Antarctica, the fifth largest, uninhabited, southern most
planet of Earth holding 75% of freshwater reserves continues to enchant
scientific community. The inhospitable conditions, extreme weather conditions
(extreme cold, dryness and windiness) haven’t deterred the spirits of the
nations to explore the humongous diversity of fauna and flora of the “white
continent” with no sovereign status. As early as 350 BC, Greeks predicted the
existence of a landmass in the Southern most end of like the Arctic in the
North. Antarctica is named after Greek word, antarktike, meaning opposite of North. Spanning the Antarctica
circle and surrounded by the Southern Ocean, the continent formed 25 million
years ago, is spread over an area of 14 million square km. Almost 98% of the
continent is covered with ice which is 1.5km thick. If all the ice of
Antarctica melts, sea levels will rise by about 60mts. Like other continents,
Antarctica has several geographical features like valleys, glaciers, mountains,
volcanoes, rivers and lakes. Recent reports of breakdown of Western Antarctica
ice sheet raised several concerns. Being
a cold desert with annual precipitation of 200mm, the continent is devoid of
native inhabitants. As of 2016, around 1000 to 5000 people from 135 countries
are residing the region. None of them stay there permanently and members of
scientific expeditions are periodically substituted to carry out research
activities.
In 1773, Captain James Cook first discovered this extremely
vast and rather unique continent while he was crossing the Antarctica circle.
Later expeditions from US, UK, Russia, Australia, New Zealand circumnavigated
the continent to explore the marine life, sub Antarctica islands and to map the
region. Unlike the Arctic region which was explored for its mineral and oil
wealth, less is known about Antarctica till the late 19th century.
In 1947, US under the Operation Highjump sent largest ever expedition to the
region. Gradually other countries started making forays into the region while
Britain, France, Australia, Norway, New Zealand, Chile, and Argentina laid
claims on Antarctica. To stave off territorial claims and ban military&
mining activities on the continent, Antarctic Treaty System was instituted in
1959 which entered force in 1961. 53 countries are party to the treaty as of
2016. It basically defined the continent as all the land and ice shelves south
of 60˚S latitude as
a scientific preserve and established freedom of scientific investigation. The
original 12 signatories included the countries which were on Antarctica during
the International Geographical Year (IGY) 1957-58. Apart from the
aforementioned seven countries, the list included-Belgium, Japan, South Africa,
Soviet Union and the US. India became party to the treaty in 1983 with the
establishment of its first research station Dakshina Gangotri. The treaty didn’t
recognize claims of nations, upheld the principle of common heritage of mankind
and soon established a secretariat at Buenos Aries in 2004.
Dakshina Gangotri
Antarctica is believed
to be part of the southerly supercontinent Gondwana, the part containing all
landmasses of Southern hemisphere. Around 140 million years ago, Africa and South
America split from Gondwana under severe strain with South Atlantic Ocean
separating them. From the Eastern-half Madagascar split from India, Australia
and Antarctica together moved down South. Until about 45 million years ago,
both clung together, Antarctica began to freeze while Australia drifted
northward. Even now Australia continues to move North 1.2 inches every year. The
landmass which is now the cold continent was once home to lush evergreen rain
forests. Due to the extreme cold temperatures of Antarctica all the organisms
that existed were fossilized and preserved in perfect conditions. Scientific
community enthusiasm stems from the prospect of exploring fossilized remains,
meteorites etc. Also , Antarctic skies
are clear and free of radio interference and hence ideally suited for deep
space research, satellite tracking and has a great potential for covert
surveillance. Though a ban was imposed on militarization of the continent US,
Chile, Argentina already have permanent military bases. Countries like China,
Iran, Turkey and Pakistan are using their bases “for dual-use, scientific
research that is useful for military purposes”.
India after the victory of the 1971 Bangladesh war, wanted to
assert its global status and steadily harbored a secret ambition to reach the
south pole and setup a research station at Antarctica. To realize this dream, a
young researcher from the Physical Research Laboratory (PRL) Paramjit Singh
Shera was deputed to join the 17th Soviet Antarctica expedition. The
joint agreements between ISRO and Hydro meteorological Centre of Russia, laid
the foundations for India’s Antarctic Expeditions. In 1977, Indira Gandhi
commissioned a study in 1977 for establishing a station at Antarctica. In May
1981, department of Ocean Development was setup and Operation Gangotri was
unveiled. India launched its first expedition in December 1981 which took off
from Goa. Hiring an ice-cutter MV Polar Circle from Norway, the expedition
headed by Dr. Syed Zahoor Qasim with 21 scientists, personnel, technicians, and
Naval officers covered 21,366 km in 77 days and landed in Antarctica. By 1983,
India built its first base in Antarctica-Dakshina Gangotri. After establishing
base in Antarctica, India ratified the Antarctic Treaty as a consulting member.
