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requirementstable 2008/05/14 18:48 requirementstable 2008/06/13 15:03 current
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====== Current and future ESA missions and forward modelling requirements ====== ====== Current and future ESA missions and forward modelling requirements ======
-This table shows the reviewed mission reviewed so far. The table summarizes the objectives of the missions and provides information about required forward modelling capabilities. Most of the information has been obtained from ESA's website: http://www.esa.int+This table shows the reviewed ESA missions. More details are given in {{:rt_requirements.pdf|WP1200 report}}. The table summarizes the objectives of the missions and provides information about required forward modeling capabilities. Most of the information has been obtained from ESA's website: http://www.esa.int 
 + 
 +There is also a table showing the [[requirements_matrix|requirements and missions in a matrix structure]].
===== Envisat ===== ===== Envisat =====
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^instrument^objective^measured quantities^instrumentation^FM requirements^ ^instrument^objective^measured quantities^instrumentation^FM requirements^
-|ASAR| measure surface topography and ocean currents  | reflected radar pulses from surface  | Microwave radar: C-band, with choice of 5 polarisation modes | retrieval based on Doppler shift, no radiative transfer required  | +|ASAR| measure surface topography and ocean currents  | reflected radar pulses from surface  | Microwave radar: C-band, with choice of 5 polarisation modes | retrieval based on Doppler shift, no radiative transfer required in standard retrieval method; RT useful for error analysis
-|MERIS| measure atmosphere and surface properties  | cloud optical depth, cloud top height, water vapor column, surface vegetation, ocean (biology and color)  |  medium-spectral resolution, imaging spectrometer, solar spectral range  | detailed RT models required (BRDFs, clouds, aerosols, ...)  |  +|MERIS| measure atmosphere and surface properties  | cloud optical depth, cloud top height, water vapor column, surface vegetation, ocean (biology and color)  |  medium-spectral resolution, imaging spectrometer, solar spectral range  | detailed RT models required (BRDFs, clouds, aerosols, ...), RT in water
|AATSR| measure atmosphere and surface properties  | sea and land surface temperature, cloud properties, vegetation quantity and quality  | reflected and emitted radiation at 0.55 µm, 0.66 µm, 0.87 µm, 1.6 µm, 3.7 µm, 11 µm and 12 µm  | solar and thermal radiances (correlated-k)  | |AATSR| measure atmosphere and surface properties  | sea and land surface temperature, cloud properties, vegetation quantity and quality  | reflected and emitted radiation at 0.55 µm, 0.66 µm, 0.87 µm, 1.6 µm, 3.7 µm, 11 µm and 12 µm  | solar and thermal radiances (correlated-k)  |
|RA-2 | improve knowledge of topography | surface altitude |  nadir-looking pulse-limited radar altimeter at 13.575 GHz  |retrieval based on time shift of radar echo, no radiative transfer required | |RA-2 | improve knowledge of topography | surface altitude |  nadir-looking pulse-limited radar altimeter at 13.575 GHz  |retrieval based on time shift of radar echo, no radiative transfer required |
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^instrument^objective^measured quantities^instrumentation^FM requirements^ ^instrument^objective^measured quantities^instrumentation^FM requirements^
-|MSG SEVERI | nowcasting, forecasting, NWP, climate monitoring  | cloud and atmospheric motion vectors, cloud type, coverage, height and temperature, surface albedo, sea surface temperature, total ozone, (upper) tropospheric humidity  | specrometer with 12 spectral bands between 0.6 and 13.4 μm, bandwidths between 0.3 to 2 μm  | broadband solar and thermal radiances  | +|MSG SEVERI | nowcasting, forecasting, NWP, climate monitoring  | cloud and atmospheric motion vectors, cloud type, coverage, height and temperature, surface albedo, sea surface temperature, total ozone, (upper) tropospheric humidity  | spectrometer with 12 spectral bands between 0.6 and 13.4 μm, bandwidths between 0.3 to 2 μm  | broadband solar and thermal radiances  | 
-|MSG GERB |improve understanding the Earth’s climate balance  | outgoing and incoming radiative flux  | radiometers measuring at 0.32 - 4 μm and at 4 - 30 μm | broadband radiances and fluxes (solar and thermal  |+|MSG GERB |improve understanding the Earth’s climate balance  | outgoing and incoming radiative flux  | radiometers measuring at 0.32 - 4 μm and at 4 - 30 μm | broadband radiances and fluxes (solar and thermal) |
