Help for package StreamCatTools

Type:

Package

Title:

Tools for Working with 'StreamCat' and 'LakeCat' Data

Version:

0.12.0

Date:

2026-09-23

Author:

Marc Weber [aut, cre], Ryan Hill [aut], Selia Markley [aut], Travis Hudson [aut], Allen Brookes [aut], David Rebhuhn [ctb], Michael Dumelle [ctb], Justin Bousquin [ctb], Zachary Smith [ctb]

Maintainer:

Marc Weber <weber.marc@epa.gov>

Description:

Tools for using the 'StreamCat' and 'LakeCat' API and interacting with the 'StreamCat' and 'LakeCat' database. Convenience functions in the package wrap the API for 'StreamCat' on https://api.epa.gov/StreamCat/streams/metrics.

Depends:

R (≥ 4.1.0)

Imports:

sf, hydrogeofetch, jsonlite, httr2, curl (≥ 6.0.0), ggpattern, patchwork, cowplot, tigris, ggplot2, dplyr, tidyr, stringr, tibble,

Suggests:

mapview, testthat, knitr, rmarkdown, devtools, xml2, magrittr, readr, purrr, lifecycle, tidyselect, DBI, duckdb, tictoc, stats, wk

Encoding:

UTF-8

URL:

https://usepa.github.io/StreamCatTools/, https://github.com/USEPA/StreamCatTools

BugReports:

https://github.com/USEPA/StreamCatTools/issues

VignetteBuilder:

knitr

License:

MIT + file LICENSE

NeedsCompilation:

Config/roxygen2/version:

8.1.0

Packaged:

2026-10-02 19:15:33 UTC; mweber

Repository:

CRAN

Date/Publication:

2026-10-02 19:50:09 UTC

Validate COMIDs

Description

Checks user supplied COMIDs against valid COMID values in LakeCat and returns a message if any COMIDs are not valid COMIDs. Called internally by lc_get_data when validate = TRUE.

Checks user supplied COMIDs against valid COMID values in StreamCat and returns a message if any COMIDs are not valid COMIDs. Called internally by sc_get_data when validate = TRUE.

Usage

.parse_comids(comids)

.parse_comids(comids)

Arguments

comids

Integer or character vector of COMIDs to validate. Accepts the same formats as the comid parameter of sc_get_data: a numeric vector, a character vector, or a comma-separated string.

Details

Validation works by querying the NLDI for valid COMIDs with the supplied COMIDs and comparing these COMIDs against those requested. Any COMID absent from the official list is considered invalid — i.e., it does not correspond to an NHDPlusV2 catchment recognized by StreamCat. Additionally, error is raised for any COMIDs that are part of the COMIDs connectors in the Great Lakes that are not included in StreamCat

Value

A character vector of COMIDs from comids that were not found in the StreamCat database. Returns character(0) if all supplied COMIDs are valid.

Author(s)

Marc Weber

Lookup Full Metric Name

Description

Function to retrieve a full metric name based on the short name using the LakeCat API.

Usage

lc_fullname(metric = NULL)

Arguments

metric

Short metric name Syntax: metric=value1 Values: metric

Value

A lookup of the full name for a given LakeCat metric

Author(s)

Marc Weber

Examples

## Not run: 
fullname <- lc_fullname(metric='clay')
## End(Not run)

Get Lake COMIDs

Description

Function to return NHDPlusV2 Waterbody COMIDS using either a dataframe with coordinates and a specified CRS or an sf object. The function generates a vector of NHDPlus Waterbody COMID values a user can then pass to lc_get_data function

Usage

lc_get_comid(
  dd = NULL,
  xcoord = NULL,
  ycoord = NULL,
  crsys = NULL,
  buffer = NULL
)

Arguments

dd

Name of data frame object. Can be a simple data frame with coordinate columns in a known CRS or an sf points data frame

xcoord

The x coordinate column if using a raw data frame

ycoord

The y coordinate column if using a raw data frame

crsys

The epsg code if using a raw data frame

buffer

The amount of buffer to use to extend search for a waterbody (simply passed to hydrogeofetch::get_waterbodies)

Value

A new sf data frame with a populated 'COMID' column

Author(s)

