The ACP 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 9, 2009.
- Wenche Aas
- Jonathan Abbatt
- Adetutu M. Aghedo
- Lucas Alados-Arboledas
- Andres Alastuey
- Simon Alexander
- M. Liz Alexander
- M. Rami Alfarra
- Vassilis Amiridis
- Gary Andersen
- Maria Andersson
- Albert Ansmann
- Takemitsu Arakaki
- Robert Arnts
- Antti Arola
- Akua Asa-Awuku
- Roger Atkinson
- Michael Barkley
- Brice Barret
- Tim Bates
- Andreas Behrendt
- Steffen Beirle
- Nicolas Bellouin
- Uwe Berger
- Peter Bernath
- Harald Berresheim
- Allan Bertram
- Thomas Birner
- William Blackwell
- Thomas Blunier
- Greg Bodeker
- Chris Boone
- Agnès Borbon
- Astrid Bracher
- Araceli Bracho Nunez
- Peter Braesicke
- Theo Brauers
- Jean-Louis Brenguier
- Christoph Brühl
- Michael Buchwitz
- Peter Builtjes
- James B. Burkholder
- Gary Burns
- Tim Butler
- Francesco Cairo
- Peter Caldwell
- Lucy Carpenter
- Bob Cary
- Jeffrey Chagnon
- Chih-Chung Chang
- Surajit Chattopadhyay
- Patrick Chazette
- Zhongming Chen
- Gao Chen
- Shuhua Chen
- Martyn Chipperfield
- Magda Claeys
- Anja Claude
- Hugh Coe
- Michael Coffey
- Ronald Cohen
- Pierre-Francois Coheur
- Isabelle Coll
- Martine Collaud Coen
- Jennifer Comstock
- James Corbett
- Francesca Costabile
- Richard Coulter`
- David Covert
- Lawrence Coy
- Eben Cross
- Michael Cubison
- Joachim Curtius
- Thomas Custer
- Miikka Dal Maso
- Mauro Dall'Amico
- John Daniel
- Sean Davis
- Christopher Davis
- Gijs de Boer
- Benjamin de Foy
- Martine de Maziere
- Stefano Decesari
- Eric Defer
- Doug Degenstein
- Luca Delle Monache
- Paul DeMott
- Frank Dentener
- S.G. DeSouza-Machado
- Olivier Dessens
- Jack Dibb
- Steven Dobbie
- Josef Dommen
- James Donaldson
- James Dorsey
- James Drummond
- Thomas Duck
- Anu Dudhia
- Gaëlle Dufour
- Adolf Ebel
- Martin Ebert
- Mikael Ehn
- Magnus Strandmyr Eide
- Matthew Elrod
- Louisa Emmons
- Andreas Engel
- Richard Engelen
- Victor Estelles
- Mathew Evans
- Maria Cristina Facchini
- David Fahey
- Delphine Farmer
- Jerome Fast
- Richard Ferrare
- Ullrich Finke
- Bernard Fisher
- Harald Flentje
- Ian Folkins
- Renate Forkel
- Christian Frankenberg
- ROD FREHLICH
- Alan Fried
- Udo Friess
- Stacey Frith
- Tzung-May Fu
- Stephan Fueglistaler
- Masatomo Fujiwara
- Joseph Galewsky
- Rebecca Garland
- Michael Gauss
- András Gelencsér
- Christian George
- Chris Geron
- Andrew Gettelman
- Steven J Ghan
- Klaus Gierens
- Marco Giorgetta
- Sotirios Glavas
- Lori Glaze
- Peter Gleckler
- Manuel Gloor
- Annemieke Gloudemans
- David Golden
- Ellen Graber
- Amanda Grannas
- Martin Graus
- Volker Grewe
- Paul Griffiths
- Jens-Uwe Grooß
- Michel Grutter
- Jörg Gumbel
- Sachin S. Gunthe
- Panos Hadjinicolaou
- Hannele Hakola
