Atomic Minerals Data
Centre (AMDC) is responsible to meet all the IT related needs of
the Directorate. The major activities of the group are as follows.
AGRS Data processing
In
its earlier incarnation as Central Data Processing Unit (CDPU), established approximately
30 years back, the center started developing computer programmes
for processing Airborne Gamma Ray Spectrometry (AGRS) data, generated
from routine AGRS survey conducted by the Directorate. The data
processing technique developed by the group is in conformity with
IAEA Technical Reports Series No.323 published in 1991. Various computer
programmes/ softwares and their objectives developed in this regard
are as follows:
|
Sl.No.
|
Software developed
|
Objectives
|
Category
|
|
1.
|
MCA
|
MCA spectrum peak
finding/fixing and integration of MCA data for K, U, Th windows
|
Quality Control
|
|
2.
|
Velpro
|
Validation of
Fiducial markings
|
|
3.
|
RAWPRINT
|
Verification of
record length and applying corrections
|
|
4.
|
BGCAL
|
Computation of
calibration parameters (Background, Attenuation coefficients,
stripping factors and system sensitivities) from test strip
and test pad data.
|
System’s calibration
|
|
5.
|
ATTNCOEFF
|
|
6.
|
COMPTONCOEFF
|
|
7.
|
VALID
|
Filtration of
K, U, Th and total data for errors/jitters
|
Data processing
|
|
8.
|
CNC
|
Background,
Compton (interchannel) and height correction for K, U & Th.
|
|
9.
|
GRID
|
Gridding of AGRS
data
|
|
10.
|
PARMWISE
|
Calculation
of basic parameters (U, Th, K, Total & Magnetic) and ratio
parameters (U/Th, U/K & Th/K)
|
|
11.
|
CONTOUR
|
Presentation of
grid data in contour map and colour images
|
Data presentation
|
|
12.
|
PROFILE
|
Different
steps undertaken to process the AGRS data are presented pictorially
in
the figure. Nearly
15 GB data from approximately 7,00,000 line km of flying is presently
available in the data library.
Database development
Database development
is another major field, the center is mostly engaged in. Beginning
with a modest development of a database (LOGIC-D) for borehole logging
data and (INDUGEO) for U-occurrences in India, the group is presently
involved in collecting, classifying, synthesising and storing data
in databases for easy retrieval. The geoscience database on
atomic mineral exploration was designed and developed in paradox
software at AMD headquarter, Hyderabad. The same was deployed
at all regional centers where database is being populated. Works
are at hand for design and development of geoscience database in
oracle under 3-tier architecture.
In addition, a number
of utility databases have also been developed for various in-house
applications.
Local & Wide Area Network
AMDC
presently operates a network of computer comprising a number of
network servers with
operating systems such as Windows NT, LINUX and AIX. Through
ISDN connectivity communication between headquarter and various regions
is established. This facility is in use on regular basis for exchange
of reports, maps, research papers, and other information between
various units of AMD.
Web designing
AMDC
has been entrusted with the
task of design, development, promotion
and updating of AMD's website depicting all the activities
of AMD. It is
responsible for updating all the information on the site on a regular
basis.
Anunet
Data center is actively
collaborating in the VSAT based ‘ANUNET’ project of DAE. ANUNET provides
satellite-based communication between all major centers of DAE. It
has two data channel and a voice channel. To provide seamless voice
connectivity, EPABX exchange of AMD has been configured with ANUNET.
AMD library server is also connected to LAN and ANUNET. Data center
has provided network and ANUNET connectivity to its server. Users
can browse library information for their routine requirements.
A video conferencing
system has been setup to communicate between various DAE units using
VSAT based connectivity. Data encryption technique is being used
for secure communication during video-conference.
Map digitisation and data integration using GIS
Digitisation
of geological maps and its integration with spatial data has been
one of the major works taken
up by the data center since 1997. The digitised maps are being used
for exploration activities and geo-technical investigations. Nearly
fifty maps in various scale have so far been digitized covering
large areas
of the country. Spatial databases for Geochronological and Geotechnical
data have been created and integrated with the geological maps
using GIS packages.