Layer: Federal Topology Errors Less than 5 Acres (ID:2)

View In: Map Viewer

Name: Federal Topology Errors Less than 5 Acres

Display Field: OriginObjectClassName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Is View: true

Is Updatable View: true

Source Schema Changes Allowed: true

Sources

Description: This layer identifies small overlaps (less than 5 acres in size) between federally managed records (minimum distance between feature coordinates to evaluate overlap relationship = 0.05 meter) within the PAD-US 2.1 Fee Feature Class plus State managed designations from the Designation feature class. As an aggregated data inventory, PAD-US contains thousands of data sources which are all integrated into one combined database. The policy of USGS is to accept agency data “as is” and translate them into the PAD-US format. Boundaries created by a specific agency or data steward may not fully align with those of another, creating GIS topology errors (mostly minor boundary discrepancies) associated with fee parcel ownership. In addition, more than one agency may submit an area for PAD-US without complete attributes that differentiate the fee owner and land manager. The FGDC Federal Lands Working Group (FLWG, https://communities.geoplatform.gov/ngda-govunits/federal-lands-workgroup/) and the PAD-US Team made great progress with version 2.1 in reducing boundary discrepancies among federal agencies and between federal and state lands. PAD-US has a number of feature classes that overlay one another - for example, some easements overlay fee lands or other easements; many designation or proclamation boundaries overlay fee and/or easement lands, as well as other designations/proclamations. These are not errors - they are an accurate reflection of the world of protected areas data. But they can create challenges for spatial data users. In PAD-US version 2.1, designations and proclamations are in separate feature classes which has helped address this issue, but overlapping boundaries still remain in the fee parcel ownership layer desired for many applications. Users are encouraged to generally review these overlaps, contained in this record or the full topology assessment available here: https://doi.org/10.5066/P92QM3NT .

Copyright Text: U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2020, Protected Areas Database of the United States (PAD-US) 2.1: U.S. Geological Survey data release, https://doi.org/10.5066/P92QM3NT .

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Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

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Templates:

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Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 7/23/2021 6:46:27 PM

Schema Last Edit Date: 7/23/2021 6:46:27 PM

Data Last Edit Date: 7/23/2021 6:46:27 PM

Supported Operations: Query Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat