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Applications of Thermal Infrared
Remote Sensing
Dr. Mousa Diabat
Alaska Surveying and Mapping Conference Anchorage, AK - February 17, 2017
Quantum Spatial Inc.
Full Service Geospatial Services and Applications
Thermal infrared technology
Riverine Systems (Cold / Hot Springs)
Urban Area Survey
Quick Outline
Hot/Cold Springs
In-Situ Measurements
Centralized Heating systems
What if there is no visible sign?
Stephan Boltzmann Law
• Total energy (Fb ) from
a blackbody is
proportional to the
fourth power of its
temperature (T)
𝐹𝑏 = 𝑘𝑇4
– k is the Stefan-Boltzmann
– T is temperature in degrees
Kelvin.
From: Torgersen et. al. 2001
Wavelength 8-9.2μm
Measured Emitted Radiation
from the surface
Pixel Array 640 X 512
Spatial
Resolution
0.3 to 1.0 meters
Thermal
Sensitivity
<0.1oC
Thermal
Accuracy
±0.5oC
Flight AGL 500-2,000 m
THERMAL INFRARED TECHNOLOGY
Flight Planning
Sensor Installation 1
Sensor Installation 2
Spatial Calibration
Temperature Calibration
Susitna River 2012
Chuitna River 2016
Sampling and Statistics
Longitudinal Temperature Profile
Cooling Reaches
Spillway Plume
Wide Area – Urban
Urban – RGB
RGB + Utilities Lines
TIR
TIR + Utilities Lines
Customized Color Ramps
Wide Area – Geothermal
TIR remote sensing contributions:
• Locate and quantify sources of cold/hot water in the floodplain.
• Identify drivers for changes in stream temperature gradient.
• Locate and quantify thermal pollution sources.
• Analyze energy efficiencies across wide urban area.
• Locate source of geothermal wells and potential underground hazards.
• Detect change in spatial and temporal domains.
Data Integration
• Thermal TMDL (wastewater/effluent)
• Pipeline/Canal leakage
• Heating/coolin Systems
Uses of TIR Data
