Data
This page documents and explains the new datasets created by the Riparian Condition Assessment Tool (RCAT).
Inputs
| Layer | Data Type | Description | Source |
|---|---|---|---|
| existing_veg | GeoTiff | Landfire Existing Vegetation Type (EVT) raster | Riverscapes Context |
| historic_veg | GeoTiff | Landfire BioPhysical Settings (BPS) raster | Riverscapes Context |
| hillshade | GeoTiff | Hillshade raster derived from DEM | Riverscapes Context |
| pitfill | GeoTiff | Digital Elevation Model with TauDEM 'Pit Remove' algorithm applied to it | TauDEM |
| igo | Geopackage Feature Class | Integrated Geographic Object (IGO) points produced by Anthropogenic Context | Anthropogenic Context |
| dgo | Geopackage Feature Class | Discrete Geographic Object (DGO) polygons produced by Anthropogenic Context | Anthropogenic Context |
| reaches | Geopackage Feature Class | Stream netork lines produced by Anthropogenic Context | Anthropogenic Context |
| canals | Geopackage Feature Class | Lines representing canal features | Riverscapes Context |
| roads | Geopackage Feature Class | Lines representing the road network | Riverscapes Context |
| rails | Geopackage Feature Class | Lines representing railroad tracks | Riverscapes Context |
| valley_bottom | Geopackage Feature Class | Full valley bottom extent | VBET |
| flowareas | Geopackage Feature Class | Polygons representing larger rivers | Riverscapes Context |
| waterbodies | Geopackage Feature Class | Polygons representing lakes, ponds, and reservoirs | Riverscapes Context |
Data Layers Created by RCAT
Intermediates
Existing Riparian Vegetation Cover
This dataset is a binary reclassification of the LandFire EVT raster. Cells in the EVT raster that are
classified as "Riparian" in the EVT Physiognomy EVT_PHYS field are assigned a value of 1, and all
other cells are assigned a value of 0.
Historic Riparian Vegetation Cover
This dataset is a binary reclassification of the LandFire BPS raster. Cells in the BPS raster that are
classified as "Riparian" in the GROUPVEG field, a coarse categorization of vegetation types, are
assigned a value of 1, and all other cells are assigned a value of 0.
Existing Vegetation Cover
This dataset is a binary reclassification of the LandFire EVT raster. Cells in the EVT raster that are classified as any sort of vegetation (grass, shrub, woody, etc.) are assigned a value of 1, and all other cells (e.g., developed, barren rock, ice, open water, etc.) are assigned a value of 0.
Historic Vegetation Cover
This dataset is a binary reclassification of the LandFire BPS raster. Cells in the BPS raster that are classified as any type of vegetation (grass, shrub, woody, etc.) are assigned a value of 1, and all other cells (e.g., barren rock, ice, open water, etc.) are assigned a value of 0.
Vegetation Conversion
This is a raster dataset that represents conversion from one vegetation type to another between the BPS and EVT LandFire rasters (i.e., from historic conditions to the present). Broad vegetation types, such as conifer, shrub, riparian, etc. are given a conversion ID in both the EVT and BPS rasters. The codes from the EVT raster are subtracted from the codes in the BPS raster, resulting in unique conversion ID values.
D8 Flow Directions
D8 Flow directions calculated using TauDEM from input pitfilled DEM.
Floodplain Accessibility
This is a raster dataset that attempts to estimate floodplain accessibility using an automated algorithm. A D-8 flow direction raster is first generated from a pit-filled DEM. Then, for each cell that begins within the valley bottom, flow directions are traced downstream. If that tracing reaches the drainage network, all of the associated cells are coded as 1 for connected. If instead, the tracing reaches some sort of infrastructure first, all associated cells are coded as 0 for disconnected.
Outputs
RCAT IGOs
IGOs attributed with values for rcat analyses calculated within a single DGO or an aggregation of DGOs.
RCAT Reaches
NHD Flowlines attributed with values for rcat analyses.
RCAT DGOs
DGOs attributed with values for rcat analyses within the DGO extent.
