Research
Research
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Our research group uses remote sensing techniques, machine learning, statistical methods, laboratory spectroscopy and thermal modeling to investigate planetary surface processes. Presently our research activities can be divided into three broad themes: 1) spacecraft data analysis, presently with a focus on Mars and asteroids, 2) laboratory and remote/field studies of planetary analog surfaces/materials, and 3) solid earth remote sensing with environmental, hazards, and security applications.
Characterizing Planetary Surfaces Using Spacecraft Data
Characterizing Planetary Surfaces Using Spacecraft Data
Example topics of interest include:
The early climate history of Mars
Regolith development and evolution
Mechanisms & roles of resurfacing processes on early Mars
Martian crustal stratigraphy and evolution
Mars landing site characterization
Physical and mineralogical characteristics of lunar and asteroid surfaces
Laboratory and Field Studies
Laboratory and Field Studies
To enhance interpretation of remotely acquired spectral and temperature measurements from planetary surfaces, we are characterizing the spectral and thermophysical properties of rocks and minerals of interest in the laboratory and conducting combined satellite-based/field-based studies of planetary analog terrains.
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Example recent/ongoing projects include:
Formation, stability and spectral properties of amorphous salts
Basalt/glass alteration processes (acid weathering, hydrothermal)
Field-based spectroscopic measurements in planetary analog terrains
Development of quantitative methods for interpreting mineralogy from spectral measurements
Thermal conductivity measurements of planetary analog materials
Solid Earth Remote Sensing
Topics of interest include:
Detection of uranium mining activities
Characterization of submarine groundwater discharge flux
Precursor surface changes to volcanic eruptions
Dust emissions from desert surfaces
Example (right):We used aerial thermal imaging to locate potential regions of submarine groundwater discharge (SGD) into Long Island's near-shore environments. SGD brings nitrates and other nutrients into harbor waters, which feeds harmful algal blooms and disrupts natural ecosystems. In the image to the right, warm plumes represent groundwater discharging into cooler harbor waters. Aided by this imagery, Stony Brook collaborators and graduate students can better target locations to sample the chemistry and flux of groundwater discharge.
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