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Eric Gilleland, Ph.D.

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  • Publications
  • Presentations
  • Software
  • Short Courses
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Eric Gilleland

Eric Gilleland, Ph.D. (CV)
Project Scientist
Joint Numerical Testbed (JNT)
Research Applications Laboratory (RAL)
National Center for Atmospheric Research
P.O. Box 3000, Boulder, CO 80307, USA

Phone:  (303)  497-1000   Fax:   (303)  497-2729   e:

Software I either authored, co-authored, currently maintain, or have some other sort of association with.

R packages
R packages

distillery: A simple package with some useful method functions used by extRemes (>= 2.0) and SpatialVx (>=0.1-6). As of distillery version 0.1-4, new bootstrap routines are included. They are similar to those found in the boot package but do have some important differences, as well as a function (tibber) for carrying out the test-inversion bootstrap method. See Gilleland (2020; part I and part II) for details.

extRemes (Version >= 2.0) is command-line code extreme value analysis.

in2extRemes: point-and-click software operating some of the functionality included in extRemes.

ismev: extreme value analysis functions ported from S by Alec Stephenson, and originally written by Janet Heffernan, that accompany the EVA text book by Stuart Coles.

RadioSonde: software for creating skew-T diagrams and plots with wind barbs.

smoothie: software for applying the convolution theorem with the fast Fourier transform to smooth a two-dimensional gridded spatial field or image (pdf manual).

SpatialVx: software for doing spatial weather forecast verification.

verification: routines predominantly written by Matt Pocernich for performing weather forecast verification.


MET: software package (based on C++) for forecast verification.

Short Courses

Extreme-Value Analysis, 2023 Interdisciplinary Workshop on Weather and Climate Extremes (Citable URL:

Short Course II: Statistical Analysis of Weather and Climate Extremes, 2023 Clemson Climate Extremes Workshop (pdf, problem sets).

Crash-Course in Extremes, 21 May 2019. STATMOS Workshop on Spatial and Spatio-temporal EVA and Oceanography, 21 to 24 May 2019, San Diego, California, U.S.A. (co-organizer). STATMOS is sponsored by the U.S. National Science Foundation (NSF).

9th International Extreme Value Analysis Conference Satellite Workshop on Statistical Computing for Extremes, 14 June 2015, Ann Arbor, Michigan. (Univariate part: Presentation slides, pdf, Practice Problems, pdf)

Introduction to R, Siparcs workshop, 20 May 2015, (pdf presentation slides, practice problems, which use the data RedRiverPortRoyalTN.dat).

WCRP-ITCP Summer School on Attribution and Prediction of Extreme Events. 21 July - 1 August 2014, Trieste, Italy. (Introductory slides on stationary EVA: Part I: block maxima, Part II: peaks over threshold, Introductory slides on R and extRemes >= 2.0, and some practice problems). Journal of Weather and Climate Extremes papers from summer school.

Statistical Analysis of Weather and Climate Extremes, AMS 22nd Conference on Probability and Statistics in the Atmospheric Sciences, 2 February 2014, Atlanta, Georgia

Introduction to R, Siparcs/HPC workshop, 21 May 2013, (pdf slides, R scripts)

Short course: An introduction to the analysis of extreme values using R and extRemes. Short Course, Graybill VIII/6th International Conference on Extreme Value Analysis. Colorado State University, Fort Collins, Colorado. 22 - 26 June 2009

Intense course for young researchers on R Statistical software for climate research with an introduction to extreme value analysis, Interdisciplinary Workshop: Effects of climate change: coastal systems, policy implications, and the role of statistics Workshop. Preluna Hotel and Spa, Sliema, Malta. 16 - 17 March 2009


1 August 2018 - 31 July 2019, Developmental Testbed Center (DTC) visitor to NCAR, Boulder, Colorado, U.S.A. Adavanced Distance-based, Field Deformation and Statistical Hypothesis Utilities for MET.

22 February - 8 March 2017. Department of Statistical Sciences and Operations Research, Virginia Commonwealth University, Richmond, Virginia, U.S.A.

3 - 6 October 2016. Met Office and Mathematics Department, University of Exeter, Exeter, United Kingdom.

17 April 2014. Department of Mathematical Sciences, University of Delaware, Newark, Delaware, U.S.A.

12 - 14 September 2011. Shell Technology Center, Houston, Texas, U.S.A.

5 - 6 October 2009. Laboratoire des Sciences du Climat et de l'Environnement, IPSL-CNRS, Gif-Sur-Yvette, France.

21 October to 3 November 2007. Mathematical Statistics, Centre for Mathematical Sciences, Lund University, Lund, Sweden.
    Seminar: Method for Object-based Diagnostic Evaluation (MODE): A features-based spatial forecast verification technique (pdf), 26 October 2008.


Associate Editor for Monthly Weather Review (January 2014 to present).

Committees and Projects


Program Chair-Elect 2022 for the American Statistical Association Statistics and the Environment (ENVR) Section (9/1/2021 - present).

Member: World Meteorological Organization (WMO) World Weather Research Devision's Joint Working Group on Forecast Verification Research (JWGFVR), 2/22/2018 - 12/31/2021.


Mesoscale Verification Intercomparison in Complex Terrain (organizing committee)

STATMOS (NCAR node director)

AMS Probability and Statistics Committee (member, 1/16/2011 - 2/15/15; chair, 2/15/15 - 1/15/18)

Spatial Forecast Verification Inter-Comparison Project (organizing committee)

Conference/Workshop Organization

STATMOS Workshop on Spatial and Spatio-temporal EVA and Oceanography, 21 to 24 May 2019, San Diego, California, U.S.A. (co-organizer). STATMOS is sponsored by the U.S. National Science Foundation (NSF)

30th Conference on Climate Variability and Change (CVC), 24th Conference on Probability & Statistics, and 16th Conference on Artificial Intelligence (AI), joint with the ENVR section of the American Statistical Association (ASA), 28 - 29 July 2017, Baltimore, Maryland, U.S.A. (co-chair)

4th International Workshop on Climate Informatics. 25 - 26 September 2014, National Center for Atmospheric Research, Boulder, Colorado, U.S.A. (co-chair)

2011 ASP Colloquium on "Statistical Assessment of Extreme Weather Phenomena under Climate Change" (organizing committee)

4th Annual UCAR/NCAR Early Career Scientists Assembly (ECSA) Junior Faculty Forum on Future Scientific Directions, 1-3 August 2006, Boulder, Colorado (organizing chair)

Reading Groups

History of the English Language Presentations

Seminar presentation for NCAR's English as a Second Language (ESL) group on origins of English: English--It could have been worse (pdf), 14 May 2008.

Presentation on Frisian (and its connection to English) for IBM's 2009 Take Our Children to Work Day (pdf).


Piter Wilkens is one of the few singer/songwriter's to sing almost exclusively in the West Frisian language, Frisian (he has at least one song in Leeuwardish; a town Frisian dialect). The language was considered the closest living language to English until it was decided that Scots should be considered a separate language (rather than dialect).