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Evapotranspiration

Ruby library for calculating reference crop evapotranspiration (ETo), also referred to as potential evapotranspiration (PET), using the FAO-56 Penman-Monteith method. This was originally ported into Ruby from the PyETo Python package from Mark Richards. The library provides numerous methods for estimating missing meteorological data.

Three methods for estimating ETo/PET are implemented:

• FAO-56 Penman-Monteith (Allen et al, 1998)
• Hargreaves (Hargreaves and Samani, 1982; 1985)
• Thornthwaite (Thornthwaite, 1948)

Installation

Add this line to your application's Gemfile:

gem 'evapotranspiration'

And then execute:

$ bundle

Or install it yourself as:

$ gem install evapotranspiration

Information

Documentation

You can view the evapotranspiration documentation here: http://www.rubydoc.info/gems/evapotranspiration

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/beaorn/evapotranspiration

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment. To install this gem onto your local machine, run bundle exec rake install.

License

The gem is available as open source under the terms of the BSD 3-Clause License (see LICENSE.txt).

The original PyETo Python package it is based on was released under the BSD 3-Clause License (see LICENSE-ORIGINAL.txt).