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Methane Emission to the Atmosphere Bazhin N.M. Institute of Chemical Kinetics and Combustion Novosibirsk RUSSIA
Methane in Atmosphere – Concentration 1.8 ppm Content in Atmosphere 5000 Tg (1 Tg = g = 1 mln of tons) Flux 500 Tg /year
Methane concentration dependence on time
Methane concentration and world population
Methane sources Emission from Swamps, Rice fields, Lakes and Oceans - 44%
Bubbles formation in rice field model
Upper border of bubbles position Dimensionless unit of depth
Artificial atmospheres: nitrogen - oxygen Kuzmin et all, Limnology and Oceanology
If W 1 (z) = W 10 then Transport in region I Border conditions N2N2
Transport in region II Main idea: - sink to the bubbles - molar part in the bubbles
Exponential approximation to W(z) W 1 (z) = W 10 exp(-νz)
CH 4 and N 2 concentrations on depth, W 1 (z) = W 10 exp(-νz)
Bubbles composition on depth
Methane concentration on depth
This Week—Tropospheric Chemistry READING: Chapter 11 of text Tropospheric Chemistry Data Set Analysis.
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AGU2012-GC31A963: Model Estimates of Pan-Arctic Lake and Wetland Methane Emissions X.Chen 1, T.J.Bohn 1, M. Glagolev 2, S.Maksyutov 3, and D. P. Lettenmaier.
ECOSYSTEMS & HUMAN INTERFERENCES II. Carbonification The destruction of vegetation & burning of fossils are main factors in increasing carbon in the.
1 Omowumi Alabi Department of Geosciences University of Missouri-Kansas City Kansas City, MO.
1 UIUC ATMOS 397G Biogeochemical Cycles and Global Change Lecture 14: Methane and CO Don Wuebbles Department of Atmospheric Sciences University of Illinois,
Introduction to Atmospheric Chemistry Measurements-I John Ortega National Center for Atmospheric Research Boulder, CO, USA National Center for Atmospheric.
DEVELOPMENT OF THE ATMOSPHERE Authors:: Bajnóczy Gábor Kiss Bernadett BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS DEPARTMENT OF CHEMICAL AND ENVIRONMENTAL.
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Martin Manning and Greg Bodeker National Institute of Water and Atmospheric Research Presented at ‘Expert meeting on assessment of contributions to climate.
4.4 Climate Change Carbon dioxide and water vapor are the most significant greenhouse gases. Greenhouse gases: CO 2 Carbon Dioxide H 2 O Water.
Climate Systems Chapter 15. Clicker Question What is the approximate CO 2 content of the atmosphere? –A % (40 ppm) –B. 0.04% (400 ppm) –C. 0.4%
Composition of the Atmosphere Today’s Objectives 1. Distinguish gases between fixed, variable, and particulate 2. Identify the Greenhouse gases 3. Describe.
Methane Concentrations and Biogeochemistry in Lake Sediments from Stordalen Mire in Sub-Arctic Sweden Madison Halloran¹, Joel DeStasio², Lance Erickson³,
Agricultural Gas and Aerosol Experiment (AGGAE) by Steven C. Wofsy Scientific background and overarching questions Agriculture is a major industrial sector.
Discussion 1 Wednesday 1/30. Weather vs. Climate Weather Instantaneous description of what the atmosphere is doing at a particular time and place Climate.
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1 Nitrogen in the Environment David Gay 1 & Bob Hall 2 1 NADP Program Office, (217) U.S. Environmental.
Dissolved methane anomalies over the East – Siberian Arctic Shelf. Modeling results V.V. Malakhova, E.N. Golubeva ICMMG SB RAS, Russia, Novosibirsk Dissolved.
Explain how chemical and physical processes cause carbon to cycle through the major earth reservoirs.
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Nitrous Oxide Focus Group Nitrous Oxide Focus Group launch event Friday February 22 nd, 2008 Dr Jan Kaiser Dr Parvadha Suntharalingam The stratospheric.
THE ATMOSPHERE: OXIDIZING MEDIUM IN GLOBAL BIOGEOCHEMICAL CYCLES EARTH SURFACE Emission Reduced gas Oxidized gas/ aerosol Oxidation Uptake Reduction Atmospheric.
The Atmosphere: Oxidizing Medium In Global Biogeochemical Cycles EARTH SURFACE Emission Reduced gas Oxidized gas/ aerosol Oxidation Uptake Reduction.
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A COMPARISON OF INTERNAL STRUCTURE OF GANYMEDE AND TITAN. Dunaeva A.N., Kronrod V.A., Kuskov O.L. Vernadsky Institute of Geochemistry and Analytical Chemistry,
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Examples Work Quietly on these Problems How many grams are in 5 kilograms? How many kilometers are in 25.0 meters How may centimeters are in 45.0 hectometers?
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