Retrieval of snow physical parameters using a ground-based spectral radiometer

Katsuyuki Kuchiki, Teruo Aoki, Tomonori Tanikawa, Yuji Kodama

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A ground-based spectral radiometer system for albedo and flux (GSAF) was developed to retrieve a mass concentration of snow impurities and effective snow grain size automatically. The GSAF measures spectral albedo and diffuse fraction with a single sensor to omit a radiometric calibration. The deviation from an ideal cosine response of the sensor to insolation is precisely corrected. The snow physical parameters can be retrieved with the GSAF even under cloudy conditions, because the effect of illumination conditions on albedo is considered in a retrieval algorithm. Continuous measurements with the GSAF at two snowfields in Hokkaido, Japan, showed the correlations between the retrieved parameters and in situ measurements (R = 0:595 to 0.940).

Original languageEnglish
Pages (from-to)5567-5582
Number of pages16
JournalApplied Optics
Volume48
Issue number29
DOIs
Publication statusPublished - Oct 10 2009
Externally publishedYes

Fingerprint

snow
Radiometers
Snow
radiometers
albedo
retrieval
insolation
Incident solar radiation
sensors
Sensors
in situ measurement
Japan
Lighting
grain size
illumination
Calibration
Impurities
Fluxes
deviation
impurities

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Retrieval of snow physical parameters using a ground-based spectral radiometer. / Kuchiki, Katsuyuki; Aoki, Teruo; Tanikawa, Tomonori; Kodama, Yuji.

In: Applied Optics, Vol. 48, No. 29, 10.10.2009, p. 5567-5582.

Research output: Contribution to journalArticle

Kuchiki, K, Aoki, T, Tanikawa, T & Kodama, Y 2009, 'Retrieval of snow physical parameters using a ground-based spectral radiometer', Applied Optics, vol. 48, no. 29, pp. 5567-5582. https://doi.org/10.1364/AO.48.005567
Kuchiki, Katsuyuki ; Aoki, Teruo ; Tanikawa, Tomonori ; Kodama, Yuji. / Retrieval of snow physical parameters using a ground-based spectral radiometer. In: Applied Optics. 2009 ; Vol. 48, No. 29. pp. 5567-5582.
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