San Francisco Vegetation (GGNRA, 2009)

High resolution vegetation polygons mapped by the National Park Service. The vegetation units of this map were determined through stereoscopic interpretation of aerial photographs supported by field sampling and ecological analysis. The vegetation boundaries were identified on the photographs by means of the photographic signatures and collateral information on slope, hydrology, geography, and vegetation in accordance with the Standardized National Vegetation Classification System (October 1995). The mapped vegetation primarily reflects conditions that existed during 1994 and 1995. Several sets of aerial photography were utilized for this project: 1) NOAA 1:24,000 March 1994 Natural Color Prints (Leaf Off) covering...

Tags: accuracy assessment, aerial photography, alliances, associations, community association, All tags... digital orthophoto, digital spatial database, doq, doqq, field data, flight line, gis, gps, habitat mapping, inventory projects, landcover, landscape, national park, national park service inventory, national vegetation classification standard, national vegetation classification system, nvcs, orthophoto, plots, u.s. national vegetation classification, usnvc, usnvcs, vegetation inventory, vegetation inventory report, vegetation map report, vegetation mapping, vegetation plots, Fewer tags

San Juan Island National Historical Park Vegetation Mapping Project - Spatial Vegetation Data

The National Park Service (NPS) Vegetation Inventory Program (VIP) is an effort to classify, describe, and map existing vegetation of national park units as part of generating baseline data products for the NPS Natural Resources Inventory and Monitoring Program. Plot data were collected during field visits to SAJH during the summer of 2010 and spring of 2011. Vegetation polygons were initially developed using aerial photography within ArcGIS. These polygons were modified based on field work conducted during the summer of 2010 and spring of 2011. The small extent of the park allowed classification data collection to occur simultaneously with field-based mapping. Prior to conducting field visits, existing vegetation...

Tags: Land Use / Cover, NCCN, National Vegetation Classification Standard, North Coast and Cascades Network Network, SAJH, All tags... San Juan Island National Historical Park, San Juan Islands, Vegetation, Washington, accuracy assessment, biota, validation, vascular plants, vegetation, vegetation alliance, vegetation classification, vegetation communities, vegetation mapping, vegetation plots, vegetation polygons, Fewer tags

Locations of Fire Promoting Alien Plants Across the Islands of Hawaii Based on Field Surveys and Museum Collections from 1903-2023

Previous research identified species of invasive plants in Hawai'i which are highly flammable and act as fuels in wildfires across Hawai'i. This work aimed to map the distribution of these species (largely grasses) around the islands of Hawai'i with the goal of using the locations for species distribution modeling. All data represents presence data, no absence data were recorded. Data are largely from within the past 20 years, but some georeferenced herbarium specimens go as far back as 1905. Data were obtained from georeferenced herbarium specimens, vegetation plot data, citizen science data (iNaturalist) reviewed by the authors, and data from roadside surveys conducted as part of this research to map these species....

Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hawaii, biota, gorse, grass, herbarium, All tags... vegetation, vegetation plots, Fewer tags