# Concept

## 2-pi scalar radiometer

URI | http://vocab.nerc.ac.uk/collection/S04/current/S0434/ | |
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Within Vocab | BODC parameter semantic model analytical method entity descriptions | |

Alternative Labels | ||

Definition | An instrument with a hemispherical collector that measures electromagnetic radiation of unspecified wavelength travelling in all directions over 180 degrees. | |

Date | 2006-10-02T18:26:59 | |

Identifier | SDN:S04::S0434 | |

Note | accepted | |

Has Current Version | 1 | |

version | 1 | |

Broader | `S01:S0110` | analytical method entity |

Related | `P01:IRRDSSXS` | Downwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the atmosphere by 2-pi scalar radiometer and taking the maximum value from two or more sensors |

`P01:IRRDSSMS` | Downwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the atmosphere by 2-pi scalar radiometer and taking the average value from two or more sensors | |

`P01:IRRDSS01` | Downwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the atmosphere by 2-pi scalar radiometer | |

`P01:DWIRSXSD` | Downwelling 2-pi scalar irradiance as energy of electromagnetic radiation (PAR wavelengths) in the atmosphere by 2-pi scalar radiometer | |

`P01:IRRDPP01` | Downwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:IRRUPP01` | Upwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:IRRUPPSD` | Upwelling 2-pi scalar irradiance as photons standard deviation of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:UWIRPP01` | Upwelling 2-pi scalar irradiance as energy of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:DWPARSTD` | Downwelling 2-pi scalar irradiance as energy standard deviation of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:IRRDPPSD` | Downwelling 2-pi scalar irradiance as photons standard deviation of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:UWPARSTD` | Upwelling 2-pi scalar irradiance as energy standard deviation of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer | |

`P01:DWIRPP01` | Downwelling 2-pi scalar irradiance as energy of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer |

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