Marc Weber

Examples

## Not run: 

dd <- data.frame(x = c(-89.198,-114.125,-122.044),
y = c(45.502,47.877,43.730))

comids <- lc_get_comid(dd, xcoord='x',
                       ycoord='y', crsys=4269)

dd <- data.frame(x = c(-89.198,-114.125,-122.044),
y = c(45.502,47.877,43.730)) |> 
   sf::st_as_sf(coords = c('x', 'y'), crs = 4326)
   
comids <- lc_get_comid(dd)
 
## End(Not run)

Get LakeCat data

Description

Function to return LakeCat metrics using the StreamCat API. The function allows a user to get specific metric data aggregated by area of interest, returned by comid(s), hydroregion(s), state(s), or county(ies).

Usage

lc_get_data(
  comid = NULL,
  metric = NULL,
  aoi = NULL,
  showAreaSqKm = NULL,
  showPctFull = NULL,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  countOnly = NULL
)

Arguments

comid

Return metric information for specific COMIDs. Can be a comma-delimited list, a character vector, or any object that can be coerced to a comma-delimited list with paste. One of comid, county, state, or region is required unless conus='true'. Syntax: comid=<comid1>,<comid2>

metric

Name(s) of metrics to query. Must be character string with comma-delimited list of metrics. Not case-sensitive. Syntax: name=<name1>,<name2>

aoi

Specify the area of interest described by a metric. By default, all available areas of interest for a given metric are returned. Case-sensitive. Syntax: areaOfInterest=<value1>,<value2> Values: catchment|watershed|

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is false. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

state

Return metric information for COMIDs within a specific state. Use a state's abbreviation to query for a given state. One of comid, county, state, or region is required unless conus='true'. If specified and valid, comid and county are ignored. Case-sensitive. Syntax: state=<state1>,<state2>

county

Return metric information for COMIDs within a specific county. Users must use the FIPS code, not county name, as a way to disambiguate counties. One of comid, county, state, or region is required unless conus='true'. If specified and valid, comid is ignored. Syntax: county=<county1>,<county1>

region

Return metric information for COMIDs within a specified hydroregion. Hydroregions are specified using full name i.e. 'Region01', 'Region03N', 'Region10L' One of comid, county, state, or region is required unless conus='true'. If specified and valid, comid, county, and state are ignored. Case-sensitive. Syntax: region=<regionid1>,<regionid2>

conus

Return all COMIDs in the conterminous United States. Character string (Not case-sensitive) or logical. The default value is false. If true, comid, county, state, and region are ignored. Values: true|false

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A tibble of desired StreamCat metrics. If data are missing for all rows of a given metric, then the column for that metric will not exist. If data are missing for only some rows, then they will be specified with NA.

Author(s)

Marc Weber

Examples

## Not run: 
df <- lc_get_data(comid='23794487', aoi='cat', metric='fert')

df <- lc_get_data(metric='pcturbmd2006', aoi='ws',
comid='24083377')

df <- lc_get_data(metric='pctgrs2006', aoi='ws', region='Region01')

df <- lc_get_data(metric='pctwdwet2006', aoi='ws', county='41003')

df <- lc_get_data(metric='pcturbmd2006', aoi='ws',
comid='24083377', showAreaSqKm=FALSE, showPctFull=TRUE)

df <- lc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid='23783629,23794487,23812618')

df <- lc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid=c('23783629','23794487','23812618'))

df <- lc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid='23783629,23794487,23812618',
countOnly=TRUE)


 
## End(Not run)

Get LakeCat Metric Names

Description

Function to filter LakeCat metrics metrics by category, area of interest, dataset or year. Use 'lc_get_params(categories)' or 'lc_get_params(datasets)' to see all the valid category or dataset options

Usage

lc_get_metric_names(category = NULL, aoi = NULL, year = NULL, dataset = NULL)

Arguments

category

Filter LakeCat metrics based on the metric category

aoi

Filter LakeCat metrics based on the area of interest

year

Filter LakeCat metrics based on a particular year or years

dataset

Filter LakeCat metrics based on the dataset name

Value

A dataframe of metrics and description that match filter criteria

Author(s)

Marc Weber

Examples

## Not run: 
metrics <- lc_get_metric_names(category='Natural')
metrics <- lc_get_metric_names(category = c('Anthropogenic','Natural'),
aoi=c('Cat','Ws'))
## End(Not run)

Get NLCD Data

Description

'r lifecycle::badge("deprecated")' 'lc_nlcd()' was renamed to 'lc_get_nlcd()' to create a more consistent API. Function to specifically retrieve all NLCD metrics for a given year using the StreamCat API.