India’s successful Operation Gangotri caught the developed World by surprise. India
has become member of Scientific Committee on Antarctic Research (SCAR) in 1986.
Before 1988, a close group of 12 signatories exerted full control over
Antarctica. By ratifying treaty, India advocated for the Third World to be part
of Antarctic Governance. India also favored abrogation of Convention on the
Regulation of Antarctic Mineral Resource Activities and supported the Protocol
on Environmental Protection to the Antarctic Treaty (AEP). Consequently, all
the countries that laid claims on Antarctica had to disband their mining plans.
India ratified AEP in 1992 reaffirming its commitment to protecting the
environment of Antarctica.
MV Polar Circle
India’s first permanent base Dakshin Gangotri was setup
during the third annual expedition 1983-84 at Princess Astrid Coast. It was a
double-storey station had fully equipped laboratories to carry out studies in
meteorology, seismology, geology, glaciology, microbiology, acoustics, and oceanography.
Ever since establishment of the base, annual expeditions to Antarctica have
become a regular feature. Unfortunately, India had to abandon the base in 1990
due to inundation.
India commissioned second permanent station Maitri in 1989 in
the rocky Schirmacher Region, East of Antarctica. It is surrounded by one of
the biggest fresh water lake-Lake Zublake or Priyadarshini. After its
establishment, in 1990-91 over 250 scientists and Naval personnel over
wintered. By 1990, studies at Antarctica have become more inter-disciplinary
and several prestigious Indian Institutes participated in the annual
expeditions. Slowly the studies have become more environmental centric with
issues like depletion of ozone layer, monitoring UV-B radiation, greenhouse
effect dominating the agenda. Ministry of Earth Sciences in 1998 established a
nodal agency, The National Centre for Antarctic & Ocean Research (NCAOR) to
implement India’s Antarctic Program, monitor the maintenance of permanent
station, establish National Antarctic Data Centre and Polar Museum.
Maitri
By 2012, India has setup another permanent research station
Bharati using 134 recycled shipping containers. It is located 3500km east of
Maitri with core areas of research on tectonics, oceanography, and geological
structures. The research focus of Bharati is to understand the phenomenon of
continental breakup and to collect evidences of shared history of India and
Antarctica. (Both shared same coastlines and were part of supercontinent
Gondwanaland). Bharati built from prefabricated shipping containers, has an
ambient working temperature inside so that researchers can work comfortably
irrespective of the harsh temperatures outside. The temperatures range from
-89C in Winter to -25 C in summer. Over 35 scientists and 10 Army personnel
stay throughout the year in this station. It can be disassembled without
leaving a trace of brick and completely conforms to AEP.
Bharati
To facilitate polar expeditions India has a set of Ocean
Research Vehicles (ORV). The phenomenal contributions of ORV Sagar Kanya
constructed in 1983 and ORV Sagar Nidhi commissioned in 2008 are highly
reckoned.
ORV Sagar Nidhi
NASA, National Science Foundation (NSF) and Smithsonian
Institution through Antarctic Search for Meteorite Program (ANSMET) recently
renewed search for meteorites in the cold continent, to know more about the
primitive building blocks of the solar system. ANSMET so far collected 23,000
specimens. Countries are keenly monitoring Antarctic ice sheets since they have
larger implications on climate change. Any rapid meltdown of ice will cause
steep rise in sea levels. Antarctica has
become a testing and acclimatization ground for astronauts traveling to space.
The desert like conditions of Antarctica closely resemble the conditions on the
surface of Mars. NASA has tested robots to be launched on Mars in Antarctica.
More recently the Commission for Conservation of Antarctic Marine Resources
announced a marine protected area of 598,000 sq miles in Ross Sea. The region
also called “Last Ocean” is largely untouched by humans and its nutrient rich
water are home to around 16,000 species.
Scientific advancement has come a long way. Gone are those
days when people were skeptical of exploring rather frigid, desolate and
forbidding lands. Thanks to rapid sophistication and innovation, scientific
community is keen on embarking polar expedition to understand and unravel the
mysteries of unexplored lands.
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