Journal ArticleDOI
Global modeling of soil nitrous oxide emissions from natural processes
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TLDR
In this paper, the Community Land Model with coupled Carbon and Nitrogen cycles version 3.5 was extended with a module to estimate monthly varying nitrous oxide emissions between 1975 and 2008, and the model reproduces precipitation, soil temperature and observations of N2O emissions well at some but not at all sites and especially not during winter in higher latitudes.Abstract:
[1] Nitrous oxide is an important greenhouse gas and is a major ozone‒depleting substance. To understand and quantify soil nitrous oxide emissions, we expanded the Community Land Model with coupled Carbon and Nitrogen cycles version 3.5 by inserting a module to estimate monthly varying nitrous oxide emissions between 1975 and 2008. We evaluate our soil N2O emission estimates against existing emissions inventories, other process‒based model estimates, and observations from sites in the Amazon, North America, Central America, Asia, Oceania, Africa, and in Europe. The model reproduces precipitation, soil temperature, and observations of N2O emissions well at some but not at all sites and especially not during winter in the higher latitudes. Applying this model to estimate the past 24 years of global soil N2O emissions, we find that there is a significant decrease (increase) in soil N2O emissions associated with El Nino (La Nina) events.read more
Citations
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The terrestrial biosphere as a net source of greenhouse gases to the atmosphere
Hanqin Tian,Chaoqun Lu,Chaoqun Lu,Philippe Ciais,Anna M. Michalak,Josep G. Canadell,Eri Saikawa,Deborah N. Huntzinger,Kevin R. Gurney,Stephen Sitch,Bowen Zhang,Jia Yang,Philippe Bousquet,Lori Bruhwiler,Guangsheng Chen,Edward J. Dlugokencky,Pierre Friedlingstein,Jerry M. Melillo,Shufen Pan,Benjamin Poulter,Ronald G. Prinn,Marielle Saunois,Christopher R. Schwalm,Christopher R. Schwalm,Steven C. Wofsy +24 more
TL;DR: The cumulative warming capacity of concurrent biogenic methane and nitrous oxide emissions is a factor of about two larger than the cooling effect resulting from the global land carbon dioxide uptake from 2001 to 2010, which results in a net positive cumulative impact of the three greenhouse gases on the planetary energy budget.
Journal ArticleDOI
Global methane and nitrous oxide emissions from terrestrial ecosystems due to multiple environmental changes
Hanqin Tian,Guangsheng Chen,Guangsheng Chen,Chaoqun Lu,Xiaofeng Xu,Wei Ren,Bowen Zhang,Kamaljit Banger,Bo Tao,Shufen Pan,Mingliang Liu,Chi Zhang,Lori Bruhwiler,Steven C. Wofsy +13 more
TL;DR: In this article, the authors identified GHG-induced climate change as one of the most pressing sustainability challenges facing humanity today, posing serious risks for ecosystem health, including Methane (CH4) and nitrous oxide (N...
Journal ArticleDOI
The Global N2O Model Intercomparison Project
Hanqin Tian,Jia Yang,Chaoqun Lu,Rongting Xu,Josep G. Canadell,Robert B. Jackson,Almut Arneth,Jinfeng Chang,Guangsheng Chen,Philippe Ciais,Stefan Gerber,Akihiko Ito,Yuanyuan Huang,Fortunat Joos,Sebastian Lienert,Palmira Messina,Stefan Olin,Shufen Pan,Changhui Peng,Eri Saikawa,Rona Thompson,Nicolas Vuichard,Wilfried Winiwarter,Sönke Zaehle,Bowen Zhang,Kerou Zhang,Qiuan Zhu +26 more
TL;DR: In this paper, the global N2O Model Intercomparison Project (NMIP) was initialized with 10 state-of-the-art terrestrial biosphere models that include nitrogen cycling.
