Remote Sensing applications
Intro to Remote Sensing
Agriculture
Analysis include – climate, weather; the quality, quantity, and location of arable land; population dynamics, energy production, and environmental quality issues. Most common
crop-type identification Crop condition assessments crop yield forecasting historic planting patterns Soil vitality
Agriculture
Crop-type identification is based on:
Spectral characteristics Image texture Knowledge of crop development over time Health and vigor of the crop Detection of drought, pests, flooding, and disease
Crop conditions
Most Common remote sensing tools are:
Normalized Difference Vegetation Index (NDVI)
Agriculture
Precision farming Water damage
Agriculture
Forestry
The most important forest information obtained from remotely sensed data is:
Detailed forest inventory data Broad area monitoring of forest health Assessment of forest structure in support of sustainable forest management
Forestry
Detailed Forest Inventory
Stand boundaries Update harvest information Polygon decomposition
Analyzes pixels corresponding to polygon stand boundary Monitor & summarize changes within boundaries High spatial-resolution imagery required Characterisics such as density & volume can be calc’d
Individual tree-crown recognition
Forestry
Forestry
Forest Health
Insect disturbance
Damage affects morphological/physiological chars Defoliation Real-time
Fire
Firefighter GPS AVHRR, SPOT & MODIS – hot spot information Change detection Prediction for future hot spots
Post-processing
Other natural disasters
Forestry
MODIS-detected real-time fire hot-spot image
Forestry
Landscape ecology, habitat & biodiversity
Spatial Patterns
Canopy Identifying species living areas Influence of fertilization & draught
Habitat
Ecological processes
Grizzly Bear Habitat
Geology
Geological Structures
Exposed structures
Fault lines Identifying rocks
Response to weathering & erosion Texture, pattern & tone Hyperspectral
Obscured structures
Indirect effects Subsurface instrumentation
Detection of hydrocarbons
Oil & Gas - $$$$
Geology
Geology
Climate & Weather
Atmospheric
Temperature Wind Pressure Precipitable water Natural Disaster Monitoring & Prediction
Snow cover Urban heat effect
Land
Climate & weather
Archaeology
Site Discovery
Faint visible lines Slight variations in topography Crop & soil marks New technology can penetrate sand (SIR-C)
To understand environment in historic times Identify possible historical natural disasters
Environmental Analysis
Archaeology
This overview image shows a map of the archaeological findings in the region around Carnuntum, superimposed on a satellite image map of the area (e.g 1,2amphitheatres, 10adminstrative quarter, 12camp of the legion, 13settlement).
Archaeology
Archaeology
Archaeology
Military & Intelligence
Where Remote Sensing got started Applications
Battlefield awareness
Status of both sides Targeting
Inventory of other militaries Threat assessment Planning Surveillance aircraft
Tools
High altitude New UAV-type
Satellites
Military & Intelligence
Military & Intelligence
Urban Infrastructure
Popular area for research Urban infrastructure uses
Planimetric base mapping
Airborne & satellite imagery Used for infrastructure inventory & road centerline mapping
Topography Land cover Development monitoring Emergency Response/Disaster Management
Urban Infrastructure
Urban Infrastructure