a record of eruptive events which date back to eighteenth century (1787–1832). Major eruptions occurred in 1991, 1994–1995, 2005 and, since 2008, the volcano has been showing near continuous activity with periodic eruptions. We used coarse spatial resolution “fire” products (Band I4) from Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite to detect days of eruption during the January–February 2017 period. Moderate spatial resolution (23.5 m) short-wavelength infrared (SWIR) data of Resourcesat-2 Linear Imaging Self Scanning Sensor–III available for specific days during this period were used to verify signatures of volcanic eruption. Thermal infrared band data from the Landsat series over the 2005–2017 periods were used to estimate the brightness temperature and location of the active vent within the polygenetic cinder cone field. High-spatial resolution images (1–5.8 m) in the visible bands (Resourcesat-2 LISS-IV, Cartosat-1 and 2) were used to delineate the changes in overall morphology of the volcano and to identify an inner crater ring fault, new paths of lava flow and the formation of a new cinder cone on the old crater. These multi-temporal data sets show significant changes in the paths of lava flows from 2005 to 2017. The observations also document periodic shifts in the location of effusive vents. Morphogenetic changes in recent eruptive phases of the Barren Island volcano were successfully delineated using a combination of multi-temporal and multi-resolution satellite images in visible, SWIR and thermal infrared regions of the electromagnetic spectrum.
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Use of Remote Sensing and Geospatial Technique for Pre-feasibility Analysis of Rural Water Pipeline Grids
Journal of the Indian Society of Remote Sensing, 2016Co-Authors: P. S. Roy, J. Chandramohan, K. Vinod Kumar, Arul Raj, Mobina Shaik, Vinod M Bothale, P. G. DiwakarAbstract:The article outlines a procedure of pre-feasibility analysis of planned rural water supply pipeline grids in India. Usually, these type of pre feasibility studies prior to actual implementation, is carried out based on ground surveys and is time consuming. In this work, we use thematic spatial data, such as geomorphology and landuse–landcover along with digital elevation model (DEM) to carry out the pre-feasibility assessment of proposed pipeline grids. DEM generated from CartoSat-1 stereo data has been used to understand the possible topographic hindrances along the planned pipeline route and optimise the same. Further, topographic data also indicates the possible routes of gravity assisted flow. The geomorphology thematic data interpreted from Resourcesat-1 LISS III imagery is used to identify possible geomorphologic hindrances along the pipeline route. Similarly, landuse–landcover information derived from Resourcesat-2 LISS III images, was used to assess the land use/cover impact of the planed pipeline corridor. This has been demonstrated, in the current article using a hypothetical pipeline route. The activity can be carried in a specially designed geo-spatial interface in NRSC/ISRO Bhuvan geoportal. This type of assessment can prove to be time saving and cost effective at a pre-feasibility stage.
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Land use land cover classification of Orissa using multi-temporal IRS-P6 awifs data: A decision tree approach
International Journal of Applied Earth Observation and Geoinformation, 2008Co-Authors: Sreenivas Kandrika, P. S. RoyAbstract:An attempt has been made to understand the potential of temporal Advanced Wide Field Sensor (AWiFS) data aboard IRS-P6 (Resourcesat) to generate the land use land cover information along with the net sown area. The temporal data sets were georeferenced, converted to top of atmosphere reflectance and classified using decision tree classifier, See5. Results indicate that the temporal data set could give a better definition of training sites thereby resulting in good overall kappa (kappa = 0.8651) as well as individual classification accuracies. However, co-registration of temporal datasets accuracies also has got a significant influence on the classification accuracy. Temporal variation in cloud infestation and availability of appropriate data sets within the season (before harvest of the crop) has also affected the classification accuracy.