Usage

lc_get_nlcd(
  year = "2019",
  comid = NULL,
  aoi = NULL,
  showAreaSqKm = NULL,
  showPctFull = NULL,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  countOnly = NULL
)

Arguments

year

Years(s) of NLCD metrics to query. Only valid NLCD years are accepted (i.e. 2001, 2004, 2006, 2008, 2011, 2013, 2016, 2019) Syntax: year=<year1>,<year2>

comid

Return metric information for specific COMIDs Syntax: comid=<comid1>,<comid2>

aoi

Specify the area of interest described by a metric. By default, all available areas of interest for a given metric are returned. Syntax: areaOfInterest=<value1>,<value2> Values: catchment|watershed|riparian_catchment|riparian_watershed|other

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is false. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

state

Return metric information for COMIDs within a specific state. Use a state's abbreviation to query for a given state. Syntax: state=<state1>,<state2>

county

Return metric information for COMIDs within a specific county. Users must use the FIPS code, not county name, as a way to disambiguate counties. Syntax: county=<county1>,<county1>

region

Return metric information for COMIDs within a specified hydroregion. Syntax: region=<regionid1>,<regionid2>

conus

Return all COMIDs in the conterminous United States. The default value is false. Values: true|false

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A tibble of desired StreamCat metrics

Author(s)

Marc Weber

Examples

## Not run: 

df <- lc_get_nlcd(comid='23783629', year='2019', aoi='ws')  # Will show a deprecation warning

df <- lc_get_nlcd(comid='23783629', year='2019', aoi='ws')

df <- lc_get_nlcd(year='2016', aoi='cat',
comid='23783629,23794487,23812618', showAreaSqKm=FALSE, showPctFull=TRUE)

df <- lc_get_nlcd(year='2016', aoi='cat',
comid='23783629,23794487,23812618', countOnly=TRUE)

df <- lc_get_nlcd(year='2016, 2019', aoi='cat,ws',
comid='23783629,23794487,23812618')

## End(Not run)

Get NNI

Description

Function to get all NNI data available for a given year.

Usage

lc_get_nni(
  year,
  aoi = NULL,
  comid = NULL,
  showAreaSqKm = TRUE,
  showPctFull = NULL,
  countOnly = NULL
)

Arguments

year

Years(s) of NNI metrics to query. Only valid NNI years are accepted (1987:2017) Syntax: year=<year1>,<year2>

aoi

Specify the area of interest described by a metric. By default, all available areas of interest for a given metric are returned. Syntax: areaOfInterest=<value1>,<value2> Values: catchment|watershed

comid

Return metric information for specific COMIDs Syntax: comid=<comid1>,<comid2>

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is true. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A tibble of desired StreamCat metrics

Author(s)

Selia Markley

Examples


df <- lc_get_nni(year='1987, 1990, 2005, 2017', aoi='cat,ws',
comid='23783629,23794487,23812618')

df <- lc_get_nni(year='2015', aoi='cat',
comid='23783629', countOnly=TRUE)

df <- lc_get_nni(comid='23783629', year='2011, 2012', aoi='ws')

Get LakeCat Parameters

Description

Function to return available LakeCat parameters using the StreamCat API.

Usage

lc_get_params(param = NULL)

Arguments

param

List of available parameters in the API for the following options: name, areaofInterest, region, state, county. State and county return a data frame that includes FIPS codes, names and state abbreviations Syntax: param=<value1>,<value2> Values: name|area

Value

A list of all the current LakeCat values for a given parameter

Author(s)

Marc Weber

Examples

## Not run: 
params <- lc_get_params(param='variable_info')
params <- lc_get_params(param='metric_names')
params <- sc_get_params(param='categories')
params <- lc_get_params(param='aoi')
params <- lc_get_params(param='state')
params <- lc_get_params(param='county')
params <- sc_get_params(param='datasets')

## End(Not run)

Get LakeCat Lake Watershed

Description

Lookup function for a single COMID from S3 GeoParquet (optionally restricted to one HUC2). Queries one COMID from an S3-hosted, HUC2-partitioned GeoParquet dataset and returns an sf object. If 'huc2' is provided, only that partition is scanned (fastest). If not, the function tries a glob over all HUC2 partitions and falls back to a shallower pattern if needed. The function: - loads DuckDB httpfs (S3) extension, - pushes an equality filter on 'COMID' for row-group/file pruning, - converts WKB geometry to sf with the CRS you provide (default EPSG:4326).

