The TC 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, 2021.
- Charles Abolt
- Stephen Ackley
- Alden Adolph
- Mary Albert
- Patrick Alexander
- Knut Alfredsen
- Steve Allen
- Bas Altena
- Roberto Ambrosini
- Javier Amezcua
- Charles Amory
- Jason Amundson
- Wenling An
- Jonas Kvist Andersen
- Leif S. Anderson
- Liss M. Andreassen
- Lauren C. Andrews
- Sofia Antonova
- William Armstrong
- Stefanie Arndt
- Philipp Arndt
- Kristi R. Arsenault
- Jennifer Arthur
- Andy Aschwanden
- Karen Assmann
- Adam Atchley
- Guðfinna Aðalgeirsdóttir
- Eviatar Bach
- Sheldon Bacon
- Edward Bair
- Ian Baker
- Jonathan Bamber
- Carlo Barbante
- Mauro Barbat
- Jowan Barnes
- Iestyn Barr
- P.A.B. Bartlett
- Paul Bartlett
- Miguel Bartolomé
- Jeremy Bassis
- Sabine Baumann
- Celia A. Baumhoer
- Lucas Beem
- Joaquín M. C. Belart
- Douglas Benn
- Luke Bennetts
- Mike Bentley
- Melanie Bergmann
- Etienne Berthier
- Laurent Bertino
- Giacomo Bertoldi
- André Bertoncini
- Aldo Bertone
- Maya Bhatia (deceased)
- Haibo Bi
- Richard Bintanja
- Karl W. Birkeland
- Helgi Björnsson
- Ed Blockley
- Pascal Bohleber
- Tobias Bolch
- Paul D. Bons
- Adam Booth
- Andreas Born
- Amelie Bouchat
- Deniz Bozkurt
- Virginia Brancato
- Douglas Brinkerhoff
- Alex Brisbourne
- Ross Brown
- Laura Brown
- Kelly Brunt
- Christo Buizert
- Sammie Buzzard
- Alex Cabaj
- Yanjun Cai
- Louise Callard
- Neige Calonne
- Sean Carey
- Tim Carlsen
- Luca Carturan
- Barbara Casati
- Ryan Cassotto
- Sarah Chadburn
- Subha Chakraborty
- Nicolas Champollion
- Won Chang
- David M. Chew
- Clara Chew
- Eunsang Cho
- John Erich Christian
- Frazer Christie
- Tom Chudley
- Alessandro Cicoira
- Shawn Clark
- David M. Cole
- Florence Colleoni
- Renato R. Colucci
- Howard Conway
- Sarah Cooley
- Luke Copland
- Stephen Cornford
- Alex Crawford
- Xiangbin Cui
- Pavla Dagsson Waldhauserova
- Cheng Dang
- Véronique Dansereau
- Basile de Fleurian
- Philipp de Vrese
- Reynald Delaloye
- Ian Delaney
- Alison Delhasse
- Blaize Denfeld
- Chris Derksen
- César Deschamps-Berger
- Alessandro Di Bella
- Roman Dial
- Wolfgang Dierking
- Emma Dodd
- Christine Dow
- Samuel Doyle
- Reinhard Drews
- Ravindra Duddu
- Carolina Dufour
- Devon Dunmire
- Michael Döring
- Jörg Ebbing
- Markus Eckerstorfer
- Hajo Eicken
- Alexey Ekaykin
- Alexey V. Eliseev
- Adam Emmer
- Rune Engeset
- Richard L.H. Essery
- Robert Ettema
- Eleri Evans
- Sarah Evans
- Olivier Evrard
- Sinead L Farrell
- Vincent Favier
- Denis Felikson
- Alfonso Fernandez
- Joel Fiddes
- Charles Fierz
- Simon Filhol
- Hubertus Fischer
- Andrea Fischer
- Sean Fleming
- Sara Fleury
- Steven Fons
- Adrià Fontrodona-Bach
- Georges Fournier
- Andrew Frampton
- Alexander Fraser
- Robert Frederking
- Markus Frey
- Holger Frey
- Massimo Frezzotti
- Simon Gascoin
- Shemin Ge
- Tamara Annina Gerber
- Christopher Gerbi
- Yusof Ghiasi
- Ella Gilbert
- Adrien Gilbert
- Fabien Gillet-Chaulet
- Rupert Gladstone
- Heiko Goelzer
- Helge Goessling
- Kenneth Golden
- Alexandra Gossart
- Melchior Grab
- Mats Granskog
- Laurence Gray
- Chad Greene
- Jonathan M. Gregory
- Ralf Greve
- Shane Grigsby
- Aslak Grinsted
- G. Hilmar Gudmundsson
- Julia Guimond
- Grant Gunn
