A04_SOW.pdf

National Park Service

Performance Work Statement for the

Klondike Gold Rush National Historical Park

Orthoimagery Project (FY2023)

July 6, 2023

TABLE OF CONTENTS

GENERAL DESCRIPTION OF PROJECT

INTRODUCTION

OBJECTIVE

SCOPE

TYPE OF CONTRACT CONTEMPLATED

PERIOD OF PERFORMANCE

PLACE OF PERFORMANCE

APPLICABLE DOCUMENTS

REQUIREMENTS / TASKS

GENERAL REQUIREMENTS

ORTHOIMAGERY REQUIREMENTS

TASKS

DELIVERABLES / PERFORMANCE

MEETINGS

REQUIRED TRAVEL AND OTHER DIRECT COSTS (ODCS)

Requirement Specifications for the Klondike Gold Rush National Historical Park

Orthoimagery Project

GENERAL DESCRIPTION OF PROJECT

INTRODUCTION

Klondike Gold Rush National Historical Park (KLGO) requires contemporary imagery to plan and respond to rapid river channel changes and flooding. In the past 3 years, the park has experienced destruction of irreplaceable archeological sites and essential park infrastructure. Accurate imagery is vital for repair and restoration of park resources. This project intends to procure the collection, processing, and related services and materials for new orthometrically corrected aerial imagery (orthoimagery) covering three river drainages near the KLGO; the Nourse River, West Creek and Taiya River. New orthoimagery will assist upcoming land use planning and environmental compliance efforts within KLGO and surrounding areas of Skagway, Alaska, and it will help facilitate cultural resource detection, and assist infrastructure development and restoration. Acquisition of these geospatial datasets will also increase the understanding of geologic and hydrologic dynamics, allow for glacier monitoring and geohazards/landslide risks, and in general provide a geospatial foundation for natural resources and cultural resources management decisions affecting the park.

OBJECTIVE

Four-band (R, G, B, NIR), 15 cm resolution or better orthoimagery are being sought for this project.

Orthoimagery will be collected for the entire funded project area of interest (AOI) which is approximately 45 square miles in size, and comprised of the Nourse River, West Creek and Taiya River drainages near Skagway, Alaska. Attachment A identifies these project areas. Geographic Information Systems (GIS) shape files are also provided in Attachment B of this Performance Work Statement.

SCOPE

The general scope of the contract is to procure current and precise USGS compliant orthorectified digital aerial photography for natural resource inventory and monitoring analysis, and restoration, and park compliance and planning efforts. The Contractor is responsible for furnishing direct digital imagery data collection, data processing services, and supplies in accordance with requirements, specifications, terms, and conditions specified herein.

TYPE OF CONTRACT CONTEMPLATED

The government anticipates awarding a fixed firm price contract.

PERIOD OF PERFORMANCE

The period of performance for this delivery order covers the period required for planning and execution of the requirements of this PWS, as well as time for Government inspection of the deliverables and contractor delivery of remakes, if needed. The approximate period of performance is: July 17, 2023 through December 31, 2023.

If data acquisition cannot be completed during a single season due to unacceptable capture conditions, it is possible that the data could be acquired during the next suitable collection window, which may or may not be in the same calendar year. The Government reserves the right to extend this POP by written notice to the contractor at any time prior to the end of the period, at no increase in price.

PLACE OF PERFORMANCE

All work shall be performed at either the contractor’s facility(ies) or the project site. The project site will be an area of interest (AOI) of approximately 45 square miles in size, located near the community of Skagway, AK and includes river drainages of the Nourse River, West Creek and Taiya River. This AOI also includes the KLGO Chilkoot Trail and park unit. (Attachment A).

APPLICABLE DOCUMENTS

Digital Orthoimagery Base Specifications:

Unless otherwise stated or approved in advance of delivery all specifications and deliverables for Orthoimage data will meet or exceed current U.S. Geological Survey’s National Geospatial Program Digital Orthoimagery Base Specification located online at:

https://pubs.er.usgs.gov/publication/tm11B5

FGDC Metadata Specifications:

Metadata files shall be created in accordance with the Federal Geographic Data Committee (FGDC), FGDC-STD-001-1998 specification:

https://www.fgdc.gov/standards/projects/metadata/base-metadata/v2_0698.pdf

REQUIREMENTS / TASKS

GENERAL REQUIREMENTS

Permits and Responsibilities:

The Contractor shall, without additional expense to the Government, will be responsible for obtaining any necessary licenses and permits, and for complying with any Federal, State, and municipal laws, codes, and regulations applicable to the performance of the work. The Contractor shall also be responsible for all damages to persons or property that occurs as a result of the Contractor’s fault or negligence. The Contractor shall be responsible for all materials delivered and work performed until completion and acceptance of the entire work, except for any completed unit of work which may have been accepted under the contract.

Aircraft Regulations and Certifications:

All aircraft used in the performance of the work under this contract shall be maintained and operated in accordance with all regulations required by the U.S. Department of Transportation, Federal Aviation Administration (FAA). Aircraft operated in the acquisition of aerial photography under this contract shall be FAA certified to the highest flying altitude specified in the solicitation.

