Dolleman Island facts for kids
 Dolleman Island
Location in Antarctica
Location in Antarctica
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| Geography | |
|---|---|
| Location | Antarctica |
| Coordinates | 70°37′S 60°45′W / 70.617°S 60.750°W |
| Administration | |
| Administered under the Antarctic Treaty System | |
| Demographics | |
| Population | Uninhabited |
Dolleman Island is a round island covered in ice. It is about 24 kilometers (13 nautical miles) long. You can find it about 15 kilometers (8 nautical miles) east of Cape Boggs. This island is located off the east coast of Palmer Land in Antarctica.
Explorers from the US Antarctic Service discovered Dolleman Island in 1940. They were part of the East Base expedition. The island was later named to honor Hendrik (Henry) Dolleman. He was a retired United States Air Force serviceman. Henry Dolleman also worked with Admiral Richard E. Byrd on Antarctic expeditions. He was a sled dog trainer too! In 1942, he even received a special award, the Soldier's Medal, for helping with two polar rescue missions.
Studying Ice on Dolleman Island
Scientists often visit Dolleman Island to study its ice. The British Antarctic Survey (BAS) has drilled into the ice many times. They did this in 1976, 1986, and 1993.
What are Ice Cores?
When scientists drill into the ice, they pull out long cylinders of ice called ice cores. These cores are like frozen timelines. Each layer of ice holds clues about the past. Scientists can learn about old climates and how the atmosphere changed.
Discoveries from Ice Cores
By studying the ice cores from Dolleman Island, scientists have learned important things. They found out how certain chemicals move within the ice. They also identified signs of past changes in how air moves around the Earth. This helps us understand our planet's climate history.
You can find more information about Dolleman Island and Henry Dolleman in the book Antarctic Command. It was written by Captain Finn Ronne.
See also
- In Spanish: Isla Dolleman para niños
