Inference of surface concentrations of nitrogen dioxide (NO2) in Colombia from tropospheric columns of the ozone measurement instrument (OMI)
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2014
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| _version_ | 1876468573922131968 |
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| author | JOHN FREDDY GRAJALES |
| author_facet | JOHN FREDDY GRAJALES |
| contents | Inference of surface concentrations of nitrogen dioxide (NO2) in Colombia from tropospheric columns of the ozone measurement instrument (OMI) JOHN FREDDY GRAJALES ASTRID BAQUERO-BERNAL Biología OMI GEOS Chem Colombia overestimation For the first time, maps of surface concentration of nitrogen dioxide (NO 2 ) are presented for the Colombian territory. NO 2 surface concentrations for the year 2007 are inferred based on two sources of tropospheric NO 2 column data: (1) a simulation using a three-dimensional global model (GEOS-Chem) and (2) measurements made by the ozone monitoring instrument (OMI) onboard the NASA Aura satellite. Results show monthly averages between 0.1 and 6 ppbv. We compare these inferred values to corrected ground measurements of NO 2 . We find correlation coefficients of up to 0.91 between the inferred data and the corrected observational data. A significant source of NO 2 is biomass burning, which can be diagnosed by data of fire radiative power (FRP) from the Monitoring of Atmospheric Composition and Climate (MACC) reanalysis. We find a close relationship between high values of inferred NO 2 surface concentrations and biomass burning for a large area which encompasses the departments of Caquetá, Meta, Guaviare, Vichada, and Putumayo. 2014 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56531042007 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.2 Vol.27 |
| format | Artículo científico |
| id | redalyc_56531042007 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Inference of surface concentrations of nitrogen dioxide (NO2) in Colombia from tropospheric columns of the ozone measurement instrument (OMI) JOHN FREDDY GRAJALES Biología OMI GEOS Chem Colombia overestimation Inference of surface concentrations of nitrogen dioxide (NO2) in Colombia from tropospheric columns of the ozone measurement instrument (OMI) JOHN FREDDY GRAJALES ASTRID BAQUERO-BERNAL Biología OMI GEOS Chem Colombia overestimation For the first time, maps of surface concentration of nitrogen dioxide (NO 2 ) are presented for the Colombian territory. NO 2 surface concentrations for the year 2007 are inferred based on two sources of tropospheric NO 2 column data: (1) a simulation using a three-dimensional global model (GEOS-Chem) and (2) measurements made by the ozone monitoring instrument (OMI) onboard the NASA Aura satellite. Results show monthly averages between 0.1 and 6 ppbv. We compare these inferred values to corrected ground measurements of NO 2 . We find correlation coefficients of up to 0.91 between the inferred data and the corrected observational data. A significant source of NO 2 is biomass burning, which can be diagnosed by data of fire radiative power (FRP) from the Monitoring of Atmospheric Composition and Climate (MACC) reanalysis. We find a close relationship between high values of inferred NO 2 surface concentrations and biomass burning for a large area which encompasses the departments of Caquetá, Meta, Guaviare, Vichada, and Putumayo. 2014 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56531042007 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.2 Vol.27 |
| title | Inference of surface concentrations of nitrogen dioxide (NO2) in Colombia from tropospheric columns of the ozone measurement instrument (OMI) |
| topic | Biología OMI GEOS Chem Colombia overestimation |
| url | https://www.redalyc.org/articulo.oa?id=56531042007 |