Caribbean Low-Urban Historic Landscapes (Southeast Blueprint Indicator) [U.S. Fish and Wildlife Service]
{'name': 'Department of the Interior'} Full Details
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Full Details
- Title
- Caribbean Low-Urban Historic Landscapes (Southeast Blueprint Indicator) [U.S. Fish and Wildlife Service]
- Description
- Reason for Selection Low-urban historic landscapes indicate significant cultural landscapes whose cultural context has been less impacted by urban development. Cultural landscapes are "properties [that] represent the combined works of nature and of man" (UNESCO 2012). Loss of natural habitat within these cultural landscapes reduces their overall historic and cultural value. Input Data Southeast Blueprint 2023 subregions: Caribbean Southeast Blueprint 2023 extent 2020LANDFIRE Existing Vegetation Type(EVT) (v2.2.0) for Puerto Rico and the U.S. Virgin Islands;access the data for U.S. Insular Areas The following The National Register of Historic Places data for Puerto Rico provided by Eduardo Cancio, Information Systems Specialist with the Puerto Rico State Historic Preservation Office (SHPO) on 2-21-2023 (contact ecancio@prshpo.pr.gov for more information):NRHP_PR_individual_properties.shp NRHP_PR_lineal_districts.shp NRHP_PR_polygonal_districts.shp The National Register of Historic Places reflects what Americans value in their historic built environment. It is the collection of our human imprint on the landscape that records through time our changing relationship with the landscape, bridging between modern life and our history by providing, as closely as possible, experiences that evoke our empathy and understanding of previous eras. OpenStreetMap data"multipolygons" layer, accessed 3-14-2023 A polygon from this dataset is considered a historic site if the "historic" tag is not null. In OpenStreetMap, a historic feature refers to "features that still exist or of which traces are observable, and that are of historic interest, or where the feature class is generally of historical interest". We only used historic polygons if the name tag is also not null.OpenStreetMap®is open data, licensed under theOpen Data Commons Open Database License(ODbL) by theOpenStreetMap Foundation(OSMF). Additional credit to OSM contributors. Read more onthe OSM copyright page. Select USVI historic districts: Polygon boundaries for the Christiansted National Historic District on St. Thomas and Charlotte Amalie Historic and Architectural Historic District on St. Croix, provided by Nikita Beck with the University of the Virgin Islands on 3-6-2023 (contact nikita.beck@uvi.edu for more information) Mapping Steps Identify urban areas using the following classes from 2020 LANDFIRE EVT: Developed-High Intensity, Developed-Low Intensity, Developed-Medium Intensity, Developed-Open Space, Developed-Roads. Classify all urban pixels as 1 and all other pixels as 0. Calculate the percent urban in a 270 m radius circle for each pixel using the Focal Statistics tool in ArcGIS. Since the LANDFIRE data resolution is 30 m, 270 m (9 pixels) approximates a 250 m radius. Retain all pixels that are <50% urban within a 270 m radius. Create a historic places layer by combining the following vector datasets as follows:Buffer National Register point data from the Puerto Rico SHPO by 100 m. Combine National Register polygons from the Puerto Rico SHPO, select USVI historic districts, and OpenStreetMap polygons. Only use OpenStreetMap polygons if both the historic and name columns are null. Buffer the polygons by 30 m. Buffer line data from the Puerto Rico SHPO by 30 m. Merge all buffered point, polygon, and line data into one layer and convert to a 30 m raster representing historic places. Use the historic places raster to remove areas that fall outside of the historic places. Reclassify the above raster into 3 classes, seen in the final indicator values below. Clip to the Caribbean Blueprint 2023 subregion. As a final step, clip to the spatial extent of Southeast Blueprint 2023. Note: For more details on the mapping steps, code used to create this layer is available in theSoutheast Blueprint Data Downloadunder > 6_Code. Final indicator values Indicatorvaluesareassignedasfollows: 2 = Historic place with nearby low-urban buffer 1 = Historic place with nearby high-urban buffer 0 = Not identified as a historic place Known Issues There are likely spatial mapping errors for some of the historic areas. Some historic areas with cultural importance are not captured in the National Register of Historic Places. The approach to measuring urban development doesn't capture degradation to historic places that were historically in larger cities (e.g., courthouses and other downtown buildings). It also doesn't distinguish between historic places that have always been urban and historic places that used to be low-urban. This layer likely underrepresents some historic areas in the U.S. Virgin Islands compared to Puerto Rico because we were unable to incorporate historic places data from the USVI SHPO during the timeline of this Blueprint update. As a result, some sites on the National Register of Historic Places are not depicted in this indicator. OpenStreetMap is a crowdsourced dataset. While members of the OpenStreetMap community often verify map features to check for accuracy and completeness, there is the potential for spatial errors (e.g., misrepresenting the boundary of a historic site) or incorrect tags (e.g., labelling an area as a historic site that does not have historic value). However, using a crowdsourced dataset gives on-the-ground experts, Blueprint users, and community members the power to fix errors and add new historic sites to improve the accuracy and coverage of this indicator in the future. Because open water is considered a non-urban landcover for the purposes of this analysis, this indicator is likely overprioritizing some urbanized historic areas that are close to water, such as marinas and bridges. Disclaimer: Comparing with Older Indicator Versions There are numerous problems with using Southeast Blueprint indicators for change analysis. Please consult Blueprint staff if you would like to do this (email hilary_morris@fws.gov). Literature Cited OpenStreetMap. Historic. Data extracted through Geofabrik downloads. Accessed March 14, 2023. [https://wiki.openstreetmap.org/wiki/Key:historic]. LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey. Published August 1, 2022. LANDFIRE 2020 Existing Vegetation Type (EVT) Puerto Rico US Virgin Islands. LF 2020, raster digital data. Sioux Falls, SD. [https://www.landfire.gov].UNESCO (2012) Operational Guidelines for the Implementation of the World Heritage Convention [1]. UNESCO World Heritage Centre. Paris. Page 14. [https://whc.unesco.org/archive/opguide12-en.pdf].
- Creator
- {'name': 'Department of the Interior'}
- Temporal Coverage
- Last modified 2024-10-09
- Date Issued
- 2023-09-25
- Rights
- The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee. As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.
- Access Rights
- Public
- Format
- Imagery
- Language
- English
- Date Added
- October 26, 2024
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Citation
{'name': 'Department of the Interior'} (2023). Caribbean Low-Urban Historic Landscapes (Southeast Blueprint Indicator) [U.S. Fish and Wildlife Service]. . https://gis-fws.opendata.arcgis.com/content/fws::caribbean-low-urban-historic-landscapes-southeast-blueprint-indicator-2023 (imagery) -
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