For a microwave radiometer, the two critical parts are the antenna reflector and the radiometric line.īoth are tested in the frame of a realistic environment provided by accurate generation of the geophysical situation (scene generator) and detailed simulations of the measurement process (Antenna Processing and Instrument Module). Accurate: it benefits from a 15 years experience on every aspects of the end-to-end simulation, including the atmospheric physic, the instrumental measurements principles and the ground processingĬollaboration with Informus for Eumetsat on the definition of a wet tropospheric correction for Sentinel-3.Ī major source of uncertainty for Sea Surface Height estimates from radar altimetry is the wet tropospheric correction (WTC).Realistic: the high-resolution (~ 1 km) geophysical scenes on any surfaces are computed from the combination up-to-date NWP analysis and Radiative Transfert Model.Flexible: adaptable to any instrumental concept (CubeSat, Nadir, Imager, Sounder).The comparison between the known reference and the output from a ground prototype processing allows to quantify the expected performances of a given design and to verify if the mission requirements are satistified (Performance Analysis). The spatial and temporal variability of water vapour is such that an instantaneous estimation of its impact is needed. To provide the observations required for the WTC is the primary role of the nadir looking Microwave Radiometer (MWR) embedded into the altimetry missions on board Sentinel-3. In this context, requirements on accuracy, sensitivity, and long term stability of the atmospheric water vapour observations are particularly strong since altimetry missions require a precision better than 1.4 cm in WTC (RMS) and a temporal stability better than 0.3 mm/year. In this context, Informus and Fluctus SAS provide scientific development, prototyping, validation and quality definition for Copernicus Sentinel-3 Microwave Radiometer (MWR) Total Column Water Vapour (TCWV), Wet Tropospheric Correction (WTC) and Liquid Water Path (LWP) products.
The objective is to implement and validate a 1D-Var retrieval of TCWV, WTC and LWP for Sentinel-3 MWR.
If you are using Maxthon or Brave as a browser, or have installed the Ghostery add-on, you should know that these programs send extra traffic to our servers for every page on the site that you browse.The most common causes of this issue are: The proposed approach will allow for a physical retrieval of the three above properties, including a-posteriori retrieval uncertainties for all parameters.Your IP address has been temporarily blocked due to a large number of HTTP requests. Some unofficial phone apps appear to be using GameFAQs as a back-end, but they do not behave like a real web browser does.Using GameFAQs regularly with these browsers can cause temporary and even permanent IP blocks due to these additional requests.
This triggers our anti-spambot measures, which are designed to stop automated systems from flooding the site with traffic. Continued use of these apps may cause your IP to be blocked indefinitely.
0 kommentar(er)
