| Autor: |
Marzano, F. S., Lamantea, M., Montopoli, M., Cimini, D. |
| Zdroj: |
2012 IEEE International Geoscience & Remote Sensing Symposium; 1/ 1/2012, p2978-2981, 4p |
| Abstrakt: |
The sub-glacial Plinian explosive eruption of the Grímsvötn volcano on May 2011 was continuously monitored by the Keflavík C-band weather radar, located at a distance of about 260 km from the volcano vent. This work provides an analysis and quantitative interpretation by using these ground-based weather radar data and the Volcanic Ash Radar Retrieval (VARR) physically-based technique. The VARR methodology, herein briefly summarized, was applied to available radar time series to estimate the volume, mass and the plume maximum height, every 5 minutes. Deposited ash at ground was also retrieved from radar data by empirically reconstructing the vertical profile of radar reflectivity and estimating the near-surface ash fallout. The obtained results establish a further step towards the assessment of the VARR algorithm as an effective approach in the field volcanic ash cloud radar remote sensing. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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