Annual Report 2000 - 2001
Survey Of India
Survey of India, the Surveying and Mapping Organisation
of Govt. of India bears a special responsibility to ensure
that the country's domain is explored and mapped suitably
to provide vast variety of maps for expeditious and integrated
development, security and prosperity of the country now and
for generations to come. Besides, it has also been carrying
out Geodetic and Geophysical Surveys and allied research work
in the areas of tidal, gravity, geomagnetic and project surveys
for tunnel alignment, crustal movement and dam deformation
studies etc. Highlights of some of the significant activities
during the period under report are as under:
Technology Development Projects
- Installation of Digital tide gauges on coast line and
islands in the process of modernisation of network of tidal
observatories for collection of tidal data for accurate
tide prediction and study of variation of sea-level etc.
- Standardisation of symbols to be used in digital environment
were finalised and circulated.
- A proposal for introduction of dual series of maps: one
series for use by defence forces and second
for civil users has been formulated for presentation in
Basic Research Projects
(i) Geodetic and Geophysical
- Data generation and its processing for redefinition of
Indian Geodetic Datum, in the context of deep continental
- Adjustment of Second Level Net of India to refine Vertical
- Repetitive measurements using Global Positioning system
and other sophisticated instrumentation for the study of
seismicity and seismotectonics in earthquake prone areas
and analysis of results.
(ii) Oceanographic work:
- Analysis of Tidal Data for updating the Tidal Constituents
for using these for improvement in prediction of Tides.
- Maintenance of National Tidal Data Centre and processing
of tidal data of various ports.
Technologies Transferred/ Commercialised
- Technology for indigenous production of Photo opaque as
an import substitute item for touching of film negatives
has been developed. The production of photo opaque is being
supplied to various Survey of India Directorates/ Reproduction
- The production of touch-up fluid again an import subsitute
item, required to correct scribed originals is continued
in R&D directorate for using within the department.
Technology Demonstration Projects Undertaken
in the Area of Socio-Economic Development
(i) District Planning Map Series - Project on
preparation of district planning maps containing thematic
information is continued. Under this programme maps of 144
districts have so far been printed by Survey of India,26 maps
are under printing and 83 maps are at various stages of mapping.
Districts planning maps for remaining half of the districts
are being processed by National Atlas and Thematic Mapping
Organisation (NATMO). These maps are being utilised by the
Government, non-government organisations and private agencies
in socio-economic development of the nation.
(ii)Geodetic and Geophysical surveys
(a) Geodetic Surveys for tunnel alignment and
other structures such as Dam, Power House Complex etc. for
Tala Hydro-Electric Project in Bhutan has been in progress.
(b) Tidal, gravity and magnetic observations across the country
for various scientific studies are continued. During the year,
the Geodetic and Research Branch (G&RB) is committed to
carry out the following tasks as departmental commitment.
- GPS observations - 150 stations
- Precision levelling - 3000 lin km
- Gravity observations - 100 stations
- Geomagnetic observations - (i) 35 Repeat Stations
(ii) 50 Profile Stations
(iii) Topographical Surveys: During the period under report
the following tasks are committed.
(a) Topo Triangulation ... 15,187 sq. km.
(b) Aerial Triangulation ... 44,140 sq. km.
(c) Traverse ... 4,500 sq. km.
(d) Levelling ... 10,200 lin km.
(e) Photogrammetric surveys on various scales ... 61,260
(f) Ground surveys on various scales... 99,540 sq. km.
- Repetitive Geodetic and Geophysical Surveys viz. GPS observations,
Gravimetric observations and Geomagnetic observations were
continued for Crustal movement studies in the states of
Himachal Pradesh, Uttar Pradesh and Latur area of Maharashtra
to generate data for further research work with regard to
seismicity and seismotectonics activities in earth-quake
- Digital Mapping Centres have developed several applications
softwares to create DCDBs for value added digital products.
Some of the major activities are given as under:-
- Development of Programme for DVD-1 format to DGN
format and DGN format to DVD-1 format.
- Development of software for evaluation of DEM by generating
graphic plot of profiles with a matrix of `Z' values.
- To demonstrate the capability/ feasibility of the
digital environment regarding digitisation of tidal
charts, interpolation and error correction.
- Beta testing of Soft Space S/W developed by ADRIN
AND DATDEM by SAC for its cartographic application on
Silicon Graphic System.
- A team of two officers from Survey of India participated
in the 19th Indian Scientific Expedition to Antarctica.
The team carried out verification and revision of map of
Maitri and surrounding area on 1:5,000 scale which was surveyed
during 11 & 12th expeditions. The team also carried
out densification of network of control points in unsurveyed
area and detailed survey on 1:10,000 scale with one metre
contour interval in the overlapping area surveyed during
18th expedition, in addition to glacial dynamics studies
of DG glacier with Geological Survey of India.
Two officers from Survey of India are also
participating in the 20th Antarctica Expedition.
Any Other Information of Interest
- International Boundaries:
Demarcation, Relocation and Construction of
boundary pillars and preparation of Strip-Maps of Indo-Nepal,
Indo-Pakistan and Indo-Bangladesh boundaries remained in progress
during the year.
- Topographical Surveys and Mapping:
(a)Survey on 1:25,K scale are being taken up
on selective basis according to the priorities indicated by
the Central/ State Governments and other user ommunities.
(b) Most of the maps on the primary scale of 1:50,K covering
the entire country have been printed. Revision surveys for
updating these maps is in progress.
(c) Maps on 1:250,K scale covering the entire country have
been published and updation of maps is in progress.
(d)Compilation of various Geographical maps, State maps, Guide
maps etc. are being continuously carried out. Also surveys
and mapping pertaining to various developmental schemes and
projects of national importance are being executed.
During the year 658 Departmental, 397 Extra
departmental, 58 Geographical/ District Planning Maps are
expected to be printed.
(a) Digitization of 361 maps out of 394 maps
on 1:250 K scale has been completed. Digitisation of 1:50
K and 1:25 K scale maps is in progress.
(b)Printing of maps of reorganised states of Madhya Pradesh,
Bihar, Uttar Pradesh and new states of Chhatisgarh, Jharkhand
and Uttaranchal using digital technology was completed. The
maps received appreciation during their presentation.
- Printing and Publication:
Other than the regular publication of topographical
maps on various scales and Geographical maps etc, the following
publications were also brought out:
(a) Magnetic Bulletin of Sabhawala Magnetic observatory.
(b) Indian Tide Tables - 2000.
(c) Hugli River Tide Tables - 2000.
- Human Resources Development and Training
Various courses connected with surveying and
mapping, digital cartography and special course on GPS Technology
were continued at the Survey Training Institue, Hyderabad.
Officers/ trainees from within the department, other govt./
non govt. organisations and foreign countries are undergoing
training in the Survey Training Institute.