Year-to-year CO 2 variations at Amsterdam Island in 1980-83

• Published in: Geophysical Research Letters
• Main Authors: Ascencio-Parvy, J., M, Gaudry, A., Lambert, G.
• Other Authors: Centre des Faibles Radioactivités, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1984
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Amsterdam Island
• Online Access: https://hal.science/hal-03516109; https://hal.science/hal-03516109/document; https://hal.science/hal-03516109/file/Geophysical%20Research%20Letters%20-%20December%201984%20-%20Ascencio%25u2010Parvy%20-%20Year%25u2010to%25u2010year%20CO2%20variations%20at%20Amsterdam%20Island%20in%201980%25u201083.pdf; https://doi.org/10.1029/GL011i012p01215

International audience The atmospheric C02 concentrations at Amsterdam Island (37ø41'S; 77ø47'E) from October 1980 to November 1983 showed an increase rate of 0.11 ppm/month for a 3-year average with considerable variability within each year: 0.06-0.14 ppm/month in 1981, 0.04-0.12 in 1982 and 0.13-0.25 in 1983. The natural evasion of oceanic CO • following the 1982/1983 E1 Nino event could account for a part of the anomalous change.