Description
National Eutrophication Survey Data.
Description
Serves data from the United States Environmental Protection Agency (USEPA) National Eutrophication Survey <https://www.epa.gov/national-aquatic-resource-surveys>.
README.md
National Eutrophication Survey Data Package
Installation
# install stable version from CRAN
install.packages("nesRdata")
# install development version from Github
# install devtools if not found - install.packages("devtools")
# devtools::install_github("jsta/nesRdata", update_dependencies = TRUE)
Usage
library(nesRdata)
View static compilation of all lakes
data(nes)
head(nes)
#> pdf pagenum storet_code state name county lake_type
#> 1 474 100 2709 MINNESOTA BIG STONE BIG STONE (MN) NATURAL
#> 2 474 101 2710 MINNESOTA BIRCH LAKE CASS NATURAL
#> 3 474 102 2711 MINNESOTA BLACKDUCK LAKE BELTRAMI NATURAL
#> 4 474 103 2712 MINNESOTA BLACKHOOF LAKE CROW WING NATURAL
#> 5 474 104 2713 MINNESOTA BUFFALO LAKE WRIGHT NATURAL
#> 6 474 105 2714 MINNESOTA CARRIGAN LAKE WRIGHT NATURAL
#> drainage_area surface_area mean_depth total_inflow retention_time
#> 1 3004.40 51.03 3.4 3.3 1.7
#> 2 NA 5.19 3.0 NA NA
#> 3 75.11 11.10 4.5 0.4 4.2
#> 4 20.72 0.74 4.4 0.1 257.0
#> 5 113.96 6.11 4.4 0.6 1.4
#> 6 NA 0.66 NA NA NA
#> retention_time_units alkalinity conductivity secchi tp po4 tin tn
#> 1 years 131 800 1.0 0.159 0.126 0.335 NA
#> 2 years 106 210 2.4 0.019 0.009 0.090 NA
#> 3 years 128 243 1.7 0.038 0.019 0.195 NA
#> 4 days 103 230 1.6 0.043 0.024 0.185 NA
#> 5 years 167 395 1.0 0.209 0.160 0.795 NA
#> 6 years 185 590 0.3 1.215 0.785 0.290 NA
#> p_pnt_source_muni p_pnt_source_industrial p_pnt_source_septic p_nonpnt_source
#> 1 7696 23 213 8014
#> 2 NA NA NA NA
#> 3 676 NA NA 916
#> 4 639 NA 9 254
#> 5 4821 NA 23 1129
#> 6 NA NA NA NA
#> p_total n_pnt_source_muni n_pnt_source_industrial n_pnt_source_septic
#> 1 15946 22599 NA 8036
#> 2 NA NA NA NA
#> 3 1592 2023 NA NA
#> 4 902 1914 NA 268
#> 5 5973 10086 NA 853
#> 6 NA NA NA NA
#> n_nonpnt_source n_total p_total_out p_percent_retention
#> 1 188812 219447 15846 1
#> 2 NA NA NA NA
#> 3 27329 29351 717 55
#> 4 6522 8703 141 84
#> 5 18000 28939 3950 34
#> 6 NA NA NA NA
#> p_surface_area_loading n_total_out n_percent_retention n_surface_area_loading
#> 1 0.31 214068 2 4.3
#> 2 NA NA NA NA
#> 3 0.14 16091 45 2.6
#> 4 1.22 5075 42 11.8
#> 5 0.98 51429 NA 4.7
#> 6 NA NA NA NA
#> lat long chl
#> 1 45.30833 -96.45667 16.5
#> 2 46.93333 -94.52500 6.2
#> 3 47.73889 -94.62917 14.5
#> 4 46.47167 -94.01056 12.8
#> 5 45.17083 -93.88000 38.0
#> 6 45.05833 -93.95833 84.3
Download dynamic external data and cache in file system
nes_get(version_id = "5", dest_folder = cache_path())
List cached (non-temporary) versions
nes_versions()
Load data
dt <- nes_load(version_id = "5", folder = cache_path())
names(dt)
lapply(dt, head)
Metadata
help.search("^nes$", package = "nesRdata")
Contributing
We’ve tried to fix any transciption errors from the original data files but it’s difficult to catch them all. If you find any errors please open an issue or submit a pull request against the files at https://github.com/ReproducibleQM/NES
References
Stachelek, J., Ford, C., Kincaid, D., King, K., Miller, H. and Nagelkirk, R., 2018. The National Eutrophication Survey: lake characteristics and historical nutrient concentrations. Earth System Science Data, 10(1), pp.81-86.