nysted: Nysted wind farm data
In chrissuthy/statsecol: A Package Assocaited With The Statistical Ecology MSc

nysted

R Documentation

Nysted wind farm data

Description

An environmental impact assessment (EIA) dataset collected from a site with two off-shore wind farms in Denmark (Rødsand I built in 2003 and Rødsand II built in 2010).

Usage

data("nysted")

Format

A data frame with 31502 observations on the following 12 variables.

DistCoast: distance in km from the coast.
Phase: The construction phase of the wind farms. A character where A is before any farms were installed (11 survey days), B is after Rødsand I was installed (13 survey days), and C is after Rødsand II was installed (5 survey days).
Area: Observation area for each count (km^2).
Count: Estimated bird abundance using distance sampling, a method that adjusts for the imperfect detection process i.e. animals farthest from the plane are more difficult to observe. This is typically used as the response variable.
Depth: Sea depth at spatial location of observation in metres.
Year: Year observation was made (e.g., 2000, 2005, 2007).
Month: Month observation was made (1, 2, 3, 4).
Day: Day of the month the observation was made (1,2,\ldots,31).
YearMonth: Concatanated year and month of observation (e.g., 2000/1 is January 2000).
XPos: X coordinate in UTM projection (metres).
YPos: Y coordinate in UTM projection (metres).
TransectID: Unique transect ID (character).

Details

The objective was to study the potential effects of the wind farms on birds. Details about the study can be found in the first report commissioned after Rødsand I was completed (see ditation below). The data are counts of birds seen within some distance of pre-determined tracks (transects) flown by aircraft.

References

Kahlert, J., Petersen, I.K., Fox, A.D., Desholm, M. and Clausager, I., 2004. Investigations of birds during construction and operation of Nysted offshore wind. NERI report. https://tethys.pnnl.gov/sites/default/files/publications/Kahlert-et-al-2004.pdf