Navigate NLDI

Navigate the Network Linked Data Index network.

navigate_nldi(
  nldi_feature,
  mode = "upstreamMain",
  data_source = "flowlines",
  distance_km = 10
)

Arguments

nldi_feature

list with names `featureSource` and `featureID` where `featureSource` is derived from the "source" column of the response of get_nldi_sources and the `featureID` is a known identifier from the specified `featureSource`.

mode

character chosen from ("UM", "UT", DM", "DD"). See examples.

data_source

character chosen from "source" column of the response of get_nldi_sources or empty string for flowline geometry.

distance_km

numeric distance in km to stop navigating.

Value

sf data.frame with result

Examples

# \donttest{
library(sf)
library(dplyr)

nldi_nwis <- list(featureSource = "nwissite", featureID = "USGS-05428500")

navigate_nldi(nldi_feature = nldi_nwis,
              mode = "upstreamTributaries")$UT %>%
  st_geometry() %>%
  plot()

navigate_nldi(nldi_feature = nldi_nwis,
              mode = "UM")$UM %>%
  st_geometry() %>%
  plot(col = "blue", add = TRUE)



nwissite <- navigate_nldi(nldi_feature = nldi_nwis,
                          mode = "UT",
                          data_source = "nwissite")$UT_nwissite

st_geometry(nwissite) %>%
  plot(col = "green", add = TRUE)


nwissite
#> Simple feature collection with 3 features and 8 fields
#> Geometry type: POINT
#> Dimension:     XY
#> Bounding box:  xmin: -89.45556 ymin: 43.08944 xmax: -89.36083 ymax: 43.09986
#> Geodetic CRS:  WGS 84
#> # A tibble: 3 × 9
#>   sourceName               identifier  comid measure reachcode name      X     Y
#>   <chr>                    <chr>       <chr>   <dbl> <chr>     <chr> <dbl> <dbl>
#> 1 NWIS Surface Water Sites USGS-05428… 1329…    1.37 07090002… LAKE… -89.4  43.1
#> 2 NWIS Surface Water Sites USGS-05428… 1329…   42.9  07090002… YAHA… -89.4  43.1
#> 3 NWIS Surface Water Sites USGS-43060… 1329…   59.3  07090002… LAKE… -89.5  43.1
#> # ℹ 1 more variable: geometry <POINT [°]>
# }