21 research outputs found
Capabilities of IRS-MTG to sound ozone, carbon monoxyde and methane using ESA pre-phase A specifications
pp. 1-56info:eu-repo/semantics/publishe
Ozone and CO observation from future EUMETSAT missions: IASI-METOP and IRS-MTG
info:eu-repo/semantics/nonPublishe
Long range transport of pollution from space: a multiplatform (MOPITT, TES, ACE) analysis of CO observations
info:eu-repo/semantics/nonPublishe
Atmospheric ammonia monitored by IASI
info:eu-repo/semantics/nonPublishe
Analysis of ozone and nitric acid for the ARCTAS field campaign using aircraft, satellite observations and MOZART-4 model simulations: source attribution and variability of Arctic pollution
info:eu-repo/semantics/nonPublishe
Corrigendum to "Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012-00001 and 30013-00001 bands" [J. Quant. Spectrosc. Radiat. Transf., 111 (9) (2010) 1065-1079] doi: 10.1016/j.jqsrt.2010.01.003
Peer reviewed: YesNRC publication: Ye
Corrigendum to "Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012-00001 and 30013-00001 bands" [J. Quant. Spectrosc. Radiat. Transf. 111 (9) (2010) 1065-1079] doi: 10.1016/j.jqsrt.2010.01.003
SCOPUS: er.jinfo:eu-repo/semantics/publishe
Ammonia emissions from biomass burning: comparison between satellite-derived emissions and bottom-up inventories
International audienc
Ammonia emissions in tropical biomass burning regions: Comparison between satellite-derived emissions and bottom-up fire inventories
International audienceVegetation fires emit large amounts of nitrogen compounds in the atmosphere, including ammonia (NH3). These emissions are still subject to large uncertainties. In this study, we analyze time series of monthly NH3 total columns (molec cm-2) from the IASI sounder on board MetOp-A satellite and their relation with MODIS fire radiative power (MW) measurements. We derive monthly NH3 emissions estimates for four regions accounting for a major part of the total area affected by fires (two in Africa, one in central South America and one in Southeast Asia), using a simplified box model, and we compare them to the emissions from both the GFEDv3.1 and GFASv1.0 biomass burning emission inventories. In order to strengthen the analysis, we perform a similar comparison for carbon monoxide (CO), also measured by IASI and for which the emission factors used in the inventories to convert biomass burned to trace gas emissions are thought to be more reliable. In general, a good correspondence between NH3 and CO columns and the FRP is found, especially for regions in central South America with correlation coefficients of 0.82 and 0.66, respectively. The comparison with the two biomass burning emission inventories GFASv1.0 and GFEDv3.1 shows good agreements, particularly in the time of the maximum of emissions for the central South America region and in the magnitude for the region of Africa south of the equator. We find evidence of significant non-pyrogenic emissions for the regions of Africa north of the equator (for NH3) and Southeast Asia (for NH3 and CO). On a yearly basis, total emissions calculated from IASI measurements for the four regions reproduce fairly well the interannual variability from the GFEDv3.1 and GFASv1.0 emissions inventories for NH3 but show values about 1.5-2 times higher than emissions given by the two biomass burning emission inventories, even when assuming a fairly long lifetime of 36 hours for that species
Temporal variations of atmospheric ammonia revealed from space: from long-term global trends to weekly cycle and intraday variability
info:eu-repo/semantics/nonPublishe