Usage

lc_get_watershed(
  comid,
  huc2 = NA_character_,
  huc2_filter = NULL,
  bucket = "dmap-data-commons-ow",
  prefix = "data/streamcat/LakeCatWatersheds/",
  region = "us-east-1",
  install_missing = FALSE,
  keep_open = FALSE,
  verbose = TRUE,
  progress = TRUE,
  threads = 4,
  enable_object_cache = TRUE,
  skip_describe = FALSE,
  skip_counts = TRUE,
  sf_crs = 4326,
  retries = 5,
  retry_base_delay = 0.5,
  retry_max_delay = 8,
  url_style = c("path", "virtual_hosted"),
  s3_endpoint = NULL
)

Arguments

comid

Scalar COMID to query (numeric or character, required).

huc2

Optional two-digit HUC2 string (e.g., "01") to restrict search to one partition.

huc2_filter

Optional character vector of HUC2s to read (e.g., c("01","05")) for multi-partition pruning.

bucket

Character(1). S3 bucket (default "dmap-data-commons-ow").

prefix

Character(1). S3 prefix under the bucket (default "data/streamcat/LakeCatWatersheds/").

region

Character(1). S3 region (default "us-east-1").

install_missing

Logical. Install missing packages (duckdb, DBI, sf, wk) if needed (default FALSE).

keep_open

Logical. Keep the DuckDB connection open (default FALSE). Note: the connection is not returned.

verbose

Logical. Print progress messages (default TRUE).

progress

Logical. Show a simple progress bar (default TRUE).

threads

Integer or NULL. If set, 'PRAGMA threads' for DuckDB (parallelism).

enable_object_cache

Logical. Enable DuckDB object cache to speed repeated queries (default TRUE).

skip_describe

Logical. Skip DESCRIBE step (default FALSE).

skip_counts

Logical. Skip HUC2 counts step (default TRUE; no longer returned).

sf_crs

Integer or character. CRS for the output sf object (default 4326).

retries

Integer. Number of retries for transient S3/HTTP errors (default 5).

retry_base_delay

Numeric. Initial exponential backoff delay in seconds (default 0.5).

retry_max_delay

Numeric. Maximum backoff delay per attempt in seconds (default 8).

url_style

Character. S3 URL style used by DuckDB httpfs, one of "path" or "virtual_hosted". Passed to 'match.arg()', default "path".

s3_endpoint

Optional character(1). Custom S3 endpoint hostname (e.g., "s3.amazonaws.com"). NULL uses the default for the selected region.

Value

An sf object with zero or one+ rows (if multiple features share the same COMID).

Plot National Nutrient Inventory data for lakes

Description

Function to plot time series of nitrogen and phosphorus budgets for a given lake COMID. This function allows a user to return a time series of major inputs, outputs, and derived metrics of nitrogen and phosphorus. Plot is returned as an object

Usage

lc_plotnni(comid, include.nue = FALSE)

Arguments

comid

Identifier of lake COMID user wants to plot NNI data for. Must be a character string with the COMID digit. Syntax: com=<COMID>

include.nue

Include time series of nitrogen use efficiency in the returned plot. The default value is false. Values: true|false

Value

Return plot as an object.

Author(s)

Selia Markley

Examples

## Not run: 
p <- lc_plotnni(comid='23794487')
p <- lc_plotnni(comid='23794487', include.nue=TRUE)

## End(Not run)

Lookup Full Metric Name

Description

Function to retrieve a full metric name based on the short name using the StreamCat API.

