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High-Resolution Land Cover, Commonwealth of , Chesapeake Bay Watershed and Delaware River Basin, 2013 [Pennsylvania] {2016}

University of Vermont Spatial Analysis Laboratory · 2016 Full Details

Full Details

Title
High-Resolution Land Cover, Commonwealth of , Chesapeake Bay Watershed and Delaware River Basin, 2013 [Pennsylvania] {2016}
Description
High-resolution land cover dataset for the Commonwealth of Pennsylvania. Twelve land cover classes were mapped:0 - Background1 - Water2 - Emergent Wetlands3 - Tree Canopy4 - Scrub/Shrub5 - Low Vegetation6 - Barren7 - Structures8 - Other Impervious Surfaces9 - Roads10 - Tree Canopy over Structures11 - Tree Canopy over Other Impervious Surfaces12 - Tree Canopy over RoadsThe complete class definitions and standards can be viewed at the link below.http://goo.gl/THacggThe primary sources used to derive this land-cover layer were 2006-2008 leaf-off LiDAR data, 2005-2008 leaf-off orthoimagery, and 2013 leaf-on orthoimagery. Ancillary data sources such as LiDAR-derived breaklines for roads and hydrology were used to augment the land-cover mapping. This land-cover dataset is considered current based on data of acquisition for the leaf-on orthoimagery. Land-cover class assignment was accomplished using a rule-based expert system embedded within an object-based framework. Object-based image analysis techniques (OBIA) work by grouping pixels into meaningful objects based on their spectral and spatial properties, while taking into account boundaries imposed by existing vector datasets. Within the OBIA environment a rule-based expert system was designed to effectively mimic the process of manual image analysis by incorporating the elements of image interpretation (color/tone, texture, pattern, location, size, and shape) into the classification process. A series of morphological procedures were employed to insure that the end product is both accurate and cartographically pleasing. Following the automated OBIA mapping a detailed manual review of the dataset was carried out at a scale of 1:3000 and all observable errors were corrected.This dataset was developed to support land-cover mapping and modeling initiatives in the Chesapeake Bay Watershed and Delaware River Basin. At the time of its publication, it represented the most accurate and detailed land cover map for the Pennsylvania portion of the Chesapeake Bay Watershed
Creator
University of Vermont Spatial Analysis Laboratory
Date Issued
2016
Access Rights
Public
Format
File
Language
English
Date Added
February 22, 2023

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  • Citation
    University of Vermont Spatial Analysis Laboratory (2016). High-Resolution Land Cover, Commonwealth of , Chesapeake Bay Watershed and Delaware River Basin, 2013 [Pennsylvania] {2016}. . https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=3193 (dataset)
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