Harbor_Depth_1.doc
DOC document 250 KB Posted
- Solicitation number
- 140P8224Q0007
About this file
This document contains a sources sought notice for annual roundtrip barge service to Kalaupapa National Historical Park in Hawaii. Interested offerors are requested to express interest by January 26, 2024 via email to the contracting officer and contract specialist listed. The selected contractor will provide all labor, materials, supplies, equipment and travel necessary to complete the attached performance work statement. Quotes should include pricing for the base year of service as well as five option years in the form of line items provided. Evaluation will consider past performance and price, with award likely going to the offer with the highest past performance rating that also has a low price. The solicitation will be conducted in accordance with FAR 13.106-2(b)(4)(ii) by the Department of the Interior National Park Service.
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Other files
| File | Type | Posted |
|---|---|---|
| Kalaupapa_Visitor_Rules_1.pdf | ||
| Harbor_Drawings_1.pdf | ||
| Harbor_Bathymetry_1.xlsx | XLSX spreadsheet | |
| PWS_KALA_Barge_(1_10_2024)_1.docx | DOCX document | |
| Sample_Manifest_1.xlsx | XLSX spreadsheet |
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Text version
Figure 1. Kalaupapa harbor on Moloka‘i showing depth contours in meters. Water depths are at Mean Lower Low Water (MLLW). To convert from meters to feet multiply by 3.28.Depth contours derived from U.S. Army Engineer Joint Airborne Lidar Bathymetry Technical Center of Expertise.
Metadata for bathymetry contours.
Abstract
These data were collected by the SHOALS (Scanning
Hydrographic Operational Airborne Lidar Survey) system which consists of an airborne laser transmitter/receiver capable of measuring 400 soundings per second. The system operates from a deHavilland DHC-6 Twin Otter flying at altitudes between 200 and 400 meters with a ground speed of about 100 knots. The SHOALS system also includes a ground-based data processing system for calculating acurate horizontal position and water depth.
Lidar is an acronym for LIght Detection And Ranging. The system operates by emitting a pulse of light that travels from an airborne platform to the water surface where a small portion of the laser energy is backscattered to the airborne receiver. The remaining energy at the water's surface propogates through the water column and reflects off the sea bottom and back to the airborne detector. The time difference between the surface return and the bottom return corresponds to water depth. The maximum depth the system is able to sense is related to the complex interaction of radiance of bottom material, incident sun angle and intensity, and the type and quantity of organics or sediments in the water column. As a rule-of-thumb, the
SHOALS system should be capable of sensing bottom to depths equal to two or three times the Secchi depth.
Purpose
The purpose of the Kaluanui Point survey was to collect and map data from the shoreline to -30m depths.
Time period for which the data is relevant
Date and time: 20001100
Description:
Ground Condition Publication Information
Who created the data: US Army Engineer Joint Airborne Lidar Bathymetry Technical Center of Expertise.(ed.)
Date and time: 20010500 at time Unknown
Constraints on accessing and using the data
Access constraints: None Use constraints:
Acknowledgement of the U.S. Army Engineer Joint Airborne Lidar Bathymetry Technical Center of Expertise
(JALBCTX) would be appreciated in products derived from these data.
Who completed this document
Eddie Culpepper REQUIRED: The person responsible for the metadata information.
USACE
REQUIRED: The organization responsible for the metadata information.
mailing and physical address:
OP-J
109 St. Joseph Street
Mobile, AL 36602
251-690-3467 (voice)
Currentness of this source
Date and time: 20001100
Spatial data quality
Horizontal positional accuracy
+/- 3 meters (1 sigma)
Vertical positional accuracy
+/- 15 cm (1 sigma)
File details come from the government source that posted it. Updated .