- Donglin Guo
- Wilfried Haeberli
- Brenda Hall
- Bernard Hallet
- Kevin Hammonds
- William D. Harcourt
- Phillip Harder
- stephan harrison
- Masaki Hayashi
- Cenlin He
- Kay Helfricht
- Harry Heorton
- Agnieszka Herman
- Céline Heuzé
- Jakob Heyman
- Scott Higgins
- Signe Hillerup Larsen
- Richard C.A. Hindmarsh
- Hiroyuki Hirashima
- Bjørn Åge Hjøllo
- Regine Hock
- Martin Hoelzle
- Nicholas Holschuh
- Benjamin Holt
- Mark Hopwood
- Huw Horgan
- Masahiro Hori
- Christopher Horvat
- Yan Hu
- Luofeng Huang
- Bryn Hubbard
- Peter Hudleston
- Stephen R. Hudson
- Romain Hugonnet
- Jennifer Hutchings
- Nils Hutter
- Byongjun Hwang
- Knut Høyland
- James Irving
- Masato Ito
- Elchin Jafarov
- Shridhar Jawak
- Keith Jennings
- Anne Jennings
- Liguang Jiang
- Tomas Johannesson
- Malin Johansson
- Richard Jones
- Ian Joughin
- Nicolas Jourdain
- Sahra Kacimi
- Lars Kaleschke
- Ulrich Kamp
- Fatima Karbou
- Viktor Kaufmann
- Enn Kaup
- Kaitlin Keegan
- Benjamin Keisling
- Edward Kempema
- Zoltán Kern
- Stefan Kern
- Siobhan Killingbeck
- Michalea King
- Amy King
- Christoph Kittel
- Marin Kneib
- Alexander Kokhanovsky
- Alexander Komarov
- Johanna Korhonen
- Anton Korosov
- Sven Kotlarski
- Philip Kraaijenbrink
- Daniela Krampe
- Mario Krapp
- Karl Kreutz
- Lukas Krieger
- Gerhard Krinner
- Quirine Krol
- Peter Kuipers Munneke
- Andreas Kääb
- Andreas Köhler
- Markus Köhli
- Morten Kølzow
- Matthieu Lafaysse
- Christophe Lambiel
- Amaelle Landais
- Jack Landy
- Pat Langhorne
- Nicolaj Larsen
- James Lea
- Anne-Marie LeBLanc
- Michael Lehning
- Ilari Lehtonen
- Yang Lei
- Silvan Leinss
- J.-F. Lemieux
- Juha Lemmetyinen
- Jan Lenaerts
- Gregory Leonard
- Simone Lepore
- Stef Lhermitte
- Heming Liao
- Quentin Libois
- Bonnie Light
- Audrey Limoges
- Mang Lin
- Sigrid Lind
- Karl-Erich Lindenschmidt
- Fabian Lindner
- Bradley Lipovsky
- Lin Liu
- Yangyang Liu
- Jerry Lloyd
- Marcus Lofverstrom
- David G. Long
- Martin Losch
- Daniel P. Lowry
- Marc Luetscher
- J. Ignacio López-Moreno
- Henning Löwe
- Christof Lüpkes
- Martin Lüthi
- Grant Macdonald
- Horst Machguth
- Jonathan D Mackay
- Emma MacKie
- John Magnuson
- J. Magnusson
- Lori Magruder
- Kanthanathan Mahalinganathan
- Andrew Mahoney
- Ted Maksym
- Robbie Mallett
- Maria-Daphne Mangriotis
- Nicolas Marchand
- Juliana Marini Marson
- Bryan Mark
- Christopher Marsh
- Christoph Marty
- Ben Marzeion
- R. A. Massom
- Eric Matzel
- Valerie Maupin
- Fabien Maussion
- Christoph Mayer
- Paul Andrew Mayewski
- Felicity McCormack
- Robert McNabb
- Michael McPhail
- Brooke Medley
- Walter Meier
- Julien Meloche
- Laurie Menviel
- Christopher J. Merchant
- Amelie Meyer
- Colin Meyer
- Legrand Michel
- Evan Miles
- Bertie Miles
- Katie Miles
- Pietro Milillo
- Romain Millan
- Lauren E. Miller
- Una Miller
- Brent Minchew
- Cary Mock
- Carlos Moffat
- Yara Mohajerani
- Aaron Mohammed
- Maurine Montagnat
- Marianne Moore
- Aurélien Mordret
- Ludovic Moreau
- Cyrille Mosbeux
- Philip Mote
- Rebecca Mott
- Jeremie Mouginot
- Lawrence Mudryk
- Justin Murfitt
- Julian Murton
- Marko Mäkynen
- Karsten Müller
- Vishnu Nandan
- Stefano Nerozzi
- Andrew Newton
- Isabel Nias
- Keir Nichols
