Concept information
Preferred term
CACHE-PEP
Definition
- CACHE will use data from ice cores, ocean sediments, lake sediments and contemporary measurements of atmospheric chemistry to cast new light on the climate of the last million years. The objective is to determine the key drivers and feedbacks that have controlled climate change and the chemistry of the global atmosphere past and present, and to improve computer models used to predict climate change. Main objectives are to: Extend the existing 10,000-year climate record for the Americas by sampling from the sub-Antarctic, through the Antarctic Peninsula to the South Pole; Understand the relationship between the Antarctic and global climate over timescales up to a million years; Determine the main causes and amplifiers of climate change over the last ~1My; Quantify the chemical exchanges between the atmosphere and Antarctic ice and snow; Understand how changes in the amount of ice and snow on Earth affect the chemistry of the atmosphere. CACHE will drill and analyze the first complete Holocene ice core climate record from the Antarctic Peninsula. The results will be combined with those from the cores recently extracted from Dome C and Berkner Island, existing data from other sectors of Antarctica, and other climate history data worldwide. This will provide an unprecedented record of the links between carbon cycle. Component Projects of CACHE are: CACHE-CEFAC: Chemical Exchange and Feedbacks between the Atmosphere and Cryosphere; CACHE-DRAM: DRivers and AMplifiers of late Quaternary climate change ; and CACHE-PEP: Natural climate variability - extending the Americas Pole-Equator-Pole palaeoclimate transect through the Antarctic Peninsula to the Pole http://www.antarctica.ac.uk/bas_research/current_programmes/cache.php (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/ba565e80-c481-4e75-b133-60cb72bf7d4a
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