44033
ESI.AAT
ESI.AAT
Entity
Published / External
40475
North Slope, Alaska ESI: ESI (Environmental Sensitivity Index Shoreline Types - Lines and Polygons)
Data Set
Completed
The ESI.AAT table contains attribute information for the vector lines representing linear shoreline features with ESI classification. | Description Source: Research Planning, Inc.
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
ESI
VARCHAR
No
No
Active
The item ESI contains values representing the ESI shoreline type. In many cases, shorelines are ranked with multiple codes, such as "6B/3A" (listed landward to seaward from left to right). The first code, "6B", is the most landward shoreline type and the second code, "3A", is the shoreline type closest to the water. Singular shoreline types are listed below. No multiple codes are listed, but all multiple codes included in the data set can be assembled from the codes described.The ESI rankings progress from low to high susceptibility to oil spills. To determine the sensitivity of a particular intertidal shoreline habitat, the following factors are integrated: (1) Shoreline type (substrate, grain size, tidal elevation, origin); (2) Exposure to wave and tidal energy; (3) Biological productivity and sensitivity; (4) Ease of cleanup. Prediction of the behavior and persistence of oil in intertidal habitats is based on an understanding of the dynamics of the coastal environments, not just the substrate type and grain size. The intensity of energy expended upon a shoreline by wave action, tidal currents, and river currents directly affects the persistence of stranded oil. The need for shoreline cleanup activities is determined, in part, by the slowness of natural processes in removal of oil stranded on the shoreline. The potential for biological injury, and ease of cleanup of spilled oil are also important factors in the ESI ranking. Generally speaking, areas exposed to high levels of physical energy, such as wave action and tidal currents, and low biological activity rank low on the scale, whereas sheltered areas with associated high biological activity have the highest ranking. | Description Source: Research Planning, Inc.
1A: Exposed Rocky Shores | 1B: Exposed, Solid Man-made Structures | 3A: Fine- to Medium-grained Sand Beaches | 3C: Tundra Cliffs | 4: Coarse-grained Sand Beaches | 5: Mixed Sand and Gravel Beaches | 6A: Gravel Beaches | 6B: Riprap | 7: Exposed Tidal Flats | 8A: Sheltered Rocky Shores and Sheltered Scarps in Mud or Clay | 8E: Peat Shorelines | 9A: Sheltered Tidal Flats | 9B: Sheltered, Vegetated Low Banks | 10A: Salt- and Brackish-water marshes | 10E: Inundated Low-lying Tundra | U: Unranked |
2
LINE
VARCHAR
No
No
Active
Type of geographic feature. | Description Source: Research Planning, Inc.
F: Flat | H: Hydrography | S: Shoreline |
3
SOURCE_ID
VARCHAR
No
No
Active
Data source of the ESI lines. | Description Source: Research Planning, Inc.
1: Digital line graph (USGS) | 2: Low-altitude overflight field sketches and oblique photography | 5: Digitized from scanned 1:63,360-USGS topographic quadrangle | 9: Alaska Department of Natural Resources coastline (cst63) |
4
ENVIR
VARCHAR
No
No
Active
Type of regional environment. | Description Source: Research Planning, Inc.
E: Estuarine | U: Unranked |
gov.noaa.nmfs.inport:44033
Tyler Christensen
2017-04-06T11:37:22
SysAdmin InPortAdmin
2022-08-09T17:11:27
2017-08-07
Office of Response and Restoration
ORR
1002
Public
No
2017-08-07
1 Year
2018-08-07