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| Value | Definition |
|---|---|
| Dunegrass | Plant communities dominated by Leymus mollis (American dunegrass) with generally high diversity of forb species. |
| Emergent marsh transition | Plant assemblages including relatively pure emergent marsh transition plants such as Juncus spp. (rushes), Carex spp. (sedges), Potentilla anserina (Pacific silverweed), Rumex salicifolius (willow dock), and Eleocharis palustris (spike rush). In addition, this vegetation cover type includes vegetation that typically occurs between the narrow bands of emergent marsh transition vegetation that are subject to regular and relatively large tidally-driven water level fluctuations and patches of riparian shrub or riparian forest that typically are inundated by river flooding vs. tidal fluctuations. |
| Mixed pioneer vegetation | Generally sparse cover of early colonizing taxa adapted to highly disturbed, high light conditions that may also be nutrient-poor or salty. |
| Mixed riparian forest | Mature forests composed of deciduous and coniferous trees with shrub understory. Common overstory trees include Acer macrophyllum (bigleaf maple), Populus balsamifera ssp. trichocarpa (black cottonwood), Alnus rubra (red alder), Pseudotsuga menziesii (Douglas-fir), Thuja plicata (western red cedar), and Abies grandis (grand fir). |
| Riparian shrub | Plant assemblages characterized by high shrub cover, including: Rosa nutkana (Nutka rose), Rosa pisocarpa (clustered wild rose), Crataegus douglasii (black hawthorne), Lonicera involucrata (black twinberry), Malus fusca (Pacific crab apple), Oemleria cerasiformis (Indian-plum), Rubus spectabilis (salmonberry), and Symphoricarpos albus (common snowberry). |
| Roads, residential structures and yards, upland veg | Disturbed land dominated by anthropogenic activities and structures. |
| Willow-alder forest | Young deciduous forest composed primarily of Salix spp. (willow species) and Alnus rubra (red alder). |
| Range of values | |
|---|---|
| Minimum: | 39.8415665794 |
| Maximum: | 4756.98704749 |
| Units: | meter |
| Range of values | |
|---|---|
| Minimum: | 72.7148463232 |
| Maximum: | 169424.490931 |
| Units: | square meter |
NPS, USGS
Data were collected/produced to monitor and assess changes to coastal habitats during dam removal on the Elwha River, Clallam County, WA, USA.
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Are there legal restrictions on access or use of the data?Access_Constraints: None.
Use_Constraints:USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and the National Park Service as the originator(s) of the dataset and in products derived from these data.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
| Data format: | Zip file contains the shapefile and accompanying files, as well as associated metadata. in format Shapefile Size: 0.041 |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalog/file/get/591ccd87e4b0a7fdb43deeda https://doi.org/10.5066/F75B00N4 |
The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap SHP.