Next Article in Journal
Impact of Radiance Data Assimilation on the Prediction of Heavy Rainfall in RMAPS: A Case Study
Next Article in Special Issue
Radar Path Delay Effects in Volcanic Gas Plumes: The Case of Láscar Volcano, Northern Chile
Previous Article in Journal
Remote Sensing Derived Built-Up Area and Population Density to Quantify Global Exposure to Five Natural Hazards over Time
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle

Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR’s Experimental TET-1 Satellite

1
German Remote Sensing Data Center, German Aerospace Center (DLR), 82234 Oberpfaffenhofen, Germany
2
Remote Sensing Technology Institute, German Aerospace Center DLR, 82234 Oberpfaffenhofen, Germany
3
Institute of Optical Sensor Systems, German Aerospace Center DLR, 12489 Berlin, Germany
*
Author to whom correspondence should be addressed.
Remote Sens. 2018, 10(9), 1379; https://doi.org/10.3390/rs10091379
Received: 17 July 2018 / Revised: 16 August 2018 / Accepted: 28 August 2018 / Published: 30 August 2018
(This article belongs to the Special Issue Remote Sensing of Volcanic Processes and Risk)
  |  
PDF [6428 KB, uploaded 30 August 2018]
  |  

Abstract

Villarrica Volcano is one of the most active volcanoes in the South Andes Volcanic Zone. This article presents the results of a monitoring of the time before and after the 3 March 2015 eruption by analyzing nine satellite images acquired by the Technology Experiment Carrier-1 (TET-1), a small experimental German Aerospace Center (DLR) satellite. An atmospheric correction of the TET-1 data is presented, based on the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Database (GDEM) and Moderate Resolution Imaging Spectroradiometer (MODIS) water vapor data with the shortest temporal baseline to the TET-1 acquisitions. Next, the temperature, area coverage, and radiant power of the detected thermal hotspots were derived at subpixel level and compared with observations derived from MODIS and Visible Infrared Imaging Radiometer Suite (VIIRS) data. Thermal anomalies were detected nine days before the eruption. After the decrease of the radiant power following the 3 March 2015 eruption, a stronger increase of the radiant power was observed on 25 April 2015. In addition, we show that the eruption-related ash coverage of the glacier at Villarrica Volcano could clearly be detected in TET-1 imagery. Landsat-8 imagery was analyzed for comparison. The information extracted from the TET-1 thermal data is thought be used in future to support and complement ground-based observations of active volcanoes. View Full-Text
Keywords: volcanic thermal anomalies; change detection; Villarrica Volcano; small satellites; FireBIRD; TET-1 volcanic thermal anomalies; change detection; Villarrica Volcano; small satellites; FireBIRD; TET-1
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Plank, S.; Nolde, M.; Richter, R.; Fischer, C.; Martinis, S.; Riedlinger, T.; Schoepfer, E.; Klein, D. Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR’s Experimental TET-1 Satellite. Remote Sens. 2018, 10, 1379.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top