Xue Er De -Fen Library

Nonfiction 8

Atmospheric Methane: Sources, Sinks, and Role in Global by M. A. K. Khalil (auth.), M. A. K. Khalil (eds.)

By M. A. K. Khalil (auth.), M. A. K. Khalil (eds.)

Methane performs many very important roles within the earth's setting. it's a effective "greenhouse fuel" that warms the earth; controls the oxidizing ability of the ambience (OH) not directly affecting the cycles and abundances of many atmospheric hint gases; presents water vapor to the stratosphere; scavenges chlorine atoms from the stratosphere, terminating the catalytic ozone destruction by way of chlorine atoms, together with the chlorine published from the man-made chlorofluorocarbons; produces ozone, CO, and CO2 within the troposphere; and it really is an index of existence on the earth and so is found in better amounts in the course of hot interglacial epochs and dwindles to low degrees in the course of the chilly of ice a long time. by means of all measures, methane is the second one merely to CO2 in inflicting destiny worldwide warming. The e-book provides a entire account of the present knowing of atmospheric methane, and it really is an finish aspect for summarizing greater than a decade of extensive examine at the international assets, sinks, concentrations, and environmental function of methane.

Show description

Read or Download Atmospheric Methane: Sources, Sinks, and Role in Global Change PDF

Best nonfiction_8 books

Esprit ’89: Proceedings of the 6th Annual ESPRIT Conference, Brussels, November 27 – December 1, 1989

The sixth ESPRIT convention is being held in Brussels from the twenty seventh November to the 1 st December 1989. good over 1500 individuals from far and wide Europe are anticipated to wait some of the occasions throughout the week. The convention will supply the chance to be up to date at the result of ongoing Esprit tasks and to enhance Europe-wide contacts with colleagues, either inside a selected department of data expertise and throughout diversified branches.

The Large Scale Structure of the Universe

The importance of the current IAU symposium, "The huge Scale constitution of the Universe", thankfully calls for no elaboration by way of the editors. the standard of the big variety of observational and theoretical astrophysics contained during this quantity speaks for itself. the printed model of the lawsuits includes the entire contributions awarded on the symposium aside from the introductory lecture via V.

Regulation of Sexual Conduct in UN Peacekeeping Operations

This ebook significantly examines the reaction of the United international locations (UN) to the matter of sexual exploitation in UN Peace help Operations. It assesses the Secretary-General’s Bulletin on unique safeguard from Sexual Exploitation and Sexual Abuse (2003) (SGB) and its definition of sexual exploitation, along with sexual relationships and prostitution.

Atmospheric Methane: Sources, Sinks, and Role in Global Change

Methane performs many very important roles within the earth's surroundings. it's a powerful "greenhouse fuel" that warms the earth; controls the oxidizing skill of the ambience (OH) ultimately affecting the cycles and abundances of many atmospheric hint gases; offers water vapor to the stratosphere; scavenges chlorine atoms from the stratosphere, terminating the catalytic ozone destruction via chlorine atoms, together with the chlorine published from the man-made chlorofluorocarbons; produces ozone, CO, and CO2 within the troposphere; and it's an index of lifestyles on the earth and so is found in better amounts in the course of hot interglacial epochs and dwindles to low degrees in the course of the chilly of ice a while.

Extra info for Atmospheric Methane: Sources, Sinks, and Role in Global Change

Sample text

G. stands for Trace Gas. vacuum crushing with rasp crushing with milling cutter vacuum Pearman et a1. (1986) melting vacuum Stauffer et a1. (1985) meltingrefreezing repeated melting melting Extraction method vacuum He pressurization vacuum Conditions before extraction Craig & Chou (1982) Khalil & Rasmussen (1982) Rasmussen & Khalil (1984) Robbins et a1. (1973) Authors condensation with liquid He condensation with liquid He pumping with Toepler pump condensation with liquid N2 syringe He pressurization sampling with syringe Transfer to chromatograph about 400 255 ± 45 -600 500-1400 70 ± 20 50 ± 25 NA NA Contamination (ppbv) -400 -40 NA -1100 Amount of ice (g) Table 2.

114:399-420. M. S. Schimel. 1989. Regional extrapolation of trace gas flux based on soils and ecosystems. O. S. ), Dahlem Konferenzen, Wiley, Chichester, pp 97-108. , AM. Yaglom. 1971. , vol. 1, MIT Press, London. , N. Roulet, R Knowles. 1990. Spatial and temporal variations of methane flux from subarctic/northern boreal fens. Global Biogeochem. Cycles, 4:29-46. P. Livingston. 1992. Methane Flux from tundra ecosystems in arctic Alaska: An assessment of local spatial variability. J. Geophys. , 97: 16,661-16,670.

Smith-Morrill. 1988. Tropospheric methane from an Amazonian floodplain lake. I. Geophys. , 93:1,564-1,570. P. Tathy, M. Labat, J. Servant, B. Cros. 1992. Sources and sinks of methane and carbon dioxide exchanges in mountain forest in equatorial Africa. I. Geophys. , 97:6,169-6,179. T. 1991. Sources and sinks of greenhouse gases in the soil-plant environment. Vegetatio, 91:73-86. L. 1972. A study of carbon dioxide and latent heat fluxes using the eddy correlation technique. D. dissertation, Cornell University, NY.

Download PDF sample

Rated 4.43 of 5 – based on 22 votes