nrsc 04_flyer_geosciences.pdf

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  • 8/20/2019 NRSC 04_Flyer_geosciences.pdf

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    National Remote Sensing entre

    nrsc 

    Geosciences

    NRSC - Factsheet A - 04 (Jan, 2014)

    Major activities include

    •   Geomorphological mapping

    •   Geo-hazards

    •   Geo-engineering

    •   Geo-environment studies

    Research &Developmental activities on

    •   Hyperspectral data analysis

    •   Interferometry

    •   Satellite gravity

    •   Geodetic GPS•   Planetary geology

    Geomorphology and lineament mapping

    •   Essential input for applied geological studies

    such as ground water, mineral mapping,

    geotechnical and geo-engineering

    applications.

    •   Nationwide mapping executed in association

    with Geological Survey of India (GSI)

    Landforms (coral reef, sand dune, offshore bars and

     palaeochannels) mapped from satellite image

    Lineaments (fold axis, faults and joints)

    mapped from satellite image

    Geo-hazards

    •   Assessment of the geological disasters such as

    landslide, earthquake and volcanic eruption

    •   Landslide hazard zonation (LHZ) and inventory

    mapping along important tourist and pilgrim

    routes in the Himalayas.

    •   Damage assessment for all major earthquakes.

    •   Maps and reports are hosted in Bhuvan

    Recently for the Uttarakhand disaster, the chain of 

    events that led to the massive damage in Kedarnath

    area has been reconstructed. Landslide inventory

    mapping was also carried for the entire area.

    Palaeochannel

    Active channel

    Sand dune

    Landslide hazard zonation (2001) and event-based

    inventory (2013) around Kedarnath

    Sonprayag

    Rambara

    Before

    After

    LHZ map (2001)

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    Geo-environmental studies

      Status of underground coal fire and itsdynamics is analysed through its surface

    manifestations for coalfields such as Jharia and

    Raniganj periodically

    •   Thermal infrared channels of satellite data are

    used to map coal fires

    Geo-engineering/Geotechnical studies

    •   Oil pipeline alignment and feasibility study for

    hydroelectric dam site selection

    •   Geological parameters derived from satellite

    data used to provide a suitable site for

    engineering structures

    Spectroscopic studies and satellite data analysis for

    bauxite mapping in parts of Jharkhand 

    Spectroscopy of Rocks/minerals

    •   Spectral library for different rock types is

    generated in the spectroscopy lab

    •   Spectral features of rocks are indicative of 

    mineralogy

    •   Spectral features with reference to

    geochemical datasets are being convolved to

    satellite data for mapping the potential areas

    of Kimberlite, bauxite and limestone.

    Satellite image showing damaged buildings and roads(yellow circles) due to the Kashmir earthquake in 2005

    Coal fire map (2003) of Jharia and surrounding areas

     prepared using satellite image

    Lineament mapping around a hydroelectric dam site in

    a river valley in Himalayaswww.nrsc.gov.in

    www.bhuvan.nrsc.gov.in

    National Remote Sensing entre