P. Chauhan

P. Chauhan
Indian Space Research Organization | ISRO

Ph D Science

About

226
Publications
47,703
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1,722
Citations
Additional affiliations
January 2014 - January 2017
Space Application Center
Position
  • Managing Director

Publications

Publications (226)
Article
Groundwater can serve as an alternative measure to solve the scarcity in perennial water sources. In this perspective, a study has been carried out in Phuentsholing, Bhutan, for demarcating the most probable zone for groundwater source by an integrated application of geospatial and geophysical survey. The seven contributing factors (i.e. geology, g...
Article
This paper presents the methodology for correction of thermal emission from the Imaging Infrared Spectrometer sensor data onboard the recently launched Chandrayaan-2 spacecraft. The sensor provides extended spectral range of 0.8–5 μm and a spectral resolution of ~20 nm. The Imaging Infrared Spectrometer measures the reflected and emitted radiation...
Article
Full-text available
This paper reports a rare interaction between two fronts of nighttime medium scale traveling ionospheric disturbances (MSTIDs) and associated phenomena observed over geomagnetic low-mid latitude transition region on a geomagnetically quiet night (Ap=5) of 21 May, 2020. The event was observed for nearly eight hours in O(1D) 630.0 nm airglow images c...
Conference Paper
Full-text available
Introduction Analogue studies are one of the most possible approach and are important sites on the earth to understand the behavior of extraterrestrial planets. Volcanoes, the natural phenomenon that occurs in all terrestrial planets have believed to be playing a very important role in creating the landforms and life cycle on planet Earth. Initiall...
Article
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Stubble burning (SB) has been a major source of seasonal aerosol loading and pollution over northern India. The aftereffects of groundwater preservation act i.e., post 2010 era (2011–2020) has seen delay in crop harvesting thereby shifting the peak SB to May (Wheat SB) and to November (Paddy SB) by 8–10 and 10–12 days compared to pre-2010. Groundwa...
Article
Rapid industrialization, widespread urbanization and deforestation have resulted in the deterioration of air quality in many countries. Air pollution, also called the ‘silent killer’, is one of the major health risks being faced nowadays. Considering the rapidly alarming health risk due to environmental situation of deteriorating air quality in Ind...
Article
Present study is an attempt to evaluate the rainfall pattern obtained from the selected Regional Climate Models (RCMs) which participated in Coordinated Regional Climate Downscaling Experiment for the South Asia region (CORDEX‐SA) and the Global Climate Models (GCMs) which participated in Coupled Model Intercomparison Project Phase 5 (CMIP5) with r...
Article
Himalayan mountain belt is one of the most rapidly deforming plate collision zones and is prone to produce megathrust earthquakes. In this study, a detailed measure of present-day deformation and strain-build up rate in the Kumaun-Garhwal region of Northwest Himalaya is carried out through eighteen GNSS stations extending from Gangetic Plains to Hi...
Chapter
Chandrayaan-2 Mission, various sensors and their objectives
Chapter
Thermal infrared spectroscopy; Vibrational spectroscopy
Chapter
Reflectance Spectrophotometry; Spectral Reflectance
Article
Full-text available
The present study aims to identify, characterize monitor and model the transport pathways of volcanic ashes and various features of the active phase of Barren Island volcano (BIV), Andaman and Nicobar Island, India during 2018 using the several Earth observation satellite technologies and field observations in the study area. Sentinel-2 satellite d...
Article
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Imaging Infrared Spectrometer (IIRS) on-board Chandrayaan-2 is designed to measure lunar reflected and emitted solar radiation in 0.8-5.0 μm spectral range. Its high spatial resolution (~80 m) and extended spectral range is most suitable to completely characterize lunar hydration (2.8-3.5 μm region) attributed to the presence of OH and/or H 2 O. He...
Article
Distance learning is the process of creating an educational experience of equal qualitative value for the learner to best suit their needs outside the classroom. Distance Learning Program (DLP) offered by Indian Institute of Remote Sensing (IIRS), Indian Space Research Organisation (ISRO), has witnessed steady growth in the last thirteen years bene...
Chapter
Full-text available
Globally, the groundwater is the most favourable and demandable freshwater resource. The threat to surface water resources and subsurface aquifer systems increased with climate changeClimate change as well as surplus usage of groundwater in highly populated regions. Thus, in present day, groundwater is the primary resource for the sustainability of...
Article
One of the significant natural pollutants in the atmosphere is the mineral dust aerosols. In the northern hemisphere, Arabian Peninsula is one of the significant sources of dust aerosols with the frequency of dust storms changing seasonally. Dust emitted from the Arabian Peninsula region transports towards the Indian region through prevailing winds...
Conference Paper
Full-text available
Introduction: Floor-fractured craters are unique features on the Moon that have witnessed and recorded episodes of tectonic and volcanic events in form of various morphological and structural features. They are present near the edges of mare basins and are distinguished easily by the presence of prominent fracture system, moat features, volcanic ac...
Article
