partnership to acquire interferometric synthetic aperture radar (ifsar) incorporating digital...
TRANSCRIPT
Partnership to Acquire Interferometric Synthetic Aperture Radar (IFSAR)
Incorporating Digital Terrain Models Into Natural Resource Assessment
Joe BrennanSoil Scientist (GIS Specialist)USDA-NRCSNorth Dakota Soils Staff
Dr. Rebecca PhillipsPlant PhysiologistUSDA-ARSNorthern Great Plains Research Laboratory
Elevation Technology Background
Digital Elevation Models (DEM) or Digital Terrain Models (DTM)
Series of Coordinates
Elevation Values
Surface Representation
Terrain Model
What is a DEM?
Elevation Technology Background
Existing Technology - USGS Digital Elevation Models
6000 feet
30 meter DEMElevation Coordinates – 100 foot Spacing
Data Widely Available
Variable Elevation Accuracy – 5 -15 meter
Available FreeVery Limited Potential forResource Assessment
Elevation Technology Background
Existing Technology - USGS Digital Elevation Models
10 meter DEMElevation Coordinates – 33 foot Spacing
20% Coverage in North Dakota
Variable Elevation Accuracy – 5-7 meter
$10 – 20/sq mi
6000 feet
Improved Potential forResource Assessment
Elevation Technology Background
Emerging Technology - LiDAR
1 meter DEMElevation Coordinates – 2.5 foot Spacing
Walsh County, Fargo, Sheyenne R. Floodplain
High Elevation Accuracy – As low as 6 in.
Price $100-600/sq mi.
6000 feet
Limitless Potential forResource Assessment
Elevation Technology Background
Emerging Technology - IFSAR
5 meter DEMElevation Coordinates – 16 foot Spacing
California, New Mexico, South Dakota, Texas, Wyoming
High Elevation Accuracy – 1 meter (or less)
Price $11.27/sq mi. (NRCS Price)
6000 feet
Most Cost Effective
Remote Wetland Assessment
Source: SPOT, August 2003
0 300150
Meters
Scale= 1:75,000
Vegetation Zones
Marsh
Transition Zone
Open Water
Anthropogenic
< 30 meters Buffer
Low Prairie / Range
Vegetation Zones
Deep Marsh
Shallow Marsh
Open Water
Anthropogenic
Low Prairie / Range
Wet Meadow
For the purpose of assessing the spatial extent of wetland vegetation communities
Missouri Coteau Prairie Glacial Basins
Remote Wetland AssessmentMissouri Coteau Prairie Glacial Basins
Cities
Rivers
Area of Interest
Missouri Coteau (Ducks Unlimited, 2003)
National Wetlands Inventory (1980’s) http://wetlands.fws.gov/mapcodes.htm
Remote Wetland AssessmentMissouri Coteau Prairie Glacial Basins
20022003
2004
Year-to-Year Variability in Water Persistence
Remote Wetland AssessmentMissouri Coteau Prairie Glacial Basins
0%
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
2002 2003 2004Year
Semi-Permanent
Seasonal
Temporary
Total
Landscape Water Coverage
Remote Wetland AssessmentMissouri Coteau Prairie Glacial Basins
Remote Wetland Assessment
Soil-Landscape ModelingMissouri Coteau, MLRA 53B
Existing Soil Survey Information Expert Knowledge
DEM (IFSAR) Derived LayersSSURGO Experienced Soil Scientists
Terrain Analysis
GIS
Soil-Landscape ModelingMLRA 53B Terrain Analysis Project
Repeatable ModelTerrain Criteria 1
Profile Position = Backslope
Terrain Criteria 3
Slope = 3 – 6%
Terrain Criteria 2
Slope Shape = Linear (Across or Down)
Williams Soil Series3 – 6% Slopes
Soil-Landscape ModelingMLRA 53B Terrain Analysis Project
Output – Soil Landscape Relationship
Williams Soil Series3 – 6% Slopes
NRCS Field Office Applications of IFSAR
Engineering Applications
Pipelines
Grassed Waterways
Dugouts/Ponds
NRCS Field Office Applications of IFSAR
WetlandDeterminations (Landscape Position)
Violations (Constructed Drains)
NRCS Field Office Applications of IFSAR
RUSLE2
Slope Gradient, Slope Length
NRCS Field Office Applications of IFSAR
Watershed Management
3 Dimensional Conservation Planning
Proposal to Acquire IFSAR
x $3.92 per square mile ARS Uplift (+35%)ARS Uplift Area = 1297 square miles
ARS Uplift: $5,123
3892 square milesx $11.27 per square mile
Price Subtotal: $43,863
Vendor Quote
NRCS Cost Share: $24,493
Total Cost: $48,986
______