lake_link | R Documentation |
Includes single or multiple identifiers per lake from other commonly used national-scale data products including: Water Quality Portal (WQP), Geographic Names Information System (GNIS), NHD MR Plusv2, LAGOS-NE, and the EPA National Lake Assessment surveys from 2007 and 2012.
Variable name | Variable name group | Lagosne variable name | Variable description | Units |
lagoslakeid | lagoslakeid | lagoslakeid | unique lake identifier developed by LAGOS-US | |
lake_nhdid | nhdid | nhdid | the unique Permanent_Identifier from the NHD for each LAGOS lake | |
lake_reachcode | reachcode | reach code assigned to the water feature by the NHD | ||
lake_namegnis | namegnis | gnis_name | lake name from the GNIS database | |
lake_namelagos | namelagos | lagosname1 | lake name from a combination of data sources; examples are GNIS, WQP, etc. | |
lake_county | county | name of county containing the focal lake polygon centroid | ||
lake_countyfips | countyfips | Federal Information Processing Standard, FIPS, code for the county containing the focal lake polygon centroid | ||
lake_lat_decdeg | lat_decdeg | nhd_lat | latitude of central point inside the NHD lake polygon in decimal degrees; NAD83 projection | decimal degree |
lake_lon_decdeg | lon_decdeg | nhd_long | longitude of central point inside the NHD lake polygon in decimal degrees; NAD83 projection | decimal degree |
lake_centroidstate | centroidstate | two-letter postal abbreviation of the state containing the lake central point | ||
nhdhr_area_sqkm | nhdhr_area_sqkm | area of areal feature based on Albers Equal Area, as assigned in NHD | square kilometer | |
nhdhr_fdate | nhdhr_fdate | date of last feature modification in National Hydrography Dataset | ||
nhdhr_gnisid | nhdhr_gnisid | unique identifier assigned by GNIS | ||
lagosus_legacysiteid | lagosus_legacysiteid | unique site or lake identifier from the original LAGOS-US water quality source dataset--this is not standardized and each source dataset has its own system | ||
lagosus_legacysitelabel | lagosus_legacysitelabel | column name or field name used by the source dataset to label the legacy lake identifier | ||
lagosus_legacyprogram | lagosus_legacyprogram | program name assigned in LAGOS-US to identify the source dataset provider | ||
wqp_monitoringlocationidentifier | wqp_monitoringlocationidentifier | a designator used to describe the unique name, number, or code assigned to identify the monitoring location | ||
wqp_monitoringlocationname | wqp_monitoringlocationname | the designator specified by the sampling organization for the site at which sampling or other activities are conducted | ||
wqp_providername | wqp_providername | source system that provided data to the Water Quality Portal; examples are NWIS, STORET, STEWARDS, etc. | ||
nhdplusv2_comid | nhdplusv2_comid | common identifier of the NHD Waterbody feature | ||
nhdplusv2_reachcode | nhdplusv2_reachcode | NHDplus v2 reach code assigned to the water feature. | ||
nhdplusv2_area_sqkm | nhdplusv2_area_sqkm | feature area in square kilometers, as assigned by NHD | square kilometer | |
lagosne_lagoslakeid | lagosne_lagoslakeid | unique lake identifier developed for LAGOS-NE | ||
lagosne_legacysiteid | lagosne_legacysiteid | unique site/lake identifier from the original LAGOS-NE water quality source dataset--this is not standardized and each source dataset has its own system | ||
nla2007_siteid | nla2007_siteid | lake site identifier from National Lakes Assessment 2007 survey | ||
nla2012_siteid | nla2012_siteid | lake site identifier from National Lakes Assessment 2012 survey | ||
nhdplusv2_lakes_n | nhdplusv2_lakes_n | count of NHDPlusV2 polygons matching the LAGOS-US lagoslakeid | count | |
lagosne_lakes_n | lagosne_lakes_n | count of LAGOS-NE lagoslakeids matching the LAGOS-US lagoslakeid | count | |
wqp_sites_n | wqp_sites_n | count of WQP sites within the LAGOS-US lake | count | |
lagosus_legacyids_n | lagosus_legacyids_n | count of all LAGOS-US legacy ids linked to the lagoslakeid in this table; these ids include, for example, original sampling site identifiers | count |
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