Maui_2019_DTM.tif

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Publication_Date: 20210420

Title: Maui_2019_DTM.tif

Geospatial_Data_Presentation_Form: remote-sensing image

Description:

Abstract:

1'/px, LIDAR-derived, bare earth Digital Terrain Model DEM/elevation raster parts of Maui and Molokai (Central Molokai, Kahului, Kihei, Lahaina, Pukalani). XY units: feet, Z units: meters

Purpose:

Partial coverage Vexcel, Inc. LIDAR of Maui and Molokai were purchased to assist with three dimensional modeling of structures in areas of higher development.

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -156.524071

East_Bounding_Coordinate: -156.339136

North_Bounding_Coordinate: 20.960334

South_Bounding_Coordinate: 20.828949

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Maui

Theme_Keyword: Vexcel

Theme_Keyword: LIDAR

Theme_Keyword: 2019

Theme_Keyword: Hawaii

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: elevation

Access_Constraints: None

Use_Constraints:

1. Disclaimer - This dataset is being placed in the public domain. Any use is allowed except for re-sale. Neither Vexcel, Inc., the County of Maui, nor the State of Hawaii make any guarantees, expressed or implied, regarding its accuracy or fitness of use. Users should verify XYZ values through a licensed surveyor for any engineering application. This data should only be used as a guide, vs. a statement of fact regarding real-world conditions. 2. Vertical Datum - The originator of this LIDAR dataset, Vexcel Inc. of Boulder, Colorado referenced Z values to the North American Vertical Datum of 1988 (NAVD88). NAVD88 is not recognized as a valid vertical reference for the state of Hawaii. Currently Hawaii has no official (de jure or de facto) vertical datum, and NOAA's National Geodetic Survey (NGS) recommends that elevations be referenced to the nearest NOAA tidal gauge. A legacy LIDAR dataset produced in 2013 by the United States Army Corps of Engineers (USACE) used NAD83(PA11) as its vertical reference. In theory this approach should result in better accuracy for the Z dimension as PA11 is a Pacific plate-centric datum. In comparing flat areas containing neither structures or vegetation, it was found that the Vexcel values sit approximately 4 feet above the USACE dataset. The vertical datum issue was brought to the attention of Vexcel, Inc. Vexcel used the 2013 USACE LIDAR as vertical control to correct their LIDAR data. The (corrected) .las data is shared as it was delivered. As stated above, the use of this data transfers all risks and assumption of responsibility to the user.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: County of Maui, Hawaii

Contact_Person: Maui County Enterprise GIS

Contact_Address:

Address_Type: unknown

Address: 2145 Kaohu Street, Suite 104

City: Wailuku

State_or_Province: HI

Postal_Code: 96793

Country: US

Contact_Electronic_Mail_Address: GISMonitor@co.maui.hi.us

Data_Set_Credit: Vexcel Inc. of Boulder, Colorado, 2019.

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.6.1.9270

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 47631

Column_Count: 63056

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: State of Hawaii

Contact_Person: Hawaii Statewide GIS Program

Contact_Electronic_Mail_Address: gis@hawaii.gov

Distribution_Liability: See access and use constraints information.

Metadata_Reference_Information:

Metadata_Date: 20210421

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: County of Maui, Hawaii

Contact_Person: Maui County Enterprise GIS

Contact_Address:

Address_Type: unknown

Address: 2145 Kaohu Street, Suite 104

City: Wailuku

State_or_Province: HI

Postal_Code: 96793

Country: US

Contact_Electronic_Mail_Address: GISMonitor@co.maui.hi.us

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Use_Constraints:

1. Disclaimer - This dataset is being placed in the public domain. Any use is allowed except for re-sale. Neither Vexcel, Inc., the County of Maui, nor the State of Hawaii make any guarantees, expressed or implied, regarding its accuracy or fitness of use. Users should verify XYZ values through a licensed surveyor for any engineering application. This data should only be used as a guide, vs. a statement of fact regarding real-world conditions.2. Vertical Datum - The originator of this LIDAR dataset, Vexcel Inc. of Boulder, Colorado referenced Z values to the North American Vertical Datum of 1988 (NAVD88). NAVD88 is not recognized as a valid vertical reference for the state of Hawaii. Currently Hawaii has no official (de jure or de facto) vertical datum, and NOAA's National Geodetic Survey (NGS) recommends that elevations be referenced to the nearest NOAA tidal gauge. A legacy LIDAR dataset produced in 2013 by the United States Army Corps of Engineers (USACE) used NAD83(PA11) as its vertical reference. In theory this approach should result in better accuracy for the Z dimension as PA11 is a Pacific plate-centric datum. In comparing flat areas containing neither structures or vegetation, it was found that the Vexcel values sit approximately 4 feet above the USACE dataset. The vertical datum issue was brought to the attention of Vexcel, Inc. Vexcel used the 2013 USACE LIDAR as vertical control to correct their LIDAR data. The (corrected) .las data is shared as it was delivered. As stated above, the use of this data transfers all risks and assumption of responsibility to the user.