This dataset contains ADFG-Sport Fish survey points associated with various stream habitat surveys conducted throughout Alaska. This dataset is available for any other AK Hydro partner agencies wanting to include/record survey information/observations in the state hydrography database. All survey points were spatially captured in the field using hand-held consumer grade GPS units and were associated with aquatic habitat or riparian input features (e.g., stream confluences, stream reach breaks, barriers of multiple types, etc) encountered during habitat surveys and assessments.
- The “OBJECTID” attribute is a system default that provides a unique ID for each record in the dataset.
- The “RevDate” attribute indicates the date when a record was updated or changed.
- The “SourceAgency” attribute indicates the agency responsible for changing a particular record – the range of values for this attribute is controlled by the “Agency” domain.
- The “WaypointID” attribute represents a unique 10 character code identifying an individual GPS waypoint collected in the field. The unique code is combination of codes found in both PROJCODE and SURVIDENT attributes which (attributes not described here) are used internally by ADFG. Original field name used by ADFG was WHOLEID.
- The “WaypointCode” attribute indicates the feature of interest observed in the field that is associated with each GPS waypoint. This field was initially identified as WPFEATCODE for ADFG internal purposes and contained 3-character codes which identified the feature of interest. The range of values for this attribute is controlled by the “WaypointCode” domain.
- The “SurveyDate” attribute indicates the date that a GPS waypoint was captured in the field and thus represents the date that a feature of interest was observed in the field.
- The “GPSError” attribute indicates the estimated positional margin of error in meters (as identified on the GPS unit) associated with individual GPS waypoints captured in the field.
- The “Datum” attribute indicates the geographic datum that the GPS waypoint was captured in or converted to – NAD83/WGS84 are were the standard used for all points.
- The “Locator” attribute indicates the relationship of the feature of interest to the stream course (always noted in downstream orientation) and identified with a 2-character code (e.g., RB=right bank; LB=left bank; BB=both banks; SS=spans stream width). The range of values for this attribute is controlled by the “Locator” domain.
- The “MacroHabitat” attribute indicates the type of aquatic macro-habitat associated with the feature/GPS waypoint and identified with a 3-character code (e.g., BPM=beaver pond margin; MCH=main channel; SCH=side channel; SLO=slough); generally identifies where on a stream network a feature of interest was observed. The range of values for this attribute is controlled by the “MacroHabitat” domain.
- The “Comments” attribute contains any notable remarks that the editor wants communicated with a particular record.
- The “GlobalID” attribute provides a unique ID for each record in the dataset and is required for each versioned dataset that participates in a replication scheme
- The “SHAPE” attribute is a system default that identifies the type of feature geometry for each record.