nimfr

The normal incidence multifilter radiometer (NIMFR) is a ground-based instrument that provides a time series of the shortwave spectral direct normal irradiance. Additionally, a broadband silicon detector can crudely measure the direct normal broadband irradiance.

These irradiance measurements can be used to infer clear-sky aerosol optical depth and columnar abundances of ozone and water vapor. The NIMFR is one of a class of instruments known as sun photometers.

North Slope Alaska

• Latitude: 71.323
• Longitude: -156.609
• Publication Date: 1998-03-23
• Start Date: 1998-03-23
• End Date: 2020-11-09
• Last Updated: 2020-11-30

https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#nimfr

Gary Hodges

NOAA- Earth System Research Laboratory

Christian Herrera

University of Colorado

http://dx.doi.org/10.5439/1025258
Atmospheric Radiation Measurement (ARM) user facility. 1998, updated hourly. Normal Incidence Multifilter Radiometer (NIMFR). 1998-03-23 to 2020-11-09, North Slope Alaska (NSA) Central Facility, Barrow AK (C1). Compiled by G. Hodges and C. Herrera. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025258.