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Product Specification
Product Name:Field Scale Elevation and Hydrology
Product SKU:71309-00
Revision Date:2024-09-04
Product Overview
Description
Field Scale Elevation and Hydrology characterizes the bare soil elevation to provide elevation contours, hydrological flow lines and ponding area for periods prior to crop planting or after crop harvest. This product utilizes precision-aligned RGB and Digital Surface Model orthomosaics derived from high-resolution RGB imagery.Recommended Use Cases
- Area of Interest Variability
- Conservation Practice Detection
- Elevation Mapping
- Hydrology Mapping
- Erosion Control Mapping
Supported Crops
- Off Season
Deliverables Summary
- Mosaic RGB and Elevation (Digital Surface Model) Precision Aligned
- Field Elevation Contour
- Field Surface Hydrology
Requirements
General Requirements
- Requires FieldAgent Enterprise License (61006-##) or Enterprise Analytics Upload/Export Surcharge (71010-09)
- Requires Field Scale Set-Up (71300-00)
- Imagery collected following all "Data Capture Requirements"
- Imagery uploaded to the FieldAgent Field created by Field Scale Set-Up (71300-00)
- Contract Defined - Mosaic Based submitted for "Field Scale Elevation and Hydrology (71309-00)" for uploaded Survey
Data Capture Requirements
Imagery Type
- RGB (Global Shutter)
Ground Sample Distance
- Less than 1.7cm
Timing by Crop
| Crop | Timing/Growth Stage | Plant Size |
|---|---|---|
| Off Season | Before Crop Planting; After Crop Harvest | None |
Flight Specifications
| Sensor | Altitude | Speed | Overlap | Flight Direction | Buffer | Heading | Gimbal Pitch | Terrain Informed |
|---|---|---|---|---|---|---|---|---|
| 65R | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Phantom 4 Pro | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Phantom 4 RTK | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Zenmuse X4S | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Zenmuse X5S | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Zenmuse P1 (35mm) | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
| Mavic 3 Enterprise | 200ft (60m) | 10mph (5m/s) | 85% | Any | 50ft (14m) | Forward | -90° (Nadir) | On |
Environmental Conditions
Lighting
Imagery should be captured between the time of 2 hours after sunrise and 2 hours before sunset. Consistent lighting conditions required for best results, including avoidance of hard shadows cast over the field which cause bright spots and dark spots in the dataset.Wind
Wind conditions should be within the specified limits of the aircraft or system being used to carry the imaging sensor.Precipitation
There should be no active precipitation during imagery capture.Deliverables
Analytics
| Analytic | Imagery | RGB (Global Shutter) |
|---|---|---|
| Mosaic RGB and Elevation (Digital Surface Model) Precision Aligned (82105-01) | ||
| Field Elevation Contour (84007-00) | ||
| Field Surface Hydrology (84008-00) |
Mosaic RGB and Elevation (Digital Surface Model) Precision Aligned (82105-01)
Description
A Visual Red, Green, and Blue (RGB) multi-band mosaic and an elevation digital surface model (DSM) single-band mosaic provided at native resolution and georeferenced.Deliverable List
| Deliverable | Format | Description |
|---|---|---|
| RGB Mosaic (Preliminary)* | GeoTiff | Visual RGB multi-band, native resolution, and non-georeferenced raster |
| Elevation Mosaic (Preliminary)* | GeoTiff | DSM single-band, full-resolution, and non-georeferenced raster |
| RGB Mosaic | GeoTiff | Visual RGB multi-band, native resolution, and georeferenced raster |
| Elevation Mosaic | GeoTiff | DSM single-band, full-resolution, and georeferenced raster |
Field Elevation Contour (84007-00)
Description
Elevation contours at break intervals dependent on field topographic relief, based on the precision aligned DSM.Deliverable List
| Deliverable | Format | Description |
|---|---|---|
| Elevation Contour | Shapefile, GeoJSON, CSV | Contour lines characterizing field elevation |
Field Surface Hydrology (84008-00)
Description
Flow lines and ponding areas identified based on field topography, based on the precision aligned DSM.Deliverable List
| Deliverable | Format | Description |
|---|---|---|
| Flow Lines | Shapefile, GeoJSON, CSV | Flow lines characterizing field surface hydrology |
| Ponding Areas | Shapefile, GeoJSON, CSV | Polygon region characterizing areas where ponding may occur based on field surface hydrology |