{"id":26163690,"url":"https://github.com/maltegrosse/go-bird","last_synced_at":"2026-04-25T07:34:29.725Z","repository":{"id":109062527,"uuid":"263157116","full_name":"maltegrosse/go-bird","owner":"maltegrosse","description":"Go adoption of Richard E. 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Bird - Clear Sky Broadband Solar Radiation Model\n=======================================\n[![Go Report Card](https://goreportcard.com/badge/github.com/maltegrosse/go-bird)](https://goreportcard.com/report/github.com/maltegrosse/go-bird)\n[![GoDoc](https://godoc.org/github.com/maltegrosse/go-bird?status.svg)](https://pkg.go.dev/github.com/maltegrosse/go-bird)\n![Go](https://github.com/maltegrosse/go-bird/workflows/Go/badge.svg) \n\nThe Bird Clear Sky Model, (original implemented by Afshin Michael Andreas/NREL, adopted in go lang) authored by Richard Bird, is a broadband algorithm that produces estimates of clear sky direct beam, hemispherical diffuse, and total hemispherical solar radiation on a horizontal surface.\nThe model is based on comparisons with results from rigorous radiative transfer codes. It is composed of simple algebraic expressions with 10 user-provided inputs. Model results should be expected to agree within ±10% with rigorous radiative transfer codes. The model computes hourly average solar radiation for every hour of the year, based on the 10 user input parameters; however, variable atmospheric parameters such as aerosol optical depth, ozone, and water vapor are fixed for the entire year.\n## Installation\n\nThis packages requires Go 1.13. If you installed it and set up your GOPATH, just run:\n\n`go get -u github.com/maltegrosse/go-bird`\n\n## Usage\n\nYou can find some examples in the [examples](examples) directory.\n\nPlease visit https://midcdmz.nrel.gov/sampa/ for additional information.\n\nSome additional helper functions have been added to the original application logic.\n\n(Results validated in [Go-Sampa](https://github.com/maltegrosse/go-sampa))\n\n## License\n**[NREL BIRD License](https://midcdmz.nrel.gov/sampa/#license)**\n\nAdoption in Golang under **[MIT license](http://opensource.org/licenses/mit-license.php)** 2020 © Malte Grosse.\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmaltegrosse%2Fgo-bird","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmaltegrosse%2Fgo-bird","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmaltegrosse%2Fgo-bird/lists"}