Spectrum

Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K) from within a fumarolic vent(Solfatara Crater, Italy)

Title
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K) from within a fumarolic vent(Solfatara Crater, Italy)
DOI
10.26302/SSHADE/EXPERIMENT_JF_20220531_001
Data reference
Flahaut, Jessica; Bishop, Janice (2015): Visible near infrared spectra of rocks from the Solfatara crater, Phlegrean fields, Italy. SSHADE/Mirabelle (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_JF_20220531_001
Publications
Experiment type
field measurement
Type
normalized reflectance
Intensity unit
no unit
Instrument
ASD Fieldspec4 – biconical reflection Visible to near-infrared
Standard medium
unknown
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.415 - 1.0 0.0014 0.003 0.0005
#2 1.001 - 2.5 0.0011 0.01 0.0005
Comments
Measurements were made between 0.35 and 2.5 microns
Observation geometry
bidirectional
Observation mode
fixed angles
Resolution illumination
0.5°
Resolution observation
25.0°
Observation mode
single spot
Experiment
Visible near infrared spectra of rocks from the Solfatara crater, Phlegrean fields, Italy
Date begin
2015-09-27
Release date
2022-07-28 15:00:45 UTC+0000
Version (Date)
#1 (2022-07-28 15:00:45 UTC+0000, Updated: 2022-07-28 15:00:45 UTC+0000)
History
Date Mode Version Status Comments
2022-06-02 11:39:15 UTC+0000 first import #1 valid version
Analysis
The spectrum has been calibrated using a white reference (spectralon-99) in the same geometry and conditions.
Quality flag
4
Validator(s)