Site summary for HAA - Molokai Island, Hawaii

Aircraft image
Aircraft at HAA - Cessna 421 Map of Molokai Island, Hawaii

Aircraft inlet
Inlet at HAA is on the right side of the pilot’s front window

Samples were collected over the Pacific Ocean west of Honolulu, Hawaii. In addition to providing a vertical profile of carbon cycle gas measurements in this area, HAA 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. Sample collection at HAA started in May 1999, but the site was discontinued in April 2008 because of funding cuts.



HAA Site Data

CO2 Climatology CO2 Time Series
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.


CO Climatology CO Time Series
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.


SF6 Climatology SF6 Time Series
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.


CH4 Climatology CH4 Time Series
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.


N2O Climatology N2O Time Series
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.