CN-770000-20168-TA2.pdf

NV5 Geospatial – Florida Panhandle Derelict Vessel Mapping (REV2) – November 11, 2022 1

Quantum Spatial, d/b/a NV5 Geospatial (NV5G) appreciates the opportunity to present to the Florida Fish and Wildlife Conservation Commission’s (FWC’s) Marine Debris Program a brief scope of work and associated price for acquiring and processing multispectral (4-band) orthoimagery for a portion of the Florida Panhandle coast and identifying and mapping derelict vessels within the area of interest (AOI). Our understanding is that these data and information will be used to document marine debris in the region and to inform marine debris cleanup/recovery efforts, under the State’s Environmental Sensitivity Index (ESI) Maps & Services Program. The following provides a brief synopsis of our services, specifications, and associated costs related to this project.

Project Area of Interest The area of interest (AOI) for this price proposal covers the coastline of the Florida panhandle at two different image resolutions (ground sample distance - GSD) – i.e., 3” GSD imagery will be collected for the five bays along the panhandle (Pensacola, Choctawhatchee, Apalachicola, St. Andrews, and St. Joe), and 6” GSD imagery for the remaining coastline area (Figure 1).

Figure 1. Area of interest (AOI) for orthoimagery acquisition and derelict vessel identification/mapping along the Florida panhandle.

Prepared for: Jennifer McGee FWC Marine Debris Program Administrator

850-727-3043 Jennifer.Mcgee@MyFWC.com

Photo credit: marinedebris.noaa.gov

Florida Panhandle Derelict Vessel Imagery & Mapping Scope and Cost Proposal (Revision 2)

NV5 Geospatial – Florida Panhandle Derelict Vessel Mapping (REV2) – November 11, 2022 2

Acquisition & Post Processing Imagery will be collected with a large-format digital camera in 4 bands (NIR, R, G, B) with ≥ 60% along-track overlap and ≥ 30% sidelap. Flight parameters will be adjusted to collect imagery with a native pixel size (ground sample distance) of 3 inches for the bays illustrated in the map above, and 6 inches for those areas outside of the bay. Expected accuracy of the imagery will be 4-8 pixels. Imagery will be collected during lower sun angles to minimize sun glint on water bodies under clear conditions with minimal cloud cover.

Minimal image shadowing is anticipated for this region and time of year.

NV5 Geospatial will deploy airborne GPS (ABGPS) and inertial measurement unit (IMU) technologies during aerial acquisitions to enable direct geo-referencing of the acquired imagery. Direct geo-referencing is a powerful technique that combines the strengths of ABGPS for aerial sensor positioning with an IMU for determining the angular rotation of the aircraft. NV5 Geospatial will use Continuously Operation Reference Stations (CORS) to correct the ABGPS data differently. If CORS coverage is inadequate, we will establish and operate ground base stations during the acquisition phase of the project.

NV5 Geospatial utilizes a combination of direct geopositioning from GNSS/IMU navigation systems and block bundle adjustment to arrive at an aerial triangulation (AT) solution (further positional refinement during AT will include the use of photo identifiable points, where possible). Kinematic GNSS surveying techniques, including differential GPS post-processing (DGPS) and/or precise point positioning (PPP) processing techniques, are used to derive coordinates representing the position of the sensor. Concerning PPP, the GNSS observations are reduced to final position coordinates utilizing TerraPOS PPP software, operating in the software’s kinematic processing modality. The processed GNSS positions are combined with the IMU observations. Precise timing data collected during image acquisition allows interpolation of the sensor exterior orientation (EO) at each scan line exposure. The final trajectory and exposure timing data provide the direct geopositioning data in NV5 Geospatial’s AT workflow.

The collected digital images go through multiple processing steps to create final orthoimage products.

Camera calibration parameters are applied to the imagery to remove lens distortion effects. Radiometric adjustments compensate for or remove hotspots and atmospheric effects and provide project-level color balancing. The final pre-processing step involves pan-sharpening the near-infrared data to yield co-registered TIFFs. Adjusted images will be orthorectified using a lidar-derived bare earth DEM (if available) to remove displacement effects from topographic relief inherent in the imagery. The orthoimagery with be mosaicked, blending individual seams and applying project-wide color balancing.

The deliverables associated with this portion of the work will include orthorectified 4-band imagery (RGB + NIR) and a tiled image mosaic covering the area of interest (AOI). Please see the Deliverables section below for a complete list of project deliverables.

