Home' Position : Position 90 Aug-Spt 2017 Contents Upcoming Events
14-15 August 2017: Precision
Agriculture Symposium; Sydney, NSW.
14-19 August 2017: FOSS4G Boston
2017; Boston, MA, USA. 2017. foss4g.org
15 August 2017: The June 2016
Coastal Storm – the event, damage,
response and lessons; Sydney, NSW.
17 August 2017: Women In
Surveying Launch and Networking
Event; Melbourne, VIC. bit.ly/2vcPaii
19-20 August 2017: GNSS Control
Surveys Workshop; Springfield, QLD.
22 August 2017: Ozri Melbourne
2017; Melbourne, VIC. bit.ly/2rIfxtF
25 August 2017: Ozri Sydney 2017;
Sydney, NSW. bit.ly/2rrxvjC
28 August 2017: SIBA|GITA Breakfast;
Melbourne, VIC. bit.ly/2vcNmFQ
29 August 2017: Ozri Brisbane 2017;
Brisbane, QLD. bit.ly/2qS1hzt
31 August-2 September 2017: World
of Drones Congress; Brisbane, QLD.
1 September 2017: Victorian Spatial
Summit; Kew, Vic. bit.ly/2qWnKGN
11-15 September 2017:
Photogrammetric Week; Stuttgart,
13-15 September 2017: AIMS
Conference; Hunter Valley, NSW. www.
14-15 September 2017: Construction
Innovation 2017 Forum; Melbourne,
15 September 2017: Tasmanian
Surveying and Spatial Conference;
Hobart, TAS. bit.ly/2rAOHSl
18-22 September 2017: ISPRS
Geospatial Week; Wuhan, China.
20-22 September 2017: Industrial
Internet of Things Summit;
Melbourne, VIC. bit.ly/2s81q1w
25-29 September 2017: International
Astronautical Congress; Adelaide, SA.
26-28 September 2017: INTERGEO;
Berlin, Germany. www.intergeo.de
26-28 September 2017: Interaerial
Solutions (IASEXPO); Berlin, Germany.
The Copernicus Sentinel-2A satellite
captured this image over part of the
Great Barrier Reef off Australia’s
northeast coast on 1 April 2017.
Extending more than 2,000 kilometres
and covering an area of some 350,000
square kilometres, the Great Barrier Reef is
the planet's biggest single structure made
by living organisms, called coral polyps.
Despite its name, it is not a single reef
but contains nearly 3,000 different reefs.
The reef is home to over 1,500 tropical
fish species, 400 types of coral, more
than 200 species of bird, 5,000 species of
mollusc, 500 species of seaweed and six
species of sea turtle. It is also a breeding
area for humpback whales. In recognition
of its significance, the reef was made a
UNESCO World Heritage Site in 1981.
Coral reefs worldwide are increasingly
under threat from coral bleaching, and
this is especially true in the Great Barrier
Reef. Bleaching occurs when algae living
in the corals’ tissues, which capture the
Sun’s energy and are essential to coral
survival, are expelled due to high water
temperatures. The whitening coral may
die, with subsequent effects on the reef
ecosystems and related industries.
The corals of the Great Barrier Reef
have now suffered two bleaching events in
successive years, to the point that severe
coral bleaching has affected two thirds of
the entire reef. Experts are increasingly
concerned about the capacity for the reef
to survive under the increased threat of
In July 2017 the World Heritage
Committee (WHC) decided not to
include it in the UNESCO ‘in danger’
list, at the dismay of scientists and
environmental groups worldwide. The
WHC did state it still had concerns about
water quality targets and land clearing
laws in Queensland.
In 2016, NASA began the three-year
mission known as COral Reef Airborne
Laboratory (CORAL) to thoroughly
survey a portion of the world's coral reefs,
including The Great Barrier Reef, Palau,
the Mariana Islands and Hawaii.
The aim of the mission is to assess
the condition of these threatened
ecosystems and understand their relation
to the environment, including physical,
chemical and human factors. CORAL is
using advanced airborne instruments,
including the Portable Remote Imaging
Spectrometer (PRISM), and in-water
measurements. With new understanding
of reef condition, the future—and indeed
the fate—of ecosystems like the Great
Barrier Reef can be predicted. The results
of CORAL are yet to be released. ■
Copernicus Sentinel data
(2017), processed by ESA,
CC BY-SA 3.0 IGO.
Reef in grief
4 position August/September 2017
Links Archive Position 89 Jun-Jul 2017 Position 91 Oct-Nov 2017 Navigation Previous Page Next Page