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Aircraft at RTA - Embraer Bandeirante 110	Map of Rarotonga

Inlet at RTA is on the front right window of the plane

Samples are collected over the South Pacific near Rarotonga in the Cook Islands. In addition to providing a vertical profile of carbon cycle gas measurements in this area, RTA samples were also used to help calibrate the Measurement Of Pollution In The Troposphere (MOPITT) instrument flown aboard NASA's Earth System Enterprise (ESE) Terra satellite. This is a unique site because these are currently the only CCGG network vertical profiles being measured in the Southern Hemisphere. Sample collection at RTA started in April 2000. Flights are conducted by Alistair Macquarie & crews from Air Rarotonga.

RTA Site Data

Figure 1: Annual Climatology is a compilation of all Carbon Dioxide (CO2) time series data that has been collected with the Mauna Loa (MLO) trend removed. The Historical profile includes every CO2 measurement (excluding flagged data) for each month, at each altitude and has been binned to get the monthly average.

Figure 2: Annual Climatology is a compilation of all Carbon Monoxide (CO) time series data that has been collected with the Mauna Loa (MLO) trend removed. The Historical profile includes every CO measurement (excluding flagged data) for each month, at each altitude and has been binned to get the monthly average.

Figure 3: Annual Climatology is a compilation of all Sulfur Hexafluoride (SF6) time series data that has been collected with the Mauna Loa (MLO) trend removed. The Historical profile includes every SF6 measurement (excluding flagged data) for each month, at each altitude and has been binned to get the monthly average.

Figure 4: Annual Climatology is a compilation of all Methane (CH4) time series data that has been collected with the Mauna Loa (MLO) trend removed. The Historical profile includes every CH4 measurement (excluding flagged data) for each month, at each altitude and has been binned to get the monthly average.

Figure 5: Annual Climatology is a compilation of all Nitrous Oxide (N2O) time series data that has been collected with the Mauna Loa (MLO) trend removed. The Historical profile includes every N2O measurement (excluding flagged data) for each month, at each altitude and has been binned to get the monthly average.