Derelict Vessel Mapping NV5 Geospatial understands the intent of FWC’s Marine Debris Program and the objective of this mapping effort to identify and map derelict and remnant vessels along the coastline of the Florida panhandle (i.e., the immediate shore zone to no more than 1 mile offshore). For the purpose of this project, and based on State of Florida Statute 823.11, derelict vessels are defined as wrecked (sunken or sinking; or aground without the ability to extricate itself), junked (discarded or its components have been substantially stripped, degraded or destroyed), or substantially dismantled (missing, compromised, or broken systems or exterior hull). NV5G will identify and map derelict vessels that are approximately 10 long or longer.

Due to the highly varied spectral signature of derelict vessels, to identify and map the vessels, our team will

NV5 Geospatial – Florida Panhandle Derelict Vessel Mapping (REV2) – November 11, 2022 3 rely primarily on visual interpretation of the aerial imagery. Our image interpreters have decades of experience interpreting aerial imagery for various features and objects of interest, including marine deris mapping, marine obstructions to navigation, coastal zone features, shoreline classification, seagrass and benthic habitat, forest and vegetation cover, land use, and aerial obstructions to commercial aircraft.

Workflow In coordination with FWC, NV5 Geospatial will first develop a basic geospatial database schema to consistently capture information about each large marine debris or cluster of debris to be used and maintained in an FWC organization GIS (e.g., ArcGIS). The image interpretation team will develop a primary data entry workflow to support a consistent population of data. Once the physical database is in place, the team will use the following general workflow to identify each derelict vessel object (longer than 10 feet):

1. Individual team members will review the image mosaic for the project at a consistent zoom factor of approximately 1:600 scale (i.e., 1:1 zoom, where one image pixel is represented by one screen pixel) to maintain consistency with a finer-scale evaluation of any uncertain target identification.

2. Point locations (x, y coordinates) will be collected/plotted for each debris object and logged into the geospatial database (i.e., Esri ArcGIS geodatabase)

3. For each point location, the following attributes (minimum) will be collected:

• Unique identification number

• Object type (to the degree possible)

• Object description (when additive to type)

• Latitude and longitude of target

• General size of the object (i.e., XY area of identifiable target)

The horizontal accuracy of discrete derelict vessel point locations is expected to be between 1 and 3 meters, and no specific vertical accuracy is expected for these point locations.

The deliverable associated with this portion of the work will include an Esri geodatabase of derelict vessel point locations for the area of interest (AOI). Please see the Deliverables section below for a complete list of project deliverables.

Deliverables Digital Orthoimages (4-Band)

• Tiled Imagery Mosaic, 3 and 6-inch GSD, 8-bit GeoTIFF format

• Aerial Survey Boundaries, shapefile format

• Orthoimage Index, shapefile format

GIS Components

• Database Schema, Esri Geodatabase, Visio Diagram, or Excel Spreadsheet format

Figure 2. Example derelict vessels (photo credits: marinedebris.noaa.gov, response.restoration.noaa.gov, floridatoday.com)

NV5 Geospatial – Florida Panhandle Derelict Vessel Mapping (REV2) – November 11, 2022 4

• Marine Debris Database (points) with associated attribution, Esri Geodatabase format

Reporting

• Methods and Results, *.pdf format

• FGDC-compliant Metadata

Coordinate System

• Standard UTM or State Plane and corresponding horizontal datum as appropriate to match with prior data collected in the region, to be determined at time of final contracting.

Timeline & Delivery Data acquisition is anticipated during late fall/winter of 2022/2023, depending on optimal weather conditions. NV5 Geospatial will work with FWC to coordinate data collection during optimal conditions for success. The imagery and marine debris database will be delivered within 56 days of acquisition.

Pricing Firm fixed pricing (FFP) for the project is provided below for the study areas portrayed in Figure 1, assuming the deliverables and timeline outlined above. Please see the associated price proposal spreadsheet for breakdown of labor and other direct costs (ODCs).

Florida Panhandle Derelict Vessel Imagery & Mapping Price

4-band, 3 and 6-inch GSD image acquisition; image processing; derelict vessel identification and mapping $ 299,840.32

Invoicing Schedule The proposed invoicing schedule is defined below.

Invoice Due Date (NLT) Description % of Total

1 1/14/2023 Completed Image Acquisition 40 %

2 3/11/2023 Completed Image Processing & Derelict Vessel Mapping 60 %

NV5 Geospatial – Florida Panhandle Derelict Vessel Mapping (REV2) – November 11, 2022 5

Point of Contact I will represent NV5 Geospatial during the performance of services provided under this agreement. If Florida FWC approves of this quote, we look forward to establishing a task assignment under our active Environmental Sensitivity Index (ESI) Maps & Services for Florida contract. If you have any questions or concerns, please do not hesitate to contact me directly. Thank you for the opportunity to provide this quote and information.

Steve Raber, Senior Program Manager steven.raber@nv5.com

Direct Line: 719-375-1452 Mobile: 719-646-9141

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