Extreme (as in rare) Weather and Climate Publications
Also note a set of web pages devoted to extreme events maps, reports, etc.
Grotjahn and Faure 2008
(9.4 Mb pdf file, preprint, accepted by Weather and Forecasting) Forecasting
Extraordinary weather
events affecting southern Sacramento Valley. Shows the large scale structures
in upper air variables associated with 4 types of extreme weather. A full
compilation of weather maps for the different types of extreme weather can
be found here DOI: http://dx.doi.org/10.1175/2007WAF2006055.1
Grotjahn 2010
(8.4 Mb pdf file, preprint, excerpt of 'Extremes' chapter that appears in
the general audience 'coffee-table' book entitled 'Encyclopedia of Weather and Climate
Change' UC Press (March 2010 release) The book won the ASLI first place
(Popular Category) award for 2010.
This file is just the contents and a sample page.
Grotjahn 2011
(2.1 Mb pdf file, reprint from Climate Dynamics DOI: 10.1007_s00382-011-0999-z on
A pilot scheme to identify hottest days affecting the California Central Valley
from large scale upper air data. It also has additional interpretation of how
extreme heat develops there, with the 2006 event as an example.
Grotjahn 2013
(1.2 Mb pdf file, preprint from Climate Dynamics. With title:
Ability of CCSM4 to Simulate California Extreme Heat Conditions from
Evaluating Simulations of the Associated Large Scale Upper Air Pattern.
It applies methodology from Grotjahn 2011 to the CCSM4, comparing the meteorological
patterns from observations with those from CCSM4.
It also discusses
topographic problems with comparing CCSM4 surface temperatures to
observed distributions.
DOI: 10.1007/s00382-013-1668-1
Springer link to the online article (available to Springer subscribers)
Katz and Grotjahn 2014
(0.5 Mb pdf file, excerpt from US CLIVAR Variations volume 12 (1).
Summary of work on California Central Valley heat waves, and the
Circulation Index from Grotjahn (2011): Extreme value statistics.
Grotjahn 2016
(1.4 Mb pdf file, preprint from the book: Dynamics and Predictability of Global and
Regional High-Impact Weather and Climate Events. (in press).
Summary of work on California Central Valley heat waves: LSMPs
from large scale upper air data (reanalysis and CCSM4). It has additional calculations
and interpretation of how
extreme heat is simulated to occur in two future climate scenarios.(Cambridge Univ. Press book)
ISBN: 978-1-107-07142-1
Grotjahn et al., 2016
(2.4 Mb pdf file), summary of current knowledge on statistical tools to identify and
analyse hot and cold extremes LSMPs, synoptic and dynamic knowledge of LSMPs and their
evolution, modeling efforts and trends, and research questions. OPEN ACCESS In Climate Dynamics, 46(3), 1151-1184
DOI: 10.1007/s00382-015-2638-6
Lee and Grotjahn, 2016 (PREPRINT) California Heat
waves Form Two Ways. describes how the onset of California heat waves is reach by two different patterns of
weather. Journal of Climate DOI: 10.1175/JCLI-D-15-0270.1
Grotjahn and Lee, 2016 (PREPRINT)
Since California heat waves form two ways, this paper
describes how the differences vary between 3 reanalyses and how well these 2 types are simulated
by 14 CMIP5 models. (3.5MB file) Journal of Geophysical Research - Atmospheres. DOI: 10.1002/2015JD024191
Grotjahn and Zhang, 2017
(4.3 Mb pdf file), synoptic analysis of events leading up to the onset of cold air outbreaks on the CONUS west coast.
In Journal of Climate, 30, 9417-9433 DOI: 10.1175/JCLI-D-17-0167.1
Also has: supplementary materials .
Messori, et al., 2018
(0.05 Mb pdf file), An Interdisciplinary Approach to the Study of Weather Extremes (May 2018 Bull. Amer. Meteor. Soc.)
https://doi.org/10.1175/BAMS-D-17-0296.1
Palipane and Grotjahn, 2018 (PREPRINT)
This paper builds upon Grotjahn and Lee (2015) to examine 13 climate model simulations for RCP4.5 and 8.5 scenarios of
California heat waves including the 2 types that occur. Model results vary as does historical simulation skill so weighted
averages are also included. (6.2MB file) In: Journal of Geophysical Research: Atmospheres.
doi: 10.1029/2018JD029000
Also has: supplementary materials (3MB file).
