Tools for Working with the National Hydrography Dataset

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Documentation for package ‘nhdR’ version 0.6.1

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

nhdR-package	R interface to the National Hydrography Dataset
bbox2poly	Convert a bounding box to polygon
extract_network	Return nhd plus stream network upstream of a waterbody
find_state	find_state
find_vpu	Find VPU
great_lakes	Data and spatial polygons of the Great Lakes
gull	List of simple features lake polygons and flowlines within a buffer around Gull Lake Michigan.
gull_flow	Flowlines within a buffer around Gull Lake Michigan including flow information.
leaf_reaches	Return leaf reaches from a network or query intersecting lake
mendota	List of simple features lake polygons and flowlines within a buffer around Lake Mendota.
mendota_network	Upstream flowlines connected to Lake Mendota.
nhdR	R interface to the National Hydrography Dataset
nhd_dl_state	nhd_dl_state
nhd_get	Download and cache NHD data by state
nhd_info	Return NHD layer metadata and field listing
nhd_list	List available locally cached NHD layers per state
nhd_load	Load NHD layers into current session
nhd_plus_get	Download and cache NHDplus data by vector processing unit
nhd_plus_info	Return NHDplus layer metadata and field listing
nhd_plus_list	List available locally cached NHDplus layers per state
nhd_plus_load	Load NHDplus layers into current session
nhd_plus_query	Select NHDplus features via polygon or circular buffer of coordinate pair
nhd_query	Select NHD features clipped by a circular buffer a coordinate pair
select_point_overlay	Select features clipped by a point buffer around a point
select_poly_overlay	Select features clipped by a polygon
sunapee	List of simple features lake polygons and flowlines within a buffer around Lake Sunapee.
sunapee_network	Upstream flowlines connected to Lake Sunapee.
terminal_reaches	Return terminal reaches from collection intersecting lake
tip_reaches	Return tip reaches from a network
toUTM	Re-project to appropriate UTM zone
vpu_shp	Low-res simple features data frame of the NHDPlus vector processing units