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Title: Uncertainty Analysis of Simulations of the Turn-of-the-Century Drought in the Western United States

Abstract

Here, we perform the first uncertainty quantification analysis of the turn-of-the-century drought in the western United States using a large perturbed-parameter ensemble of the Community Atmosphere Model version 4.0 (CAM4). We develop several metrics to characterize the aridity bias, spatial extent, and tropical forcing of the drought and use statistical models to ascertain that the modeled drought was mainly sensitive to CAM4 parameters related to deep convection and clouds. Deep convection parameters account for over half the variance across the drought metrics. We employ observed estimates of these drought metrics to infer probability distributions of the model parameters that lead to a better agreement with observations, thereby providing guidance on how to improve the simulation of drought in CAM4. We find that in some cases, the suggested parameter values that improve the simulation of one drought characteristic would degrade the simulation of another, suggesting that there is a complex relationship between the model parameters and drought in the western United States. We also demonstrate reductions in the uncertainty of the drought metrics of up to 30% by constraining with observations of all metrics. Additionally, we demonstrate for the first time that improvements to the simulation of the spatial extent ofmore » the turn-of-the-century drought also lead to improvements in the spatial extent of the Australian Millennium drought, suggesting that physics of drought as encoded by the model parameters may be generalizable.« less

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1491656
Alternate Identifier(s):
OSTI ID: 1484960
Report Number(s):
LLNL-JRNL-739260
Journal ID: ISSN 2169-897X; 891713
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research: Atmospheres
Additional Journal Information:
Journal Volume: 123; Journal Issue: 23; Journal ID: ISSN 2169-897X
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; drought; uncertainty quantification; western United States; CAM4

Citation Formats

Anderson, Gemma J., Lucas, Donald D., and Bonfils, Céline. Uncertainty Analysis of Simulations of the Turn-of-the-Century Drought in the Western United States. United States: N. p., 2018. Web. doi:10.1029/2017JD027824.
Anderson, Gemma J., Lucas, Donald D., & Bonfils, Céline. Uncertainty Analysis of Simulations of the Turn-of-the-Century Drought in the Western United States. United States. doi:10.1029/2017JD027824.
Anderson, Gemma J., Lucas, Donald D., and Bonfils, Céline. Sun . "Uncertainty Analysis of Simulations of the Turn-of-the-Century Drought in the Western United States". United States. doi:10.1029/2017JD027824. https://www.osti.gov/servlets/purl/1491656.
@article{osti_1491656,
title = {Uncertainty Analysis of Simulations of the Turn-of-the-Century Drought in the Western United States},
author = {Anderson, Gemma J. and Lucas, Donald D. and Bonfils, Céline},
abstractNote = {Here, we perform the first uncertainty quantification analysis of the turn-of-the-century drought in the western United States using a large perturbed-parameter ensemble of the Community Atmosphere Model version 4.0 (CAM4). We develop several metrics to characterize the aridity bias, spatial extent, and tropical forcing of the drought and use statistical models to ascertain that the modeled drought was mainly sensitive to CAM4 parameters related to deep convection and clouds. Deep convection parameters account for over half the variance across the drought metrics. We employ observed estimates of these drought metrics to infer probability distributions of the model parameters that lead to a better agreement with observations, thereby providing guidance on how to improve the simulation of drought in CAM4. We find that in some cases, the suggested parameter values that improve the simulation of one drought characteristic would degrade the simulation of another, suggesting that there is a complex relationship between the model parameters and drought in the western United States. We also demonstrate reductions in the uncertainty of the drought metrics of up to 30% by constraining with observations of all metrics. Additionally, we demonstrate for the first time that improvements to the simulation of the spatial extent of the turn-of-the-century drought also lead to improvements in the spatial extent of the Australian Millennium drought, suggesting that physics of drought as encoded by the model parameters may be generalizable.},
doi = {10.1029/2017JD027824},
journal = {Journal of Geophysical Research: Atmospheres},
number = 23,
volume = 123,
place = {United States},
year = {2018},
month = {12}
}

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Works referenced in this record:

Model Projections of an Imminent Transition to a More Arid Climate in Southwestern North America
journal, May 2007


Projections of Future Drought in the Continental United States and Mexico
journal, December 2011

  • Wehner, Michael; Easterling, David R.; Lawrimore, Jay H.
  • Journal of Hydrometeorology, Vol. 12, Issue 6
  • DOI: 10.1175/2011JHM1351.1

