Gap Analysis Project

PAD-US Data History

Version 2.0 — Released September 2018 (most recent version of PAD-US)

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This is a major update including:

  • Expanded database structure with new layers: the geodatabase feature class structure now includes nine feature classes separating fee owned lands, conservation (and other) easements, management designations overlapping fee lands, marine areas, proclamation boundaries and various ‘Combined’ feature classes (e.g. ‘Fee’ + ‘Easement’ + ‘Designation’ feature classes).

  • Major update of the Federal estate including data from 8 agencies: Bureau of Land Management (BLM), U.S. Fish and Wildlife Service (FWS), National Park Service (NPS), Forest Service (USFS), Department of Defense (DOD), National Oceanic and Atmospheric Administration (NOAA), Bureau of Ocean Energy Management (BOEM) and Natural Resources Conservation Service (NRCS). The U.S. Census Bureau also provided updated State jurisdictional boundaries, the authoritative standard to attribute 'State Name' in PAD-US. Data from the Army Corps of Engineers (USACE), Bureau of Reclamation (USBR), Department of Energy (DOE), Agricultural Research Service (ARS), and Tennessee Valley Authority (TVA) were transferred from PAD-US 1.4 as best available data. The Federal update was developed in close collaboration with the FGDC Federal Lands Working Group (FLWG) (https://communities.geoplatform.gov/ngda-govunits/federal-lands-workgroup/). Federal lands data include those administered under fee title (e.g. 'National Forest', 'National Park', 'National Wildlife Refuge'), congressional designations (e.g. 'Wilderness Area', 'Wild and Scenic River'), Presidential proclamations (e.g. 'National Monument'), administrative protected areas (e.g. BLM 'Area of Critical Environmental Concern', USFS 'Research Natural Area') and conservation easements. The new 'Proclamation' feature class includes boundaries that provide additional context for the 'Fee', 'Designation', or 'Easement' feature classes, suitable for display as an outline because internal ownership is not represented. These include Military Lands, Proclamation (National Park Service and Forest Service), or Approved Acquisition Boundaries (Fish and Wildlife Service). Bureau of Indian Affairs (BIA) American Indian and Alaskan Native Lands are not included in PAD-US 2.0.

  • Major updates in 30 States, plus limited additions in 16 other States following the integration of nonprofit partner databases as described below. The PAD-US State Data-Steward Network provided 12 State updates (including State, local government and (or) privately protected fee lands only) in California, Georgia, Iowa, Idaho, Minnesota, Missouri, New Jersey, New York, Oregon, Tennessee, Virginia, and West Virginia. States and Territories without updates were transferred from PAD-US 1.4. Information regarding State data-stewards is available here.

  • The Nature Conservancy's (TNC) Secured Lands 2015 Public Database (http://www.conservationgateway.org/ConservationByGeography/NorthAmerica/UnitedStates/edc/reportsdata/terrestrial/secured/Pages/default.aspx) completely replaced non-Federal data in an additional 9 States and the District of Columbia across the eastern seaboard including States without PAD-US updates since 2014 or where no active State steward is available for Connecticut, Delaware, Massachusetts, Maryland, Maine, New Hampshire, Pennsylvania, Rhode Island, and Vermont. In addition, new protected areas were added to help complete the inventory in Alabama, Florida, Georgia, North Carolina, New Jersey, New York, South Carolina, Virginia and West Virginia. Please note differences in standards exist. The Nature Conservancy integrates overlapping designations directly into fee ownership. Efforts to improve alignment with PAD-US are in progress.

  • Ducks Unlimited (DU, https://www.ducks.org) integrated Conservation and Recreation Lands (CARL) data (non-Federal only) in Illinois, Indiana, Michigan, Ohio, and Wisconsin. DU will no longer maintain CARL and will submit updates directly to USGS for future PAD-US updates.

  • The Trust for Public Land's (TPL) Conservation Almanac (https://www.conservationalmanac.org) database added protected areas (non-Federal) to PAD-US in 46 States including Arizona, Colorado, Georgia, Illinois, Montana, North Carolina, New Jersey, Oregon, and South Carolina that had more than 50 new additions. Please note that agency source data are not reflected in PAD-US 'Local' fields. 'Local Designation Type' includes National Conservation Easement Database (NCED) descriptions while 'Local Unit Name', 'Local Manager' and 'Local Owner' reflect public spending information collected for the Conservation Almanac. Spending attributes do not always reflect the original spatial data provided by managing agencies.  Efforts to improve alignment with PAD-US are in progress.

  • The Nature Conservancy Lands (TNC, https://www.tnclands.tnc.org/) database update: the national source of lands owned in fee or managed by TNC. Please note that TNC shared easements with the National Conservation Easement Database (NCED) team for integration prior to the NCED delivery for PAD-US.

  • Complete National Conservation Easement Database update (NCED, https://www.conservationeasement.us): Integration of non-sensitive easements (suitable for publication in the public domain) from NCED, provided by NCED Partners Ducks Unlimited and the Trust for Public Land. Federal easements are compiled by USGS in cooperation with the FLWG and shared with Ducks Unlimited for NCED integration.

