Ice core - Wikipedia
Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach depths of over two miles (3.2 km), and contain ice up to 800,000 years old. The physical properties of …
Core questions: An introduction to ice cores - NASA Science
2017年8月14日 · Researchers drill ice cores from deep (sometimes more than a mile, or more than 1.6 kilometers) inside the polar ice sheets in Greenland and Antarctica, as well as some …
About Ice Cores - NSF Ice Core Facility
Ice cores are cylinders of ice drilled from ice sheets and glaciers. They are essentially frozen time capsules that allow scientists to reconstruct climate far into the past. Layers in ice cores …
Ice core basics - AntarcticGlaciers.org
2020年6月22日 · Ice cores have been drilled in ice sheets worldwide, but notably in Greenland [3] and Antarctica [4, 5]. High rates of snow accumulation provide excellent time resolution, and …
Homepage | NSF Ice Drilling Program
2024年10月25日 · The U.S. National Science Foundation Ice Drilling Program (IDP) was established by the National Science Foundation (NSF) to lead integrated planning for ice …
Ice drilling - Wikipedia
Ice drilling allows scientists studying glaciers and ice sheets to gain access to what is beneath the ice, to take measurements along the interior of the ice, and to retrieve samples.
Climate at the core: how scientists study ice cores to reveal Earth's ...
2014年5月1日 · Setting up base camp and drilling into the ice may take six to eight weeks for two cores that are each 700 feet long, Osterberg says. Some researchers, particularly in …
Blue Ice Drill | NSF Ice Drilling Program
The Blue Ice Drill (BID) is an agile drill capable of retrieving cores of approximately 241 mm (9-1/2 inches) in diameter. The BID system was originally designed with a depth capability of 30 m, …
Drilling Tech | NSF Ice Core Facility
The National Science Foundation Ice Core Facility (NSF-ICF) — formerly the U.S. National Ice Core Laboratory (NICL) — is a facility for storing, curating, and studying meteoric ice cores …
NSF-funded deep ice core to be drilled at Hercules Dome, Antarctica
2020年12月8日 · Antarctica’s next deep ice core, drilling down to ice from 130,000 years ago, will be carried out by a multi-institutional U.S. team at Hercules Dome, a location hundreds of …