3D Elevation Program (3DEP)

Sheri Schneider, USGS

Geospatial Liaison

February 18, 2014

Courtesy of NRCS

3D Elevation Program (3DEP)

A national USGS initiative to improve the elevation data and to support other mission critical needs for lidar data in the conterminous US, Hawaii and territories and for ifsar data in Alaska

2 points per sq. meter. Complete one cycle of data collection in 8 years

Classified point cloud data and 1 meter DEMs

Partnership model funded primarily by Federal agencies and states.

Operational in January 2015 with full data coverage by 2022

Products

Criteria

Data Acquisition Contracts

Specifications

State Roles and Responsibilities

DRAFT

Comment Period Extended to Friday 2/12/2014

Draft 3DEP Standard ProductsProduct Name Source(s) Planned Product Lidar Full Point Cloud - Unclassified Lidar – QL1, QL2, QL3 Project areas by special request Lidar Full Point Cloud - Classified Lidar - QL1, QL2, QL3 Project tiles by download Ifsar Digital Surface Model Ifsar – QL5 Project tiles by download Orthorectified Ifsar Intensity Image Ifsar – QL5 Project tiles by download Source resolution DEM Lidar, Ifsar Project tiles by download 1 meter DEM Lidar, Ifsar Tiles (TBD) by download 5 meter DEM Ifsar Tiles (TBD) by download 1/9 arc-second DEM - legacy Lidar, Ifsar, Photogrammety 15 min block by download 1/3 arc-second DEM Lidar, Ifsar, Photogrammety 1x1 degree block by download 1 arc-second DEM Lidar, Ifsar, Photogrammety 1x1 degree block by download 2 arc-second DEM Lidar and Ifsar, Photogrammetry 1x1 degree block by download Elevation Point Query 1/3 arc-second, 1 arc-second in AK Application service Hillshade 1/3 arc-second, 1 arc-second in AK Viewing service

5 to 120 foot Contours 1/3 arc-second, 1 arc-second in AK 1 degree block by download and viewing service

Standard Oregon Products not included - highest hits, intensity image, ground only points. Bare Earth DEM is hydroflattened.

Draft Criteria

Highest net benefits identified in the NEEA requirements study

Federal, state or regional partner elevation data acquisition plan

No existing lidar

Existing lidar does not meet 3DEP requirements

Existing lidar older than 8 years old

Significant topographic change

Serious and significant hazards (earthquakes, landslides, etc.)

1500 – 5000 sq. mi in size, increasing emphasis on larger projects

Draft Data Acquisition Contracts

USGS will manage the process to accept partnership proposals

Partners will propose an acquisition approach that best meets their needs, either:

USGS Geospatial Products and Services Contract (GPSC) Seven prime contractors with multiple subcontractors Will re-compete in 2014

State’s own authorities and contracts to acquire data that meet the 3DEP specification.

Draft Deliverables/Specifications

Raw Point Cloud

Classified Point Cloud

Hydro-flattened Bare Earth DEMs, 1 meter grid cell

Breaklines – when used for hydro-flattening

Metadata

RMSEz from ≤ 9.25 centimeters

2 pts/sq. meter, optional buy up to 8 pts/sq. meter

Nominal pulse spacing (NPS) 0.7 meters

Draft State Roles and Responsibilities Coordinate and facilitate local and regional partnerships

Advocate and support the goal of achieving nationwide coverage. 

Participate in partnership data acquisition projects Adopt national specifications and standards Make resulting data available to the national program May collect data to a higher quality specification

Develop a statewide program strategy and seek funding to participate in partnership activities

Estimated Cost Rough estimate - $32 million for Oregon statewide

$20 million to buy up to 8 pts/sq. mtr

Table F-1, NEEA Report

Estimated Cost based on acquisition by 1 Degree Cells, NEEA Report

1 Degree Cell size ranges from 3000 – 4000 sq. mi.

Estimated Cost/ 1 degree cell - $1 million – $1.3 million

Image Courtesy of DOGAMI