Dispersion of Smoke Plumes over South America
Satellite and reanalysis products are used to study the atmospheric environment, aerosols, and trace gases in smoke plumes over South America in the period 2000–18. Climatic conditions and fire density maps provide context to link biomass burning across the southern Amazon region (5°–15°S, 50°–70°W)...
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| Veröffentlicht in: | Earth interactions 2021-03, Vol.25 (1), p.1-14 |
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| creator | Jury, Mark R. Gaviria Pabón, América R. |
| description | Satellite and reanalysis products are used to study the atmospheric environment, aerosols, and trace gases in smoke plumes over South America in the period 2000–18. Climatic conditions and fire density maps provide context to link biomass burning across the southern Amazon region (5°–15°S, 50°–70°W) to thick near-surface plumes of trace gases and fine aerosols. Intraseasonal weather patterns that underpin greater fire emissions in the dry season (July–October) are exacerbated by high pressure over a cool eastern Pacific Ocean, for example in September 2007. Smoke-plume dispersion simulated with HYSPLIT reveals a slowing of westward transport between sources in eastern Brazil and the Andes Mountains. During cases of thick smoke plumes over southern Amazon, an upper ridge and sinking motions confine trace gases and fine aerosols below 4 km. Long-term warming, which tends to coincide with the zone of biomass burning, is +0.03°C yr
−1
in the air and +0.1°C yr
−1
at the land surface. Our study suggests that weather conditions promoting fire emissions also tend to limit dispersion. |
| doi_str_mv | 10.1175/EI-D-20-0004.1 |
| format | Article |
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−1
in the air and +0.1°C yr
−1
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−1
in the air and +0.1°C yr
−1
at the land surface. Our study suggests that weather conditions promoting fire emissions also tend to limit dispersion.</description><subject>Aerosols</subject><subject>Algorithms</subject><subject>Biomass</subject><subject>Biomass burning</subject><subject>Burning</subject><subject>Carbon monoxide</subject><subject>Climatic conditions</subject><subject>Data assimilation</subject><subject>Dispersion</subject><subject>Dry season</subject><subject>Emissions</subject><subject>Fires</subject><subject>Gases</subject><subject>Heat</subject><subject>High pressure</subject><subject>Humidity</subject><subject>Mountains</subject><subject>Nitrogen dioxide</subject><subject>Plume dispersion</subject><subject>Plumes</subject><subject>Radiometers</subject><subject>Seasons</subject><subject>Smoke</subject><subject>Smoke plumes</subject><subject>Trace gases</subject><subject>Trends</subject><subject>Vegetation</subject><subject>Weather</subject><subject>Weather conditions</subject><subject>Weather patterns</subject><subject>Wind</subject><issn>1087-3562</issn><issn>1087-3562</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNpNkMFLwzAYxYMoOKdXzwXPmd-XpEl7HFudg4HCdg9p9hU716Umq-B_78Y8eHrv8OM9-DH2iDBBNPlzteRzLoADgJrgFRshFIbLXIvrf_2W3aW0A0BRaj1ifN6mnmJqwyELTbbuwidl7_uho5SFb4rZOgzHj2zaUWy9u2c3jdsnevjLMdu8VJvZK1-9LZaz6Yp7CebIBWlR1qWp620tROGoIChrg2Upt5Kcq1EYNEroQnk0Dr3WQjmlFDW-IS_H7Oky28fwNVA62l0Y4uH0aEWOiErJHE7U5EL5GFKK1Ng-tp2LPxbBno3YamnnVoA9G7EofwENdlHl</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Jury, Mark R.</creator><creator>Gaviria Pabón, América R.</creator><general>American Meteorological Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2O</scope><scope>M2P</scope><scope>MBDVC</scope><scope>PADUT</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0002-6871-403X</orcidid></search><sort><creationdate>20210301</creationdate><title>Dispersion of Smoke Plumes over South America</title><author>Jury, Mark R. ; 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Climatic conditions and fire density maps provide context to link biomass burning across the southern Amazon region (5°–15°S, 50°–70°W) to thick near-surface plumes of trace gases and fine aerosols. Intraseasonal weather patterns that underpin greater fire emissions in the dry season (July–October) are exacerbated by high pressure over a cool eastern Pacific Ocean, for example in September 2007. Smoke-plume dispersion simulated with HYSPLIT reveals a slowing of westward transport between sources in eastern Brazil and the Andes Mountains. During cases of thick smoke plumes over southern Amazon, an upper ridge and sinking motions confine trace gases and fine aerosols below 4 km. Long-term warming, which tends to coincide with the zone of biomass burning, is +0.03°C yr
−1
in the air and +0.1°C yr
−1
at the land surface. Our study suggests that weather conditions promoting fire emissions also tend to limit dispersion.</abstract><cop>Washington</cop><pub>American Meteorological Society</pub><doi>10.1175/EI-D-20-0004.1</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-6871-403X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aerosols Algorithms Biomass Biomass burning Burning Carbon monoxide Climatic conditions Data assimilation Dispersion Dry season Emissions Fires Gases Heat High pressure Humidity Mountains Nitrogen dioxide Plume dispersion Plumes Radiometers Seasons Smoke Smoke plumes Trace gases Trends Vegetation Weather Weather conditions Weather patterns Wind |
| title | Dispersion of Smoke Plumes over South America |
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