USlakes

These data contain dissolved organic carbon (DOC) in National Lakes Data from the U.S. Environmental Protection Agency

datasets

Performs predictions of totals and weighted sums, or finite population block kriging, on spatial data using the methods in Ver Hoef (2008) <doi:10.1007/s10651-007-0035-y>. The primary outputs are an estimate of the total, mean, or weighted sum in the region, an estimated prediction variance, and a plot of the predicted and observed values. This is useful primarily to users with ecological data that are counts or densities measured on some sites in a finite area of interest. Spatial prediction for the total count or average density in the entire region can then be done using the functions in this package.

Higham Matt

sptotal

Predicting Totals and Weighted Sums from Spatial Data

Matt Higham

Jay Ver Hoef

Bryce Frank

Michael Dumelle

USlakes function

A data frame with 1206 rows and 9 variables:<dl>
 <dt>XCOORD</dt>
<dd>x-coordinate from US Contiguous Albers Equal Area Conic projection</dd> <dt>YCOORD</dt>
<dd>y-coordinate from US Contiguous Albers Equal Area Conic projection</dd> <dt>DOC_RESULT</dt>
<dd>Analyte value, in mg/L, for Dissolved Organic Carbon</dd> <dt>ELEVATION</dt>
<dd>Elevation at lake coordinates (LAT_DD_N83, LON_DD_N83) from NHD Digital Elevation Map layer</dd> <dt>FCIBIG_LIT</dt>
<dd>Fish cover: index of fish cover due to large structures in the littoral zone</dd> <dt>RVFCGNDBARE_RIP</dt>
<dd>riparian zone and vegetation: fraction of ground lacking cover in the riparian zone</dd> <dt>RVFCGNDWOODY_RIP</dt>
<dd>riparian zone and vegetation: fraction of ground cover by woody vegetation in the riparian zone</dd> <dt>RVFPUNDWOODY_RIP</dt>
<dd>riparian zone and vegetation: fraction of understory with nonwoody cover present in the riparian zone</dd> <dt>UID</dt>
<dd>A unique lake identifier in the EPA lake survey databases</dd>
</dl>

Format

Dissolved Organic Carbon in U.S. Lakes — USlakes

A data frame with 1206 rows and 9 variables:<dl>
 <dt>XCOORD</dt>
<dd>x-coordinate from US Contiguous Albers Equal Area Conic projection</dd>

 <dt>YCOORD</dt>
<dd>y-coordinate from US Contiguous Albers Equal Area Conic projection</dd>

 <dt>DOC_RESULT</dt>
<dd>Analyte value, in mg/L, for Dissolved Organic Carbon</dd>

 <dt>ELEVATION</dt>
<dd>Elevation at lake coordinates (LAT_DD_N83, LON_DD_N83) from NHD Digital Elevation Map layer</dd>

 <dt>FCIBIG_LIT</dt>
<dd>Fish cover: index of fish cover due to large structures in the littoral zone</dd>

 <dt>RVFCGNDBARE_RIP</dt>
<dd>riparian zone and vegetation: fraction of ground lacking cover in the riparian zone</dd>

 <dt>RVFCGNDWOODY_RIP</dt>
<dd>riparian zone and vegetation: fraction of ground cover by woody vegetation in the riparian zone</dd>

 <dt>RVFPUNDWOODY_RIP</dt>
<dd>riparian zone and vegetation: fraction of understory with nonwoody cover present in the riparian zone</dd>

 <dt>UID</dt>
<dd>A unique lake identifier in the EPA lake survey databases</dd>


</dl>

USlakes: Dissolved Organic Carbon in U.S. Lakes

Description

Usage

Arguments

Format

Examples