Uncertainty analysis of direct radiative forcing by anthropogenic sulfate aerosols
journal, September 1997

  • Pan, Wenwei; Tatang, Menner A.; McRae, Gregory J.
  • Journal of Geophysical Research: Atmospheres, Vol. 102, Issue D18
  • DOI: 10.1029/97JD01653

Unprecedented 21st century drought risk in the American Southwest and Central Plains
journal, February 2015

  • Cook, Benjamin I.; Ault, Toby R.; Smerdon, Jason E.
  • Science Advances, Vol. 1, Issue 1
  • DOI: 10.1126/sciadv.1400082

Distinguishing Pronounced Droughts in the Southwestern United States: Seasonality and Effects of Warmer Temperatures
journal, November 2009

  • Weiss, Jeremy L.; Castro, Christopher L.; Overpeck, Jonathan T.
  • Journal of Climate, Vol. 22, Issue 22
  • DOI: 10.1175/2009JCLI2905.1

Relative Contributions of Mean-State Shifts and ENSO-Driven Variability to Precipitation Changes in a Warming Climate
journal, December 2015

  • Bonfils, Céline J. W.; Santer, Benjamin D.; Phillips, Thomas J.
  • Journal of Climate, Vol. 28, Issue 24
  • DOI: 10.1175/JCLI-D-15-0341.1

Efficient screening of climate model sensitivity to a large number of perturbed input parameters: PERTURBED INPUT-PARAMETER SENSITIVITY
journal, July 2013

  • Covey, Curt; Lucas, Donald D.; Tannahill, John
  • Journal of Advances in Modeling Earth Systems, Vol. 5, Issue 3
  • DOI: 10.1002/jame.20040

Identifying external influences on global precipitation
journal, November 2013

  • Marvel, K.; Bonfils, C.
  • Proceedings of the National Academy of Sciences, Vol. 110, Issue 48
  • DOI: 10.1073/pnas.1314382110

Comparison of drought indicators derived from multiple data sets over Africa
journal, January 2014


A New Globally Complete Monthly Historical Gridded Mean Sea Level Pressure Dataset (HadSLP2): 1850–2004
journal, November 2006


Machine Learning Predictions of a Multiresolution Climate Model Ensemble
journal, May 2018

  • Anderson, Gemma J.; Lucas, Donald D.
  • Geophysical Research Letters, Vol. 45, Issue 9
  • DOI: 10.1029/2018GL077049

Competing Influences of Anthropogenic Warming, ENSO, and Plant Physiology on Future Terrestrial Aridity
journal, September 2017

  • Bonfils, Céline; Anderson, Gemma; Santer, Benjamin D.
  • Journal of Climate, Vol. 30, Issue 17
  • DOI: 10.1175/JCLI-D-17-0005.1

Widening of the tropical belt in a changing climate
journal, December 2007

  • Seidel, Dian J.; Fu, Qiang; Randel, William J.
  • Nature Geoscience, Vol. 1, Issue 1
  • DOI: 10.1038/ngeo.2007.38

Greenhouse warming and the 21st century hydroclimate of southwestern North America
journal, December 2010

  • Seager, R.; Vecchi, G. A.
  • Proceedings of the National Academy of Sciences, Vol. 107, Issue 50
  • DOI: 10.1073/pnas.0910856107

The parametric sensitivity of CAM5's MJO: Parametric Sensitivity of CAM5's MJO
journal, February 2015

  • Boyle, J. S.; Klein, S. A.; Lucas, D. D.
  • Journal of Geophysical Research: Atmospheres, Vol. 120, Issue 4
  • DOI: 10.1002/2014JD022507

How well do CMIP5 climate simulations replicate historical trends and patterns of meteorological droughts?
journal, April 2015

  • Nasrollahi, Nasrin; AghaKouchak, Amir; Cheng, Linyin
  • Water Resources Research, Vol. 51, Issue 4
  • DOI: 10.1002/2014WR016318

Anthropogenic warming has increased drought risk in California
journal, March 2015

  • Diffenbaugh, Noah S.; Swain, Daniel L.; Touma, Danielle
  • Proceedings of the National Academy of Sciences, Vol. 112, Issue 13
  • DOI: 10.1073/pnas.1422385112

