Summary
Identifies drop zone locations suitable for parachuting equipment or personnel within a designated area of interest given slope and vegetation data.
Usage
This is a preliminary assessment tool that only considers the input data. Actual description and survey of the final drop zone (DZ) requires further analysis and specific measurements.
Uses a bounding area, slope, and vegetation as input.
Suitable slope for troop drops is less than 10 percent. Less than 30 percent slope is suitable for supply drops. More than 30 percent slope is excluded.
Results are either good (less than 10 percent) or fair (between 10 and 30 percent).
Areas where no vegetation coverage is provided will automatically be excluded.
Suitable vegetation includes other land uses as well. The list of possible areas (preceded by their f_code) are as follows:
- BH135: Rice Field
- DA020: Barren Ground
- EA010: Cropland
- EB010: Grassland
- EB015: Grass/Scrub/Brush
- EB020: Scrub/Brush/Bush
- EC040: US-Cleared Way/Cut Line/Firebreak, UK-Cleared Way/Firebreak
- EE020: Land Devoid of Vegetation
- BH150: Salt Flat
- BJ030: Glacier
- BJ100: Snow/Ice Field
- BJ110: Tundra
- GB055: Runway
- GB075: Taxiway
- AK160: Stadium
- AK120: Park
- AK040: Sports Ground
- AK100: Golf Course
- AK101: Golf Driving Range
- AK090: Fairground
Syntax
arcpy.intelligence.DropZones(in_slope_raster, in_vegetation_features, clip_features, out_feature_class)
| Parameter | Explanation | Data Type |
in_slope_raster | The slope raster percentage used to determine the slope component of DZ suitability. | Raster Layer |
in_vegetation_features | The features that define the combined vegetation and land cover types. These features are used to find areas with suitable vegetation coverage for DZs. | Feature Layer |
clip_features | The area within which to find suitable DZs. | Feature Set |
out_feature_class | The output feature class showing terrain suitability for DZs. | Feature Class |
Code sample
The following Python window script demonstrates how to use the DropZones function in immediate mode.
import arcpy
inputAOI = "C:/Data/data.gdb/AOI"
inputSlope = "C:/Data/data.gdb/Slope"
inputVeg = "C:/Data/data.gdb/CombinedVegetation"
outputZones = "C:/Data/data.gdb/DropZonesOut"
arcpy.DropZones_intelligence(inputSlope, inputVeg, inputAOI, outputZones)Environments
Licensing information
- Basic: Requires Spatial Analyst
- Standard: Requires Spatial Analyst
- Advanced: Requires Spatial Analyst