Maïdo observatory: a new high-altitude station facility at Reunion Island (21° S, 55° E) for long-term atmospheric remote sensing and in situ measurements

[摘要] Since the nineties, atmospheric measurement systems have been deployed atReunion Island, mainly for monitoring the atmospheric composition in theframework of NDSC/NDACC (Network for the Detection of Stratospheric Change/Network forthe Detection of Atmospheric Composition Change). The location of ReunionIsland presents a great interest because there are very fewmulti-instrumented stations in the tropics and particularly in the southernhemisphere. In 2012, a new observatory was commissioned in Maïdo at2200 m above sea level: it hosts various instruments for atmosphericmeasurements, including lidar systems, spectro-radiometers and in situ gasand aerosol measurements.

This new high-altitude Maïdo station provides anopportunity:
1. to improve the performance of the optical instruments above the marineboundary layer, and to open new perspectives on upper troposphere and lower stratosphere studies;
2. to develop in situ measurements of the atmospheric composition for climatechange surveys, in a reference site in the tropical/subtropical region of the southern hemisphere;
3. to offer trans-national access to host experiments or measurement campaigns for focused process studies.

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