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Differential Optical Absorption Spectroscopy data acquired at Sabancaya Volcano (Peru) on 21 May 2016

Dates

Publication Date
Start Date
2016-05-21
End Date
2016-05-21

Citation

Kern, Christoph, Masias, Pablo, and Apaza, Fredy, 2017, Differential Optical Absorption Spectroscopy data acquired at Sabancaya Volcano (Peru) on 21 May 2016: U.S. Geological Survey data release, https://doi.org/10.5066/F7VH5M1B.

Summary

On 21 May 2016, two Differential Optical Absorption Spectroscopy (DOAS) instruments were used to measure the radiance of scattered solar radiation passing through the plume emitted from Sabancaya Volcano, Peru. Spectra were recorded in the ultraviolet (UV: 280 – 425 nm) and visible (Vis: 450 – 780 nm) wavelength ranges at 0.6 and 1.2 nm resolution, respectively. Two distinct experiments were performed using different measurement geometries. In the first experiment, two zenith-looking telescopes were mounted on a vehicle, each coupling scattered sunlight into one of the two DOAS spectrometers. The vehicle traversed beneath Sabancaya’s volcanic plume between 16:43 to 17:39 UTC collecting 2075 UV spectra and an equal number of Vis spectra. [...]

Contacts

Point of Contact :
Christoph Kern
Originator :
Christoph Kern, Pablo Masias, Fredy Apaza
Metadata Contact :
Christoph kern
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Natural Hazards
SDC Data Owner :
Volcano Hazards Program Office

Attached Files

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SabancayaDOASdata.zip
“Data in ZIP File”
57.57 MB
DOAS data acquired at Sabancaya Volcano (Peru) on 21 May 2016_FINAL.xml
“Metadata”
Original FGDC Metadata

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10.97 KB

Purpose

The DOAS measurements were collected to analyze the spectral absorption of SO2 and water vapor in scattered solar radiation passing through the volcanic plume. Together with separate wind speed measurements, these data allow derivation of the SO2 and H2O emission rate from Sabancaya Volcano, Peru. See the associated manuscript in the Journal of Geophysical Research – Solid Earth for more information.

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7VH5M1B

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