The elementary objective of this current study estimates groundwater limitation in the Mehsana district of Gujarat, by the aid of downscaling GRACE (Gravity Recovery and Climate Experiment) spherical harmonics (SH) and Jet Propulsion Laboratory (JPL) mascon regional solutions data. A set of post monsoonal data from 2003 to 2019 is taken for this re...
Research
Full-text available
The present study reports the existence of a unique and unusual feature of the Zanskar valley, Ladakh, India-a proglacial 'red/brown-coloured lake' observed from space-based remote sensing data. The lake has not changed in colour and size over the years. Here we report observations from 2004 onwards till recently. The local geology plays an importa...
Article
Extreme dust episodes have been noticeably increasing in recent years. Dust burden during such events imparts several threats to the environment and human health. Therefore, forecast of such extreme events becomes of utmost importance to minimise the adverse impact on various socio-economy sectors. In the present study model experiments have been c...
Article
Full-text available
The study interprets the effect of seasonal (pre-, co- and post-monsoon) hydrological loading due to the Ganga river basin over the seismicity and geodetic deformation in the Garhwal region. Geodetic data from six cGPS sites are used, three sites out of six are established in the Himalayan region, one is located in the Ganga basin and two sites are...
Article
The delineation of the groundwater resource (GWR) zone is one of the challenging tasks for the research domain of hydrogeologists and decision makers. In this study, thematic inventory of existing ancillary data and remotely sensed data sets were used for targeting the GWR zones at microscale. Different geology, geomorphological and hydrological pa...
Article
Groundwater serves more than 80% of agriculture and 60% of drinking water in India thus making it a demandable resource in the study area. In this study the groundwater storage change was determined by using RL05 land data product (January, 2003 to December, 2016) which was accessed from the Gravity Recovery and Climate Experiment (GRACE) satellite...
Conference Paper
Full-text available
Introduction: Mare Nubium is a Pre-Nectarian basin (~4.5 by to ~3.9 by) and represents one of the most ancient circular basin located at 21.3° S to 16.6° W towards the near side of the Moon. It is having diameter of about 750 km [1] and surrounded by Mare Hu-morum and Mare Cognitum basin towards its eastern and northern boundaries, respectively. Th...
Conference Paper
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Preliminary observations of lunar surface by Chandrayaan-2 Imaging Infrared Spectrometer (IIRS)
Article
Full-text available
Land cover is a crucial component in assessment of biodiversity and ecosystem services. In arid regions, land cover is mostly composed of aeolian structures which exhibit fragile environmental scenario. The major challenge in this highly dynamic landscape was conversion of desertic land to intensive land use such as agricultural farmlands. To overc...
Article
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Arid regions are composite of complex structures. Desertification and land degradation of these arid regions need appropriate measures in accordance with time. Hyperspectral remote sensing data sets have high potential capabilities in estimating land degradation phenomenon. Imaging spectroscopy appears to be an emerging technology for the assessmen...
Article
To determine the chemical composition of minerals on planetary surfaces from spectroscopic data, it is required to establish the link between mineralogy, spectroscopy and chemical composition of rock forming minerals on Earth. To meet this requirement, we performed integrated mineralogical and spectroscopic (Visible-Near Infrared and micro Raman) c...
Article
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This study examines the MODIS time series NDVI datasets to detect greenness regeneration over Western Raj asthan and the Gujarat region of India. Time series analysis was applied to 17-years (2000-2016). MODIS NDVI satellite data product. Rainfall data for the same period were also analyzed to understand its impact over vegetation. NDVI time series...
Article
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Impact of four major cyclones: Phailin, Helen, Lehar, and Madi have been studied in terms of changes in ocean productivity utilizing Indian satellite Oceansat-2 ocean color monitor and MODIS-Aqua data during October–December 2013. The 8-day and monthly composite chlorophyll images have been generated owing to the pre-, during, and post-stages of fo...
Article
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We explored the utilization of Landsat-8 Operational Land Imager (OLI) data for mapping of hydrothermal alteration zones. The region in and around the cities of Dungarpur and Udaipur of Rajasthan state in India was selected for this study. The rock types of Dungarpur and Udaipur are serpentinites, talc-carbonate, talc-schist, and quartzite of the A...
Article
The Hansteen‐Billy region of the Moon lying toward the southwest edge of Oceanus Procellarum is characterized by emplacement of three different aged basaltic units viz. INm, Im, and Em. The present study primarily utilizes high‐resolution Chandrayaan‐I, Moon Mineralogy Mapper (M3) data clipped at ~2.5 μm for mineral analysis of these units. The spe...
Article
Marius Hills volcanic complex is one of the most important regions on the lunar surface having an abundant number of volcanic features like domes and cones. Systematic mapping of 106 domes/cones in the Marius Hills region was carried out in this study using high-resolution orthoimage and digital elevation models of Chandrayaan-1 and Kaguya missions...
Article
Full-text available
