Processes & Procedures for Data QA/QC GIS & DM 2008 Conference How Accurate is your Boundary… ask Lands Jean Olson Richard Easterbrook Jeannie Whitler.

Processes & Procedures for Data QA/QCGIS & DM 2008 Conference

How Accurate is your Boundary… ask Lands

Jean OlsonRichard EasterbrookJeannie Whitler


The Land Resources Division (LRD) is responsible for the Official Boundary, Legislative Maps, Acreage Calculations and Land Status Maps for all NPS park units.

May 4th 2004 Director of the National Park Service, Fran Mainella

►Quality Assurance:Quality Assurance:Activities designed to ensure the development and maintenance process Activities designed to ensure the development and maintenance process

is adequate to ensure a system will meet its needs.is adequate to ensure a system will meet its needs.


Land Acquisition Procedures (LAPS) Chapter 5 - Land Status Mapping StandardsLand Acquisition Procedures (LAPS) Chapter 5 - Land Status Mapping Standards► Data Sources (e.g., BLM, USGS, NPS, State & Local Gov.)Data Sources (e.g., BLM, USGS, NPS, State & Local Gov.)► Computer Software PlatformsComputer Software Platforms► Map Content (e.g., boundary, tracts, drawing number)Map Content (e.g., boundary, tracts, drawing number)► CAD Drawing Requirements (e.g. layer organization, topology)CAD Drawing Requirements (e.g. layer organization, topology)

Digital Map Conversion Standard Operating Procedures (SOP)Digital Map Conversion Standard Operating Procedures (SOP)

Legislative Map Guidelines & Template – Congressional & Legislative AffairsLegislative Map Guidelines & Template – Congressional & Legislative Affairs

Metadata Template & FGDC GuidelinesMetadata Template & FGDC Guidelines

► Land Status Map (Segment Map) Templates (e.g., Symbology)Land Status Map (Segment Map) Templates (e.g., Symbology)

► Distribution of Final Product (TIC, WASO, GIS Coord., SuperintendentsDistribution of Final Product (TIC, WASO, GIS Coord., Superintendents))


► Quality Control:Quality Control:Activities designed to evaluate a developed work product.Activities designed to evaluate a developed work product.

Database IntegrityDatabase Integrity► Check all attributes from the Master Deed List (MDL) to Check all attributes from the Master Deed List (MDL) to

ensure they match the GIS file and final segment map.ensure they match the GIS file and final segment map.

Tract IntegrityTract Integrity► Check coordinate geometry against deeds, legal descriptions, Check coordinate geometry against deeds, legal descriptions,

legislation/legislative maps, survey and historic maps.legislation/legislative maps, survey and historic maps.

Spatial IntegritySpatial Integrity► Check control sources (e.g. monumentation), surveys, ortho-Check control sources (e.g. monumentation), surveys, ortho-

photography, topographic maps and misc. GIS data. photography, topographic maps and misc. GIS data.

Attribute Integrity Attribute Integrity ► Verify proper layering and symbology and check attributes with Verify proper layering and symbology and check attributes with

ownership database.ownership database.

22ndnd Review Process Review Process► All above checks are performed by an additional Lands All above checks are performed by an additional Lands

cartographer.cartographer.► Review the final shapefile in ArcGIS for spatial and attribute Review the final shapefile in ArcGIS for spatial and attribute

integrity. Check projection.integrity. Check projection.

► Build and verify topology.Build and verify topology.


Cogo Deed Boundary

Accretion of Land



Lessons Learned w/o QAQC:

Incorrect boundaries in GMPs

Incorrect acreage calculations

National Park Service activities on private inholdings

Planned inventory, monitoring and resource survey projects unaware of possible acquisition or boundary expansions/adjustments.

RED- Boundary used in GMPGreen- Actually park boundary


Having a central boundary conversion provides the opportunity to resolve shared boundaries.



Boundaries are dynamic

Last 10 years:

►73 park units have had legislative boundary expansions.This does not include minor boundary adjustments.►Over 2.7 million acres have been added to the boundaries.►Over 11,244 Tracts have been acquired, totaling over 1.1 million acres.►18 New park units►NPS has interests in 93.14% of the properties in legislative boundaries.

Technology Improvements►Software (e.g., Cadastral Fabric)►Survey equipment (e.g., GPS Total Stations)

New Surveys


Available Lands Resources

LandsNethttp://landsnet.nps.gov/

TractsNethttp://landsnet.nps.gov/tractsnet/

Whitler

Easterbrook

Olson


CADStandard Layers


Segment Map

TractRegister

Change Order

Revision Block

Drawing Number

CADDrawing

GISShapefile


SurveyPlat


LegislativeMap


LandsMetadataTemplate


DatabaseIntegrityMasterDeedList


Tract IntegrityDeeds


SpatialIntegrity

BuildTopology


TopologyErrors


Attribute Integrity

Processes & Procedures for Data QA/QC GIS & DM 2008 Conference How Accurate is your Boundary… ask Lands Jean Olson Richard Easterbrook Jeannie Whitler.

Documents

legislative boundaries

nps boundaries

official boundary

yellow boundary

land status maps

central boundary conversion

nps park units

incorrect boundaries