  • Complete National Marine Protected Areas (MPA) update: from the NOAA MPA Inventory (https://marineprotectedareas.noaa.gov). This update includes significant changes to GAP Status Code and IUCN Category following NOAA’s conservation measures review.

  • First integration of Bureau of Energy Ocean Management (BOEM, https://www.boem.gov/) managed marine lands: BOEM submitted Outer Continental Shelf Area lands managed for natural resources (minerals, oil and gas), a significant and new addition to PAD-US.  

  • Fee boundary overlap assessment: topology overlaps in the PAD-US 2.0 'Fee' feature class have been identified and are available for user and data-steward reference. Users are encouraged to overview these overlaps prior to analyses involving fee lands data by reviewing the PAD-US 2.0 Topology Overlap Assessment referenced in the Logical_Consistency_Report Section of PAD-US 2.0 metadata. The assessment identifies all overlaps (minimum distance between feature coordinates to evaluate overlap relationship = 0.05 meter), large (greater than 5 acres) and small (less than 5 acres) overlaps between Federal agency lands and between Federal and State agency lands data in the Fee feature class.

See PAD-US Metadata and Supplemental_Info_Readme.txt for more information, including a summary of minor updates:https://doi.org/10.5066/P955KPLE

 

Version 1.4 — Released May, 2016 

This is a major update including:

  • Full replacement of federal lands, developed with the FGDC Federal Lands Working Group ( https://communities.geoplatform.gov/ngda-govunits/federal-lands-workgroup/)
  • Twenty PAD-US State Steward Network submissions: AK, AL, AZ, CA, FL, GA, IN, KS, KY, MS, NE, NC, NV, OK, OR, SC, TX, UT, WA and WY.
  • The Nature Conservancy (TNC) owned lands.
  • Conservation easements from the National Conservation Easement Database (NCED), suitable for distribution in the public domain.
  • Trust for Public Land (TPL) contribution of local government areas in 13 States.
  • National Marine Protected Areas (MPA) from the NOAA MPA Center.
  • Conservation measures reviews (“GAP Status Code”, “IUCN Category”).
  • Additional standardized “Designation Type” categories.
  • New standardized “Manager Type” and “Manager Name” fields.
  • Additional “Date of Establishment” for trends analyses (field in development)
  • Public Access” review by select PAD-US Stewards and federal partners.
  • Available parcel data dissolved on PAD-US attributes to increase database performance.
  • Many new standard layers to view and interpret PAD-US (Web Map Services coming soon).

 

Version 1.3 — Released November, 2012 

Updates to 1.3 were generally focused on state lands, easements, marine protected areas and “Date of Establishment”. Specific changes include:

  • A revised structure with four feature classes and associated attributes: marine protected areas, fee protection, conservation easements and a combined file that integrates all. GAP also developed an analysis file that eliminates the multiple overlaps
    (legitimate and boundary errors) that exist in protected areas data. Send requests to the PAD-US Coordinator
  • State, local government and private protected area updates delivered from PAD-US State Data Stewards: CO (Colorado State University), FL (Florida Natural Areas Inventory), ID (Idaho Fish and Game), MA (The Commonwealth’s Office of Geographic Information Systems, MassGIS), MO (University of Missouri, MoRAP), MT (Montana Natural Heritage Program), NM (Natural Heritage New Mexico), OR (Oregon Natural Heritage Program), VA (Department of Conservation and Recreation, Virginia Natural Heritage Program).GAP prioritized the development of a State Data Steward Network following the PAD-US Design Project and continues to invest accordingly. FY11 Data Stewards delivered seven state updates in September 2012 (WA, WY, UT, KY, NM, GA, MS) for integration into NCED and PAD-US v1.4 while FY12 Steward deliveries (NV, AZ, KS, OK, TX, IN, AL, NJ, AK) are expected September 2013.
  • Integration of non-sensitive National Conservation Easement Database (NCED) easements through July 2012 with PAD-US version 1.2 easements. Duplicates have been removed. NCED and PAD-US are linked via Source UID in the PAD-US version 1.3 Easement feature class. Easements provided by PAD-US State Data Stewards are sent to NCED for UID assignment and integration.
  • Select local government (i.e. county, city) protected areas aggregated by the Trust for Public Land (TPL) for their Conservation Almanac not previously available in the PAD-US Inventory.
  • A new “Date of Establishment” field that identifies the year an area was designated or otherwise protected, attributed for 86% of GAP Status Code 1 and 2 protected areas. Additional dates will be provided in future updates.
  • A national wilderness area update from wilderness.net
  • The “Access” field that describes public access to protected areas as defined by data stewards or categorical assignment. The new “Access Source” field to document assignment methods. GAP plans to expand available recreation data in future updates.
  • The transfer of conservation measures (i.e. GAP Status Codes, IUCN Categories) and documentation (i.e. GAP Code Source, GAP Code Date) from PAD-US version 1.2 where appropriate. GAP is meeting with UNEP-World Conservation Monitoring Center (WCMC) to update the World Database on Protected Areas (WDPA, protectedplanet.net) with PAD-US version 1.3 in March 2013.
  • Official (member and eligible) Marine Protected Areas (MPA) from the NOAA MPA Inventory (March 2011, www.mpa.gov) translated into the PAD-US schema with conservation measures transferred from PAD-US version 1.2 or categorically assigned to new protected areas in collaboration with NOAA and WCMC. GAP identified MPA records that overlap existing protected areas in the PAD-US Fee feature class (i.e. PADUS Overlap field in MPA feature class). For example, many National Wildlife Refuges and National Parks are also MPAs and are represented in both the PAD-US MPA and Fee feature classes.

