The HESS 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 25, 2021.
- Benjamin Abbott
- Philippe Ackerer
- Nans Addor
- Elisa Adirosi
- Ebrahim Ahmadisharaf
- Bodo Ahrens
- Mohammad Al-Qinna
- Clément Albergel
- Joseph Alfieri
- Genevieve Ali
- Hala Aljassar
- Antoine Allam
- Scott T. Allen
- Mohammad Alobaidi
- Alice Alonso
- Amobichukwu Amanambu
- Inês Amorim
- Kokou Adambounou Amouzou
- Ray Anderson
- Martha Anderson
- Dr. Dylan Anderson
- Stacey Archfield
- Moshe Armon
- Louise Arnal
- Patrick Arnaud
- Richard Arsenault
- Kristi R. Arsenault
- José Luis Arumí
- Mishra Ashok
- Francesco Avanzi
- Jantiene Baartman
- Roland Baatz
- Vladan Babovic
- Mehdi Bahrami
- Junhong Bai
- Qing Bao
- Adrià Barbeta
- Marlies H Barendrecht
- Gabriele Baroni
- Paul Bates
- Pedro Batista
- Peter Bauer-Gottwein
- Hiroko Beaudoing
- Kevin Befus
- Shany Ben Moshe
- Rasmus Benestad
- Paolo Benettin
- Wouter Berghuijs
- Harsh Beria
- Anita Bernatek-Jakiel
- Erin Berryman
- Miriam Bertola
- Emanuele Bevacqua
- Keith Beven
- Daniel Beysens
- Aditi Bhaskar
- Sylvain Biancamaria
- Marc Bierkens
- Magdalena Bieroza
- Daniela Biondi
- Steffen Birk
- Christian Birkel
- J. Blanchet
- John Bloomfield
- Frank Blumensaat
- Jacques Bodin
- Thom Bogaard
- Heye Bogena
- Brunella Bonaccorso
- Giorgio Boni
- Martijn Booij
- Pedro Luiz Borges Chaffe
- Fred C. Bosveld
- Andrea Bottacin Busolin
- Marie-Amélie Boucher
- Chris Bradley
- Steven Brantley
- Marcus Breil
- Adèle Bressy
- Pierre Brigode
- Luca Brocca
- Gabriel Bromley
- Andrea Brookfield
- Giuseppe Brunetti
- Manuela Irene Brunner
- Vicente Burchard-Levine
- Peter Burek
- Michael Burnett
- Douglas Burns
- James Buttle
- Wouter Buytaert
- Janice Bytheway
- Huayang Cai
- Hu Caihong
- C. Camerlynck
- Carmelo Cammalleri
- Qing Cao
- Patrice Carbonneau
- Coleen Carranza
- Ian Cartwright
- David Casson
- Luis Castellanos
- Céline Cattoën-Gilbert
- Serena Ceola
- Artemi Cerdà
- Juan Carlos Chacon-Hurtado
- André Chanzy
- Rensheng Chen
- Xi Chen
- Hua Chen
- Bo Chen
- Reynold Chow
- Francesco Ciliberti
- Holger Class
- Miriam Coenders-Gerrits
- David Cole
- Gabriela Collao Barrios
- Emily Collier
- Luca Comegna
- Laura Condon
- Lauren Cook
- Sarah Cooley
- Antonio Coppola
- Anais Couasnon
- Benoit Cournoyer
- Rory Cowie
- Gemma Coxon
- James Craig
- Fabio Crameri
- Elena Cristiano
- Joan Cuxart
- Simon Dadson
- Guy Dagan
- Ofer Dahan
- Marco Dal Molin
- José Gilberto Dalfré Filho
- Emma Daniels
- Frances Davenport
- Cedric David
- Felipe de Barros
- Gabriëlle De Lannoy
- Davide Luciano De Luca
- Gerrit H. de Rooij
- Lotte de Vos
- Anthony DeAngelis
- Joni Dehaspe
- Frederick Delay
- Laurent Delobbe
- Moctar Dembélé
- Gökben Demir
- Jasper Denissen
- Marco Dentz
- Denise Dettmering
- Balaji Devaraju
- Naresh Devineni
- Mariaines Di Dato
- Vittorio Di Federico
- Jennifer Dierauer
- Jörg Dietrich
- Abhirup Dikshit
- Katya Dimitrova Petrova
- Barnaby Dobson
- Isabel Cristina Dominguez Rivera
- Francina Domínguez
- Leonardo David Donado
- James Done
- Jingnuo Dong
- Francesco Dottori
- Claude Doussan
- David Dralle
