edu.ucar.opensky::articles:24731 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T06:39:18.504296 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7fr0122 Mapping the dynamics of the South Asian Monsoon using CYGNSS's Level-1 signal coherency 2020-12-03T00:00:00Z publication https://n2t.org/ark:/85065/d7fr0122 https://doi.org/10.1109/JSTARS.2020.3042170 Al-Khaldi, Mohammad author Shah, R. author Chew, Clara C. author Johnson, J. T. author Gleason, Scott author UCAR/NCAR - Library publisher A method for mapping the dynamics of the South Asian monsoon season is proposed based on the use of the coherence of CYGNSS Level 1 delay-Doppler Map measurements. Because the apparent coherence of the specular forward scattering observed by CYGNSS provides information on the presence of inland water, it can be related to different phases of the monsoon season. Results reported from 2017 to 2020 illustrate inter-annual variations in the seasonal monsoon, and show high degrees of correlation with SMAP soil moisture maps over the Indian subcontinent. Comparisons with precipitation information from the global precipitation measurement mission also show relationships indicative of the monsoon's dry and wet phases. The analysis presented in this work highlights the potential of using spaceborne GNSS-R systems for the operational mapping of monsoon dynamics. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation