RMAWGEN - Multi-Site Auto-Regressive Weather GENerator
S3 and S4 functions are implemented for spatial multi-site stochastic generation of daily time series of temperature and precipitation. These tools make use of Vector AutoRegressive models (VARs). The weather generator model is then saved as an object and is calibrated by daily instrumental "Gaussianized" time series through the 'vars' package tools. Once obtained this model, it can it can be used for weather generations and be adapted to work with several climatic monthly time series.
Last updated 3 months ago
5.59 score 3 stars 4 packages 108 scripts 704 downloadsRGENERATEPREC - Tools to Generate Daily-Precipitation Time Series
The method 'generate()' is extended for spatial multi-site stochastic generation of daily precipitation. It generates precipitation occurrence in several sites using logit regression (Generalized Linear Models) and the approach by D.S. Wilks (1998) <doi:10.1016/S0022-1694(98)00186-3> .
Last updated 3 months ago
5.26 score 4 stars 45 scripts 200 downloadsgeotopbricks - An R Plug-in for the Distributed Hydrological Model GEOtop
It analyzes raster maps and other information as input/output files from the Hydrological Distributed Model GEOtop. It contains functions and methods to import maps and other keywords from geotop.inpts file. Some examples with simulation cases of GEOtop 2.x/3.x are presented in the package. Any information about the GEOtop Distributed Hydrological Model source code is available on www.geotop.org. Technical details about the model are available in Endrizzi et al (2014) <https://gmd.copernicus.org/articles/7/2831/2014/gmd-7-2831-2014.html>.
Last updated 3 months ago
5.00 score 3 stars 110 scripts 466 downloadsRGENERATE - Tools to Generate Vector Time Series
A method 'generate()' is implemented in this package for the random generation of vector time series according to models obtained by 'RMAWGEN', 'vars' or other packages. This package was created to generalize the algorithms of the 'RMAWGEN' package for the analysis and generation of any environmental vector time series.
Last updated 3 months ago
4.38 score 1 stars 1 packages 16 scripts 291 downloadsblockmatrix - Tools to Solve Algebraic Systems with Partitioned Matrices
Some elementary matrix algebra tools are implemented to manage block matrices or partitioned matrix, i.e. "matrix of matrices" (http://en.wikipedia.org/wiki/Block_matrix). The block matrix is here defined as a new S3 object. In this package, some methods for "matrix" object are rewritten for "blockmatrix" object. New methods are implemented. This package was created to solve equation systems with block matrices for the analysis of environmental vector time series . Bugs/comments/questions/collaboration of any kind are warmly welcomed.
Last updated 9 years ago
3.52 score 1 packages 22 scripts 227 downloadsrasterList - A Raster Where Cells are Generic Objects
A S4 class has been created such that complex operations can be executed on each cell of a raster map. The raster of objects contains a raster map with the addition of a list of generic objects: one object for each raster cells. It allows to write few lines of R code for complex map algebra. Two environmental applications about frequency analysis of raster map of precipitation and creation of a raster map of soil water retention curves have been presented.
Last updated 1 years ago
climatehydrologyhydrology-statisticalhydrology-stormwater-analysis
3.34 score 1 stars 22 scripts 235 downloadssoilwater - Implementation of Parametric Formulas for Soil Water Retention or Conductivity Curve
It is a set of R implementations of parametric formulas of soil water retention or conductivity curve. At the moment, only Van Genuchten (for soil water retention curve) and Mualem (for hydraulic conductivity) were implemented. See reference (<http://en.wikipedia.org/wiki/ Water_retention_curve>).
Last updated 7 years ago
3.11 score 1 stars 26 scripts 159 downloads