Contribution of anthropogenic warming to California drought during 2012–2014
journal, August 2015

  • Williams, A. Park; Seager, Richard; Abatzoglou, John T.
  • Geophysical Research Letters, Vol. 42, Issue 16
  • DOI: 10.1002/2015GL064924

Causes of the 2011–14 California Drought
journal, September 2015

  • Seager, Richard; Hoerling, Martin; Schubert, Siegfried
  • Journal of Climate, Vol. 28, Issue 18
  • DOI: 10.1175/JCLI-D-14-00860.1

Terrestrial Aridity and Its Response to Greenhouse Warming across CMIP5 Climate Models
journal, July 2015


Quantification of modelling uncertainties in a large ensemble of climate change simulations
journal, August 2004

  • Murphy, James M.; Sexton, David M. H.; Barnett, David N.
  • Nature, Vol. 430, Issue 7001
  • DOI: 10.1038/nature02771

An Ocean Dynamical Thermostat
journal, September 1996


Uncertainty in predictions of the climate response to rising levels of greenhouse gases
journal, January 2005

  • Stainforth, D. A.; Aina, T.; Christensen, C.
  • Nature, Vol. 433, Issue 7024
  • DOI: 10.1038/nature03301

Seasonal and regional biases in CMIP5 precipitation simulations
journal, May 2014

  • Liu, Z.; Mehran, A.; Phillips, Tj
  • Climate Research, Vol. 60, Issue 1
  • DOI: 10.3354/cr01221

Tuning without over-tuning: parametric uncertainty quantification for the NEMO ocean model
journal, January 2017

  • Williamson, Daniel B.; Blaker, Adam T.; Sinha, Bablu
  • Geoscientific Model Development, Vol. 10, Issue 4
  • DOI: 10.5194/gmd-10-1789-2017

An Overview of the Results of the Atmospheric Model Intercomparison Project (AMIP I)
journal, January 1999


Atmospheric circulation comparisons between the 2001 and 2002 and the 1961 and 1988 Canadian prairie droughts
journal, June 2005

  • Bonsai, Barrie R.; Wheaton, Elaine E.
  • Atmosphere-Ocean, Vol. 43, Issue 2
  • DOI: 10.3137/ao.430204

Extremely randomized trees
journal, March 2006


A More Rational Climatic Moisture Index*
journal, February 1992


The Turn of the Century North American Drought: Global Context, Dynamics, and Past Analogs
journal, November 2007


Climate Warming and 21st-Century Drought in Southwestern North America
journal, February 2008

  • MacDonald, Glen M.; Stahle, David W.; Diaz, Jose Villanueva
  • Eos, Transactions American Geophysical Union, Vol. 89, Issue 9
  • DOI: 10.1029/2008EO090003

Climate models fail to ‘predict’ US droughts
journal, April 2013


Robust twenty-first-century projections of El Niño and related precipitation variability
journal, October 2013

  • Power, Scott; Delage, François; Chung, Christine
  • Nature, Vol. 502, Issue 7472
  • DOI: 10.1038/nature12580

Bayesian calibration of computer models
journal, August 2001

  • Kennedy, Marc C.; O'Hagan, Anthony
  • Journal of the Royal Statistical Society: Series B (Statistical Methodology), Vol. 63, Issue 3
  • DOI: 10.1111/1467-9868.00294

Failure analysis of parameter-induced simulation crashes in climate models
journal, January 2013

  • Lucas, D. D.; Klein, R.; Tannahill, J.
  • Geoscientific Model Development, Vol. 6, Issue 4
  • DOI: 10.5194/gmd-6-1157-2013

Megadroughts in North America: placing IPCC projections of hydroclimatic change in a long-term palaeoclimate context
journal, January 2010

  • Cook, Edward R.; Seager, Richard; Heim, Richard R.
  • Journal of Quaternary Science, Vol. 25, Issue 1
  • DOI: 10.1002/jqs.1303

An Approach to Sensitivity Analysis of Computer Models: Part I—Introduction, Input Variable Selection and Preliminary Variable Assessment
journal, July 1981


ENSO representation in climate models: from CMIP3 to CMIP5
journal, April 2013


Uncertainty Analysis of Runoff Simulations and Parameter Identifiability in the Community Land Model: Evidence from MOPEX Basins
journal, December 2013

