A New L-Band Passive Radiometer for Earth Observation: SMOS-High Resolution (SMOS-HR)

  • N. J. RODRIGUEZ-FERNANDEZ
  • , E. ANTERRIEU
  • , F. CABOT
  • , J. BOUTIN
  • , G. PICARD
  • , T. PELLARIN
  • , O. MERLIN
  • , J. VIALARD
  • , F. VIVIER
  • , J. COSTERASTE
  • , B. PALACIN
  • , R. RODRIGUEZ-SUQUET
  • , T. AMIOT
  • , A. KHAAZAL
  • , B. ROUGE
  • , J. M. MOREL*
  • , M. COLOM
  • , T. DECOOPMAN
  • , N. JEANNIN
  • , R. CAUJOLLE
  • M. J. ESCORIHUELA, A. Al BITAR, P. RICHAUME, A. MIALON, C. SUERE, Y. H. KERR
*Corresponding author for this work

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Researchpeer-review

14 Citations (Scopus)

Abstract

The European Space Agency (ESA) Soil Moisture and Ocean Salinity (SMOS) has been providing the longest consistent data record of passive L-band (1.4 GHz) observations for more than ten years. SMOS, as well as the NASA missions SMAP and Aquarius have demonstrated the interest of L-band observations for land, ocean and cryosphere studies. The continuity of L-band observations must be assured taking into account that the spatial resolution (∼ 40 km) of SMOS and SMAP is too coarse for some applications. Disaggregation strategies can be implemented but using airborne data, we show that the quality of the downscaled data cannot match that of an instrument with higher native resolution. The goal of the SMOS-HR (High Resolution) mission is to ensure the continuity of L-band observations while increasing the native resolution to 10 km. SMOS-HR will carry an array of ∼ 230 antennas to perform aperture synthesis. The antenna distribution has been optimized to reduce the aliasing in the reconstructed images and SMOS-HR will incorporate advanced on-board Radio Frequency Interferences (RFI) mitigation techniques.
Original languageEnglish
Title of host publication2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020, Proceedings
PublisherIEEE
Pages5978-5981
Number of pages4
ISBN (Electronic)9781728163741
ISBN (Print)9781728163758
DOIs
Publication statusPublished - 26 Sept 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

  • L-Band
  • Passive Radiometry
  • Soil Moisture and Ocean Salinity satellite
  • Vegetation Optical Depth

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