TCarta's Trident Tools ArcGIS Pro geoprocessing toolbox, developed under TCarta’s National Science Foundation SBIR Phase-II grant, provides a user-friendly suite of tools for the production of satellite-derived bathymetry and imagery-derived bathymetry within the Esri ArcGIS Pro environment. It is flexible with inputs, accepting any multispectral imagery and any in-situ point depth data to derive per-pixel depth measurements.
Both the Multispectral Bathymetry Tool - Ratio & Multispectral Bathymetry Tool - Random Forest will accept spatially-referenced raster bands from any multispectral sensor. (Minimum 3-band (RGB), 4-band (RGBN), or above preferred). Common sensors include Sentinel-2, Landsat 8, WorldView-2 & 3, GeoEye-1, and SkySat. The Multispectral Bathymetry Tool - Ratio & Multispectral Bathymetry Tool - Random Forest will accept any level of processed imagery. However, when using the Multispectral Bathymetry Tool - Ratio, it is possible that atmospherically-corrected imagery may produce atypical results, particularly when an exponential regression is specified. Additionally, it is important to note that Input band rasters must have the same spatial reference, extent, cell size, and number of rows & columns.
Trident Tools geoprocessing toolbox
License authentication keycode provided by TCarta.
The Trident Tools geoprocessing toolbox is licensed by a TCarta authentication API, separate from Esri licensing. Multiple ArcGIS Online user logins can access the toolbox on a single machine. Licenses are associated with a TCarta user account and an authentication key-code, and currently are tied to the specific machine on which it is installed. Migration of a license to another machine necessitates contacting TCarta support.
In-situ Sample Tool
The in-situ Sample Tool allocates a percentage of input data points to use with the Multispectral Bathymetry Tools for algorithm calibration and validation with the QAQC Statistics Tool. It will randomly split your data up into two datasets: Calibration and Validation that will be used in the other tools. You can determine the percent of data that goes into each dataset.
Multispectral Bathymetry Tool - Band Ratio
TCarta’s Multispectral Bathymetry Tool- Ratio utilizes imagery and in-situ bathymetric point data to derive per-pixel depth measurements using a band-ratio algorithm. This tool will create your bathymetry surface and has the option to output statistics of your produced surface in the form of a points shapefile and a standalone table.
Multispectral Bathymetry Tool - Random Forest
TCarta’s Multispectral Bathymetry Tool- RF utilizes imagery and in-situ bathymetric point data to derive per-pixel depth measurements using random-forest algorithm. This tool will create your bathymetry surface and has the option to output statistics of your produced surface in the form of a points shapefile and a standalone table.
QAQC Statistics Tool
TCarta’s QAQC Statistics Tool utilizes in-situ bathymetric point data to evaluate the statistical accuracy of a produced or acquired bathymetric depth surface. This tool will create statistics based on the Validation points produced by the in-situ sample tool or other available in-situ data. It will output QAQC statistics as a point shapefile and QAQC_QAtable, and is the same process as the statistical outputs from the MBT Tools.
The BAG Creator tool enables users to compile their produced bathymetry surfaces into a fully compliant Bathymetric Attributed Grid (BAG) file format with a 2 band raster (elevation and uncertainty) and metadata.
Multispectral Bathymetry Tools Processing Measures
An optional Mask Output parameter. If checked, the tool will attempt to remove clouds, land, and boats/wakes from the output SDB surface. This option requires users input a near-infrared (NIR) band, and select automatic or custom mask thresholding.
Optional tide correction via the Tide Points parameter. The input to this parameter is a point feature class or shapefile which contains point data representing the location of one or more tide stations or tide gauges, and a numerical attribute specifying the water level at the time of image capture, relative to the datum of the input in-situ data. This enables more accurate correlation of depth to spectral reflectance. The output SDB surface will be referenced to the in-situ datum.
Optional smoothing of the output SDB surface, using a 3x3 median filter.
Inversion of output SDB depth cardinality (positive-down versus negative-down) The default behavior of the tool is to produce a surface with the same depth cardinality as the input in-situ data.
ICESat-2 Bathymetry ground truth data
- Facility Management
- Risk Management
- Site Analysis and Territory Planning
- Situational Awareness
- Architecture, Engineering, and Construction
- Petroleum and Pipeline
- Public Safety
OS: Windows 7 64-bit
CPU: Intel Core Duo 2.0GHz or AMD Athlon 64 X2 3600 (or comparable)
Windows 7 64-bit or above
ArcPro 2.4 or above.
Oct 2, 2021