(MLO) Mauna Loa, Hawaii United States
Site Description
Station Information
Category: Baseline Station
Status: Operational - 1976, Major upgrade - October, 1997
Photos:
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 replacement of the aethalometer with a Particle Soot/Absorption Photometer (PSAP).

MLO Aerosol Properties Plots

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.

Do not quote or cite.

Atmospheric Properties

Short Term Plots (smoothed corrected, 6 min. averages, includes up to last 48 hours of data transferred to GMD): Long-term Plots (smoothed corrected, hourly averages, last 30 days of data):

MLO System Status

These plots are designed to allow NOAA/ESRL/GMD staff to review current station operations. Feel free to browse these plots, but be aware that they are raw unedited data.

Most Recent Atmospheric Properties:
  • Extensive Parameter Summary (scattering, absorption, condensation nuclei)
  • Intensive Parameter Summary (single scattering albedo, backscattering fraction, Ångström exponent)
  • Light Scattering and Absorption Coefficients
  • Light scattering, Humidified Nephelometer
  • Aerosol Intensive Properties, Humidified Nephelometer
  • f(RH) (ratio of wet to dry nephelometer scattering coefficients vs. time)
  • Fitted f(RH)
  • Humidograph (ratio of wet to dry nephelometer scattering coefficients vs. relative humidity)
  • CN concentrations
  • Wind speed and direction
  • 3w_Bap
Short Term Status PlotsLong Term Status Plots