| Station Information | |
|---|---|
| Category: | Baseline Station |
| Status: | Operational - 1976, Major upgrades - 1997, 2000 and 2008 |
| Photos and Drawings: |
Photos of MLO system (pre-2010) Photos of MLO system in 2020 Station flow diagram |
| Links: | WMO/GAW station information page |
The Mauna Loa system was upgraded in April 2000. The new aerosol system was run in tandem with the old system for a year so measurements could be compared. The current system improvements include: size cuts (1 and 10 um), humidity control, a nephelometer capable of back scatter measurements and the aethalometer measurements were supplemented those made by a Particle Soot/Absorption Photometer (PSAP). In 2011, a CLAP was installed and in 2013, after almost 2 years of overlapping measurements, the PSAP was replaced by the CLAP. A 7-wavelength aethalometer (AE33) was added in 2014, and an older aethalometer (AE31) was removed from service in 2017.
MLO Aerosol Properties Plots
Statistical Summary Plots - Multi-year record of final aerosol and atmospheric property data.Do not quote or cite.
Atmospheric Properties
These plots are designed to provide a quick look at the measured aerosol properties. They display raw unedited data, but known corrections for instrument errors have been applied.
| Short-Term Status Plots (last 5 days) | Long-Term Averaged Plots (hourly averages, last 30 days) |
|---|---|
| Overview | Overview |
| Absorption Overview | Absorption Overview |
| Nephelometer | Nephelometer |
| Aethalometer | Aethalometer |
| Housekeeping | Housekeeping |