Impact of the antenna characteristics on sea surface parameters estimated from low- and high-resolution satellite altimetry

Details

• Journal Title:
  Advances in Space Research
• Personal Author:
  Buchhaupt, Christopher ; Egido, Alejandro ; Dinardo, Salvatore ; Maraldi, Claire ; Moreau, Thomas ; Fenoglio, Luciana
• NOAA Program & Office:
  NESDIS (National Environmental Satellite, Data, and Information Service) ; CISESS (Cooperative Institute for Satellite Earth System Studies)
• Description:
  In this study, we present an extension to existing numerical retrackers of synthetic-aperture radar (SAR) altimetry signals considering a non Gaussian antenna characteristic. To our knowledge at the time of writing, this manuscript presents the most consistent retrieval of geophysical parameters compared to Low Resolution Mode (LRM) retracking results. The novelty is an approximation of the theoretical antenna pattern with a sum of three Gaussian functions to mitigate the sea surface height estimation errors for Sentinel-3A and Sentinel-6A in SAR mode.
• Source:
  Advances in Space Research, 75(8), 6140-6157
• DOI:
  https://doi.org/10.1016/j.asr.2025.02.056
• ISSN:
  0273-1177
• Format:
  PDF
• Publisher:
  Elsevier BV
• Document Type:
  Journal Article
• Funding:
  Grant no. NA24NESX432C0001 ; Grant no. NA19NES4320002
• License:
  https://creativecommons.org/licenses/by/4.0/
• Rights Information:
  CC BY
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha-512:a0c5e43888a8fa30039c44e34397df78a17597c1d292b2bde1411b75fa625903987b407cff8ebc92364f83e430b7aa4e817d6137ff1f6a2ac21f0ae7cb2bf32e
• Download URL:
  https://repository.library.noaa.gov/view/noaa/70852/noaa_70852_DS1.pdf
• File Type:
  [PDF - 4.33 MB ]