Partial Coverage:

If the Contractor obtains only partial coverage for any project item during the season, all partial imagery and contract deliverables shall be processed and delivered according to the requirements specified for completed products. Interim products may be required to satisfy partial delivery. The requirement for processing partial coverage may be waived only by the Contracting Officer.

https://pubs.er.usgs.gov/publication/tm11B5 https://www.fgdc.gov/standards/projects/metadata/base-metadata/v2_0698.pdf

Ownership of Materials:

The Government shall receive copyright and ownership to all data delivered under this contract upon formal acceptance. The Contractor may maintain copyright and ownership of all original or derived works which are not required submittals under this contract. No public distribution of the original or derived works shall be made prior to acceptance by the Government. The Contractor shall treat all deliverables under the contract as the property of the U.S. Government for which the Government Agency shall have unlimited rights to use, dispose of, or disclose such data contained therein as it determines to be in the public interest. The Government also maintains the rights to derive additional products from the data delivered under this contract for Government and public use.

File Naming:

All tile names shall include a project indicator and date of data collection in addition to US National Grid naming convention. An explanation of file naming convention must be included in the FGDC metadata.

ORTHOIMAGERY REQUIREMENTS

Data Acquisition Conditions:

Unless otherwise approved in advance of delivery imagery shall be acquired during the summer season (generally between June 1 and September 30), when skies are clear, free from smoke, clouds, cloud shadows, excessive haze, and well-defined images can be resolved. The Contractor is also responsible for flight planning the project area to ensure acquisition of precision, high quality orthorectified imagery meeting the requirements of this project.

Platform/Camera:

The direct digital imagery acquisition requirements will be for the collection of visible (Red, Green, Blue) and color near infrared (NIR) imagery captured simultaneously. The digital sensor system shall be a tested, stable, geometrically calibrated system with appropriate documentation.

Spatial Resolution:

The Contractor shall obtain precise vertical digital imagery in such a way that all imagery shall be acquired at 15 cm ground sample distance (GSD) or higher resolution.

Radiometric Resolution:

Radiometric resolution shall be collected at a minimum of 12-bits per band.

Minimum Sun Angle:

All imagery shall be collected during the portion of the day when the minimum sun angle exceeds 40 degrees. Where practical, a higher sun angle should be utilized over steep canyon areas to minimize shadow and enable viewing of ground features. When environmental conditions do not allow for a minimum sun angle of 40 degrees, the minimum sun angle shall meet or exceed U.S.

Geological Survey's National Geospatial Program Digital Orthoimagery.

Image Quality:

The Contractor shall make necessary radiometric adjustments, including stretching, dodging, color correction, etc., to the acquired imagery in order to match ground conditions at the time of exposure and to ensure the best possible color balance for both natural color and color infrared.

Images shall not contain 0 cell values.

File Format:

Image files are to be georeferenced tagged image files (GeoTIFF) and shall have the following band order: Red (R), Green (G), Blue (B), and Near Infrared (NIR). 1km x 1km tiled GeoTIFF files shall be properly georeferenced so that the image is oriented north up when viewed in GIS software including Esri® ArcGIS and ERDAS Imagine.

File Naming:

All tile names shall include a project indicator and date of data collection in addition to US National Grid naming convention. An explanation of file naming convention must be included in the FGDC metadata.

Horizontal Accuracy:

All well-defined points tested on orthorectified tiles will have a horizontal RMSE of 30 cm or better, and will meet or exceed current U.S. Geological Survey’s National Geospatial Program Digital Orthoimagery Base Specifications.

Horizontal Datum:

Horizontal NAD83 (2011) Epoch 2010.00.

Coordinate System and Projection:

Universal Transverse Mercator UTM Zone 8, horizontal units in Meters and vertical units in Meters.

Metadata:

The Contractor shall create a metadata file for each digital image. Metadata files shall be created in accordance with the Federal Geographic Data Committee (FGDC), FGDC-STD-001-1998 specifications. FGDC compliant metadata shall be provided in text (.txt) and extensible markup language (.xml) format files shall be compatible with Esri® ArcGIS version 10.5 and higher.

TASKS

The Contractor will perform the following tasks in accordance with the requirements, specifications, terms, conditions, clauses, and provisions specified herein.

Task One (1) Provide aerial imagery services and related materials for the acquisition and production of summer time, four-band (R, G, B, NIR), 15 cm resolution orthoimagery for approximately 45 square miles near Skagway, AK as defined in this PWS AOI.

Task Item 1 KLGO Orthoimagery

Approximate Acquisition Period Between July 25, 2023 through September 30, 2023

Resolution 15 cm Ground Sample Distance (GSD)

Coordinate System UTM Zone 8, NAD83 (2011) Epoch 2010, Units meters.

