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8/20/2019 NRSC 16_Flyer_ASDMA.pdf
http://slidepdf.com/reader/full/nrsc-16flyerasdmapdf 1/4
National Remote Sensing entre
nrsc
Aerial Services & Digital Mapping
NRSC - Factsheet A - 16 (Jan, 2014)
AS&DM has a fleet of two pressurized twin-turbopropBeechcraft B-200 aircraft specially modified with opticalports, pressure box and antennas to install various airborne
sensors and can carryout aerial surveys upto an altitude of 29000 ft.
NRSC Aircraft
Aerial Services & Digital Mapping Area (AS&DMA) of National Remote Sensing Centre (NRSC) of Indian Space Research
Organisation (ISRO) is the civilian Government entity in the country with end-to-end state-of-the-art infrastructure and
capability in the domain of Aerial photography, LiDAR (Light Detection and Ranging) and Synthetic Aperture Radar (SAR)
surveys. Since coming into existence in the year 1975 as Research Flight Facility (RFF) to carry out research and aerial surveys
in India, this area is keeping itself up to date in incorporating latest technologies in line with the ever changing user
requirements. At present, this facility is engaged in the generation of geodatabases required for Disaster Management
Support Programme (DMSP) as well as supporting special scientific missions such as atmospheric studies, calibration of sensors
and navigational instruments used in space missions.
Sensors
The facility has a wide variety of sensors that can acquire
the required terrain information. The data acquisition
capabilities include day and night operating sensors to
measure terrain height, cloud penetrating sensors and multi
spectral imaging.
The facility has imaging/non-imaging and active/passive
sensors such as
• Large Format Digital Camera (LFDC)
• Airborne Synthetic Aperture Radar (ASAR)
• Hyper spectral Imaging
• Laser Scanner with Digital Camera (LSDC)
The data will be further processed to generate value added
products. In addition to standard sensors, the aircraft is also
used for atmospheric studies using multiple monitoring
instruments and for test and evaluation of sensors designed
for airborne as well as space based applications. AS & DMA
also supports special scientific missions.
Data Acquisition
Electronics
GSM 3000
Mount
CCNS &
Aerocontrol
Power
console
Ultracam-D
Data processing facilities
AS&DM has large geospatial database generation facility
having modern data processing and mapping capability
in the areas of airborne data processing, GPS processing,Photogrammetry and GIS. It is supported by highly
qualified and trained professionals in the following areas
to carry out the projects to international standards:
• Flight planning
• Aerial data preprocessing
• High precision scanner
• High end Digital Photogrammetry systems
• Ground control survey facility for collection and
Data processing for Short, Long baselines &
Precise Point Positioning of GPS data
•
CAD/GIS facility• QA/QC team
NRSC Aircraft
LFDC installation in the aircraft
Flight planSystem installation
GPS data collection Digital Photogrammetry lab
8/20/2019 NRSC 16_Flyer_ASDMA.pdf
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National Remote Sensing entre
Capabilities
AS&DM provides mapping and GIS services from airborne
and high resolution satellite data. The core strength of this facility is its ability to provide complete end-to-end
geomatics solutions under one roof from data acquisition
to value added products . The salient features are
• Capability to acquire images of photo scales from
1:400 up to 1:40,000, having resolutions from 5cm
to 80cm
• Capability to provide terrain height information up
to an accuracy of 15 cm with high point density.
• The facility can process the data using the state of
the art processing photogrammetry/ other
advanced methods to generate Digital Elevation
Models (DEMs) and maps.
• Generation of high resolution topographical maps,
GIS data bases which are useful in utility planning,
disaster applications etc.
• Value addition such as 3D city models and
flythrough for better visualization.
• Expertise in collection and processing of precise
ground control points (GCPs) using Geodetic GPS
receivers.
• Support for special scientific missions such as
atmospheric studies, calibration of sensors and
navigational instruments used in future space
missions is also provided by this facility.
LFDC image of Salarjung Museum , Hyderabad (5 cm GSD)
Services
The major services provided by AS&DM
• Aerial surveys using various airborne sensors such
as LFDC and Airborne LiDAR
• Generation of large scale digital topographic maps
• High resolution Digital Elevation Models (DEMs)
• GIS services with aerial data
• 3D city models and flythrough
Generation of large scale 2D/3D maps for various
national and international projects such as flood plain
mapping for Disaster Management Support
Programme, coastal zone mapping for Tsunami
Warning Systems, 3D utility mapping for e-governance
for major cities, creation of topographic map for
Maldives, rail corridor feasibility study for Katra-
Qazigund etc., were carried out.