- Craig Haley
- Thomas F. Hanisco
- Steven Hardiman
- Jeffrey Hare
- jean-michel hartmann
- Courtney Hatch
- Peter Haynes
- Colette Heald
- Dwayne Heard
- Dean Hegg
- Michaela I. Hegglin
- Detlev Helmig
- Francois Hendrick
- Stephan Henne
- Silvia Henning
- Daven Henze
- Hervé Herbin
- Jay Herman
- Hartmut Herrmann
- Peter Hess
- Eleanor Highwood
- Christian Hogrefe
- Chris Hostetler
- Sander Houweling
- Rong-Ming Hu
- Rynda Hudman
- Paula Hudson
- David Huestis
- Kara Huff Hartz
- Claire Hughes
- Hong Huo
- Kaarle Hämeri
- Michael Höpfner
- Yoshiteru Iinuma
- Laura Iraci
- Francesco Isotta
- Christoph Jacobi
- Lyatt Jaeglé
- Ruprecht Jaenicke
- D.A.J. Jaffe
- Aron Jazcilevich
- Jose-Luis Jimenez
- Pedro Jimenez-Guerrero
- Viju Oommen John
- Ben Johnson
- Carolyn Jordan
- Ralph Kahn
- Johannes Kaiser
- Lars Kaleschke
- Maria Kanakidou
- Konrad Kandler
- Thomas Karl
- Yoshio Kawatani
- James Kelly
- Astrid Kerkweg
- Veli-Matti Kerminen
- Frank Keutsch
- Jiyoung Kim
- Saewung Kim
- Ingo Kirchner
- Stanislav Kireev
- Jasper Kirkby
- Jörg Klausen
- Berk Knighton
- Kirk Knobelspiesse
- Daniel Knopf
- Harri Kokkola
- Monika Kopacz
- Alexei Korolev
- Radovan Krejci
- Jon Egill Kristjansson
- Maarten Krol
- Jesse Kroll
- Nana Kwamena
- Lauri Laakso
- Daniel Lack
- William Lahoz (deceased)
- Sara Lance
- Timo Lanki
- Alan Lapworth
- Allen Larar
- Vincent Larson
- Juliette LATHIERE
- Axel Lauer
- Mark G. Lawrence
- Pius Lee
- Julia Lee-Taylor
- Bernard Legras
- Wenfang Lei
- Glen Lesins
- Ingeborg Levin
- Zev Levin
- Alastair Lewis
- Hong Liao
- John Liggio
- Meiyun Lin
- Hsin-Mu Lin
- Che-Jen Lin
- Steve LINDBERG
- Xiaohong Liu
- Jane Liu
- Junfeng Liu
- Adrian Lock
- Ulrike Lohmann
- Giovanni Lonati
- Michael Long
- CHIU Long Sang Willie
- Douglas Lowenthal
- Armin Löscher
- Jianmin Ma
- Anne Marie Macdonald
- Matthew MacLeod
- Sasha Madronich
- Willy Maenhaut
- Natalie Mahowald
- Risto Makkonen
- Alistair Manning
- Nancy Marley
- Linsey Marr
- Randall V. Martin
- Guido Masiello
- Sherri Mason
- Steven Massie
- Jim Mather
- Atsushi Matsuki
- Volker Matthias
- John (Jack) McConnell
- John McCormack
- Sally McFarlane
- Greg McFarquhar
- Gordon McFiggans
- V. Faye McNeill
- David Mechem
- Thomas Mentel
- Greg Michalski
- Joseph Michalsky
- Dylan Millet
- Ryan Moffet
- Jana Moldanova
- Agnes Molnar
- Olaf Morgenstern
- Samuel Morin
- Hugh Morrison
- Daniel Murphy
- Rolf Müller
- Detlef Müller
- Eiko Nemitz
- Athanasios Nenes
- J. Andrew Neuman
- Sergey A. Nizkorodov
- Justus Notholt
- Satonori Nozawa
- Stefan Noël
- Leonidas Ntziachristos
- Luke Oman
- John Orlando
- Lesley Ott
- Jozef Pacyna
- Chan Pak Wai
- Laura Pan
- Diane Pendlebury
- Markus Petters