Usage

sc_fullname(metric = NULL)

Arguments

metric

Short metric name Syntax: metric=value1 Values: metric

Value

A lookup of the full name for a given StreamCat metric

Author(s)

Marc Weber

Examples


fullname <- sc_fullname(metric='clay')

Get COMIDs via ArcGIS batch query

Description

Retrieve NHDPlus catchment FEATUREID (COMID) for a set of point locations by batching points to an ArcGIS Feature Service /query endpoint and mapping the returned catchment geometries back to the input points via a local spatial intersection. This avoids per-point HTTP requests and is faster for moderate-to-large point sets.

Usage

sc_get_comid(
  points_sf,
  service_layer_url = paste0("https://watersgeo.epa.gov/arcgis/rest/services/",
    "NHDPlus_NP21/Catchments_NP21_Simplified/MapServer/0"),
  layer_id = NULL,
  chunk_size = 1000,
  feature_id_field = "FEATUREID",
  verbose = TRUE,
  crs = NULL,
  coords = NULL
)

Arguments

points_sf

An 'sf' POINT object containing the input locations. If you supply a plain 'data.frame', convert it to an 'sf' object first.

service_layer_url

URL to the ArcGIS service layer. Defaults to the EPA NHDPlus catchments endpoint.

layer_id

Deprecated. This argument is kept only for backward compatibility. If supplied, it is appended to 'service_layer_url' after trimming any trailing slash.

chunk_size

Number of points to send per batch request. Default is 1000.

feature_id_field

Name of the feature attribute to return as the COMID. Default is '"FEATUREID"'.

verbose

Logical; print progress messages for each chunk. Default is 'TRUE'.

crs

Optional CRS for the input points when a 'data.frame' is supplied or when an 'sf' object has no attached CRS. Use an EPSG code such as 4326.

coords

Optional character vector of length 2 giving x/y coordinate column names when 'points_sf' is a data frame. Example: 'c("lon", "lat")'.

Value

An integer vector of FEATUREID (COMID) values in the same order as the input points. Missing values are returned as 'NA'.

Examples

## Not run: 
pts <- sf::st_as_sf(
  data.frame(
    id = 1:3,
    x = c(-90, -90.1, -90.2),
    y = c(40, 40.1, 40.2)
  ),
  coords = c("x", "y"),
  crs = 4326
)

comids <- sc_get_comid(points_sf = pts, chunk_size = 500)

## End(Not run)

Get StreamCat data

Description

Function to return StreamCat catchment and watershed metrics using the StreamCat API. The function allows a user to get specific metric data aggregated by area of interest, returned by comid(s), hydroregion(s), state(s), or county(ies).

Usage

sc_get_data(
  comid = NULL,
  metric = NULL,
  aoi = NULL,
  showAreaSqKm = NULL,
  showPctFull = NULL,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  countOnly = NULL
)

Arguments

comid

metric

Name(s) of metrics to query. Must be character string with comma-delimited list of metrics, or, if metric='all' then all metrics will be queried. Not case-sensitive. Syntax: name=<name1>,<name2>

aoi

Name(s) of areas of interest to query. If a metric does not have data for a given AOI, no data is returned for that AOI. Certain metrics that have no AOI specified for StreamCat need the AOI to be specified as 'other'. These metrics include: BankfullDepth, BankfullWidth, ThalwagDepth (sic), CHEM_V2_1, CONN, HABT, HYD, ICI, IWI, TEMP, WettedWidth, prg_bmmi, and all the mast, msst, mwst metrics. Case-sensitive.

Syntax: areaOfInterest=<value1>,<value2> Values: cat|ws|catrp100|wsrp100|other

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is false. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

state

county

region

conus

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A data frame of StreamCat metrics. If data are missing for all rows of a given metric, then the column for that metric will not exist. If data are missing for only some rows, then they will be specified with NA.