|MTG FDHSI  | full disk high spectral imagery for nowcasting, forecasting, NWP, climate monitoring, fire detection  | cloud detection, type, CTP, CTT, cloud phase, drop size, COT, AOT, Aerosol size distr., volcanic ash, instability, CMV, AMV, LST, SST, vegetation, albedo  | 16 channel radiometer, 0.444, 0.51, 0.645, 0.86, 0.96, 1.375, 1.61, 2.26 (all Δx = 1 km), 3.8, 6.3, 7.35, 8.7, 9.66, 10.5, 12.3, 13.3 um (all TIR Δx: 2 km, Δt: 10 min, bandwidth: 0.03 - 0.7 um)  | solar/thermal radiances  | |MTG FDHSI  | full disk high spectral imagery for nowcasting, forecasting, NWP, climate monitoring, fire detection  | cloud detection, type, CTP, CTT, cloud phase, drop size, COT, AOT, Aerosol size distr., volcanic ash, instability, CMV, AMV, LST, SST, vegetation, albedo  | 16 channel radiometer, 0.444, 0.51, 0.645, 0.86, 0.96, 1.375, 1.61, 2.26 (all Δx = 1 km), 3.8, 6.3, 7.35, 8.7, 9.66, 10.5, 12.3, 13.3 um (all TIR Δx: 2 km, Δt: 10 min, bandwidth: 0.03 - 0.7 um)  | solar/thermal radiances  |
|MTG HRFI| high resolution fast imagery to support nowcasting and observation of convective lifcycle, AMV, rapid development of CTH and cloud top microphysics  | cloud detection, CTP, CTT, cloud phase, drop size  | 4 channel radiometer, 0.645, 2.26, 3.8, 10.5 um, (Δx VIS/NIR: 0.5 km, TIR: 1 km; Δt: 2 min, bandwidth: 0.05 - 0.7 um)  | solar/thermal radiances  | |MTG HRFI| high resolution fast imagery to support nowcasting and observation of convective lifcycle, AMV, rapid development of CTH and cloud top microphysics  | cloud detection, CTP, CTT, cloud phase, drop size  | 4 channel radiometer, 0.645, 2.26, 3.8, 10.5 um, (Δx VIS/NIR: 0.5 km, TIR: 1 km; Δt: 2 min, bandwidth: 0.05 - 0.7 um)  | solar/thermal radiances  |
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== Future missions == == Future missions ==
^mission^objective^measured quantities^instrumentation^FM requirements^ ^mission^objective^measured quantities^instrumentation^FM requirements^
-|TRAQ|Air quality of troposphäre  |O3, NO2, SO2, HCHO, H2O, HCOOCH, CO, CH4, tropospheric aerosol characterisation  |High resolution SW spectrometer (UV-IR), multi-directional polarization imager, cloud imager  | polarized radiances UV-IR, LBL, multiple scattering, various aerosol types  | +|TRAQ|Air quality of troposphäre  |O3, NO2, SO2, HCHO, H2O, HCOOCH, CO, CH4, tropospheric aerosol characterisation  |High resolution SW spectrometer (UV-IR), multi-directional polarization imager, cloud imager  | polarized radiances UV-IR, LBL, multiple scattering, various aerosol types  | 
-|PREMIER| atmospheric processes linking trace gases, radiation, chemistry and climate  |trace gases and water vapor in UTLS  |infrared limb-imaging spectrometer and a millimeter-wave limb-sounder  |   spherical clearsky model for thermal wavelegth region  | +|PREMIER| atmospheric processes linking trace gases, radiation, chemistry and climate  |trace gases and water vapor in UTLS  |infrared limb-imaging spectrometer and a millimeter-wave limb-sounder  | spherical clearsky model for thermal wavelegth region  |
|FLEX|observe global photosynthesis through the measurement of fluorescence  |fluorescence signal of plants, vegetation temperature  |very high-spectral resolution imaging spectrometer  | Raman scattering (?), absorption in plants, fluoreszenz  | |FLEX|observe global photosynthesis through the measurement of fluorescence  |fluorescence signal of plants, vegetation temperature  |very high-spectral resolution imaging spectrometer  | Raman scattering (?), absorption in plants, fluoreszenz  |
|A-Scope| global carbon cycle and regional carbon dioxide fluxes  |CO2, aerosol and cloud layer information, tree canopy height |high-resolution Differential Absorption Lidar (DIAL), 1.57 and 2.05 μm  | Multiple scattering lidar simulator  | |A-Scope| global carbon cycle and regional carbon dioxide fluxes  |CO2, aerosol and cloud layer information, tree canopy height |high-resolution Differential Absorption Lidar (DIAL), 1.57 and 2.05 μm  | Multiple scattering lidar simulator  |
-|CoReH2O| snow, ice and water cycle  |improve modelling, prediction of water balance and streamflow for snow covered and glacierised basins  |twin frequency synthetic aperture radars (9.6 and 17.2 GHz)  | radar simulator +|CoReH2O| snow, ice and water cycle  |improve modelling, prediction of water balance and streamflow for snow covered and glacierised basins  |twin frequency synthetic aperture radars (9.6 and 17.2 GHz)  | radar simulator for detailed data analysis
-|BIOMASS  | assess terrestrial carbon stocks and fluxes  | global measurements of forest biomass  |P-band synthetic aperture polarimetric radar (435 MHz, 6 MHz bandwidth)  | polarized radar simulator (MHz wavelength region) |+|BIOMASS  | assess terrestrial carbon stocks and fluxes  | global measurements of forest biomass  |P-band synthetic aperture polarimetric radar (435 MHz, 6 MHz bandwidth)  | polarized radar simulator (MHz wavelength region) for detailed data analysis        |
===== GMES Sentinels ===== ===== GMES Sentinels =====
