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17-May-2012

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Chapter 4 Frequently Asked Questions This chapter questions Question 4.1 : Which are the innovative characteristics of the Envisat Radar instrument? Question 4.2 : Why is it that RA-2 does not lose track whatever is the surface type underneath? Question 4.3 : Why are there three different Ku resolutions on RA-2? Question 4.4 : Is the resolution change done manually or automatically? Question 4.5 : Which is the advantage of having a dual frequency instrument? Question 4.6 : Why two extra DFT samples have been included on RA-2? Question 4.7 : Why are individual echoes provided by RA-2? Question 4.8 : Which are the quality flags to be used for editing RA2 and MWR data? Question 4.9 : What's the use of the RA-2 peakiness? Question 4.10 : What's the RA2 reference point for the derivation of the range? Question 4.11 : What is the set of criteria that can be used to exclude "non-ocean" data? Question 4.12 : What's the design of the EnviSat MWR? Question 4.13 : How has the MWR performance been optimised on EnviSat? Question 4.14 : How is calibration on MWR performed? Question 4.15 : How is the time window delay calculated? Question 4.16 : How is the sigma0 scaling factor calculated? Question 4.17 : How is the datation calculated? Question 4.18 : How is MWR data from one channel aligned to the data from the second channel? Question 4.19 : What is Retracking ? Question 4.20 : What does the Slope Correction do ? Question 4.21 : What Is the Delta Doppler Correction ?

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Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry

Chapter 4Frequently Asked Questions

Chapter 4
Frequently Asked Questions