Catalog of landfalling atmospheric rivers along the western coast of North America

We have created  seven-decade-long catalog of atmospheric rivers (ARs) making landfall along the North American west coast based on NCEP Reanalysis (SIO-R1). This catalog provides information on AR magnitude, landfall location, and orientation from 1948 to the near-present.  Understanding the behavior of Atmospheric Rivers and links to large-scale climate variability is critical for water resource management in California and the western US.  The catalog is currently being used in many research applications to improve our understanding and predictability of ARs and associated precipitation along the coast. This dataset is described in Gershunov et al. (2017).  Please cite this reference if you use this dataset, which can be accessed using the link below. 

Download the SIO R1 Catalog


High Resolution record of coastal low cloudiness spanning 20-years

We have developed a high-resolution dataset of coastal low cloudiness (CLC) spanning 20-years using measurements from the NASA GOES satellite.  This high resolution record has, and will continue to play, a critical role in monitoring low clouds at finer spatial resolution (1-4 km) and shorter timescales (half hourly) than was previously available. This dataset is described in  Clemesha et al. (2016).  Please cite this reference if you use this dataset, which can be accessed using the link below.  

Download the GOES derived record of Coastal Low Cloudiness (CLC) including 1 km cloud albedo for San Clemente Island (2020)