Several chemical variables can be determined using infrared absorption spectroscopy. In hydrology, stage would be observed using a staff gauge, electric tape, pressure transducer, gas bubbler, or acoustics. Examples of satellite observation principles: Cross-nadir scanning IR sounder; MW imaging/sounding radiometer, conical scanning, etc. 8-03 Observable Intrinsic capability of the observing record "not available" M*# method to measure the designated Upper limit of operational range (Phase 1) element Lower limit of operational range Examples Barometer measurement range 800-1100 hPa (i.e. unsuitable for some mountain ranges, Mt Everest ~300hPa) Maximum distance a human observer can observe given the topography. 8-04 Instrument stability Intrinsic capability of the instrument Example C* to retain its calibration over time Example ozone analyzer (Phase 1) 8-05 Vertical distance Vertical Distance of sensor from Examples: C* reference level (ground surface, Air temperature: height of the (Phase 1) water surface, lowest astronomical temperature sensor is 1.5 m above tide, station, platform) and ground surface (station level). specification of reference surface. Surface wind: 10.0 m above ground Reference level is generally a surface (station level) surface which will strongly influence Soil temperature: 0.50 m below soil the observation. Away from centre surface; of earth positive. Ship: Visual Obs Height: 22.0 m a.s.l. Weather Watch Radar: Warruwi AU 24.3 m above ground surface (see 7-06) Transmissometer 2.5 runway surface
Several chemical variables can be determined using infrared absorption spectroscopy. In hydrology, stage would be observed using a staff gauge, electric tape, pressure transducer, gas bubbler, or acoustics. Examples of satellite observation principles: Cross-nadir scanning IR sounder; MW imaging/sounding radiometer, conical scanning, etc. 8-03 Observable Intrinsic capability of the observing method to measure the designated element record "not available" Upper limit of operational range Lower limit of operational range Examples Barometer measurement range 800-1100 hPa (i.e. unsuitable for some mountain ranges, Mt Everest ~300hPa) Maximum distance a human observer can observe given the topography. M*# (Phase 1) 8-04 Instrument stability Intrinsic capability of the instrument to retain its calibration over time Example Example ozone analyzer C* (Phase 1) 8-05 Vertical distance Vertical Distance of sensor from reference level (ground surface, water surface, lowest astronomical tide, station, platform) and specification of reference surface. Reference level is generally a surface which will strongly influence the observation. Away from centre of earth positive. Examples: Air temperature: height of the temperature sensor is 1.5 m above ground surface (station level). Surface wind: 10.0 m above ground surface (station level) Soil temperature: 0.50 m below soil surface; Ship: Visual Obs Height: 22.0 m a.s.l. Weather Watch Radar: Warruwi AU 24.3 m above ground surface (see 7-06) Transmissometer 2.5 runway surface C* (Phase 1)
TT-WMD-2_Final-Report_Appendix-II.docx