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Advanced
Global Atmospheric Gases Experiment (AGAGE), and its
predecessors (the Atmospheric Life Experiment, ALE, and the Global
Atmospheric Gases Experiment, GAGE) have been measuring the
composition of the global atmosphere continuously since 1978. The AGAGE
is distinguished by its capability to measure over the globe at high frequency
almost all of the important gases species in the Montreal Protocol (e.g. CFCs
and HCFCs) to protect the
ozone layer and almost all of the significant non-CO2 gases in the Kyoto Protocol
(e.g. HFCs, methane, and nitrous oxide) to
mitigate climate change. |
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AGAGE is part of the powerful global observing system that is measuring
halocarbons, including bromocarbons, in the Earth's atmosphere. The
original ALE/GAGE/AGAGE stations
(Mace Head, Trinidad Head, Ragged Point, Cape Matalula, and Cape Grim) occupy coastal sites around the world chosen to provide accurate
measurements of trace gases whose lifetimes are long compared to global
atmospheric circulation times. Four stations in Europe (Ny-Ålesund,
Jungfraujoch) and East Asia (Shangdianzi and Gosan) have joined the
AGAGE network in recent years by using the same instrument and
calibration scales.
AGAGE also collaborates with stations at Hateruma Island operated by the
Japanese National Institute for Environmental Studies (NIES), and Monte
Cimone managed by University of Urbio, Italy.
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