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Sources of Subseasonal-To-Seasonal Predictability of Atmospheric Rivers and Precipitation in the Western United States

Journal Article · · Journal of Geophysical Research: Atmospheres
DOI:https://doi.org/10.1029/2020jd034053· OSTI ID:1772227
 [1];  [2];  [3];  [3];  [3];  [3];  [4]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Lawrence Berkeley National Laboratory
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Iowa State Univ., Ames, IA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
+ Show Author Affiliations
Atmospheric rivers (ARs) account for a large portion of winter precipitation in the western US. To evaluate the sources of AR and precipitation predictability at subseasonal-to-seasonal timescales, we examine the relationships between two climate modes, the El Niño/Southern Oscillation (ENSO) and Madden-Julian oscillation (MJO), and winter hydroclimate in the western US. Our analysis uses a large ensemble of the Weather Research and Forecast (WRF) model simulations from 1981 to 2017, facilitating the assessment of uncertainty in climate mode-AR relationship due to climate variability and short length of observations. Over the North Pacific basin, we find ENSO-related latitudinal shifts of ARs, but ENSO has little effect on basin-wide averaged AR frequency. Over the western US, there is some uncertainty in the ENSO-AR connection due to the impacts of ENSO indices and datasets. However, extreme El Niño events defined by the ENSO longitude index are consistently linked to increased landfalling AR activity. The MJO can lead to significantly enhanced or suppressed landfalling AR activity in the large-ensembles, depending on the phase of MJO and time lag, while observations are too short in length to robustly show this signal. ENSO substantially modulates the MJO-AR relationship, triggering variegated responses of landfalling ARs and AR precipitation in La Niña and El Niño years. Our findings highlight the need to evaluate concurrent effects of different climate modes on ARs and precipitation, and may shed light on a path toward more accurate subseasonal-to-seasonal prediction of ARs and precipitation over the western US.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Science (SC), Biological and Environmental Research (BER). Earth and Environmental Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1772227
Alternate ID(s):
OSTI ID: 1827989
Journal Information:
Journal of Geophysical Research: Atmospheres, Journal Name: Journal of Geophysical Research: Atmospheres Journal Issue: 6 Vol. 126; ISSN 2169-897X
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (66)

