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Metadata for all lakes > 1ha
Description
A dataset containing identifying information for all lakes > 1ha. This includes lake name, lake size (area and perimeter), location (lat/long), elevation, and codes identifying zones in which the lake is located.
Format
A data frame with 141265 observations of 17 variables:
lagoslakeid: unique identifier for each lake in LAGOS-NE. For each row of data in this table, the lagoslakeid identifies the focal lake for which other measures are calculated
nhdid: the 'Permanent_identifier' from the NHD, but is called the NHDID in LAGOS-NE
gnis_name: lake name from the GNIS database
nhd_lat: latitude of centroid of the NHD lake polygon in decimal degrees (NAD83)
nhd_long: longitude of centroid of the NHD lake polygon in decimal degrees (NAD83)
lake_area_ha: surface area (in hectares) of lake waterbody polygon from NHD
lake_perim_meters: perimeter (in meters) of lake waterbody polygon from the NHD
nhd_fcode: NHD five-digit integer code with feature code plus additional characteristics/values
nhd_ftype: NHD three-digit integer code providing a unique identifier of feature type for the waterbody
iws_zoneid: the unique ID of the IWS that is estimated for the focal lake in the row of data that is identified by the lagoslakeid.
hu4_zoneid: the unique ID of the HU4 zone that the focal lake is located within
hu6_zoneid: the unique ID of the HU6 zone that the focal lake is located within
hu8_zoneid: the unique ID of the HU8 zone that the focal lake is located within
hu12_zoneid: the unique ID of the HU12 zone that the focal lake is located within
edu_zoneid: the unique ID of the EDU zone that the focal lake is located within
county_zoneid: the unique ID of the county that the focal lake is located within
state_zoneid: the unique ID of the state that the focal lake is located within
elevation_m: the elevation of the lake centroid, in meters (referenced to the North American Vertical Datum of 1988 (NAVD88)) and obtained from the National Elevation Dataset
References
Soranno et al. (2017) doi:10.1093/gigascience/gix101