The OS 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 17, 2021.
- Matthew Alkire
- Eva Alvarez
- Athanasios Angeloudis
- Arne Arns
- Vincenzo Artale
- Lars Axell
- Sheldon Bacon
- David Bailey
- M. Baird
- Paul Barker
- Alexander Barth
- Cynthia Juyne Beegle-Krause
- Mike Bell
- Maristella Berta
- Anthony Bosse
- Jacqueline Boutin
- Samuel Brenner
- Jenny Brown
- Sally Brown
- Bruno Buongiorno Nardelli
- Hans Burchard
- James H. Butler
- Brett Buzzanga
- Do-Seong Byun
- Carolina Cantoni
- Xavier Carton
- Dr. Abhisek Chatterjee
- Gengxin Chen
- Lijing Cheng
- Yu Cheng
- Se-Hyeon Cheon
- Anson Cheung
- Maria Paz Chidichimo
- Andrew Chiodi
- Jennifer Clarke
- Sam Cornish
- Pierre Delmelle
- Marcus Dengler
- Christian Dieterich (deceased)
- Manuel Diez-Minguito
- Anusha Dissanayake
- Yvan Dossmann
- Marcelo Dottori
- Yann Drillet
- Michael Dunphy
- Tor Eldevik
- Stephen English
- Stanislav Ermakov
- Tal Ezer
- Dr. Silvia Falco
- Rainer Feistel
- Ming Feng
- Àngels Fernández-Mora
- Luis Ferrer
- David Ford
- Michael Foreman
- Dr. Nicholas Foukal
- Thomas Frederikse
- Atsushi Fujimura
- Maribel I. García-Ibáñez
- Jenson V George
- Isabelle Giddy
- Sarah Gille
- Ricardo González‐Gil
- Vinnet Goswami
- Mattias Green
- Luke Gregor
- Annalisa Griffa
- Sjoerd Groeskamp
- Kathy Gunn
- Michael Hart-Davis
- Susan Hartman
- Alonso Hernández Guerra
- Daniel Heydebreck
- Jo Hopkins
- Isabel Houghton
- Shijian Hu
- Huang Huang
- Chris Hughes
- John M. Huthnance
- Taka Ito
- Ivica Janeković
- Ian Jenkinson
- Yanli Jia
- Milla M. Johansson
- Gregory Johnson
- Kyung Tae Jung
- Jules Kajtar
- Caroline Katsman
- Katsuro Katsumata
- Shinichiro Kida
- Lauren Kipp
- Birgit Klein
- Nikolay V. Koldunov
- Yavor Kostov
- Inga Monika Koszalka
- Ashwini Kumar
- Young-Oh Kwon
- Jochen Kämpf
- Chris Lai
- Gregory Lane-Serff
- Dewi Le Bars
- Isabela Le Bras
- Patrice Le Gal
- Daniel Lea
- Karsten Lettmann
- Marina Levy
- Zhi Li
- Chunyan Li
- Enhui Liao
- Zhiyu Liu
- Svetlana Losa
- Rick Lumpkin
- Carolina M.L. Camargo
- Leo Maas
- Graeme MacGilchrist
- Marcello G. Magaldi
- Marta Marcos
- Veselka Marinova
- Chris Marsay
- David P. Marshall
- Torge Martin
- Jann Paul Mattern
- I. Nicholas McCave
- Michael J McPhaden
- Jennifer Mecking
- Matthew Menary
- Herle Mercier
- Amelie Meyer
- Alexey Mishonov
- ADITI MODI
- Dr. Soumya S Mohan
- Anne Molcard
- Andrew Moore
- James Morison
- Anna Mujal-Colilles
- Enda Murphy
- Dr. Erhan Mutlu
- Vasco Müller
- Jens Daniel Müller
- Yoshihiro Nakayama
- Peter Oke
- Antonio Olita
- Alejandro Orfila
- Jason Otero Torres
- Jeffrey Paduan
- Ivane Pairaud
- Vimlesh Pant
- Johannes Pein
- Josep L. Pelegrí
- Dongju Peng
- Clark Pennelly
- Renellys C. Perez
- Igor Polyakov
- Rui Ponte
- Esther Portela Rodriguez
- Brian Powell
- Laura Prieto
- William Pringle
- David Pugh
- Gilles Reverdin
- Jan Klaus Rieck
- Sarah Ringerud
- Dr. Ramiro Riquelme-Bugueño
- Keith Rodgers
- Regina Rodrigues
- Laura Rontu
- Fabien Roquet
- Sarah Rosengard
- Alvaro Santamaría-Gómez
- Agus Santoso
- Yoshinori Sasaki
- Jan Saynisch-Wagner
- Michael Schindelegger
- Kristian Schlegel
- Johannes Schulz-Stellenfleth
- Dr. Yunchao Shu
- C K Shum
- Frank Siegismund
- Jozef Skakala
- Ingunn Skjelvan
- Ragnheid Skogseth
- Lars H. Smedsrud
- Srikanth Somayajula
- Haibin Song
- Rolf Sonnerup
- Tarmo Soomere
- Geoff Stanley
- Kremena Stefanova
- David Stevens
- Ata Suanda
- Zoltan Szuts
- Yohei Takano
- Stefan Talke
- Anna Teruzzi
- Jan-Erik Tesdal
- Charles-Emmanuel Testut
- Andrew Thompson
- Mathias Tomczak
- Riccardo Torres
- Corinne Trott
- David Turner
- Hiroshi Uchida
- Akhil V P
- Steven van Heuven
- Ivica Vilibić
- Seaver Wang
- Min Wang
- Mark Warner
- Burkard Watermann
- Christopher Watson
- Andrew J. Watson
- Darryn Waugh
- David Webb
- Zexun Wei
- Wilbert Weijer
- Neil Wells
- Christian Wengel
- John Wilkin
- Joanne Williams
- Andrew Willmott
- Sophie-Berenice Wilmes
- Karen Wishner
- Emma Worthington
- Lichuan Wu
- Shang-Ping Xie
- Yuanyuan Xu
- Sayaka Yasunaka
- Stefanie Ypma
- Edward Zaron
- Mathias Zeller
- Jiaxu Zhang
- Wuchang Zhang
- Jan Zika
- George Zodiatis
- Eduardo Zorita