February 20, 2025
Dr. Hind Oubanas, CNES’s Surface Water and Ocean Topography (SWOT) Hydrology Science Lead, gives an overview of SWOT river discharge data products and algorithm development. Specifically, the Dr. Oubanas describes the work of the SWOT Discharge Algorithms Working Group (DAWG), detailing how river discharge is derived from SWOT observations, and what products are being developed and validated. For more information see:
SWOT Discharge Algorithm Working Group Sword of Science River Discharge Dataset Release
SWOT Data Products Overview
Tutorials via the PO.DAAC Cookbook: SWOT Chapter
Community code via the SWOT Community GitHub Repository
October 7, 2024
Animation of daily wind speed measurements from the Compact Ocean Wind Vector Radiometer (COWVR) instrument during its first year of operation. COWVR was developed at the Jet Propulsion Laboratory and is installed on the International Space Station, where it has been collecting measurements since January 2022. COWVR aims to demonstrate new low-cost microwave sensor technologies for weather applications.
September 20, 2024
Animation of sea surface salinity from 1 April 2015 to 27 August 2024 based on the 8-day running mean version 6.0 Level 3 NASA Soil Moisture Active Passive (SMAP) dataset from Remote Sensing Systems (RSS). The dataset can be accessed from the PO.DAAC Portal at https://podaac.jpl.nasa.gov/dataset/SMAP_RSS_L3_SSS_SMI_8DAY-RUNNINGMEAN_V6 (DOI:10.5067/SMP60-3SPCS).
September 10, 2024
Follow along with Dr. Cassie Nickles for a workshop on the Surface Water and Ocean Topography (SWOT) satellite presented at the Hacking Limnology AEMON-J July 2024 Virtual Summit! In this workshop, participants are introduced to SWOT and the various ways to access and utilize its data products, via Jupyter Notebooks and data transformation tools. Participants can utilize a Binder environment from the below GitHub repository to explore SWOT data. All tutorials use the Python coding language, but no prior Python experience is necessary.
GitHub Repository
September 5, 2024
Animation of the daily watermask over the period of 1 January 2021 to 10 August 2024, produced using the CYGNSS level 3 daily watermask version 3.2 dataset which was developed by CYGNSS investigators in the Department of Civil and Environmental Engineering at the University of California, Berkeley. The dataset provides the time-tagged and geolocated daily watermask parameter from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation, and it can be accessed from the PO.DAAC Portal at https://doi.org/10.5067/CYGNS-3WD32 (DOI: 10.5067/CYGNS-3WD32).
September 4, 2024
Dr. Tamlin Pavelsky, NASA’s Surface Water and Ocean Topography (SWOT) Hydrology Science Lead, gives an overview of SWOT hydrology data products. Specifically, the Pixel Cloud (L2_HR_PIXC) netCDF, River (L2_HR_RiverSP) and Lake (L2_HR_LakeSP) Single Pass Vector shapefiles, and the Raster (L2_HR_Raster) netCDF products are discussed. For more information see:
July 16, 2024
Animation of the calculated ocean surface latent (top) and sensible (bottom) heat fluxes over the period of 1 August 2018 to 8 June 2024, produced using the CYGNSS Level 2 Ocean Surface Heat Flux Climate Data Record Version 3.2, which provides the time-tagged and geolocated ocean surface heat flux parameters with 25 x 25 kilometer resolution using wind speed data provided by the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. The dataset can be accessed from the PO.DAAC Portal at https://doi.org/10.5067/CYGNS-L2H32 (DOI: 10.5067/CYGNS-L2H32).
July 16, 2024
Animation of the microplastic concentration number density over the period of 16 August 2018 to 22 May 2024, produced using the CYGNSS Level 3 Ocean Microplastic Concentration Version 3.2 dataset, which provides the time-tagged and geolocated microplastic concentration parameters on a daily temporal and 0.25-degree latitude/longitude spatial grid with 30-day, 1 degree latitude/longitude feature resolution from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. The dataset can be accessed from the PO.DAAC Portal at https://doi.org/10.5067/CYGNS-L3P32 (DOI: 10.5067/CYGNS-L3P32).
July 16, 2024
Animation of the daily soil moisture over the period of 1 August 2018 to 9 June 2024, produced using the CYGNSS Level 3 Soil Moisture Version 3.2 dataset, which provides the time-tagged and geolocated daily and sub-daily soil moisture parameters from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. The dataset can be accessed from the PO.DAAC Portal at https://doi.org/10.5067/CYGNU-L3S32 (DOI: 10.5067/CYGNU-L3S32).
June 11, 2024
The High-level Tool for Interactive Data Extraction, or HiTIDE, is PO.DAAC’s interactive tool for subsetting and downloading popular PO.DAAC Level 2 swath datasets.