Atmospheric/Climate data pertain to physical characteristics of the earth's
upper and lower atmosphere and space environment, including climate and
weather. For example, clouds, wind, precipitation, temperature, humidity,
and solar radiation data layers are stored under ATM.
Boundaries and other defined areas are polygons delineating a political,
jurisdictional, thematic, functional or categorical distinct area. This
includes all geo-political boundaries (Country, State, County, City);
all other governmental boundaries (BLM, Forest Service, DOE, Tribal, borough,
neighborhood); jurisdictional boundaries like emergency response or police
jurisdictions; functional or categorical areas like soil and water conservation
districts, wildfire incident boundaries, voting or school districts; and
institutional or managerial-defined areas like loading, staging, process
or recreation areas and other distinct areas that don't fit in any other
specific thematic group. Watersheds and biomes, while categorically distinct,
belong directly to the specific thematic categories HYD and ECO, respectively.
Ecological information is data characterizing the distribution of ecological,
faunal, or vegetational attributes or phenomena, including wildfire (i.e.
Cerro Grande). Includes vegetation, potential vegetation, and habitat
distributions; species range distributions; and biome, ecotonal, or eco-physiographic
Environmental monitoring data relate to sampling sites or data for environmental
characterization or regulatory compliance that pertain to anthropogenic
factors or constituents. This includes locations or distributions of hazardous
or toxic materials, point and non-point sources of various pollutants,
natural or manmade allergens, water and air quality sampling stations,
and areal extent or storage of any of the previous, such as waste management
and material disposal areas.
Geologic data, including surface and subsurface data, are points, arcs,
or polygons representing geologic features or phenomena. Generally, this
includes the location or delineation of areas 1) with particular geologic
characteristics, such as composition or age based on physical structure,
macro-texture, shape or form and/or 2) representing interactions with
physical, surface or near-surface processes (e.g., biogenic soil formation
and sediment transport via surface water, wind, or ice). This may include
the relationships of predominately exposed and subsurface rocks. This
can also include processes or products, historical categorization, and
surficial physical geography (to include topography) that are associated
with geologic or geographic features. This also includes soils,
defined as the distribution of unconsolidated material above bedrock and/or
the natural medium for plant growth.
Hydrology data are points, arcs, or polygons representing the location,
or linear or areal distribution of any hydrographic or hydrologic surface
or subsurface feature, property, or compositional makeup. This includes
surface springs, ephemeral or perennial streams or other surface drainage
features, as well as subsurface features such as aquifers. Wells, while
not strictly a hydrographic feature, are included since they commonly
provide important information about subsurface water quality, water bearing
strata, subsurface potentiometric elevations and other hydrologic information.
Hypsography/Topography data characterize the elevation of the earth's
surface. This includes points, arcs, polygons, and grids that represent
the distribution of the absolute or relative areas of the earth's solid
surface in elevations above, or below, a given datum, usually sea level.
This category includes LIDAR, DEMs (Digital Elevation Models), and various
remotely sensed data that characterize elevation.
Imagery data are two-dimensional data representation including aerial
photos, orthophotos, multi-spectral output, and other remotely sensed
data. These data have not been classified or interpreted. An example of
classified data involves combining various spectral bands to produce a
vegetation data layer. Images for each of the multi-spectral bands are
located under IMG. The vegetation data layer is located under ECO.
Infrastructure data are points, arcs and polygons as well as data that
support the maintenance of a facility or facilities, roads, trails, railroads,
or other vehicular or pedestrian transportation networks, or an essential
public service, utility, or commodity. This includes facilities
that provide access, safety, hazard mitigation, and an enjoyable and aesthetic
workplace for employees, other workers, and the visiting public to the
facility. Generally associated with an engineering department or division,
this includes buildings and structures; guard rails, ramps and handicap
access; landscaping features; fences, gates and pads; and the location
of safety equipment such as fire extinguishers and chemical showers (does
not include monitoring stations or equipment). This category includes
public utility features such as water, sewer, electric, phone and gas
service lines, boxes, or substations. The category also includes
stormwater or surface drainage, sewage lagoons and other settling or evaporation
pits or ponds designed to treat sanitary or non-toxic municipal waste
or industrial waste.
Regulatory data are points and polygons that locate or demark areas at,
or in which, some activity is governed by a governmental or legal regulation
or law. Includes Potential Release Sites (PRSs), disposal pits, outfalls,
and Material Disposal Areas (MDAs).
Geographical reference data are points, arcs/grids, polygons that provide
some reference point or system to aid in mapping the surface of the earth.
Examples include horizontal and/or vertical geodetic control points, USGS
standard map series grids (7.5 and 15 degree quadrangles), and the Bureau
of Land Management Public Land Survey (PLS) system.