K. Vinod Kumar - One of the best experts on this subject based on the ideXlab platform.
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Lava flows and cinder cones at Barren Island volcano, India (2005–2017): a spatio-temporal analysis using satellite images
Bulletin of Volcanology, 2018Co-Authors: Tapas R. Martha, K. Vinod KumarAbstract:Barren Island volcano erupted during January–February 2017. Located near the Andaman trench and over a subduction zone, it is the only active volcano in India. It comprises a prominent caldera within which there is a polygenetic intra-caldera cinder cone system, with a record of eruptive events which date back to eighteenth century (1787–1832). Major eruptions occurred in 1991, 1994–1995, 2005 and, since 2008, the volcano has been showing near continuous activity with periodic eruptions. We used coarse spatial resolution “fire” products (Band I4) from Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite to detect days of eruption during the January–February 2017 period. Moderate spatial resolution (23.5 m) short-wavelength infrared (SWIR) data of Resourcesat-2 Linear Imaging Self Scanning Sensor–III available for specific days during this period were used to verify signatures of volcanic eruption. Thermal infrared band data from the Landsat series over the 2005–2017 periods were used to estimate the brightness temperature and location of the active vent within the polygenetic cinder cone field. High-spatial resolution images (1–5.8 m) in the visible bands (Resourcesat-2 LISS-IV, Cartosat-1 and 2) were used to delineate the changes in overall morphology of the volcano and to identify an inner crater ring fault, new paths of lava flow and the formation of a new cinder cone on the old crater. These multi-temporal data sets show significant changes in the paths of lava flows from 2005 to 2017. The observations also document periodic shifts in the location of effusive vents. Morphogenetic changes in recent eruptive phases of the Barren Island volcano were successfully delineated using a combination of multi-temporal and multi-resolution satellite images in visible, SWIR and thermal infrared regions of the electromagnetic spectrum.
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Remote Sensing based assessment of glacial lake growth on Milam glacier, Goriganga basin, Kumaon Himalaya
Journal of the Geological Society of India, 2014Co-Authors: K. Babu Govindha Raj, K. Vinod Kumar, Rakesh Mishra, Muneer Ahmad MukhtarAbstract:The climate change of the twentieth century had an evident effect on glacier environments of the Himalaya. Temporal images of Indian Remote Sensing satellites provide an opportunity to monitor the recession of glacier and development of glacial lakes in the Himalayan cryosphere with a cost to time benefit ratio. The recession of Milam glacier and subsequent growth of a proglacial lake near the snout was analysed using Resourcesat-1 and Resourcesat-2 data. The recession of 480 m during 2004 to 2011 and growth of 47 epiglacial ponds over Milam glacier shows the glacier is in a state of imbalance and losing the ice by downwasting.
M. R. Pandya - One of the best experts on this subject based on the ideXlab platform.
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Retrieval of surface reflectance from Resourcesat-2 AWiFS, LISS-3, and LISS-4 data using SACRS2 scheme
Multispectral Hyperspectral and Ultraspectral Remote Sensing Technology Techniques and Applications VI, 2016Co-Authors: V. N. Pathak, M. R. Pandya, D. B. Shah, H. J. Trivedi, K. D. PatelAbstract:Satellite based multispectral imagery contains various quantitative information related to surface and atmosphere. To extract the accurate information about surface, we need to correct atmospheric influence which is introduced by the atmosphere. Atmospheric correction of multispectral satellite imagery is an important prerequisite to derive geophysical parameters from satellite data. In this study surface reflectance is retrieved using the Scheme for Atmospheric Correction of Resourcesat-2 (SACRS2). The SACRS2 is physics based atmospheric correction scheme developed at Space Applications Centre (SAC), ISRO based on radiative transfer model 6SV (The Second Simulation of the Satellite Signal in the Solar Spectrum vector version). SACRS2 method is easily applicable for atmospheric correction of multispectral data. A detail analysis has been carried out to retrieve surface reflectance from Resourcesat-2 AWiFS, LISS-3 and LISS-4 data using SACRS2 method. The retrieved surface reflectance from SACRS2 for AWiFS, LISS-3 and LISS-4 have been compared with in-situ measurements. The comparison showed a good match of reflectance derived by SACRS2 scheme with the in-situ measurements.