Note: NLCS National Trails and Wild and Scenic Rivers were not included in this update as they are represented in line format. GAP will integrate these protected areas later this year when polygon data representing their protected areas is available

  • Protected areas and GAP Status Codes in the US Virgin Islands in collaboration with the US Forest Service staff at the International Institute of Tropical Forestry
  • Pacific Islands (American Samoa, Guam, Palau, Mariana Islands, Marshall Islands, Federated States of Micronesia) protected areas and GAP Status Codes in collaboration with USGS staff from the Pacific Biodiversity Information Forum (PBIF).
  • New protected areas and GAP Status Code review of Washington State Department of Fish and Wildlife (WDFW) lands thanks to WDFW staff.
  • Results of recommendations from the PAD-US Technical Team to reorganized and refined the Primary Designation Type field to improve database queries.

 

Version 1.2 — Released April, 2011 

Updates to PADUS 1.2 were generally focused on federal and territorial lands. This update includes:

  • National Park Service (NPS) parcel data and GAP Status Code review in partnership with NPS Lands and NPScape
  • Official Marine Protected Areas (MPAs), documented in the current NOAA MPA Inventory (March 2010) as member or eligible MPAs for the National System of MPAs.
  • National Department of Defense (DOD) lands update in partnership with DOD Partners in Flight
  • National wilderness area updates signed into law in the Omnibus Public Lands Act of 2009 thanks to the Wilderness Institute
  • Current BLM National Landscape Conservation System (NLCS) protected areas with special assistance from the BLM Division of Lands, Realty and Cadastral Survey

Note: NLCS National Trails and Wild and Scenic Rivers were not included in this update as they are represented in line format. GAP will integrate these protected areas later this year when polygon data representing their protected areas is available

  • Protected areas and GAP Status Codes in the US Virgin Islands in collaboration with the US Forest Service staff at the International Institute of Tropical Forestry
  • Pacific Islands (American Samoa, Guam, Palau, Mariana Islands, Marshall Islands, Federated States of Micronesia) protected areas and GAP Status Codes in collaboration with USGS staff from the Pacific Biodiversity Information Forum (PBIF).
  • New protected areas and GAP Status Code review of Washington State Department of Fish and Wildlife (WDFW) lands thanks to WDFW staff.
  • Results of recommendations from the PAD-US Technical Team to reorganized and refined the Primary Designation Type field to improve database queries.

 

Version 1.1 — Released May, 2010 

Primary updates between PAD-US version 1 to 1.1 are:

  • Complete updates (best available attributes, line work and conservation measures) in the northwest states of WA, OR, ID, WY, MT in partnership with the BLM and USFS.
  • Complete CA update integrating CPAD (best available attributes, line work and conservation measures) into PAD-US in partnership with GreenInfo Network.
  • Complete updates (best available attributes, line work and conservation measures) in the northeast states of ME, VT, NH, MA, CT, RI, NY, NJ, DE, PA, OH, WV, MD, VA in partnership with The Nature Conservancy’s Eastern Regional Office.
  • Complete national update from The Nature Conservancy’s Conservation Data Information Systems (CDIS) Unit including nature preserves and publically available conservation easements.
  • A new core attribute schema with “Category” (Fee or Easement parcel), “Manager Name”, “Secondary Designation Name” and “Status” (Designated or Proposed site) to complement existing fields in PADUS version 1 such as “Owner Type”, “Owner Name” and “Primary Designation Type” developed with the PAD-US Technical Team.
  • Updated IUCN Category conservation measures.

 

Version 1.0 — Released April, 2009 

Original release of the Protected Areas Database of the United States (PAD-US) by GAP on behalf of the PAD-US Partnership to the UNEP-World Conservation Monitoring Center (WCMC). This was the first demonstration of the PAD-US Partnership that seeks to improve efficiency and leverage resources in protected areas data aggregation and maintenance. The geodatabase standardized regional GAP updates (southwest, southeast and middle US) with PAD-US Partner data in the northwest (Conservation Biology Institute) and northeast (The Nature Conservancy). GAP worked with WCMC to assign IUCN Categories to protected areas in PAD-US that meet the IUCN definition of protection as, “A clearly defined geographical space, recognized, dedicated and managed, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values”. Over 22,000 US protected areas were submitted to WCMC for inclusion in the World Database on Protected Areas (WDPA) available to view or download from: protectedplanet.net.