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Seasonal fluctuations in a water-reservoir
near Teustepe, Nicaragua, are detectable using change detection between
two RADARSAT-1
images. One scene was obtained during the wet season (displayed in
green), while the other scene was obtained during the dry season
(displayed in red). |
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On October 15-16, Professor John
Gierke and grad student Anna
Colvin represented MTU at the annual PIRE meeting at the National Science Foundation in
Washington DC. The RS4Hazards project is funded by NFS's Partherships
for International Research and Education (PIRE) in the Ofiice of
International Science and Engineering (OISE).
-
Submitted by Anna Colvin
- Poster: RS4Hazards
Project, presented by Dr.
John Gierke
- Poster: "Monitoring Thermal Activity at Santa Ana Volcano, El Salvador", presented by Anna Colvin |
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OVSICORI
has reported
over the last several months that new fumaroles and fissures have
appeared at Turrialba
volcano, in central Costa Rica, possibly signaling future eruptive
activity. ASTER
visible and thermal imagery recently analyzed by
MTU (and shared with OVSICORI) shows no clear sign of this activity,
indicating that the observed surface changes are not yet of sufficient
extent or intensity to be detected in 15-90 m satellite imagery. - Turrialba ASTER |
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In
June and July, Edrick Ramos from University
of Puerto Rico Mayaguez -
at MTU as a summer intern - worked at the Santiaguito volcano
observatory with INSIVUMEH
and Adam Blankenbicker, an MTU Master's
International-Peace Corps student. They improved a system for
video monitoring and analysis of the persistent (1-2 per hour)
explosive eruptions. - Example eruption video (5x speed) - More pictures of Edrick and MTU students |
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In
June and July, MTU
volcanologists visited three volcanoes with Salvadoran colleagues from SNET. The primary
focus was Santa
Ana volcano, which erupted in Oct. 2005. Reports submitted to Smithsonian Global Volcanism Program (in progress): - Santa Ana volcano report - Izalco volcano report - San Miguel volcano report |
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MTU
(Dr. Bill Rose, Anna Colvin, Tricia Nadeau, Matt Patrick) gave a
2-day
workshop on
"Remote sensing of volcanoes" to 20 scientists at Univ. Costa Rica,
and later gave two smaller workshops at Univ. El Salvador
and SNET (El
Salvador's geological agency). - Movie: Univ. Costa Rica workshop (6 Mb) |
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ASTER data
processed by MTU show the extent of 'ninfa', an invasive aquatic plant
choking Lake Olomega, in eastern El Salvador. - NASA Earth Observatory feature |
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This ASTER image
from Jan 10, 2007, shows a red
'hotspot' on the summit of the growing lava dome on Santiaguito
volcano, Guatemala. - Larger-scale ASTER image - Photograph of dome taken a few hours before this ASTER acquisition |
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In Jan. 2007 MTU joined several other US universities for a field campaign to study the persistent explosive activity at Santiaguito volcano. The MTU component included a thermal video camera (FLIR), a UV camera for measuring sulfur dioxide, and conventional video equipment. |
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A group of five MTU Aqua Terra Tech
Enterprise
undergraduate students traveled to |