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Development of a scheme for atmospheric correction of Resourcesat-2 AWiFS data
International Journal of Applied Earth Observation and Geoinformation, 2015Co-Authors: M. R. Pandya, V. N. Pathak, D. B. Shah, H. J. Trivedi, Raghavendra P. Singh, R. A. Chipade, A. S. KirankumarAbstract:a b s t r a c t This paper presents a method called SACRS2, a scheme for atmospheric correction of RS2-AWiFS (Resourcesat2-Advanced Wide Field Sensor) data. The SACRS2 is a computationally fast scheme devel- oped from a physics-based detailed radiative transfer model 6SV for correcting large amount of data from the high-repetivity AWiFS sensor. The method is based on deriving a set of equations with coefficients which depend on the spectral bands of the RS2-AWiFS sensor through forward signal simulations by 6SV. Semi-empirical formulations provided in the SMAC method with a few improvements have been used to describe various atmospheric interactions. A total of 112 coefficients for different equations are determined using the best fit equations against the computations of the 6SV. After the specific coeffi- cients for the RS2-AWiFS spectral bands are determined, the major inputs of the scheme are raw digital numbers recorded by RS2-AWiFS sensor, atmospheric columnar water vapour content, ozone content, aerosol optical thickness at 550 nm and viewing-illumination conditions. Results showed a good per- formance of the SACRS2 with a maximum relative error in the SACRS2 simulations ranged between 1% for a reflectance of 0.5 and 8.6% for reflectance of 0.05 with respect to 6SV computations. Validation of retrieved surface reflectance using the SACRS2 scheme with respect to in-situ measurements at two sites indicated a capability of this scheme to determine the surface reflectance within 10%. This is a first of its kind scheme developed for the atmospheric correction of any Indian Remote Sensing satellite data. A package containing the SACRS2 software is available on the MOSDAC website for the researchers.
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Quantification and comparison of spectral characteristics of sensors on board Resourcesat-1 and Resourcesat-2 satellites
Remote Sensing Letters, 2013Co-Authors: M. R. Pandya, K. R. Murali, A. S. KirankumarAbstract:This letter presents quantification and comparison of spectral characteristics of three similar sensors, namely Linear Imaging Self-Scanning Sensor (LISS)-III, LISS-IV and Advanced Wide Field Sensor (AWiFS) on board Indian Remote Sensing (IRS) satellites Resourcesat-1 (RS1) and Resourcesat-2 (RS2). Theoretical estimates of three critical spectral characteristics, effective bandwidth (Δλ), central wavelength (λc) and bandpass solar exoatmospheric irradiance (E 0), have been computed based on the laboratory measurements of the relative spectral response (RSR) for each spectral band. A comparative analysis between two estimates computed through the moment method and the full width at half maximum (FWHM) method showed noticeable differences of the order of 4.4–14.1 nm in Δλ and λc for the corresponding band of Resourcesat sensors. A coefficient of variation (CV) of the order of 0.1–1.3% was noticed in E 0 among various Resourcesat sensors, which could induce a difference of 0.26–3.27% in the estimation of top...
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Evaluation and use of Resourcesat-I data for agricultural applications
International Journal of Applied Earth Observation and Geoinformation, 2008Co-Authors: M.p. Oza, M. R. Pandya, D.r. RajakAbstract:Resourcesat-1 satellite offers a unique opportunity of simultaneous observations at three different spatial scales through LISS-IV, LISS-III* (improved LISS-III) and AWiFS sensors from a common platform. The sensors have enhanced capabilities in terms of spectral, spatial and radiometric resolution as compared to earlier Indian Remote sensing Satellite sensors. This paper summarizes the results of various studies such as evaluation of sensor characteristics, inter-sensor comparison studies, derivation and validation of surface reflectance measurements, quantification of improvements due to Resourcesat-1 sensors, and their use for various agricultural applications. The studies presented in this paper demonstrate that suit of sensors onboard Resourcesat-1 satellite provides better prospects for several agricultural applications like crop identification, discrimination and crop inventory for some major Indian crops, than its predecessors on IRS satellites.
