Reconstruction of the weather on February 10, 1936 at 12 UTC
Reconstructing the past 200 years of global weather

A new version 3 of the NOAA-CIRES-DOE 20th Century Reanalysis (20CRv3) recreates a 180-year history of temperature, precipitation, winds, humidity, and many other variables from below the land surface to the top of the atmosphere.

A two-layer network model for Bayesian inference of the coupled regional flood duration scaling and atmospheric dynamic scaling of the flood duration.
Governance of Long-Duration Floods

A Bayesian network inference model was developed to account for and predict the likelihood of floods of various durations using physics informed predictors. The model provides a deeper understanding of the nexus of antecedent flow regime, atmospheric blocking, and moisture transport/release mechanisms.

Schematic representation of the atmospheric “non-frontal” component
New perspectives regarding Gulf Stream and Kuroshio Extension influence on the atmosphere

New research illustrates that the key to recognizing the influence of the Gulf Stream and Kuroshio Extension on the seasonal mean and longer-term climate is through a proper understanding of how the ocean influences atmospheric fronts.

Boxplots showing how well model forecasts capture the observations between the two winter seasons, 2016–17 minus 2015–16,
California winter precipitation linked to the Arctic Oscillation

California precipitation is well forecast when the Arctic Oscillation phase is correctly captured by a state-of-the-art forecast system, GloSea5.

Schematic representation of proposed dynamical mechanisms in summer.
The influence of Arctic amplification on mid-latitude summer circulation

Researchers conduct a comprehensive review of research on summer weather stalling, focusing on the influence of Arctic amplification and how it could interact with other factors influenced by climate change.

Subsurface ocean heat content anomalies regressed onto low-pass filtered time series of eastern tropical Pacific sea surface temperature anomalies. The black boxes outline the eastern (10°–20°S, 100°–120°E) and western (10°–20°S, 50°–90°E) Indian Ocean, showing the east-west dipole structure
Pacific influences decadal Indian Ocean heat content via two distinct mechanisms

In two recent papers, Jin and coauthors investigated how decadal variations of subsurface ocean heat content (50–300 m) in the Indian Ocean respond to conditions in the Pacific region.

Welcome to the US Climate Variability and Predictability Program

Review of US GO-SHIP (Global Ocean Shipboard Hydrographic Investigations Program). An OCB and US CLIVAR Report

In 2018, an external review committee convened to assess US GO-SHIP, an affiliate of international GO-SHIP, which performs global ship-based decadal surveys to collect, document, and store high precision and full depth hydrographic and biogeochemical data from the global ocean. The review committee assessed program planning, progress, and opportunities in collecting, providing, and synthesizing high quality hydrographic data to advance the scientific research goals of US CLIVAR and OCB.

December POS Panel Webinar Series

Brady Ferster (Laboratoire de l'Océanographie et du Climat Institut Pierre-Simon Laplace) will present at the next POS Panel webinar series on December 5, 2019. Join us for his presentation entitled "The Role of Teleconnections in Southern Ocean SST Variability"

2020 Call for US CLIVAR Panel Member Nominations

2019 Summit group photo

The US CLIVAR Scientific Steering Committee SSC seeks qualified individuals to serve on its three Panels to enhance current strengths while adding expertise in new areas. Qualified nominees are expected to represent the broader interests of the research community, be willing and able to engage in scientific as well as programmatic discussions to advance Panel activities, and work with other members of the US and international CLIVAR communities. The deadline for submission is December 20, 2019

Surface Currents in the Coupled Ocean-Atmosphere System Workshop

Registration is now open for the Surface Currents in the Coupled Ocean-Atmosphere System Workshop, February 22-23, 2020 in La Jolla, CA. Abstract submissions are due December 16, 2019.

Workshop on Societally-Relevant Multi-Year Climate Predictions

Registration is now open for the Multi-Year Workshop. Abstracts are due January 10, 2020.

AMS 100th Annual Meeting, CLIVAR sessions of interest

AMS 100th Anniversary

The American Meteorological Society will be hosting its 100th Annual Meeting January 12-16 in Boston, Massachusetts. The annual theme for the upcoming AMS Annual Meeting is The AMS Past, Present and Future: Linking Information to Knowledge to Society (LINKS). Included are a number of sessions relevant to the US CLIVAR community.

CLIVAR town hall & sessions at 2020 Ocean Sciences Meeting

2020 Ocean Sciences Meeting

The 2020 Ocean Sciences Meeting will be held February 16-21 in San Diego, California. We have started to put together a list of US CLIVAR-sponsored sessions along with Town Halls, events, workshops, and other sessions that may be of interested to the US CLIVAR community. This is an ongoing list that will be updated regularly.

CLIVAR-relevant sessions at 2019 AGU Fall Meeting

The 2019 AGU Fall Meeting will be held from December 9-13 in San Francisco, California. In preparation for the meeting, we have compiled a list of sessions and town halls that are relevant to the community and organized by our Panels, Working Groups, and community members. The list of sessions is not intended to be exhaustive but to help digest the collection of the hundreds of sessions and events.