Michael P. Nobis [cre, aut],
Signe Normand [ctb]
Simulating species migration and range dynamics under stable or changing environmental conditions based on a simple, raster-based, stochastic migration model. Providing accessibility from an origin or previous distribution for niche-based species distribution models. Nobis & Normand (2014) <doi:10.1111/ecog.00930>.

Data Manipulation Functions Implemented in C
c(person("Morgan", "Jacob", role = c("aut", "cre", "cph"), email = "morgan.emailbox@gmail.com"))
Basic functions, implemented in C, for large data manipulation. Fast vectorised ifelse()/nested if()/switch() functions, psum()/pprod() functions equivalent to pmin()/pmax() plus others which are missing from base R. Most of these functions are callable at C level.

c(person("Morgan", "Jacob", role = c("aut", "cre", "cph"), email = "morgan.emailbox@gmail.com"),
person("Sebastian", "Krantz", role = "ctb"))
Morgan Jacob [aut, cre, cph],
Sebastian Krantz [ctb]

Model the spectral response of a closed water-well to harmonic
strains at seismic frequencies.
Provides tools to calculate what the theoretical
hydrodynamic response will be for borehole strain and
fluid-pressure (water height) measurements of seismic waves,
for a given set of aquifer parameters.  The calculations are
based on the model presented by Kitagawa et al (2011); hence,
the name of the package.
'kitagawa-package.R' 'well_response.R' 'sensing_volume.R'
'kitplot.R' 'omega_constants.R' 'alpha_constants.R' 'nullchk.R'

'kitagawa-package.R' 'well_response.R' 'sensing_volume.R'
'kitplot.R' 'omega_constants.R' 'alpha_constants.R' 'nullchk.R'
'zzz.R'

Spectral response of water wells to harmonic strain and pressure
Provides tools to calculate the theoretical hydrodynamic response
of an aquifer undergoing harmonic straining or pressurization. There are
two classes of models here: (1) for sealed wells, based on the model of
Kitagawa et al (2011), and (2) for open wells, based on the models of
Cooper et al (1965), Hsieh et al (1987), Rojstaczer (1988), and Liu et al
(1989). These models treat strain (or aquifer head) as an input to the
physical system, and fluid-pressure (or water height) as the output. The
applicable frequency band of these models is characteristic of seismic
waves, atmospheric pressure fluctuations, and solid earth tides.
'kitagawa-package.R' 'alpha_constants.R' 'omega_constants.R'
'open_well_response.R' 'well_response.R' 'utilities.R'
'methods.R' 'zzz.R'