Rodriguez-Fernandez N.J. auteur aut IRD Anterrieu E. auteur aut IRD Cabot F. auteur aut IRD Boutin J. auteur aut IRD Picard G. auteur aut IRD Pellarin T. auteur aut IRD Merlin O. auteur aut IRD Vialard Jérôme auteur aut IRD Vivier F. auteur aut IRD Costeraste J. auteur aut IRD Palacin B. auteur aut IRD Rodriguez-Suquet R. auteur aut IRD Amiot T. auteur aut IRD Khaazal A. auteur aut IRD Rouge B. auteur aut IRD Morel J.M. auteur aut IRD Colom M. auteur aut IRD Decoopman T. auteur aut IRD Jeannin N. auteur aut IRD Caujolle R. auteur aut IRD Escorihuela M.J. auteur aut IRD Al Bitar A. auteur aut IRD Richaume P. auteur aut IRD Mialon A. auteur aut IRD Suere C. auteur aut IRD Kerr Y.H. auteur aut IRD text bookSection eng text/pdf born digital access 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. specialized AMAZONIE 126 066 062 032 5978-2981 Piscataway IEEE 2020 IGARRS.International Geoscience and Remote Sensing Symposium, Waikoloa (USA), 2020/09/26-2020/10/02 https://www.documentation.ird.fr/hor/fdi:010084425 10.1109/IGARSS39084.2020.9324685 978-1-7281-6375-8 [F B010084425] https://www.documentation.ird.fr/hor/fdi:010084425 https://www.documentation.ird.fr/intranet/publi/2023-01/010084425.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2022-02-16 2025-02-24 fdi:010084425 fre