- Eckert Nicolas
- Karina Nielsen
- Sohey Nihashi
- Bimochan Niraula
- Jan Nitzbon
- Ingmar Nitze
- Masashi Niwano
- Kazushi Noro
- Brice Noël
- Rachel Obbard
- Yukihiko Onuma
- Anais Orsi
- Emmanuel Paquet
- Juraj Parajka
- Frans-Jan W. Parmentier
- Frédéric Parrenin
- Frank Paul
- Stephan Paul
- Leif Toudal Pedersen
- Erich Peitzsch
- Francesca Pellicciotti
- Mauri Pelto
- Ben Pelto
- Mauro Perego
- Aurel Perşoiu
- Noemi Petra
- Dmitry Petrakov
- Vasilii Petrenko
- Erin Pettit
- Ghislain Picard
- Roberta Pini
- Eric Pohl
- Kristin Poinar
- Leandro Ponsoni
- Emily Potter
- Kerri Pratt
- Susanne Preunkert
- Daniel Price
- Michael Prior-Jones
- Hamish Pritchard
- Wolfgang Rack
- Thomas Rackow
- Mark Raleigh
- Roberto Ranzi
- Till Rasmussen
- David Rees Jones
- Ronja Reese
- Alan Rempel
- George Riggs
- Lettie Roach
- Alexander Robel
- Martin Rongen
- Philipp Rosendahl
- Neil Ross
- Martin Ross
- David Rounce
- Vanessa Round
- Line Rouyet
- Anja Rutishauser
- Jonathan Ryan
- Jouni Räisänen
- Sourav Saha
- Fuyuki Saito
- Roberto Salzano
- Melody Sandells
- Tatsuhiko Sato
- Ashim Sattar
- Tobias Sauter
- Ted Scambos
- Nicole Schaffer
- Clemens Schannwell
- Randall Scharien
- Paul Schattan
- Jessica Scheick
- Nicole-Jeanne Schlegel
- Philippe Schoeneich
- Spruce Schoenemann
- Dustin Schroeder
- Ludwig Schröder
- Thomas V. Schuler
- Erland M. Schulson
- Axel Schweiger
- Margit Schwikowski
- Amandine Sergeant
- Helene Seroussi
- Mirko Severi
- Donghui Shangguan
- Daniel Shapero
- Thomas Shaw
- Joseph Shea
- David Shean
- Peter Sheehan
- Hayley Shen
- Sam Sherriff-Tadano
- Mohammed Shokr
- Alessandro Silvano
- Ian Simmonds
- Alexander R. Simms
- Sebastian B. Simonsen
- Anatoly Sinitsyn
- Ylva Sjöberg
- Henriette Skourup
- Thomas Slater
- Andrew Smedley
- Robin Smith
- Benjamin Smith
- Craig Smith
- Andrew Sole
- Martín Soto
- Kyra St Pierre
- Knut Stamnes
- Leigh Stearns
- Christian Steger
- Harry Stern
- Marek Stibal
- Nicolas Stoll
- Julienne Stroeve
- Tazio Strozzi
- Matthew Sturm
- Shin Sugiyama
- Deborah Sulsky
- W. Sun
- Sainan Sun
- Jenna Sutherland
- Johannes Sutter
- Tyler Sutterley
- Kate Swanger
- Sajad Tabibi
- Rachel Tilling
- Andrea Tommasi
- Bruno Tremblay
- Martin Truffer
- Mark Tschudi
- Jenny Turton
- Samuel Tuttle
- Ryu Uemura
- Christiaan van Dalum
- Willem Jan van de Berg
- Roderik van de Wal
- Michiel van den Broeke
- Ward van Pelt
- Maurice Van Tiggelen
- Wesley Van Wychen
- Irena Vankova
- Lauren Vargo
- Vincent Verjans
- Timo Vihma
- Saurabh Vijay
- Kjetil Våge
- Robert Wagner
- Till Wagner
- Keguang Wang
- Libo Wang
- Yetang Wang
- Xiaowen Wang
- jiangeng Wang
- Shujie Wang
- Caixin Wang
- Wenli Wang
- Martin Wearing
- Blake P. Weissling
- Andreas Wernecke
- Sebastian Westermann
- Sebastian Wetterich
- Nander Wever
- Rosemary Willatt
- Ian Willis
- Solveig Havstad Winsvold
- Eric Wolff
- Mareile Wolff
- Melissa Wrzesien
- Jan Wuite
- Surui Xie
- Shiming Xu
- Satoru Yamaguchi
- Hajime Yamaguchi
- Xiao Yang
- Qinghua Yang
- Kang Yang
- Yufang Ye
- Masakazu Yoshimori
- Krzysztof Zawierucha
- Enze Zhang
- Zhen Zhang
- Jiahua ZHANG
- Chongmin Zhang
- Xi Zhao
- Thomas Zwinger
- Henning Åkesson
- Einar Örn Ólason