Oceans play an important role in maintaining the Earth’s climate and provide vital natural resources. Ocean biota, in particular phytoplankton plays a fundamental role in regulating the Earth’s energy balance. Atmospheric carbon is fixed by these organisms and further phytoplankton acts as primary producers in oceanic food webs. Space based observa...
Article
Deccan volcanism was synchronous with rifting along the west coast of India. Pre- and synmagmatic rifting has been widely reported in the Deccan Volcanic Province, but extension post-dating magmatism, and predating India – Eurasia collision, is less well known. A recent study in the Kachchh area of western India documented weathering of basalts to...
Article
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Global apparent short wave infrared (SWIR) (1.64– 1.66 m) albedo mapping results from data acquired by Methane Sensor for Mars (MSM) onboard Indian Mars Orbiter Mission from October 2014 to February 2015, are presented. Global analysis of low and high albedo patterns is discussed using MSM apparent SWIR albedo map. The occurrence frequency of MSM...
Conference Paper
Evidence for the presence of water on the Martian surface is preserved in the form of minerals like hydrous sulfates and phyllosilicates within basalts and overlying sedimentary successions. These suggest that surface water once existed on Mars, though it is uncertain as to how and why the water disappeared. The discovery of the hydrous sulfate min...
Article
The Deccan Trap flood basalt volcanism has commonly been considered to have initiated the break-up of India from the Seychelles (c. 62.5 Ma). In Kachchh, Gujarat, western India, the sedimentary succession in the Paleocene Matanomadh Formation was deposited on highly weathered Deccan Trap basalts that were altered to kaolinite before basin formation...
Article
Full-text available
The planetary exploration program of the Indian Space Research Organization is described. The important results obtained from the two successful missions, Mars orbiter Mission (2014) and the earlier Chandrayaan-1 mission (2008-2009) to moon are summarized. High-resolution maps of Valles Marineris enabled several surface, queous and atmospheric feat...
Article
The in-situ sensor based nitrate algorithm is developed by using SUNA and thermal logger derived nitrate and temperature data along the coastal waters of southwest Bay of Bengal. Comparison was carried out between SUNA and in-situ nitrate depicted 88% overestimation in open ocean waters and the regression analysis provided R2=0.568 with SEE=±0.360....
Article
Full-text available
The sulfate mineral jarosite is considered a key indicator of hydrous, acidic and oxidizing conditions on the surface of early Mars. Here, we report an analog terrestrial locality hosting jarosite from Matanumadh, Kachchh, western India, using detailed spectroscopic studies on weathered basalts of the Deccan Volcanic Province (DVP) and overlying tu...
Article
Prediction of the curve of the absorption coefficient of colored dissolved organic matter (CDOM) and differentiation between marine and terrestrially derived CDOM pools in coastal environments are hampered by a high degree of variability in the composition and concentration of CDOM, uncertainties in retrieved remote sensing reflectance and the weak...
Conference Paper
Full-text available
Remote spectral study of lunar sur-face based on measurements from Chandrayaan-1 Moon Mineralogy Mapper (M3) instrument has revealed wide-spread hydration in the lunar surface, strength of which increase towards the cooler higher latitudes, thereby implying that the Moon is not completely anhydrous [1-3]. Remote observations and direct impact exper...
Presentation
Recent high resolution gravity model generated from GRAIL gravity mission provides an opportunity to decipher sub-surface structure of the Moon in more detail than earlier. We have computed Free-air and Bouguer gravity anomalies from GRAIL900C gravity model with degree and order up to 660 and topography data from Lunar Orbiter Laser Altimter. A low...
Presentation
Full-text available
Recent high resolution gravity model generated from GRAIL gravity mission provides an opportunity to decipher sub-surface structure of the Moon in more detail than earlier. We have computed Free-air and Bouguer gravity anomalies from GRAIL900C gravity model with degree and order up to 660 and topography data from Lunar Orbiter Laser Altimter. A low...
Article
Full-text available
Three types of morphological features observed in different lunar crustal terrains were studied and mapped using hyperspectral Moon mineralogy mapper (M3) data onboard Chandrayaan 1 mission in order to assess the utility of cascaded MGM-SAM spectral mixture modeling approach to characterize the surface materials, which may occur as mineral mixtures...
Article
Full-text available
In this paper analyses of bright hazes observed inside Valles Marineris formed during mid-southern spring of Mars is presented. The analysis is performed by using data collected by Mars Colour Camera (MCC) onboard Indian Mars Orbiter Mission on orbits 34, 49 and 52 corresponding to the observation dates of October 28, December 5 and December 13, 20...
Article
Full-text available
This study aims to illustrate how remotely sensed oceanic variables and fishing operations data can be used to predict suitable habitat of fishery resources in GIS. We used sea surface height anomaly (SSHa), sea surface temperature (SST), chlorophyll concentration (CC), photosynthetically active radiation (PAR) and fishing depth as predictor variab...
Conference Paper
Full-text available
Palaeochannels in the western part of Noachis Terra are mapped to understand their origin and also the control on their courses. Relation to impact craters, trends and cross-correlations between their paths indicates to impact-related origin and tectonic lineament controlled courses for the rivers.