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^mission^objective^measured quantities^instrumentation^FM requirements^ ^mission^objective^measured quantities^instrumentation^FM requirements^
|Sentinel 1  | Radar mapping; continuity for SAR data  | surface altitude and change  | C-band radar (4-8 GHz)  | retrieval based on time shift of radar echo, no radiative transfer required for retrieval; signal affected by atmosphere, e.g. heavy rain; radar simulator required to assess these effects  | |Sentinel 1  | Radar mapping; continuity for SAR data  | surface altitude and change  | C-band radar (4-8 GHz)  | retrieval based on time shift of radar echo, no radiative transfer required for retrieval; signal affected by atmosphere, e.g. heavy rain; radar simulator required to assess these effects  |
-|Sentinel 2  | generic maps of land cover for agricultural, urban, and forest management, as well as geo-biophysical variables such as leaf area index or vegetation state  | surface properties  | spectrometer (443nm to 2190nm)  | RT model for UV/Vis, BRDFs, correlated-k or spectral band models |  +|Sentinel 2  | generic maps of land cover for agricultural, urban, and forest management, as well as geo-biophysical variables such as leaf area index or vegetation state  | surface properties  | spectrometer (443nm to 2190nm)  | RT model for UV/Vis, BRDFs, correlated-k or spectral band models |  
-|Sentinel 3  | biological monitoring, oceanic weather warnings, assimilation for NWP | sea surface height, significant wave height, ocean/land color, sea/land surface temperature | Radar Altimeter, MERIS (Medium Resolution Imaging Spectrometer, 0.413, 0.443, 0.490, 0.510, 0.560, 0.620, 0.665, 0.681, 0.709, 0.754, 0.761, 0.779, 0.865, 0.885, 0.900, 1.020 um), AATSR (Advanced Along Track Scanning Radiometer, 0.555, 0.659, 0.865, 1.375, 1.61, 2.25, 3.74, 10.85, 12.0 um) | radar simulator, solar and thermal radiances |  +|Sentinel 3  | biological monitoring, oceanic weather warnings, assimilation for NWP | sea surface height, significant wave height, ocean/land color, sea/land surface temperature | Radar Altimeter, MERIS (Medium Resolution Imaging Spectrometer, 0.413, 0.443, 0.490, 0.510, 0.560, 0.620, 0.665, 0.681, 0.709, 0.754, 0.761, 0.779, 0.865, 0.885, 0.900, 1.020 um), AATSR (Advanced Along Track Scanning Radiometer, 0.555, 0.659, 0.865, 1.375, 1.61, 2.25, 3.74, 10.85, 12.0 um) | radar simulator, solar and thermal radiances |  
-|Sentinels 4/5  |stratospheric ozone and surface UV-radiation, Air quality, Climate  | tropospheric composition (radiance spectra in various channels to measure CO, O3, CH4, aerosols)  |UV-Visible spectrometer, SWIR spectrometer, thermal IR spectrometer, (possibly mm-wave of IR limb sounder)  | optimal estimation retrieval: high spectral resolution radiances UV/VIS/IR, (sub-mm limb radiances), LBL model  | +|Sentinels 4/5  |stratospheric ozone and surface UV-radiation, Air quality, Climate  | tropospheric composition (radiance spectra in various channels to measure CO, O3, CH4, aerosols)  |UV-Visible spectrometer, SWIR spectrometer, thermal IR spectrometer, (possibly mm-wave of IR limb sounder)  | optimal estimation retrieval: high spectral resolution radiances UV/VIS/IR, (sub-mm limb radiances), line-by-line model  |
===== Venus Express / Mars Express ===== ===== Venus Express / Mars Express =====
-Several instruments for remotes sensing of Venus and Mars are used, that are also used for remote sensing of the Earth. The requirements for radiative transfer modelling are similar. The major difference is, that the atmospheric composition is completely different on the Venus and on Mars. Realistic assumptions are needed for appropriate simulations. +Several instruments for remote sensing of Venus and Mars are used, that are also used for remote sensing of the Earth. The requirements for radiative transfer modeling are similar. The major difference is, that the atmospheric composition is completely different on Venus and on Mars. Realistic assumptions are needed for appropriate simulations.
-The following web-sites include required information about the instrumentation of the mission. The instruments that require radiative transfer modeling are listed in the report. +The following web-sites include required information about the instrumentation of the missions. The instruments that require radiative transfer modeling are listed in {{:rt_requirements.pdf|WP1200 report}}.
http://www.esa.int/SPECIALS/Mars_Express/ http://www.esa.int/SPECIALS/Mars_Express/
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http://www.esa.int/SPECIALS/Venus_Express/ http://www.esa.int/SPECIALS/Venus_Express/
-===== Mars Express ===== 
-^mission^objective^measured quantities^instrumentation^FM requirements^ 
-|  | | | | | | 
- 
-===== Aurora Programme ===== 
- 
-^mission^objective^measured quantities^instrumentation^FM requirements^ 
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