Wave Pattern

Wave Pattern

VBET Metrics

vbet_areas

DGO/IGO Fields

Field	Data Type	Units	Description
`level_path`*	TEXT	N/A	Unique identifier for a given stream from where it begins to where it ends
`seg_distance`	REAL	Meters	Distance along a given level_path. The combination of level path and seg_distance uniquely identifies a DGO/IGO
`segment_area`	REAL	Square meters	Area of the DGO
`centerline_length`	REAL	Meters	Length of the centerline of the DGO/analysis window
`window_area`	REAL	Square meters	Area of the analysis window (a group of DGOs)
`FCode`*	INTEGER	N/A	A code representing the flow type (e.g., perennial, intermittent, ephemeral) for the main flowline within the DGO/analysis window

These fields are NHD fields that are used by default, but in custom runs utlizing different datasets can be substituted for other field names.

Metrics

The following metrics are calculated individually for each DGO polygon and/or within an analysis window (comprised of several DGOs) and attributed to the corresponding IGO point.

Field	Metric	Data Type	Units	Description
`active_channel_area`	Active Channel Area	REAL	Square meters	Total area of active channel within the DGO/analysis window
`active_channel_prop(ortion)`	Active Channel Proportion	REAL	Ratio	Proportion of DGO/analysis window that is active channel
`floodplain_area`	Floodplain Area	REAL	Square meters	Total area of floodplain (valley bottom - active channel) within the DGO/analysis window
`floodplain_prop(ortion)`	Floodplain Proportion	REAL	Ratio	Proportion of DGO/analysis window that is floodplain
`low_lying_floodplain_area`	Low-Lying Floodplain Area	REAL	Square meters	Total area of low-lying floodplain within the DGO/analysis window
`low_lying_floodplain_prop(ortion)`	Low-Lying Floodplain Proportion	REAL	Ratio	Proportion of DGO/analysis window that is topographically low-lying floodplain
`elevated_floodplain_area`	Elevated Floodplain Area	REAL	Square meters	Total area of elevated Floodplain within the DGO/analysis window
`elevated_floodplain_prop(ortion)`	Elevated Floodplain Proportion	REAL	Ratio	Proportion of DGO/analysis window that is elevated floodplain
`integrated_width`	Integrated Width	REAL	Meters	Integrated width calculated as window_area / centerline length (average width of the DGO/analysis window)
`active_channel_itgr_width`	Active Channel Integrated Width	REAL	Meters	Active channel area divided by centerline length within the DGO/analysis window (average width of active channel)
`floodplain_itgr_width`	Floodplain Integrated Width	REAL	Meters	Floodplain area divided by centerline length within the DGO/analysis window (average width of floodplain)
`vb_acreage_per_mile`	Valley Bottom Acreage per Mile	REAL	acres/mile	Window area converted to acres and divided by centerline length converted to miles
`vb_hectares_per_km`	Valley Bottom Hectares per Kilometer	REAL	hectares/km	Window area converted to hectares and divided by centerline length converted to kilometers
`low_lying_floodplain_itgr_width`	Low-Lying Floodplain Integrated Width	REAL	Meters	Low-lying floodplain area divided by centerline length within the DGO/analysis window (average width of low-lying floodplain)
`elevated_floodplain_itgr_width`	Elevated Floodplain Integrated Width	REAL	Meters	Elevated floodplain area divided by centerline length within the DGO/analysis window (average width of elevated floodplain)
`low_lying_acreage_per_mile`	Low-Lying Acreage per Mile	REAL	acres/mile	Low-lying floodplain area converted to acres and divided by centerline length converted to miles
`low_lying_hectares_per_km`	Low-Lying Hectares per Kilometer	REAL	hectares/km	Low-lying floodplain area converted to hectares and divided by centerline length converted to kilometers
`elevated_acreage_per_mile`	Elevated Acreage per Mile	REAL	acres/mile	Elevated floodplain area converted to acres and divided by centerline length converted to miles
`elevated_hectares_per_km`	Elevated Hectares per Kilometer	REAL	hectares/km	Elevated floodplain area converted to hectares and divided by centerline length converted to kilometers