Grotjahn and Huynh 2018 Trends of summertime: maximum temperature, maximum heat index,
maximum THI, and moisture over three time periods over the contiguous US. In: Nature Scientific Reports.
https://doi.org/10.1038/s41598-018-29286-w
(19.1 MB file)
Lee and Grotjahn, 2019 Evidence of specific MJO phase occurrence with
summertime California Central Valley extreme hot weather.
Describes how the onset of California heat waves appear to have some linkage with
specific MJO phases. Submitted to Advances in Atmospheric Sciences (3.9 MB)36(6), 589–602,
https://doi.org/10.1007/s00376-019-8167-1
Grotjahn, 2021
(0.6 Mb pdf file), Weather extremes that impact various agricultural commodities. Chapter 3 in the book:
Extreme Events and Climate Change: A Multidisciplinary Approach. ISBN: 978-1-119-41362-2
Wiley link:
https://www.wiley.com/en-us/Extreme+Events+and+Climate+Change%3A+A+Multidisciplinary+Approach-p-9781119413622
Barlow et al., 2019 North American extreme precipitation events and related large-scale
meteorological patterns: a review of statistical methods, dynamics,
modeling, and trends. OPEN ACCESS in: Climate Dynamics.
https://doi.org/10.1007/s00382-019-04958-z
(6.8 MB file)
Srivastava et al., 2019 A unified approach to evaluating precipitation
frequency estimates with uncertainty quantification: Application to Florida and California watersheds.
In: Journal of Hydrology. vol. 578. https://doi.org/10.1016/j.jhydrol.2019.124095
Swenson and Grotjahn, 2019 Using Self-Organizing Maps to Identify
Coherent CONUS Precipitation Regions. In: Journal of Climate.
https://doi.org/10.1175/JCLI-D-19-0352.1
(3.0 MB file)
Srivastava et al., 2020 Evaluation of historical CMIP6 model simulations
of extreme precipitation over contiguous US regions.
OPEN ACCESS in: Journal of Weather and Climate Extremes. vol. 29. https://doi.org/10.1016/j.wace.2020.100268
Srivastava et al., 2021a Pooling Data
Improves Multimodel IDF Estimates over Median-Based IDF Estimates: Analysis over the Susquehanna and Florida
in: Journal of Hydrometeorology. https://doi.org/10.1175/JHM-D-20-0180.1
Srivastava et al., 2021b Evaluation of precipitation indices in suites of dynamically
and statistically downscaled regional climate models over Florida (OPEN ACCESS) in: Climate Dynamics. https://doi.org/10.1007/s00382-021-05980-w
Srivastava et al., 2023 Assessment of WRF (v 4.2.1) dynamically downscaled precipitation on
subdaily and daily timescales over CONUS (OPEN ACCESS) with supplementary material:
Supplementary Material Multiple precipitation metrics, including a few extreme metrics.
in: Geoscientific Model Development. https://doi.org/10.5194/gmd-16-3699-2023 (3.9 MB file)
Swenson and Grotjahn, 2023 Seasonal and Geographical Variations in Fundamental Weather Patterns
during Extreme Precipitation as Identified from Omega Equation Forcing. Presents a climatology of weather patterns sorted into synoptic
classifications based upon the time and elevation sequences of vertical motion by the two quasi-geostrophic forcings.
The region is the CONUS. (OPEN ACCESS) In: Journal of Climate.
https://doi.org/10.1175/JCLI-D-22-0673.1
(4.6 MB file)
Sukhdeo et al., 2023 Two Large-Scale Meteorological Patterns are Associated with Short-Duration
Dry Spells in the Northeastern United States LSMP-based analysis of 12-day periods of precipitation <2 mm/day over a region in the northeastern
USA. How the patterns vary seasonally and with possible remote associations are shown. (OPEN ACCESS)
in: Monthly Weather Review. https://doi.org/10.1175/MWR-D-23-0141.1
Selected Conference Presentations
Grotjahn and Zhang, 2017 Title is:
“Blame” Hawaii for Extreme Cold Air Outbreaks on the US West Coast?