Journal ArticleDOI
Global and regional emissions estimates for N 2 O
Eri Saikawa,Eri Saikawa,Ronald G. Prinn,Edward J. Dlugokencky,Kentaro Ishijima,Geoff S. Dutton,Geoff S. Dutton,B. D. Hall,Ray L. Langenfelds,Yasunori Tohjima,Toshinobu Machida,M. Manizza,Matthew Rigby,Simon O'Doherty,Prabir K. Patra,C. M. Harth,Ray F. Weiss,Paul B. Krummel,M. van der Schoot,Paul J. Fraser,L. P. Steele,Shuji Aoki,Takakiyo Nakazawa,James W. Elkins +23 more
TL;DR: In this article, a comprehensive estimate of nitrous oxide (N2O) emissions using observations and models from 1995 to 2008 is presented, showing that global and regional emissions have an increasing trend between 1995 and 2008.
Water-Energy Nexus: Challenges and Opportunities
Diana Bauer,Mark Philbrick,Bob Vallario,Hoyt Battey,Zachary Clement,Fletcher Fields,Jennifer Li +6 more
TL;DR: In this paper, the authors discuss the role of technology in infrastructure protection/energy and power, water and waste management, environmental issues and disasters, and climate change in infrastructure management.
References
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Europe-wide reduction in primary productivity caused by the heat and drought in 2003
Philippe Ciais,Markus Reichstein,Nicolas Viovy,A. Granier,Jérôme Ogée,Vincent Allard,M. Aubinet,Nina Buchmann,C. Bernhofer,Arnaud Carrara,Frédéric Chevallier,N. de Noblet,Andrew D. Friend,Pierre Friedlingstein,Thomas Grünwald,Bernard Heinesch,Petri Keronen,Alexander Knohl,Gerhard Krinner,Denis Loustau,Giovanni Manca,Giorgio Matteucci,Franco Miglietta,Jean-Marc Ourcival,Dario Papale,Kim Pilegaard,Serge Rambal,G. Seufert,Jean-François Soussana,María José Sanz,Ernst Detlef Schulze,Timo Vesala,Riccardo Valentini +32 more
TL;DR: An increase in future drought events could turn temperate ecosystems into carbon sources, contributing to positive carbon-climate feedbacks already anticipated in the tropics and at high latitudes.
Journal ArticleDOI
Nitrous Oxide (N2O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century
TL;DR: In this paper, the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances were compared, and it was shown that N 2O emission currently is the single most important ozone-destroying emission and is expected to remain the largest throughout the 21st century.
Journal Article
Nitrous oxide (N_2O) : the dominanat ozone-depleting substance emitted in the 21st century
TL;DR: Nitrous oxide emission currently is the single most important ozone-depleting emission and is expected to remain the largest throughout the 21st century, and N2O is unregulated by the Montreal Protocol, which would enhance the recovery of the ozone layer from its depleted state and reduce the anthropogenic forcing of the climate system.
Journal ArticleDOI
The Community Climate System Model Version 4
Peter R. Gent,Gokhan Danabasoglu,Leo J. Donner,Marika M. Holland,Elizabeth Hunke,Steve R. Jayne,David M. Lawrence,Richard Neale,Philip J. Rasch,Mariana Vertenstein,Patrick H. Worley,Zong-Liang Yang,Minghua Zhang +12 more
TL;DR: The fourth version of the Community Climate System Model (CCSM4) was recently completed and released to the climate community as mentioned in this paper, which describes developments to all CCSM components, and documents fully coupled preindustrial control runs compared to the previous version.
Journal ArticleDOI
The Community Climate System Model Version 3 (CCSM3)
William D. Collins,Cecilia M. Bitz,Maurice L. Blackmon,Gordon B. Bonan,Christopher S. Bretherton,James A. Carton,Ping Chang,Scott C. Doney,James J. Hack,Tom Henderson,Jeffrey T. Kiehl,William G. Large,Daniel S. McKenna,Benjamin D. Santer,Richard D. Smith +14 more
TL;DR: The Community Climate System Model version 3 (CCSM3) as discussed by the authors is a coupled climate model with components representing the atmosphere, ocean, sea ice, and land surface connected by a flux coupler.