by Ria Olivier | May 31, 2024 | Antarctica, SANAE
The reason for losing direct sunlight for a good two months is due to the fact that the Earth is tilted on its own axis of rotation by around 23.5°. The Poles are designated at being at 90° latitude North or South. 90° minus 23.5° puts us at a latitude of 66.5°: the Arctic or Antarctic circles. Anything North of the Arctic Circle (officially designated as 66.30° N) or South of the Antarctic Circle (66.30° S) has alternatively 24 hours of sunlight or 0 hours of sunlight.
Sharing images taken by SANAE63 Team Leader and Medical Abigail Paton taken during the last week
When the South Pole is pointing toward the Sun in the summer, the Sun doesn’t set. Similarly, when it is pointing away from the Sun in the winter, the Sun doesn’t rise. Additionally, the long days and nights pair with the near-constant cold.
Sunrise and Sunset in Antarctica
by Ria Olivier | May 31, 2024 | Commemorative Days, Environment, SANAP
National Environment Month is celebrated in June, with the South African government and captains of industry leading the way by stimulating awareness on environmental issues and challenging all to become agents for change. June is Environment Month under the theme “Think, Eat, Save and reduce your foodprint”. we celebrate our Antarctic region environment.
The theme for World Environment Day and National Environment Month rests on three pillars. According to the United Nations Food and Agriculture Organisation (FAO), every year 1.3 billion tons of food is wasted. Therefore, communities are encouraged to “Think” before discarding food off as waste. The second pillar, “Eat” encourages consuming food in such a way that the environmental impact is reduced. Third pillar encourages communities to make wise decisions about discarding food and “Save” as far as possible.
World Environment Day 2024 focuses on land restoration, halting desertification and building drought resilience under the slogan “Our land. Our future. We are #GenerationRestoration.” We cannot turn back time, but we can grow forests, revive water sources, and bring back soils. We are the generation that can make peace with land.
Environmental events celebrated during National Environment Month include:
- 5-Jun World Environment Day
- 8-Jun World Oceans Day
- 19-Jun World Albatross day
- 21-Jun International Day of the Celebration of the Solstice
by Ria Olivier | May 22, 2024 | Announcement, Antarctica, Jobs, SANAE
The following vacancies are advertised by The Department of Forestry, Fisheries and the Environment (DFFE) for positions based on Antarctica.
Antarctica, SANAE IV (the 4th South African National Antarctic Expedition Station):
The successful applicant will spend a full year (December 2024 to February 2026) at SANAE IV base.
Job Information available
- Diesel Mechanic
- Medical Doctor
- Communications Engineer
- Mechanical Engineer
- Instrumentation Technician
- Electro-Mechanical Technician
- Senior Meteorological Technician
by Ria Olivier | May 11, 2024 | Ecology, International Days, Ornithology
In 2024, World Migratory Bird Day will be celebrated on two days, 11 May and 12 October, aligning with the cyclic nature of 
bird migration in different hemispheres. The World Migratory Bird Day campaign in 2024 will stress the need for proactive conservation measures. This includes reducing the use of pesticides and fertilisers, and where possible, switching to organic farming. Other measures include maintaining and connecting areas of natural vegetation which provide food and shelter for birds and other species, in agricultural landscapes.
Pictures of Antarctic Tern taken by Johan Bothma,1968 (left) and John Cooper, 1984 (right
“Birds are the most mobile organisms on the planet. Their ability to fly vast distances enables them to exploit predictable, short-term peaks in food availability. Almost one fifth of all birds undertake regular movements, usually tied to seasonal cycles. However, such large-scale movements also incur risks from commuting across the landscape. The balance between these costs and benefits determines who stays and who migrates. Recent studies suggest that migration promotes speciation, principally through the formation of sedentary daughter species” – Peter Ryan & Michelle Vrettos
The Antarctic Tern’s closest relative is the Arctic Tern and it is likely that they evolved from Arctic Terns that settled in the south. Among other seabirds, it is less clear in which direction the radiation occurred. Species such as gannets and fulmars are not trans-equatorial migrants and so it is more likely that a few stragglers that crossed the equator established new populations in the opposite hemisphere. (article: “Stay or go? – Migration as an evolutionary driver”) (Arctic Tern, most famous for its long-distance migrations. Flying annually between the northern and southern hemispheres)
Colour Images by Tom McSherry taken on Gough Island in 2017
All images available on Antarctic Legacy of South Africa archive, contributed by Johan Bothma, John Cooper, Tom McSherry
by Ria Olivier | May 7, 2024 | Announcement, Antarctica, Research, SANAP
Announcing a 2nd Edition of the Special Issue focused on “Antarctic Remote Sensing Applications” that will be published in the journal Remote Sensing (IF: 5.000).
The focus of this Special Issue will be on changes that have been and are undergoing in Antarctica mostly driven by climate change but as well by tectonics, volcanism, and erosion, that causes adaptation of Antarctic biota’s occupation and mobility, and of Human presence. Research papers focused on Antarctica that analyze data acquired by remotely operated sensors within the Remote Sensing scope are welcome to this special issue, in particular:
- Antarctic climate change effect on ice sheet and permafrost state and evolution,
- Antarctic sea level rise and sea surface temperature anomalies,
- Antarctic landform formation by tectonics, volcanism, and erosion,
- Antarctic biota occupation and mobility,
- Antarctic past and recent human presence.
SPECIAL ISSUE Information
Researchers working on these topics express an interest in contributing to this Special Issue by sending a potential title, list of authors and abstract (of about 300 words) to gprates@ualg.pt and/or to submit your contributions.
The submission deadline will be 30th September 2024.
CONTACT:
