Code and data for:

Stachelek, J., Hanly, P.J., Soranno, P.A., 2022. Imperfect slope measurements drive overestimation in geometric cone model of lake and reservoir depth. Inland Waters, 12(2), 283-293. 10.1080/20442041.2021.2006553

Products

Paper: manuscript/manuscript.pdf

Data: bathymetry derived depth predictors

column name	variable	description
lagoslakeid	-	unique lake identifier developed for LAGOS-US
lake_maxdepth_m	Max depth (m)	lake maximum depth in meters
maxdepth_true_true	-	lake maximum depth calculated from inlake_slope and dist_deepest in meters
maxdepth_true_false	-	lake maximum depth calculated from inlake_slope and dist_viscenter
maxdepth_false_true	-	lake maximum depth calculated from slope_mean and dist_deepest in meters
maxdepth_false_false	-	lake maximum depth calculated from slope_mean and dist_viscenter in meters
dist_deepest	Deepest point distance (m)	distance from the lake shoreline to the deepest point of the lake in meters
dist_viscenter	Visual center distance (m)	distance from the lake shoreline to the point furthest from the lake shoreline in meters
reservoir_class	Reservoir class	classification of lakes are natural lakes or reservoirs by way of Polus et al.
shape_class	Shape class	classification of lakes as concave or convex following Hakanson (1977)
lake_perimeter_m	Perimeter (m)	perimeter of outer boundary of lake waterbody polygon from the NHD (excludes islands) by way of the LAGOS-US Locus module
lake_islandarea_ha	Island area (ha)	surface area of islands within outer boundary of lake waterbody polygon from NHD by way of the LAGOS-US Locus module
lake_elevation_m	Elevation (m)	the elevation of the lake polygon centroid, in meters (referenced to the North American Vertical Datum of 1988 (NAVD88)) and obtained from the National Elevation Dataset by way of the LAGOS-US Locus module
lake_waterarea_ha	Area (ha)	surface area of lake waterbody polygon from NHD (excludes islands) by way of the LAGOS-US Locus module
lake_shorelinedevfactor	Shoreline development	shoreline development factor calculated as the lake_perimeter_m / (2sqrt(pilake_waterarea_ha*10000)) by way of the LAGOS-US Locus module
ws_lake_arearatio	Watershed-lake ratio	ratio between interlake watershed area and lake water area by way of the LAGOS-US Locus module
hu4_zoneid	HUC4 ID	unique identifier assigned by LAGOS-US for zones in the spatial division HU4

Data: bathymetry derived lake depth

column name	variable	description
llid	-	unique lake identifier developed for LAGOS-US
state	State	abbreviation of the state used to search for a lake’s depth
max_depth_m	Max depth (m)	lake maximum depth in meters
mean_depth_m	Mean depth (m)	lake mean depth in meters
source	-	url link to the source of depth data
lake_waterarea_ha	Area (ha)	surface area of lake waterbody polygon from NHD (excludes islands) by way of the LAGOS-US Locus module
lake_connectivity_permanent	-	connectivity of focal lake to upstream features (DrainageLK = drainage lake with an upstream lake, Drainage = drainage lake with upstream stream, Headwater = lake with outlet but no inlet, Isolated = lake with no inlets or outlets) by way of the LAGOS-US Locus module
lake_lat_decdeg	-	the latitude of the lake center point (NAD83) from the LAGOS-US Locus module
lake_lon_decdeg	-	the longitude of the lake center point (NAD83) from the LAGOS-US Locus module
lat	-	the latitude of the lake center point
long	-	the longitude of the lake center point

Reproducibility

# local
make -t data/00_hypso/hypso.csv
make -t data/00_bathy_depth/bathy_pnts.rds
make -t data/00_bathy_depth/00_bathy_depth.csv
make -t data/00_bathy_depth/bathy_geometry.csv
make -t data/00_hypso/hypso_classes.csv
make -t data/00_reservoir_classification/reservoir_classes_clean.csv
make -t data/lagosus_depth_predictors.csv
make -t data/lagosne_depth_predictors.csv
make -t data/00_geometry/nearshore.csv
make all