- Doris Duethmann
- Rémi Dupas
- Pia Ebeling
- Yaniv Edery
- Uwe Ehret
- Sophie Ehrhardt
- Muhammad Azhar Ehsan
- Marie Ekstrom
- Libor Elleder
- David Ellison
- Kolbjorn Engeland
- Ertug Ercin
- Paolo Espa
- Richard L.H. Essery
- Jaivime Evaristo
- Guillaume Evin
- Ying Fan
- Y.R. Fan
- Chloé Fandel
- Kuai Fang
- Carlos Faundez Urbina
- Andrew Feldman
- Fabrizio Fenicia
- Grant Ferguson
- Daniel Fernandez-Garcia
- L. Fiorani
- Aldo Fiori
- Mauro Fischer
- Denis Flynn
- Adrià Fontrodona-Bach
- Jan Willem Foppen
- Ophelie Fovet
- Marco Franchini
- TRENTON Franz
- Frederic Frappart
- Martin Frey
- Jan Friesen
- Patrick Frings
- C. S. Fu
- Carlos Fuentes
- Josef Fürst
- Marco Gabella
- Francesc Gallart
- Poulomi Ganguli
- Hongkai Gao
- Scott Gardner
- Matthias Gassmann
- Eric Gaume
- Helena Gerdener
- Geruo Geruo A
- Shervan Gharari
- DEBJANI GHATAK
- Teamrat Ghezzehei
- Marina GILLON
- Auguste Gires
- Manuela Girotto
- Matteo Giuliani
- Ignazio Giuntoli
- Sharlene L. Gomes
- Jose Alfonso Gomez
- Avantika Gori
- Francesco Granata
- Roberto Greco
- Christian Griebler
- Jasper Griffioen
- Dejan Grigillo
- Salvatore Grimaldi
- Jannis Groh
- Inge Grünberg
- Heidi Grüneis
- Huade Guan
- Serena Guarino Lo Bianco
- Lukas Gudmundsson
- Weidong Guo
- Jaime Gómez-Hernández
- Andreas Güntner
- Uwe Haberlandt
- Florence Habets
- Kirsti Hakala
- Bruno Hamelin
- Songjun Han
- Jamie Hannaford
- Angela Hansen
- Zengchao Hao
- Vittal Hari
- Adrian Harpold
- Shaun Harrigan
- Andreas Hartmann
- Abheera Hazra
- Jory Hecht
- Salim Heddam
- Ingo Heidbüchel
- Mohamad Hejazi
- Björn Helm
- Jonathan Herman
- joost herweijer
- Suresh Hettiarachchi
- Anne Hoek van Dijke
- Jan Hofste
- Clara Hohmann
- Tegan Holmes
- Pascal Horton
- Nicholas Howden
- Markus Hrachowitz
- Anning Huang
- Petra Hulsman
- Eric Hunt
- Rolf Hut
- Ruben Imhoff
- Sharad Jain
- Ehsan Jalilvand
- Robert Jane
- Fernando Jaramillo
- Nicholas Jarvis
- Marie-Ève Jean
- Gerhard Jentzsch
- Graham Jewitt
- Sanjeev Kumar Jha
- Peng Ji
- Peng Jiang
- Feiqing Jiang
- Wenzhe Jiao
- César Dionisio Jiménez-Rodríguez
- Anne Johannet
- Margret Johst
- Matthew D. Jones
- C. Nathan Jones
- Nils Kaplan
- George Karatzas
- K.S. Kasiviswanathan
- Martina Kauzlaric
- Nerantzis Kazakis
- Qian Ke
- Donald A. Keefer
- Christa Kelleher
- Jeffrey Kennedy
- Hannah Kerner
- Chris Kerr
- Jongho Keum
- Jessica Keune
- Mehdi Khaki
- Mohamed Khalil
- Usman T Khan
- Jens Kiesel
- Daeha Kim
- Sangdan Kim
- Jinwon Kim
- Minseok Kim
- John King
- Georgiy Kirillin
- Thomas Kjeldsen
- Axel Kleidon
- Alexander Klimchouk
- Daniel Klotz
- Gerard Kluitenberg
- Wouter Knoben
- John Knowles
- Hagen Koch
- Krzysztof Kochanek
- John Kochendorfer
- John Koestel
- Stefan Kollet
- Yanlong Kong
- Akash Koppa
- Kathryn Korbel
- Kritika Kothari
- Basil Kraft
- Frederik Kratzert
- Valentina Krysanova
- Michael Kunz
- Sylvain Kuppel
- Karl Kästner
- Angelika Kübert
- Kathrin Kühnhammer
- Anthony Ladson
- Ryan Lagerquist
- Noemí Lana-Renault
- Rosanna Lane
- Jens Lange
- Karthikeyan Lanka
- Orgogozo Laurent
- Jason Leach
- José L. J. Ledesma
- Thomas Lees
