The CP editorial board, the European Geosciences Union, and Copernicus Publications thank the following colleagues very much for their work in reviewing the manuscripts published in the journal volume 15, 2019.
- George Adamson
- Florian Adolphi
- Maria Alcoforado
- Thomas Algeo
- Jorge Alvarez-Solas
- Carin Andersson Dahl
- James Annan
- Pierre Antoine
- Yarrow Axford
- Michiel Baatsen
- Jürgen Bader
- David Bailey
- Mariano Barriendos
- Patrick Bartlein
- Dario Battistel
- Lucie Bazin
- Achim Bechtel
- Xavier Benito
- Tripti Bhattacharya
- Thomas Birner
- Niklas Boers
- Pascal Bohleber
- Oliver Bothe
- Nathaelle Bouttes
- Pascale Braconnot
- Raymond Bradley
- E. C. Brady
- Kerstin Braun
- Stefan Bronnimann
- Pearse Buchanan
- Ulf Buentgen
- Christo Buizert
- Isabel Cacho
- Qiufang Cai
- Yanjun Cai
- Emilie Capron
- Deepak Chandan
- David S. Chapman
- Fredrik Charpentier Ljungqvist
- Brian Chase
- Sloan Coats
- Michel Crucifix
- Jose Maria Cuadrat
- William J. D'Andrea
- Anne Dallmeyer
- Catherine Davis
- Jacques-Louis de Beaulieu
- Jonathan Dean
- Dagomar Degroot
- Mathieu Dellinger
- Barbara Delmonte
- Dmitry Demezhko
- Federico Di Rita
- Dmitry Divine
- Florent Dominé
- Evan Edinger
- Johannes Edvardsson
- Alexey Ekaykin
- James Elsner
- Tobias Erhardt
- Hubertus Fischer
- Marcelo Fragoso
- Jörg Franke
- Massimo Frezzotti
- Joost Frieling
- Mauricio Fuentes
- Tim Gallagher
- Natalia Garcia Chapori
- Ricardo García-Herrera
- Graciela Gil Romera
- Alba Gilabert Gallart
- Adrian Gilli
- Yves Godderis
- Heiko Goelzer
- Fidel González-Rouco
- Stefan Grab
- Mackenzie Grieman
- Timothy Heaton
- Christopher Hein
- Kate Hendry
- Dominic Hodgson
- Jonathan Holmes
- Aixue Hu
- C.,. Hu
- Raphael Hébert
- Sarah Ivory
- Kim Alix Jakob
- Robert Jnglin Wills
- Philip Jones
- Julie Jones
- Fortunat Joos
- Sarah Kang
- David Kaniewski
- Jed Kaplan
- Pasha Karami
- Jim Kasting
- Gayatri Kathayat
- Kenji Kawamura
- Natalie Kehrwald
- Marlene Klockmann
- Henning Kuhnert
- Torben Kunz
- Amaelle Landais
- Michel Lang
- Vittoria Lauretano
- Guillaume Leduc
- Gunter Leguy
- X. Q. Li
- Gaojun Li
- Lin Li
- Alexis Licht
- Laurent Litzenburger
- Bo Liu
- Zheng Liu
- Jerry Lloyd
- Marcus Lofverstrom
- Nicholas Loughlin
- Marie-France Loutre
- José Antonio López-Sáez
- Douglas MacAyeal
- Natasha MacBean
- Dana MacDonald
- Justin Mankin
- Bradley Markle
- Laurent Marquer
- Carlos Martin
- Patricia Martinerie
- Mathieu Martinez
- Belen Martrat
- Francois Massonnet
- Katsumi Matsumoto
- Jennifer Mc Elwain
- Danny McCarroll
- Erin McClymont
- Helen McGregor
- Jennifer McKay
- Laurie Menviel
- Anna Maria Mercuri
- Philip Meyers
- Elisabeth Michel
- Sebastian Mieruch
- Eduardo Moreno-Chamarro
- Carrie Morrill
- Maria Eugenia Mosca Torres
- Conor Murphy
- Sebastian G. Mutz
- David Nash
- Kerim Nisancioglu
- Jesse Nusbaumer
- cristina ortega
- Timothy Osborn
- Didier Paillard
- Frédéric Parrenin
- Luke Parsons
- Henry Patton
- Joel B. Pedro
- Qing Pei
- Donald Penman
- Yves Perrette
- Aurel Perşoiu
- Odile Peyron
- Nadine Pickarski
- Anna Pienkowski
- Alexandre Pohl
- Pratigya Polissar
- Leandro Ponsoni
- Trevor Porter
- Christopher J. Poulsen
- Kathleen Pribyl
- Rajmund Przybylak
- David Psomiadis
- Aurélien Quiquet
- Gilles Ramstein
- Daniele Reghellin
- Tammo Reichgelt
- Janne Repschlaeger
- Dag Retsö
- Alberto Reyes
- Camille Risi
- William Roberts
- Fernando S. Rodrigo
- Marta Rodrigo-Gámiz
- Christian Rohr
- Dana Royer
- Eugene Rozanov
- Joel Savarino
- Ralf Schiebel
- Andreas Schmittner
- Tabea Schröder
- Charles Schweger
- Louis Scott
- Kristina Seftigen
- Hans Petter Sejrup
- Heikki Seppä
- Pierre Sepulchre
- Mirko Severi
- Arash Sharifi
- Zhixiong Shen
- Sam Sherriff-Tadano
- Feng Shi
- Zhengguo Shi
- Ashish Sinha
- Jason Smerdon
- Andrew Smith
- Dr. Inga Smith
- Rienk Smittenberg
- Olga Solomina
- Peter Spooner
- Nathan Steiger
- Christian Stepanek
- Alexander Sterin
- Yong Sun
- Anders Svensson
- Clay Tabor
- Liangcheng Tan
- Ning Tan
- W. Tegel
- Richard Telford
- Alyson Thibodeau
- Kaustubh Thirumalai
- Jun TIAN
- Willy Tinner
- John Tipton
- Kostas Tsigaridis
- Matteo Vacchi
- Gerard van der Schrier
- Guido Vettoretti
- Hendrik Vogel
- Hubert Vonhof
- Mathias Vuille
- Jasper Wassenburg
- Mara Weinelt
- Harvey Weiss
- Helmut Weissert
- Sam White
- Martin Widmann
- Holly Winton
- Eric Wolff
- Haibin Wu
- Zhengyu Xia
- Jule Xiao
- Chenxi Xu
- Bao Yang
- Qiuzhen Yin
- Kei Yoshimura
- Kefyu Yu
- Giovanni Zanchetta
- Qiong Zhang
- Fuqing Zhang
- Xu Zhang
- Yige Zhang
- Xuezhen Zhang
- Yong Zhao
- Jiang Zhu
- Christoph Zielhofer
- Henning Åkesson