Area of Interest (AOI) 45 Square Miles

DELIVERABLES / PERFORMANCE

All processed data and derived products will be sent directly to NPS for evaluation. NPS will evaluate project deliverables within 60 days of receipt. Substandard deliverables will be returned to the Contractor for correction/rework. The Contractor will remedy all discrepancies identified and return corrected deliverables to NPS within 30 days of notification for subsequent inspection. Upon acceptance of project deliverables, the Contractor will provide a copy of all deliverables to the NPS project Technical POC.

Orthoimagery Deliverables

Digital Orthoimagery Image Tiles (8-bit) 4-Band, 8-bit per band, Radiometrically Corrected, Georeferenced, Uncompressed Digital Orthoimagery Image Tiles. Orthorectified GeoTIFF files shall represent tiles as defined in the project tiling scheme with no chip-overedge. Corner coordinates will be based on the UTM 8N grid.

Digital Orthoimagery Image Tiles (16-bit) 4-Band, 16-bit per band, Radiometrically Corrected, Georeferenced, Uncompressed Digital Orthoimagery Image Tiles. Orthorectified GeoTIFF files shall represent tiles as defined in the project tiling scheme with no chip-overedge. Corner coordinates will be based on the UTM 8N grid.

Orthorectified Image Index Feature Class A single feature class for all orthorectified tiles. The project index shall include image tile boundaries and filenames, and shall be georeferenced in latitude/longitude coordinates and be compatible with Esri® ArcGIS version 10.5 and higher.

Imagery Mosaic An orthoimagery mosaic will be created using multiple digital images (that is, chips) to produce the final product for the entire project area. Specular reflections and other artifacts should be minimized, especially in developed areas, by patching the area using chips from adjacent overlapping imagery. Above ground features appearing in the orthoimage imagery, such as building roof tops, water towers, and radio towers, shall not be clipped at seamlines or between individual image files.

Flight Diagram A flight diagram or flight index that illustrates the project area outline, the location of the flight lines and the approximate location of image centers, if relevant, shall be included as a deliverable.

This diagram shall be provided in digital shapefile format suitable for loading into Esri® ArcGIS version 10.5 or higher.

Ground Control points and check points Independent check points used for accuracy assessment and image registration shall be included as a deliverable. Surveyed independent check points require a summary report of methodology used in the accuracy assessment and image registration (i.e., Section 2.4.1.9). Coordinates for all check points shall be provided in both Geodetic (Lat/Long DMS) and Projected (UTM, Zone 8, NAD83 (2011) coordinates, with elevation components based on NAVD88, using Geoid12B Alaska expressed in units of meters. Delivery preference is CSV file format with column headers including units (e.g. meters). Check points shall be delivered on portable media, in a nonproprietary format.

Supporting shapefiles Examples include, GIS shapefiles of all ground survey monument points established for the project, shapefiles of the tile index (polygon feature), and shapefiles of the individual flightlines and flightline swaths (line and polygon features).

Metadata Project metadata describing the orthoimage production process and tile level metadata for each image file shall be submitted as a deliverable. Federal Geographic Data Committee (FGDC) compliant metadata shall be provided in text (.txt) and extensible markup language (.xml) format for each orthorectified image file. FGDC compliant metadata for each orthoimage file shall be delivered on portable media.

Project Report Text report that describes data collection and survey methods, equipment, occupation parameters, quality analysis/quality control, including internal consistency and absolute accuracy; and metadata. Include list documenting the deliverable files (.pdf or .docx format).

Delivery media All digital content for the project will be delivered on external USB 3.0 hard drive(s) to the NPS project Technical POC.

MEETINGS

For all meetings, the contractor shall be responsible for providing meeting materials, and administrative and facilitation support. Meetings will be conducted through teleconferencing, until such time as in-person meetings are acceptable to all parties. At such time as in-person meetings are determined to be acceptable, a location will be agreed upon by all involved.

Post-Award Kick-Off Meeting Within 10 business days of contract award, the Government will conduct a post-award kickoff meeting. A kick-off meeting shall be held to outline communication procedures that shall be followed for data acquisition with respect to verification of local ground conditions and vegetation phenology requirements. This meeting shall be used as a forum to clarify and resolve collection condition issues. Local contact(s) shall be established to provide ground condition updates. An on-site meeting is not required as a teleconference is sufficient for the Government’s needs.

Intermittent Project Status Reviews At the sole discretion of the Government, intermittent project status reviews may be conducted on an informal basis by telephone or teleconference. The purpose of the review will be to review the progress of the program, identify any risks, issues, or concerns, and provide feedback on the

Contractor’s progress and performance.

REQUIRED TRAVEL AND OTHER DIRECT COSTS (ODCS)

Travel will be conducted in accordance with Federal Travel Regulation and will be conducted at the expense of the contractor.

https://www.gsa.gov/policy-regulations/regulations/federal-travel-regulation

“ATTACHMENT A”

PROJECT DIAGRAM AND AREAS OF INTEREST

END ATTACHMENT ‘A’

“ATTACHMENT B”

THIS SECTION CONSISTS OF THE FOLLOWING DATA SET(S)

NPS_KLGO_Ortho_Project_AOIs_20230706_PWS_Attachment_B.zip

END “ATTACHMENT B”