- Carl Legleiter
- Peter Lehmann
- Hidde Leijnse
- Jussi Leinonen
- Guoyong Leng
- Elena Leonarduzzi
- Sarah Leray
- Nolwenn Lesparre
- Delphis Levia
- Vincenzo Levizzani
- Elizabeth Lewis
- Quinn Lewis
- Chaofan Li
- Yan Li
- Dr. Qian Li
- Li Li
- Jianzhu Li
- Mingxing Li
- Dongyue Li
- Kairong Lin
- Peirong Lin
- Jintao Liu
- Pan Liu
- Wenzhao Liu
- Hongli Liu
- Di Long
- Carina Lopes
- Athanasios Loukas
- Ming Luo
- Stefanie Lutz
- Shaoning Lv
- Hang Lv
- Steve Lyon
- Weiqiang Ma
- Chao Ma
- Feng Ma
- Bruce MacVicar
- Viviana Maggioni
- Ruth Magh
- Fadji Zaouna Maina
- Salvatore Manfreda
- Rodrigo Manzione
- Stefano Manzoni
- José Marengo
- Richard Marijnissen
- Richard marinos
- Christoph Marty
- Christian Massari
- William J Massman
- Stefano Materia
- José Matos
- Michael Mayer
- G. F. McIsaac
- Mesfin Mergia Mekonnen
- Adrian Mellage
- Lorenzo Mentaschi
- Katrin Meusburger
- Chenxi Mi
- Adrien Michel
- Hans Middelkoop
- Dave Milledge
- Priscilla Minotti
- Ben Mirus
- Carl Mitchell
- Christian Moeck
- Hamed Moftakhari
- Nicola Montaldo
- Mario Montopoli
- Eric Moore
- Eric Morales-Casique
- Mariano Moreno de las Heras
- Luis Moreno-Merino
- Efrat Morin
- Rebecca Mott
- Marc F. Muller
- Shigeki Murakami
- Conor Murphy
- Andreas Musolff
- Anselme Muzirafuti
- Mirko Mälicke
- Hannes Müller-Thomy
- Estela Nadal Romero
- Pamela Nagler
- Gustavo Naumann
- Mohammad Nazeri Tahroudi
- John Ndiritu
- Daniele Nerini
- Guangheng Ni
- Potter Nick
- Yun Peng Nie
- Wanshu Nie
- Karina Nielsen
- Remko C. Nijzink
- Enno Nilson
- John R. Nimmo
- Alon Nissan
- Sylvestre Njakou Djomo
- Claudia Notarnicola
- Vincent Odongo
- Fred Ogden
- Charles Onyutha
- Rene Orth
- Claire Oswald
- Xicai Pan
- Saket Pande
- Georgia Papacharalampous
- Christina Papadaki
- Simon Michael Papalexiou
- Juraj Parajka
- Mario Parise
- Yongeun Park
- Paolo Paron
- Athanasios Paschalis
- Nitesh Patidar
- Valentijn Pauwels
- Raphaël Payet-Burin
- Daniele Pedretti
- Murray Peel
- Nadav Peleg
- Daniele Penna
- Gopal Penny
- Elisa Perrone
- Michiel Pezij
- Francisco J. Peñas
- Andres Peñuela Fernandez
- Francesca Pianosi
- Rafael Pimentel
- Stephen Plont
- Sandra Pool
- Federico Porcu
- Aaron Potkay
- Daniel Power
- Ilaria Prosdocimi
- Mario Putti
- Jianxiu Qiu
- Kimberly Quesnel
- Julianne Quinn
- Elham R. Freund
- Jesse Radolinski
- Shaily Rahman
- Adnan Rajib
- Oldrich Rakovec
- Maximilian Ramgraber
- Roberto Ranzi
- Giovanni Ravazzani
- Laura Read
- Janneke Remmers
- Luigi Renzullo
- Marco Restano
- Elena Ridolfi
- Riccardo Rigon
- Francois Rineau
- Pauline Rivoire
- D.M. Robertson
- Jim Roche
- Jose Rodriguez
- Nemesio Rodriguez-Fernandez
- Emanuele Romano
- Renata Romanowicz (deceased)
- Josyane Ronchail
- Donald Rosenberry
- Rafael Rosolem
- Pekka M. Rossi
- Laddaporn Ruangpan
- Matteo Rubinato
- Matti Räsänen
- Maarten W. Saaltink
- Mohammad Safeeq
- Eric Salathé
- Eduardo Emilio Sanchez-Leon
- Xavier Sanchez-Vila
- Yanfang Sang
- Dr. Adarsh Sankaran
- Hubert H.G. Savenije
- Bridget Scanlon
- Andreas Scheidegger
- Semjon Schimanke
- Marc Schleiss
- Katrin Schneider
