Guatemala 2007Plan: a week long deployment of seismic, acoustic, infrared, Doppler radar, digital video, and UV imaging instruments at Santiaguito Volcano, Guatemala.

Goal: these correlated datasets will provide insight into conduit dynamics

Improving the camera

• Improvements to the retrieval of SO2

– Bandpass filters– Calibration cell response curve

– Response to background illumination

Absorbance Trends by Time of Day

0.000

0.020

0.040

0.060

0.080

0.100

0.120

6:00:00 7:12:00 8:24:00 9:36:00 10:48:00 12:00:00

Time of Day

Absorb

ance

270115

Improving the image processing

• Automation of processing:– Image streaming– Cropping– Background

flattening– Average background

calculations– Absorbance

calculations– Concentration

scaling

– SO2 color mapping