Author(s)

Marc Weber

Examples

## Not run: 
df <- sc_get_data(comid='179', aoi='cat', metric='fert')

df <- sc_get_data(metric='pctgrs2006', aoi='ws', region='Region01')

df <- sc_get_data(metric='pctwdwet2006', aoi='ws', county='41003')

df <- sc_get_data(metric='pcturbmd2006', aoi='ws,rp100',
comid='1337420')

df <- sc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid='179,1337,1337420')

df <- sc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid='179,1337,1337420',
showAreaSqKm='true', showPctFull='true')

df <- sc_get_data(metric='pcturbmd2006,damdens',
aoi='cat,ws', comid='179,1337,1337420', countOnly='true')

df <- sc_get_data(metric='thalwagdepth', comid='179,1337,1337420', aoi='other')

df <- sc_get_data(metric='thalwagdepth', comid=c('179','1337','1337420'), aoi='other')

df <- sc_get_data(comid='179', aoi='ws', metric='all')
 
## End(Not run)

Get StreamCat Metric Names

Description

Function to filter StreamCat metrics metrics by category, area of interest, dataset or year. Use 'sc_get_params(categories)' or 'sc_get_params(datasets)' to see all the valid category or dataset options

Usage

sc_get_metric_names(category = NULL, aoi = NULL, year = NULL, dataset = NULL)

Arguments

category

Filter StreamCat metrics based on the metric category

aoi

Filter StreamCat metrics based on the area of interest

year

Filter StreamCat metrics based on a particular year or years

dataset

Filter StreamCat metrics based on the dataset name

Value

A dataframe of metrics and description that match filter criteria

Author(s)

Marc Weber

Examples

## Not run: 
metrics <- sc_get_metric_names(category='Wildfire')
metrics <- sc_get_metric_names(category = c('Deposition','Climate'),
aoi=c('Cat','Ws'))
metrics <- sc_get_metric_names(aoi='Other',
dataset=c('Canal Density','Predicted Channel Widths Depths'))


## End(Not run)

Get NLCD Data

Description

'r lifecycle::badge("deprecated")' 'sc_nlcd()' was renamed to 'sc_get_nlcd()' to create a more consistent API. Function to retrieve all NLCD metrics for a given year using the StreamCat API.

Usage

sc_get_nlcd(
  year = "2019",
  comid = NULL,
  aoi = NULL,
  showAreaSqKm = NULL,
  showPctFull = NULL,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  countOnly = NULL
)

sc_nlcd(
  year = "2019",
  comid = NULL,
  aoi = NULL,
  showAreaSqKm = NULL,
  showPctFull = NULL,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  countOnly = NULL
)

Arguments

year

Years(s) of NLCD metrics to query. Only valid NLCD years are accepted (i.e. 2001, 2004, 2006, 2008, 2011, 2013, 2016, 2019) Syntax: year=<year1>,<year2>

comid

Return metric information for specific COMIDs Syntax: comid=<comid1>,<comid2>

aoi

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is false. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

state

Return metric information for COMIDs within a specific state. Use a state's abbreviation to query for a given state. Syntax: state=<state1>,<state2>

county

Return metric information for COMIDs within a specific county. Users must use the FIPS code, not county name, as a way to disambiguate counties. Syntax: county=<county1>,<county1>

region

Return metric information for COMIDs within a specified hydroregion. Syntax: region=<regionid1>,<regionid2>

conus

Return all COMIDs in the conterminous United States. The default value is false. Values: true|false

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A tibble of desired StreamCat metrics

Author(s)

Marc Weber

Examples

## Not run: 

df <- sc_get_nlcd(year='2001', aoi='cat',comid='179') # Will show a deprecation warning

df <- sc_get_nlcd(year='2001', aoi='cat',comid='179,1337,1337420')

df <- sc_get_nlcd(year='2001', aoi='ws', region='Region01')

df <- sc_get_nlcd(year='2001', aoi='ws', region='Region01',
countOnly=TRUE)

df <- sc_get_nlcd(year='2001', aoi='ws', region='Region01',
showAreaSqKm=FALSE, showPctFull=TRUE)

df <- sc_get_nlcd(year='2001, 2006', aoi='cat,ws',
comid='179,1337,1337420')

## End(Not run)

Get NNI

Description

Function to get all NNI data available for a given year.

