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Title: Increasing water cycle extremes in California and relation to ENSO cycle under global warming

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms9657· OSTI ID:1229998
 [1];  [2];  [2];  [1];  [2];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Utah State Univ., Logan, UT (United States)

California has experienced its most severe drought in recorded history since the winter of 2013-2014. The long duration of drought has stressed statewide water resources and the economy, while fueling an extraordinary increase in wildfires. The effects of global warming on the regional climate include a hotter and drier climate, as well as earlier snowmelt, both of which exacerbate drought conditions. However, connections between a changing climate and how climate oscillations modulate regional water cycle extremes are not well understood. Here we analyze large-ensemble simulations of future climate change in California using the Community Earth System Model version 1 (CESM1) and multiple climate models participating in the Coupled Model Intercomparison Project Phase 5 (CMIP5). Both intense drought and excessive flooding are projected to increase by at least 50% toward the end of the 21st century. Furthermore, the projected increase in water cycle extremes is associated with tighter relation to El Niño and Southern Oscillation (ENSO), particularly extreme El Niño and La Niña events, which modulates California’s climate not only through its warm and cold phases, but also ENSO’s precursor patterns.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1229998
Report Number(s):
PNNL-SA-112803; KP1703020
Journal Information:
Nature Communications, Vol. 6, Issue 4; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 92 works
Citation information provided by
Web of Science

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A tale of two California droughts: Lessons amidst record warmth and dryness in a region of complex physical and human geography: A TALE OF TWO CALIFORNIA DROUGHTS journal November 2015
Role of ocean evaporation in California droughts and floods: OCEAN EVAPORATION AND CALIFORNIA DROUGHT journal June 2016
Abiotic habitat thresholds for salmonid over-summer survival in intermittent streams journal February 2017
A late Wisconsin (32-10k cal a BP) history of pluvials, droughts and vegetation in the Pacific south-west United States (Lake Elsinore, CA): CALIFORNIA'S GLACIAL HISTORY OF PLUVIALS, DROUGHTS AND VEGETATION journal February 2018
Predation on oysters is inhibited by intense or chronically mild, low salinity events: Low salinity stress reduces predation journal September 2018
Does global warming amplify interannual climate variability? journal June 2018
Drought in Southern California coastal sage scrub reduces herbaceous biomass of exotic species more than native species, but exotic growth recovers quickly when drought ends journal February 2019
ENSO's Changing Influence on Temperature, Precipitation, and Wildfire in a Warming Climate journal September 2018
Increased Variability of Thailand's Chao Phraya River Peak Season Flow and Its Association With ENSO Variability: Evidence From Tree Ring δ 18 O journal May 2019
Evapotranspiration Trends (1979–2015) in the Central Valley of California, USA: Contrasting Tendencies During 1981–2007 journal August 2018
California from drought to deluge journal June 2017
Increasing precipitation volatility in twenty-first-century California journal April 2018
El Niño and La Niña induced volatility spillover effects in the U.S. soybean and water equity markets journal September 2018
Concurrent increases in wet and dry extremes projected in Texas and combined effects on groundwater journal April 2018
Climate change impacts on hydrological services in southern California journal December 2018
Spatiotemporal heterogeneity in precipitation patterns explain population-level germination strategies in an edaphic specialist journal August 2016
Atmospheric rivers and the mass mortality of wild oysters: insight into an extreme future? journal December 2016
El Niño/Southern Oscillation-driven rainfall pulse amplifies predation by owls on seabirds via apparent competition with mice journal October 2018
Trophic sensitivity of invasive predator and native prey interactions: integrating environmental context and climate change journal October 2016
Competition reverses the response of shrub seedling mortality and growth along a soil moisture gradient journal April 2018
The adaptive potential of plant populations in response to extreme climate events journal March 2019
Transcriptomic responses to extreme low salinity among locally adapted populations of Olympia oyster ( Ostrea lurida ) journal October 2018
Invasive annuals respond more negatively to drought than native species journal May 2019
Trends in atmospheric patterns conducive to seasonal precipitation and temperature extremes in California journal April 2016
Effects of precipitation changes on switchgrass photosynthesis, growth, and biomass: A mesocosm experiment journal February 2018
North American Winter Dipole: Observed and Simulated Changes in Circulations journal December 2019
Effects of ENSO on Temperature, Precipitation, and Potential Evapotranspiration of North India’s Monsoon: An Analysis of Trend and Entropy journal January 2019
Changes in Water Level Regimes in China’s Two Largest Freshwater Lakes: Characterization and Implication journal May 2019
Asymmetric Response of Land Storage to ENSO Phase and Duration journal October 2019
High Variability Is a Defining Component of Mediterranean-Climate Rivers and Their Biota journal January 2017