- Timothy Schneider
- Ute Schoknecht
- Gerrit Schoups
- Tobias Schuetz
- Thomas V. Schuler
- Guy J.-P. Schumann
- Rafael Schäffer
- Jan Seibert
- Aynur Sensoy
- Eunkyo Seo
- Alyssa Serlet
- Matteo Settura
- Piet Seuntjens
- Ashish Sharma
- Bora Shehu
- Chaopeng Shen
- C. L. Shie
- Kevin Shook
- Anna Sikorska-Senoner
- Scott Sinclair
- Shailesh Kumar Singh
- Satinder Pal Singh
- Murugesu Sivapalan
- Louise Slater
- Lenka Slavíková
- Eric Small
- Aaron Smith
- Roger Smith
- Eric Smyth
- Matthias Speich
- Diana Spieler
- Mojca Sraj
- Mattia Stagnaro
- Christian Stamm
- Maria Staudinger
- Gert-Jan Steeneveld
- James Stegen
- Lina Stein
- Michael Stewart
- Simon Stisen
- Michael Stockinger
- Cathelijne Stoof
- Ulrich Strasser
- Bob Su
- Michiaki Sugita
- Ting Sun
- Wenchao Sun
- Qiaohong Sun
- Ge Sun
- Nicola Surian
- Samuel Jonson Sutanto
- Kazuyoshi Suzuki
- Somil Swarnkar
- Brigitta Szabó
- Jozsef Szilagyi
- Liang Tan
- Maria Giovanna Tanda
- Marco Tangi
- Flavia Tauro
- Faraz S. Tehrani
- Arnaud Temme
- Irene Teubner
- Adriaan J. (Ryan) Teuling
- Aynom Teweldebrhan
- Søren Thorndahl
- Julie Thériault
- Fuqiang Tian
- Timothy Tiggeloven
- Erik Tijdeman
- Amaury Tilmant
- Wendy Timms
- Jason Todd
- Adrin Tohari
- Elena Toth
- Phoung Tran
- Ivonne Trebs
- Mads Troldborg
- Franz Tscheikner-Gratl
- Obbe Tuinenburg
- Michael J Tumbare
- Patrick Tuohy
- Sean Turner
- Kevin Turner
- Kenichi Ueno
- Remko Uijlenhoet
- Anna Ukkola
- N V Umamahesh
- Celine van Bijsterveldt
- Michel Van Camp
- Jorn Van de Velde
- Ruud van der Ent
- Hans van der Kwast
- Marijn van der Velde
- Rogier Van der Velde
- Tim van Emmerik
- Chiel van Heerwaarden
- Anne Van Loon
- Ilja van Meerveld
- Adriaan van Natijne
- Meine van Noordwijk
- Willem van Verseveld
- Remy Vandaele
- Karl Vanderlinden
- Pablo Vega García
- Ivan Vergara
- Willem Vervoort
- Alberto Viglione
- Vincent Vionnet
- Ate Visser
- Johannes Vogel
- Nathalie Voisin
- Jana von Freyberg
- Bernard Voortman
- Jasper Vrugt
- Luka Vucinic
- Nicolás Vásquez
- Alexandre Wadoux
- Thorsten Wagener
- Thomas Wahl
- Simon Walker
- John Wallbank
- Dagang Wang
- Binbin Wang
- Junye Wang
- Sheng Wang
- Jinwen WANG
- Shanyun Wang
- Ze Wang
- Li-Pen Wang
- Lan Wang-Erlandsson
- Conrad Wasko
- Leonard Wassenaar
- Arnaud Watlet
- John Webb
- Imeshi Weerasinghe
- Sylvain Weill
- Chani Welch
- Mathew Wells
- Marthe Wens
- Craig Wilkie
- Henry Wilson
- Tanja Winterrath
- Brent Wolfe
- Wilfred Wollheim
- Daniel Wright
- Wenyan Wu
- Shuanglei Wu
- Xushu Wu
- Briana Wyatt
- Zhongrun Xiang
- Xiaofeng Xu
- Li Xu
- Lei Xu
- Guoji Xu
- Dai Yamazaki
- Lei Yan
- Hanbo Yang
- Yongguo Yang
- Bai Yang
- Chen Yang
- Haw Yen
- Omer Yetemen
- Yonghong Yi
- Koray K. Yilmaz
- Dongqin Yin
- Bin Yong
- Lianyu Yu
- Shanshui Yuan
- Benjamin F. Zaitchik
- Chiara Zanotti
- Yijian Zeng
- Yujin Zeng
- Lu Zhang
- Zhiqiang Zhang
- Qian Zhang
- Miao Zhang
- Shuai Zhang
- Long Zhao
- Tongtiegang Zhao
- Hong Zhao
- Tianjie Zhao
- D. Zheng
- Tian Zhou
- Chao Zhou
- Enda Zhu
- Margaret Zimmer
- Li Zongxing
- Jakob Zscheischler
- Giulia Zuecco
- Hatice Çıtakoğlu