Methods and analysis
dNBR for Fire Change Assessment: Baselines, Signs and Timing
dNBR is commonly calculated as pre-fire NBR minus post-fire NBR.
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Methods and analysis
Thermal Comparisons for Urban Districts: Sentinel-3 SLSTR
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Methods and analysis
NBR and Burned-Area Screening: Separate Spectral Change from Severity
The normalized burn ratio contrasts near-infrared with a longer-wave shortwave infrared band.
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Methods and analysis
MNDWI in Built Landscapes: Water Mapping and Mixed Edges
MNDWI commonly replaces near-infrared with a shortwave infrared band in the normalized green-water contrast.
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Methods and analysis
NDWI for Open Water: Choosing the Correct Index Definition
The name NDWI is used for different published indices.
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Methods and analysis
NDMI for Canopy Moisture Screening Without Overstating Water Stress
NDMI commonly uses the normalized contrast between near-infrared and shortwave infrared reflectance.
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Methods and analysis
MSAVI for Open Canopies: Testing an Adaptive Soil Adjustment
The modified soil-adjusted vegetation index reduces the need to select a fixed soil parameter.
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Methods and analysis
SAVI for Sparse Vegetation: Soil Background and the L Parameter
SAVI modifies the normalized vegetation contrast by adding a soil adjustment term.
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Methods and analysis
EVI for Dense Vegetation: Why Scaling and the Blue Band Matter
The enhanced vegetation index uses near-infrared, red and blue reflectance with background and atmospheric adjustment terms.
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Methods and analysis
NDVI for Satellite Vegetation Monitoring: Formula, Bands and Limits
NDVI contrasts strong near-infrared scattering with red absorption in green vegetation.
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Applications
Ozone and Ultraviolet Satellite Products for Regional Context
How do quality-screened ozone or ultraviolet products vary across a defined region and period? Learn how to select satellite observations, test the analysis, validate uncertainty and deliver useful GIS evidence with iT Sensing.
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Applications
Urban Emission Trend Context with Satellite Atmospheric Records
Do consistent atmospheric records support a persistent regional change requiring explanation? Learn how to select satellite observations, test the analysis, validate uncertainty and deliver useful GIS evidence with iT Sensing.
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Applications
Dust Storm Observation and Downwind Exposure Context
Which regions overlap supported dust observations during the relevant interval? Learn how to select satellite observations, test the analysis, validate uncertainty and deliver useful GIS evidence with iT Sensing.
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