NOAA logo National Oceanic and Atmospheric Administration (NOAA), Earth System Research Laboratory (ESRL)

What does this program measure?

The four-wavelength nephelometer (below) measures at 450, 550, 700, and 850 nm and has a 45 minute 1/e response time.

Old NOAA 4-Wavelength Nephalometer at Mauna Loa

How does this program work?

Why is this research important?

Are there any trends in the data?

How does this program fit into the big picture?

What is it's role in global climate change?

Comments and References

This project is no longer active.

Lead Investigator(s):


MLO Contact(s):

Dr. John E Barnes
808-933-6965 (x222)

Web Site(s)

not applicable

Date Started


Related Programs

Air Quality Control