USER MANUAL
ALES+ SAR Retracker – TUM
Owner: Technical University of Munich
The P-PRO Service ALES+ SAR Retracker – TUM (Adaptive Leading Edge Subwaveform retracker, version +, for SAR), is a web platform that provides the capability to process on line and on demand either official CryoSat-2 L1b products or Sentinel-3 WAT L1b products to produce ALES+ SAR L2 NetCDF products.
ALES+ SAR Retracker – TUM is a subwaveform retracker for open ocean and coastal zone SAR altimetry data. It adopts a simplified version of the Brown-Hayne functional form (which is the functional form for pulse-limited altimetry) as an empirical retracker to track the leading edge of the waveform. A specific sea state bias correction is also computed and shall be used when correcting the estimated range to compute the sea surface height.
ALES+ SAR Retracker – TUM is an algorithm under research & development, which is subject to updates.
Different phases of the ALES+ SAR Retracker – TUM development have been funded by the following ESA Projects:
* Sea Level Climate Change Initiative (ESA Contract No. 4000126561/19/I-NB)
* Baltic+ Sea Level (ESA Contract No. 4000126590/19/I/BG)
* HYDROCOASTAL (ESA Contract No. 4000129872/20/I-DT)
Feedbacks concerning the algorithm can be provided to its author, Marcello Passaro (marcello.passaro@tum.de).
Further information on this algorithm can be found in [http://doi.org/10.5270/esa.BalticSEAL.ATBDV1.1|http://doi.org/10.5270/esa.BalticSEAL.ATBDV1.1].
When using the output of ALES+ SAR Retracker – TUM for any scientific abstract/publication, please also cite Passaro et al. (2018):
Passaro, M., Rose, S. K., Andersen, O. B., Boergens, E., Calafat, F. M., Dettmering, D., & Benveniste, J. (2018). ALES+: Adapting a homogenous ocean retracker for satellite altimetry to sea ice leads, coastal and inland waters. Remote Sensing of Environment, 211, 456–471.
To request access to this processor:
- Register for free on the ESA Altimetry Virtual Lab if not done already.
- Complete the P-PRO (for systematic processing) or P-PRO ON DEMAND (for on-demand processing) service request form on the EarthConsole® Webapp. Please make sure to indicate in the service request form whether you wish to request an ESA Network of Resources sponsorship for your project.
- If choosing the ESA NoR sponsorship, we’ll assess the request and provide the NoR form for your review and approval.
- If not opting for an ESA NoR sponsorship, we’ll send a service quotation with payment instructions for your approval.
For further info, please check this pricing list which cover most of the typical users’ requests.
For any question, bug-reports or support on the processor please contact altimetry.info@esa.int and support@earthconsole.eu.