LFDC image of Buddha statue, Hyderabad (5 cm GSD)
Lumbini park, Hyderabad
Corresponding map Corresponding 3D model
8/20/2019 NRSC 16_Flyer_ASDMA.pdf
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National Remote Sensing entre
Flood Plain Mapping for Disaster Management
The high resolution DEMs
generated under this project
are used in Flood
Management Information
systems for flood modeling
and flood risk assessments.
• Generated high resolution
DEM and GIS spatial
database of 30,000 sq. km
of area using data from
Laser Scanner with Digital
Camera (LSDC). The areas
covered include parts of Mahanadi, Godavari, Ganga
and Brahmaputra river
basins.
• Generation of DEM for
another 30,000 sq.km of
area under DMSP is in
pipeline.
Aerial Data for Cadastral Resurvey
This pilot cadastral resurvey applications was carried out
for Survey Settlement & Land Records, Government of
Andhra Pradesh towards an Integrated Land Information
System (ILIS).
• Cadastral Resurvey of Nizamabad district of Andhra
Pradesh covering an area of 6600 sq. km. using aerial
photography (1:10000) & Photogrammetry techniques.
• A seamless ortho product with an accuracy of 25cm was
made for the entire district.
• Unique project and first of its kind in the country, taken
up for such a large area. Has demonstrated the aerial
survey technology for Cadastral resurvey applications.
Point cloud Surface model Elevation model
Close contour2D mapOrtho image
Major projects
Aerial photography & 3D utility mapping
The data generated from this project is used in
water and sewerage management, transportation,
revenue tax collection, and other location based
services in their day-to-day operations and in
future planning and development.
• Created large scale 3D spatial at 1:1000
(including attribute information) for Hyderabad,
Bengaluru and Kolkata from Aerial Photographs
of 1:6000 for National Informatics Centre (NIC).
• Detailed floor level mapping was carried out
using Photogrammetry techniques.
Cadastral map of part of Nizamabad district
Charminar, Hyderabad
and surroundingsCorresponding 3D model
Sample products of Paradip port, Odisha
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www.nrsc.gov.in
www.bhuvan.nrsc.gov.in
National Remote Sensing entre
International project carried out for the Ministry of External
Affairs (MEA), Government of India.
• The Maldives archipelago comprises of 1189 Islands having
300 sq. km of land area spread over 80,000 sq. km of
ocean, hence was a challenge to extend photogrammetric
control.
• NRSC had acquired Aerial photography in 1:40,000 scale for
entire Republic of Maldives and 1: 6000 scale for selected
islands.
• Digital maps of 1: 25,000 scale for entire Republic of
Maldives & 1: 1000 scale for selected islands were
prepared.
Aerial Photography and Mapping of Republic of Maldives
For further details contact:
General Manager
Aerial Services and Digital Mapping Area
National Remote Sensing Centre
Balanagar, Hyderabad 500037
Phone: +91 (0)40 2388 4470/71
Fax: +91 (0)40 2388 4483
e-mail: [email protected]
Survey sorties for atmospheric research have been conducted for Regional Aerosol
Warming Experiment (RAWEX)
• To characterize elevated layers of aerosol over the Indian region, their
amplitude, frequency of occurrence, seasonal trends and gradients.
• To quantify the contribution of absorbing aerosols (dust and black carbon) in the
regional warming.
• Estimation of the radiative impact of the elevated aerosol layers and assess the
climate implications, including its impact on the commencement advance and
distribution of Indian monsoon.
• CO2 sensor data is also collected along with other atmospheric sensors.
Atmospheric Research
Airborne Synthetic Aperture Radar surveys
The SAR sensor is used to generate data products in disaster
scenario for damage assessment, relief & rescue operation.
• Conducted test flights of Development Model of airborne
Synthetic Aperture Radar (DM-SAR) developed indigenously by
Space Application Centre, Ahmedabad as part of ISRO’S Disaster
Management Support Programme.
• It is an active sensor which has cloud penetrating and all-
weather imaging capability being utilized for mapping and
monitoring of large areas affected by natural disasters especially
floods.
Ground Control Points library (GCPL)
Ground Control Point Library (GCPL) for collection of precise
ground control points (GCPs) for entire Indian region for
processing and generation of Cartosat-1 ortho rectified data.
• A total of 4000 GCPs (WGS 84 reference frame) were
collected for the country with better than 50 cm
planimetric accuracy.
• Apart from GCPs collection, using ‘zero’ order stations,
Indian plate velocity due to tectonic movement was
estimated.
Kosi river breach captured by DM-SAR
2D map of Part of Male
Nephelometer
GCP distribution