Output Attributes
Channel Network Outputs (vwReaches)
| Field | Units | Description |
|---|---|---|
ReachID | NA | Unique identifier for each reach |
FCode | NA | NHD FCode for each reach |
ReachCode | NA | Unique identifier for each reach from the NHD attributes |
NDHPlusID | NA | Unique identifier for each reach in the NHDPlus dataset used to join value added attributes |
StreamName | NA | The name of the stream |
level_path | NA | Unique identifier for each individual stream from headwater to outlet from the NHD attributes |
TotDASqKm | km2 | Total upstream contributing drainage area |
DivDASqKm | km2 | Total drainage area partitioned among diversions, side channels, etc. |
WatershedID | NA | Unique identifier for each watershed (the 10-digit hydrologic unit code) |
ownership | NA | Dominant ownership of the reach (e.g. private, public, tribal) |
divergence | NA | An integer code from NHD attributes indicating channel divergence and type of divergence |
stream_order | NA | Strahler stream stream order |
us_state | NA | The state in which the reach is located |
ecoregion_iii | NA | Level III ecoregion from the EPA |
ecoregion_iv | NA | Level IV ecoregion from the EPA |
iPC_LU | NA | The land use intensity within the valley bottom adjacent to the reach ranging from 0 (natural land cover) to 100 (urban land cover) |
FloodplainAccess | unitless | Proportion of the floodplain associated with the reach that is accessible to the stream (0-1) |
FromConifer | unitless | Proportion of the riverscape associated with the reach that changed from conifer historically to riparian vegetation (0-1) |
FromDevegetated | unitless | Proportion of the riverscape associated with the reach that changed from bare or unvegetated cover historically to riparian vegetation (0-1) |
FromGrassShrubland | unitless | Proportion of the riverscape associated with the reach that changed from grass or shrubland historically to riparian vegetation (0-1) |
NoChange | unitless | Proportion of the riverscape associated with the reach that was riparian historically and remains riparian (0-1) |
GrassShrubland | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to grass or shrubland (0-1) |
Devegetation | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to bare or unvegetated cover (0-1) |
Conifer | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to conifer (0-1) |
Invasive | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to invasive species (0-1) |
Development | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to developed land (0-1) |
Agriculture | unitless | Proportion of the riverscape associated with the reach that was riparian vegetation historically that has been converted from riparian to agriculture (0-1) |
NonRiparian | unitless | Proportion of the riverscape associated with the reach that has experienced non-riparian conversion (i.e., from one upland community to another) (0-1) |
ExistingRiparianMean | unitless | Proportion of the riverscape associated with the reach that currently has riparian cover (0-1) |
HistoricRiparianMean | unitless | Proportion of the riverscape associated with the reach that had riparian cover historically (0-1) |
RiparianDeparture | unitless | Fraction of historic riparian cover that exists now (ExistingRiparianMean / HistoricRiparianMean). In small, headwater streams where vegetation can't be meaningfully sampled, this is overridden with a nodata value |
Condition | NA | The overall condition of the reach based on the three lines of evidence (land use intensity, riparian vegetation departure, and floodplain accessibility) (0-1) |
ConversionType | NA | Dominant type of riparian conversion in the riverscape associated with the reach |
Departure | NA | Categorical classification of riparian departure |
Riverscape Network Outputs (vwDgos/vwIgos)
| Field | Units | Description |
|---|---|---|
IGODID/DGOID | NA | Unique identifier for each riverscape polygon or point |
FCode | NA | NHD FCode of the dominant reach in the riverscape segment |
level_path | NA | Unique identifier for each individual stream from the NHD attributes associated with the riverscape polygon or point |
seg_distance | m | Distance along a given level_path. In combination with level_path, this provides a unique identifier for each riverscape polygon or point |
stream_size | NA | Categorical classification of stream size from 0 (small, headwater streams) to 4 (large continental rivers) |
centerline_length | m | (DGOs) Length of the centerline (m) of the riverscape polygon (riverscape network length) |
LUI | NA | Land use intensity averaged across the DGO or moving window, ranging from 0 (natural land cover) to 100 (urban land cover) |
FloodplainAccess | unitless | Proportion of the DGO or moving window that is accessible to the stream (0-1) |
FromConifer | unitless | Proportion of the DGO or moving window that changed from conifer historically to riparian vegetation (0-1) |
FromDevegetated | unitless | Proportion of the DGO or moving window that changed from bare or unvegetated cover historically to riparian vegetation (0-1) |
FromGrassShrubland | unitless | Proportion of the DGO or moving window that changed from grass or shrubland historically to riparian vegetation (0-1) |
NoChange | unitless | Proportion of the DGO or moving window that was riparian historically and remains riparian (0-1) |
GrassShrubland | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to grass or shrubland (0-1) |
Devegetation | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to bare or unvegetated cover (0-1) |
Conifer | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to conifer (0-1) |
Invasive | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to invasive species (0-1) |
Development | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to developed land (0-1) |
Agriculture | unitless | Proportion of the DGO or moving window that was riparian vegetation historically that has been converted from riparian to agriculture (0-1) |
NonRiparian | unitless | Proportion of the DGO or moving window that has experienced non-riparian conversion (i.e., from one upland community to another) (0-1) |
ExistingRiparianMean | unitless | Proportion of the DGO or moving window that currently has riparian cover (0-1) |
HistoricRiparianMean | unitless | Proportion of the DGO or moving window that had riparian cover historically (0-1) |
RiparianDeparture | unitless | Fraction of historic riparian cover that exists now (ExistingRiparianMean / HistoricRiparianMean). In small, headwater streams where vegetation can't be meaningfully sampled, this is overridden with a nodata value |
Condition | NA | Overall condition of the reach based on the three lines of evidence (land use intensity, riparian vegetation departure, and floodplain accessibility) (0-1) |
ConversionType | NA | Dominant type of riparian conversion in the DGO or moving window |
Departure | NA | Categorical classification of riparian departure |