- Andreas Petzold
- Klaus Pfeilsticker
- Leonhard Pfister
- Kenneth Pickering
- Jeffrey Pierce
- Peter Pilewskie
- Michael Pilling
- Jean-Pierre Pinty
- Giovanni Pitari
- John Plane
- Laurier Poissant
- William Porch
- John Porter
- Mark Potosnak
- Fred Prata
- Ronald Prinn
- Joseph Prospero
- Manuel Pulido
- Birgit Quack
- Xavier Querol
- Gaby Radel
- Frank Raes
- burton ralph
- Rafael Ramos
- William Randel
- Cynthia Randles
- David Raymond
- William Read
- Claire Reeves
- John J. Remedios
- Lorraine Remer
- Xinrong Ren
- Philippe Ricaud
- Andreas Richter
- Katja Riedel
- Nicole Riemer
- Ilona Riipinen
- Zoran Ristovski
- Vincenzo Rizi
- Allen Robinson
- Geert-Jan Roelofs
- Maisa Rojas
- Diana Rose
- Daniel Rosenfeld
- Karen Rosenlof
- Leon Rotstayn
- Lynn M. Russell
- Petri Räisänen
- Alfonso Saiz-Lopez
- Satya Sardar
- Golam Sarwar
- Martijn Schaap
- Jamie J. Schauer
- Michael Schulz
- John H. Seinfeld
- Min Shao
- Theodore Shepherd
- Paul B. Shepson
- John Shilling
- Peter C. Siegmund
- Herman Sievering
- Sanford Sillman
- Heather Simon
- David Simpson
- Ramesh Singh
- Chris Sioris
- Franz Slemr
- Geoffrey Smith
- Harald Sodemann
- Roberto Sommariva
- Reinhold Spang
- Gerald Spindler
- Christoph Spirig
- Dominick Spracklen
- Michael Sprenger
- Johannes Staehelin
- Piet Stammes
- Charles Stanier
- Alexandra Steffen
- Martin Steinbacher
- Jörg Steinwagner
- Georgiy Stenchikov
- Philip Stevens
- Michael Stevens
- Douw Steyn
- Philip Stier
- Gabriele Stiller
- William Stockwell
- Andreas Stohl
- Kengo Sudo
- Nobuo Sugimoto
- Ryan Sullivan
- Dr. Peter Suppan
- Ralf Sussmann
- Robert Talbot
- Gareth Thomas
- Gary Thomas
- Anne Thompson
- Michael Tolocka
- Omar Torres
- Holger Tost
- Julio Tota
- Kleareti Tourpali
- Michael Town
- Thomas Trickl
- Win Trivitayanurak
- Barbara Turpin
- Solène Turquety
- Cynthia Twohy
- Nadine Unger
- Shawn Urbanski
- Veronica Vaida
- Maria Val Martin
- Gabor Vali
- Paul van Delst
- Aaron van Donkelaar
- Tony VanCuren
- Robert Vautard
- Guus Velders
- Vigdis Vestreng
- Jordi Vila-Guerau de Arellano
- Aki Virkkula
- Rainer Volkamer
- Andreas Volz-Thomas
- Roland von Glasow (deceased)
- Richard Vong
- Holger Vömel
- Ulrike Wacker
- Thomas Wagner
- Tao Wang
- Jian Wang
- Chengfeng Wang
- Shigong Wang
- Ingvar Wangberg
- carsten warneke
- Rodney Weber
- Mark Weber
- Philipp Weihs
- Paul Wennberg
- Heike Wex
- Eric Wilcox
- Oliver Wild
- Eric Williams
- Stephen Wilson
- Wilfried Winiwarter
- Folkard Wittrock
- Wolfram Wobrock
- John Worden
- Dui Wu
- Xiaozhen Xiong
- Kai Yang
- Jongheop Yi
- Robert Yokelson
- Stuart A. Young
- Valery Yudin
- Prodromos Zanis
- Yuanhang Zhang
- Qiang Zhang
- Mei Zheng
- Daniel Zhou
- Paquita Zuidema