  • Huang, Maoyi; Hou, Zhangshuan; Leung, L. Ruby
  • Journal of Hydrometeorology, Vol. 14, Issue 6
  • DOI: 10.1175/JHM-D-12-0138.1

North American droughts of the mid to late nineteenth century: a history, simulation and implication for Mediaeval drought
journal, February 2006


A Framework for Validation of Computer Models
journal, May 2007


Error Reduction and Convergence in Climate Prediction
journal, December 2008

  • Jackson, Charles S.; Sen, Mrinal K.; Huerta, Gabriel
  • Journal of Climate, Vol. 21, Issue 24
  • DOI: 10.1175/2008JCLI2112.1

A climatic deconstruction of recent drought trends in the United States
journal, April 2015

  • Ficklin, Darren L.; Maxwell, Justin T.; Letsinger, Sally L.
  • Environmental Research Letters, Vol. 10, Issue 4
  • DOI: 10.1088/1748-9326/10/4/044009

Combining Field Data and Computer Simulations for Calibration and Prediction
journal, January 2004

  • Higdon, Dave; Kennedy, Marc; Cavendish, James C.
  • SIAM Journal on Scientific Computing, Vol. 26, Issue 2
  • DOI: 10.1137/S1064827503426693

The impracticality of a universal drought definition
journal, October 2013


Global Warming–Induced Changes in El Niño Teleconnections over the North Pacific and North America
journal, December 2014


Uncertainty quantification and global sensitivity analysis of the Los Alamos sea ice model
journal, April 2016

  • Urrego‐Blanco, Jorge R.; Urban, Nathan M.; Hunke, Elizabeth C.
  • Journal of Geophysical Research: Oceans, Vol. 121, Issue 4
  • DOI: 10.1002/2015JC011558

Regional assessment of the parameter-dependent performance of CAM4 in simulating tropical clouds: REGIONAL TROPICAL CLOUDS IN CAM4
journal, July 2012

  • Zhang, Yuying; Xie, Shaocheng; Covey, Curt
  • Geophysical Research Letters, Vol. 39, Issue 14
  • DOI: 10.1029/2012GL052184

Modeling of Tropical Forcing of Persistent Droughts and Pluvials over Western North America: 1856–2000
journal, October 2005

  • Seager, Richard; Kushnir, Yochanan; Herweijer, Celine
  • Journal of Climate, Vol. 18, Issue 19
  • DOI: 10.1175/JCLI3522.1

Parametric sensitivity analysis of precipitation at global and local scales in the Community Atmosphere Model CAM5
journal, April 2015

  • Qian, Yun; Yan, Huiping; Hou, Zhangshuan
  • Journal of Advances in Modeling Earth Systems, Vol. 7, Issue 2
  • DOI: 10.1002/2014MS000354

Reduction in carbon uptake during turn of the century drought in western North America
journal, July 2012

  • Schwalm, Christopher R.; Williams, Christopher A.; Schaefer, Kevin
  • Nature Geoscience, Vol. 5, Issue 8
  • DOI: 10.1038/ngeo1529

Volcanic and Solar Forcing of the Tropical Pacific over the Past 1000 Years
journal, February 2005

  • Mann, Michael E.; Cane, Mark A.; Zebiak, Stephen E.
  • Journal of Climate, Vol. 18, Issue 3
  • DOI: 10.1175/JCLI-3276.1

The Perfect Ocean for Drought
journal, January 2003


Random Forests
journal, January 2001


Atmosphere and Ocean Origins of North American Droughts
journal, June 2014


The TRMM Multisatellite Precipitation Analysis (TMPA): Quasi-Global, Multiyear, Combined-Sensor Precipitation Estimates at Fine Scales
journal, February 2007

  • Huffman, George J.; Bolvin, David T.; Nelkin, Eric J.
  • Journal of Hydrometeorology, Vol. 8, Issue 1
  • DOI: 10.1175/JHM560.1

The Version-2 Global Precipitation Climatology Project (GPCP) Monthly Precipitation Analysis (1979–Present)
journal, December 2003


Comparing two methods to estimate the sensitivity of regional climate simulations to tropical SST anomalies: RANDOM PATCH METHOD FOR GTO ESTIMATE
journal, October 2012

  • Li, Wei; Forest, Chris E.; Barsugli, Joseph
  • Journal of Geophysical Research: Atmospheres, Vol. 117, Issue D20
  • DOI: 10.1029/2011JD017186