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Title: Quantifying Climate Feedbacks from Abrupt Changes in High-Latitude Trace-Gas Emissions

Abstract

During the three-year project period, Purdue University has specifically accomplished the following: revised the existing Methane Dynamics Model (MDM) to consider the effects of changes of atmospheric pressure; applied the methane dynamics model (MDM) to Siberian region to demonstrate that ebullition estimates could increase previous estimates of regional terrestrial CH{sub 4} emissions 3- to 7-fold in Siberia; Conducted an analysis of the carbon balance of the Arctic Basin from 1997 to 2006 to show that terrestrial areas of the Arctic were a net source of 41.5 Tg CH{sub 4} yr{sup 1} that increased by 0.6 Tg CH{sub 4} yr{sup 1} during the decade of analysis, a magnitude that is comparable with an atmospheric inversion of CH{sub 4}; improved the quantification of CH{sub 4} fluxes in the Arctic with inversion methods; evaluated AIRS CH4 retrieval data with a transport and inversion model and surface flux and aircraft data; to better quantify methane emissions from wetlands, we extended the MDM within a biogeochemistry model, the Terrestrial Ecosystem Model (TEM), to include a large-scale hydrology model, the variable infiltration capacity (VIC) model; more recently, we developed a single box atmospheric chemistry model involving atmospheric methane (CH{sub 4}), carbon monoxide (CO) and radical hydroxylmore » (OH) to analyze atmospheric CH{sub 4} concentrations from 1984 to 2008.« less

Authors:
Publication Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1054888
Report Number(s):
DE-FG02-08ER64599
103306
DOE Contract Number:  
FG02-08ER64599
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Zhuang, Qianlai. Quantifying Climate Feedbacks from Abrupt Changes in High-Latitude Trace-Gas Emissions. United States: N. p., 2012. Web. doi:10.2172/1054888.
Zhuang, Qianlai. Quantifying Climate Feedbacks from Abrupt Changes in High-Latitude Trace-Gas Emissions. United States. doi:10.2172/1054888.
Zhuang, Qianlai. Fri . "Quantifying Climate Feedbacks from Abrupt Changes in High-Latitude Trace-Gas Emissions". United States. doi:10.2172/1054888. https://www.osti.gov/servlets/purl/1054888.
@article{osti_1054888,
title = {Quantifying Climate Feedbacks from Abrupt Changes in High-Latitude Trace-Gas Emissions},
author = {Zhuang, Qianlai},
abstractNote = {During the three-year project period, Purdue University has specifically accomplished the following: revised the existing Methane Dynamics Model (MDM) to consider the effects of changes of atmospheric pressure; applied the methane dynamics model (MDM) to Siberian region to demonstrate that ebullition estimates could increase previous estimates of regional terrestrial CH{sub 4} emissions 3- to 7-fold in Siberia; Conducted an analysis of the carbon balance of the Arctic Basin from 1997 to 2006 to show that terrestrial areas of the Arctic were a net source of 41.5 Tg CH{sub 4} yr{sup 1} that increased by 0.6 Tg CH{sub 4} yr{sup 1} during the decade of analysis, a magnitude that is comparable with an atmospheric inversion of CH{sub 4}; improved the quantification of CH{sub 4} fluxes in the Arctic with inversion methods; evaluated AIRS CH4 retrieval data with a transport and inversion model and surface flux and aircraft data; to better quantify methane emissions from wetlands, we extended the MDM within a biogeochemistry model, the Terrestrial Ecosystem Model (TEM), to include a large-scale hydrology model, the variable infiltration capacity (VIC) model; more recently, we developed a single box atmospheric chemistry model involving atmospheric methane (CH{sub 4}), carbon monoxide (CO) and radical hydroxyl (OH) to analyze atmospheric CH{sub 4} concentrations from 1984 to 2008.},
doi = {10.2172/1054888},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}