(which is a provocative title, not really any "blame" here!). Includes various diagnostics and time sequences of West Coast of CONUS
CAOs including high level connections to the Southern Hemisphere. Speaker notes are included in the icon on the upper left corner of each slide.
Presentation at the 2017 AGU Fall Conference
Other Climate Research
I am among the lead authors on the Agriculture chapter in the 2014 National
Climate Assessment, organized by USGCRP. A link to the chapter is
Hatfield, et al., 2013
in the National Climate Assessment. The full draft NCA report can be found:
here Related to that is an unrefereed pdf of my UCS webinar on the NCA discussion
of climate change impacts on
California agriculture.
Much of it is based on Chapters 2, 3, 6, and 20 of that report.
Blocking algorithm and climatology study.
Pinheiro, et al., 2019 Atmospheric blocking and intercomparison of objective detection
methods: flow field characteristics In: Climate Dynamics.
https://doi.org/10.1007/s00382-019-04782-5
Aquaplanet study of atmospheric river changes caused by sea surface temperature changes.
McClenny, et al., 2020 Sensitivity of Atmospheric River Vapor Transportand
Precipitation to Uniform Sea SurfaceTemperature Increases In: Journal of Geophysical Research: Atmospheres.
http://dx.doi.org/10.1029/2020JD033421
Assessing the Large-Scale Drivers of Precipitation in the Northeastern United States Via Linear Orthogonal Decomposition
in Climate DynamicsSukhdeo et al., 2022 4.9MB
Climate Model Simulation of Arctic Surface Conditions
Grotjahn, Pan, and Tribbia, 2010
(4.8 Mb pdf file, submitted to Climate Dynamics) on Linear Stationary Wave model
bias solutions in CAM3
Theoretical and Observational Dynamic Meteorology:
Grotjahn 1996a
(0.9 Mb pdf file) This paper shows the evolution of 27 different troughs before
and during cyclogenesis. It shows the upper and lower troughs are always both
separate and have no upstream tilt prior to onset of development, a key point
in showing that large nonmodal growth does not occur in the atmosphere since
the necessary trough tilts are not observed.
Grotjahn 1996b
(1.5 Mb pdf file) This paper shows horizontal patterns at several levels
of all the terms in the complete vorticity equation.
The figures
illustrate how the terms interact to maintain an upstream tilt of the trough
axis, how the magnitudes compare, how energy for growth is distributed vertically, etc.
One note: figures 5 and 6 are labeled as 'schematic' but in fact all the quantities
depicted on them are traced from raw plots of the composite fields.
Grotjahn 2002a
(1.7 Mb pdf file) a overview of mean state for the Encyclopedia of Atmos. Sci.
Grotjahn 2002b
(0.3 Mb pdf file) a overview of energetics for the Encyclopedia of Atmos. Sci.
Grotjahn 2007a
(0.1 Mb pdf file) Preface to part 1 of the DAO special issue on Current
Contributions to Understanding of the General Circulation of the
Atmosphere
Grotjahn 2007b
(0.3 Mb pdf file) Overview & 'Deduction' of the General
Circulation (DAO special issue, part 1)
Grotjahn 2008a
(11.8 Mb pdf file, large file due to hi-res graphics, preprint)
Comparison: NCEP/DOE AMIP II versus ERA-40
(DAO special issue, part 2)
Grotjahn 2008b
(0.1 Mb pdf file) Preface to part 2 of the DAO special issue on Current
Contributions to Understanding of the General Circulation of the
Atmosphere
Grotjahn 2015b
(3.6 Mb pdf file) a overview of mean state for the Encyclopedia of Atmos. Sci. 2nd Edition
Grotjahn 2015c
(2.3 Mb pdf file) a overview of energetics for the Encyclopedia of Atmos. Sci. 2nd Edition