Usage

sc_get_nni(
  year,
  aoi = NULL,
  comid = NULL,
  showAreaSqKm = TRUE,
  state = NULL,
  county = NULL,
  region = NULL,
  conus = NULL,
  showPctFull = NULL,
  countOnly = NULL
)

Arguments

year

Years(s) of NNI metrics to query. Only valid NNI years are accepted (1987:2017) Syntax: year=<year1>,<year2>

aoi

Specify the area of interest described by a metric. By default, all available areas of interest for a given metric are returned. Syntax: areaOfInterest=<value1>,<value2> Values: catchment|watershed

comid

Return metric information for specific COMIDs Syntax: comid=<comid1>,<comid2>

showAreaSqKm

Return the area in square kilometers of a given area of interest. The default value is true. Values: true|false

state

Return metric information for COMIDs within a specific state. Use a state's abbreviation to query for a given state. Syntax: state=<state1>,<state2>

county

Return metric information for COMIDs within a specific county. Users must use the FIPS code, not county name, as a way to disambiguate counties. Syntax: county=<county1>,<county1>

region

Return metric information for COMIDs within a specified hydroregion. Syntax: region=<regionid1>,<regionid2>

conus

Return all COMIDs in the conterminous United States. The default value is false. Values: true|false

showPctFull

Return the pctfull for each dataset. The default value is false. Values: true|false

countOnly

Return a CSV containing only the row count (ROWCOUNT) and the column count (COLUMNCOUNT) that the server expects to return in a request. The default value is false. Values: true|false

Value

A tibble of desired StreamCat metrics

Author(s)

Selia Markley

Examples

## Not run: 

df <- sc_get_nni(year='1987, 1990, 2005, 2017', aoi='cat,ws',
comid='179,1337,1337420')

df <- sc_get_nni(year='2015', aoi='cat',
comid='179', countOnly=TRUE)

df <- sc_get_nni(comid='179', year='2011, 2012', aoi='ws')

df <- sc_get_nni(year='2015, 2016, 2017', county='41003', aoi='ws')

## End(Not run)

Get StreamCat Parameters

Description

Function to return available StreamCat parameters using the StreamCat API.

Usage

sc_get_params(param = NULL)

Arguments

param

Value

A list of all the current StreamCat values for a given parameter

Author(s)

Marc Weber

Examples

## Not run: 
params <- sc_get_params(param='variable_info')
params <- sc_get_params(param='metric_names')
params <- sc_get_params(param='categories')
params <- sc_get_params(param='aoi')
params <- sc_get_params(param='state')
params <- sc_get_params(param='county')
params <- sc_get_params(param='datasets')
## End(Not run)

Plot National Nutrient Inventory data for streams

Description

Function to plot time series of nitrogen and phosphorus budgets for a given stream COMID. This function allows a user to return a time series of major inputs, outputs, and derived metrics of nitrogen and phosphorus. Plot is returned as an object

Usage

sc_plotnni(comid, include.nue = FALSE, include.inset = TRUE)

Arguments

comid

Identifier of stream COMID user wants to plot NNI data for. Must be a character string with the COMID digit. Syntax: com=<COMID>

include.nue

Include time series of nitrogen use efficiency in the returned plot. The default value is false. Values: true|false

include.inset

Include inset map that shows the location of the COMID and its basin. The default value is true. Values: true|false

Value

Return plot as an object.

Author(s)

Selia Markley

Examples

## Not run: 
p <- sc_plotnni(comid='1337420')
p <- sc_plotnni(comid='1337420', include.nue=TRUE)
p <- sc_plotnni(comid='1337420', include.inset=FALSE)

## End(Not run)

Package {StreamCatTools}

Validate COMIDs

Description

Usage

Arguments

Details

Value

Author(s)

See Also

Lookup Full Metric Name

Description

Usage

Arguments

Value

Author(s)

Examples

Get Lake COMIDs

Description

Usage

Arguments

Value

Author(s)

Examples

Get LakeCat data

Description

Usage

Arguments

Value

Author(s)

Examples

Get LakeCat Metric Names

Description

Usage

Arguments

Value

Author(s)

Examples

Get NLCD Data

Description

Usage

Arguments

Value

Author(s)

Examples

Get NNI

Description

Usage

Arguments

Value

Author(s)

Examples

Get LakeCat Parameters

Description

Usage

Arguments

Value

Author(s)

Examples

Get LakeCat Lake Watershed

Description

Usage

Arguments

Value

Plot National Nutrient Inventory data for lakes

Description

Usage

Arguments

Value

Author(s)

Examples

Lookup Full Metric Name

Description

Usage

Arguments

Value

Author(s)

Examples

Get COMIDs via ArcGIS batch query

Description

Usage