Instrument

HARP
HIAPER Airborne Radiation Package

The HIAPER Airborne Radiation Package (HARP) is an in situ airborne radiometer that was developed by NCAR, the University of Colorado, the Leibniz-Institute for Tropospheric Research, Metcon, Inc., and enviscope GmbH. The instrument provides measurements of actinic flux and spectral irradiance. HARP operates in the 280-680 nm wavelength range for actinic flux and the 260-2400 nm range for irradiance. HARP has a typical sampling frequency of 1 Hz.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Measurement Type

Spectrometer/Radiometer

Measurement/Variables

Earth Science > Atmosphere > Atmospheric Radiation > Actinic Flux

Earth Science > Atmosphere > Atmospheric Radiation > Spectral Irradiance

Earth Science > Atmosphere > Atmospheric Radiation

Vertical Measurement Regions

Troposphere

Temporal Resolution

1 Hz

Spatial Resolution

Point

Measurement Frequency

441-1071 THz (actinic flux), 125-1153 THz (spectral irradiance)

Calibration Details

https://www.eol.ucar.edu/instruments/hiaper-airborne-radiation-package

Online Information

Lead Investigator
Samuel R. Hall, Kirk Ullmann
Technical Contact
Samuel R. Hall
Instrument Maker
NCAR, University of Colorado, Leibniz-Institute for Tropospheric Research, Metcon, Enviscope Gmb
Funding Source
NSF

DOI: https://doi.org/10.5065/D6FF3QDN