A projection of changes in landfalling atmospheric river frequency and extreme precipitation over western North America from the Large Ensemble CESM simulations: ATMOSPHERIC RIVERS AND CLIMATE CHANGE journal February 2016
Modeling the MJO in a cloud‐resolving model with parameterized large‐scale dynamics: Vertical structure, radiation, and horizontal advection of dry air journal January 2016
Modulation of the boreal wintertime Madden-Julian oscillation by the stratospheric quasi-biennial oscillation: Modulation of the MJO by the QBO journal February 2016
Simulating the Pineapple Express in the half degree Community Climate System Model, CCSM4: SIMULATING PINEAPPLE EXPRESS CCSM4 journal July 2016
Review of Tropical-Extratropical Teleconnections on Intraseasonal Time Scales: The Subseasonal to Seasonal (S2S) Teleconnection Sub-Project journal October 2017
Advancing atmospheric river forecasts into subseasonal-to-seasonal time scales: Forecasting ARs at S2S Time Scales journal July 2017
Quantifying the role of atmospheric rivers in the interior western United States journal July 2012
Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States journal December 2008
A quasi-biennial oscillation in the intensity of the intra-seasonal oscillation journal April 1990
Changes in atmospheric rivers and moisture transport over the Northeast Pacific and western North America in response to ENSO diversity journal March 2017
Winter precipitation characteristics in western US related to atmospheric river landfalls: observations and model evaluations journal March 2017
Prediction of atmospheric rivers over the North Pacific and its connection to ENSO in the North American multi-model ensemble (NMME) journal November 2017
Multi-scale interactions in a high-resolution tropical-belt experiment and observations journal July 2018
Simulating precipitation and temperature in the Lake Champlain basin using a regional climate model: limitations and uncertainties journal September 2019
Maximizing ENSO as a source of western US hydroclimate predictability journal October 2019
Characteristics of southern California atmospheric rivers journal May 2017
The contribution of atmospheric rivers to precipitation in Europe and the United States journal March 2015
Forcing of the quasi-biennial oscillation from a broad spectrum of atmospheric waves: SIMULATION OF THE QBO journal April 2002
Madden-Julian Oscillation journal January 2005
Atmospheric rivers induced heavy precipitation and flooding in the western U.S. simulated by the WRF regional climate model: ATMOSPHERIC RIVER, PRECIPITATION, FLOOD journal February 2009
Diversity of ENSO Events Unified by Convective Threshold Sea Surface Temperature: A Nonlinear ENSO Index journal September 2018
The Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Quantifying Uncertainties in Atmospheric River Climatology journal December 2019
Experimental Subseasonal‐to‐Seasonal (S2S) Forecasting of Atmospheric Rivers Over the Western United States journal November 2019
Progress in Simulating the Quasi‐Biennial Oscillation in CMIP Models journal April 2020
California from drought to deluge journal June 2017
Increasing precipitation volatility in twenty-first-century California journal April 2018
Insights from Earth system model initial-condition large ensembles and future prospects journal March 2020
Precipitation regime change in Western North America: The role of Atmospheric Rivers journal July 2019
Skillful empirical subseasonal prediction of landfalling atmospheric river activity using the Madden–Julian oscillation and quasi-biennial oscillation journal February 2018
Responses and impacts of atmospheric rivers to climate change journal March 2020
An Improved In Situ and Satellite SST Analysis for Climate journal July 2002
Detection of a 40–50 Day Oscillation in the Zonal Wind in the Tropical Pacific journal July 1971
Description of Global-Scale Circulation Cells in the Tropics with a 40–50 Day Period journal September 1972
The Direct Response to Tropical Heating in a Baroclinic Atmosphere journal February 1995
A Proposed Algorithm for Moisture Fluxes from Atmospheric Rivers journal March 1998
An All-Season Real-Time Multivariate MJO Index: Development of an Index for Monitoring and Prediction journal August 2004
Modulation of the Global Atmospheric Circulation by Combined Activity in the Madden–Julian Oscillation and the El Niño–Southern Oscillation during Boreal Winter journal August 2010
Moist Thermodynamics of the Madden–Julian Oscillation in a Cloud-Resolving Simulation journal November 2011
Understanding ENSO Diversity journal June 2015
“The Stippling Shows Statistically Significant Grid Points”: How Research Results are Routinely Overstated and Overinterpreted, and What to Do about It journal December 2016
The Weather Research and Forecasting Model: Overview, System Efforts, and Future Directions journal August 2017
Environment and the Lifetime of Tropical Deep Convection in a Cloud-Permitting Regional Model Simulation journal August 2013
The Impact of the QBO on MJO Convection in Cloud-Resolving Simulations journal March 2019
The Impact of the El Niño–Southern Oscillation and Atlantic Meridional Mode on Seasonal Atlantic Tropical Cyclone Activity journal July 2014
Dynamics of Landfalling Atmospheric Rivers over the North Pacific in 30 Years of MERRA Reanalysis journal September 2014
Resolution and Dynamical Core Dependence of Atmospheric River Frequency in Global Model Simulations journal April 2015
The Influence of the Madden–Julian Oscillation on Northern Hemisphere Winter Blocking journal June 2016
All-Season Climatology and Variability of Atmospheric River Frequencies over the North Pacific journal July 2016
Predictability of Week-3–4 Average Temperature and Precipitation over the Contiguous United States journal April 2017
The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) journal July 2017
Precipitation Prediction Skill for the West Coast United States: From Short to Extended Range journal December 2018
Ridging Associated with Drought across the Western and Southwestern United States: Characteristics, Trends, and Predictability Sources journal April 2020
How MJO Teleconnections and ENSO Interference Impacts U.S. Precipitation journal June 2020
Representation of Modes of Variability in Six U.S. Climate Models journal September 2020
An Object-Oriented Approach to Investigate Impacts of Climate Oscillations on Precipitation: A Western United States Case Study journal April 2015
Evaluation of Atmospheric River Predictions by the WRF Model Using Aircraft and Regional Mesonet Observations of Orographic Precipitation and Its Forcing journal July 2018
Global Assessment of Atmospheric River Prediction Skill journal February 2018
Climate Model Evaluation in the Presence of Observational Uncertainty: Precipitation Indices over the Contiguous United States journal July 2019
Large-Scale Influences on Atmospheric River–Induced Extreme Precipitation Events along the Coast of Washington State journal September 2020
Does the Madden–Julian Oscillation Influence Wintertime Atmospheric Rivers and Snowpack in the Sierra Nevada? journal February 2012
Climatological Characteristics of Atmospheric Rivers and Their Inland Penetration over the Western United States journal February 2014
Skillful Wintertime North American Temperature Forecasts out to 4 Weeks Based on the State of ENSO and the MJO* journal February 2014
Skillful All-Season S2S Prediction of U.S. Precipitation Using the MJO and QBO journal October 2020
Atmospheric Rivers, Floods and the Water Resources of California journal March 2011
TempestExtremes: a framework for scale-insensitive pointwise feature tracking on unstructured grids journal January 2017
Atmospheric River Tracking Method Intercomparison Project (ARTMIP): project goals and experimental design journal January 2018

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