Comparing Ship-Track Droplet Sizes Inferred fromTerraandAquaMODIS Data
In this study of ship tracks, Moderate Resolution Imaging Spectroradiometer (MODIS) measurements from late-morning (Terra) and early-afternoon (Aqua) Earth Observing System platforms are analyzed in five separate geographically distributed cases to compare estimates of the sizes (and their changes i...
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| Veröffentlicht in: | Journal of applied meteorology and climatology 2013-01, Vol.52 (1), p.230-241 |
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| container_title | Journal of applied meteorology and climatology |
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| creator | Kabatas, Burcu Menzel, W. Paul Bilgili, Ata Gumley, Liam E. |
| description | In this study of ship tracks, Moderate Resolution Imaging Spectroradiometer (MODIS) measurements from late-morning (Terra) and early-afternoon (Aqua) Earth Observing System platforms are analyzed in five separate geographically distributed cases to compare estimates of the sizes (and their changes in time) of droplets associated with ship exhaust. Ship tracks are readily detected in near-infrared imagery as bright features, especially in 2.13-μm observations. TheTerra“MOD06” and Aqua “MYD06” cloud products are used to determine the effective radius of the ship-track droplets; droplet age (time in the atmosphere) is estimated as a function of the distance from the ship.TerraandAquaMODIS estimates of droplet sizes in ship-track plumes are found to be in agreement, with a correlation greater than 0.90; for the cases studied, droplet sizes in the ship plumes are between 6 and 18μm. Moreover, the droplets’ size growth rates inferred from the length of the ship track were found to average between 0.5 and 1.0μm h−1. |
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Paul ; Bilgili, Ata ; Gumley, Liam E.</creator><creatorcontrib>Kabatas, Burcu ; Menzel, W. Paul ; Bilgili, Ata ; Gumley, Liam E.</creatorcontrib><description>In this study of ship tracks, Moderate Resolution Imaging Spectroradiometer (MODIS) measurements from late-morning (Terra) and early-afternoon (Aqua) Earth Observing System platforms are analyzed in five separate geographically distributed cases to compare estimates of the sizes (and their changes in time) of droplets associated with ship exhaust. Ship tracks are readily detected in near-infrared imagery as bright features, especially in 2.13-μm observations. TheTerra“MOD06” and Aqua “MYD06” cloud products are used to determine the effective radius of the ship-track droplets; droplet age (time in the atmosphere) is estimated as a function of the distance from the ship.TerraandAquaMODIS estimates of droplet sizes in ship-track plumes are found to be in agreement, with a correlation greater than 0.90; for the cases studied, droplet sizes in the ship plumes are between 6 and 18μm. Moreover, the droplets’ size growth rates inferred from the length of the ship track were found to average between 0.5 and 1.0μm h−1.</description><identifier>ISSN: 1558-8424</identifier><identifier>EISSN: 1558-8432</identifier><language>eng</language><publisher>American Meteorological Society</publisher><subject>Clouds ; Coasts ; Infrared reflection ; Meteorology ; Optical reflection ; Pixels ; Plumes ; Reflectance ; Ships ; Wind velocity</subject><ispartof>Journal of applied meteorology and climatology, 2013-01, Vol.52 (1), p.230-241</ispartof><rights>2013 American Meteorological Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26175294$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26175294$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,57992,58225</link.rule.ids></links><search><creatorcontrib>Kabatas, Burcu</creatorcontrib><creatorcontrib>Menzel, W. Paul</creatorcontrib><creatorcontrib>Bilgili, Ata</creatorcontrib><creatorcontrib>Gumley, Liam E.</creatorcontrib><title>Comparing Ship-Track Droplet Sizes Inferred fromTerraandAquaMODIS Data</title><title>Journal of applied meteorology and climatology</title><description>In this study of ship tracks, Moderate Resolution Imaging Spectroradiometer (MODIS) measurements from late-morning (Terra) and early-afternoon (Aqua) Earth Observing System platforms are analyzed in five separate geographically distributed cases to compare estimates of the sizes (and their changes in time) of droplets associated with ship exhaust. Ship tracks are readily detected in near-infrared imagery as bright features, especially in 2.13-μm observations. TheTerra“MOD06” and Aqua “MYD06” cloud products are used to determine the effective radius of the ship-track droplets; droplet age (time in the atmosphere) is estimated as a function of the distance from the ship.TerraandAquaMODIS estimates of droplet sizes in ship-track plumes are found to be in agreement, with a correlation greater than 0.90; for the cases studied, droplet sizes in the ship plumes are between 6 and 18μm. Moreover, the droplets’ size growth rates inferred from the length of the ship track were found to average between 0.5 and 1.0μm h−1.</description><subject>Clouds</subject><subject>Coasts</subject><subject>Infrared reflection</subject><subject>Meteorology</subject><subject>Optical reflection</subject><subject>Pixels</subject><subject>Plumes</subject><subject>Reflectance</subject><subject>Ships</subject><subject>Wind velocity</subject><issn>1558-8424</issn><issn>1558-8432</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNpjYuA0NDW10LUwMTZigbONTDgYuIqLswwMTEzMzU05Gdyc83MLEosy89IVgjMyC3RDihKTsxVcivILclJLFIIzq1KLFTzz0lKLilJTFNKK8nNDgMzExLwUx8LSRF9_F89gBZfEkkQeBta0xJziVF4ozc0g6-Ya4uyhm1Vckl8UX1CUmZtYVBlvZGZobmpkaWJMSB4AqbE3tQ</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Kabatas, Burcu</creator><creator>Menzel, W. 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Paul</creatorcontrib><creatorcontrib>Bilgili, Ata</creatorcontrib><creatorcontrib>Gumley, Liam E.</creatorcontrib><jtitle>Journal of applied meteorology and climatology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kabatas, Burcu</au><au>Menzel, W. Paul</au><au>Bilgili, Ata</au><au>Gumley, Liam E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparing Ship-Track Droplet Sizes Inferred fromTerraandAquaMODIS Data</atitle><jtitle>Journal of applied meteorology and climatology</jtitle><date>2013-01-01</date><risdate>2013</risdate><volume>52</volume><issue>1</issue><spage>230</spage><epage>241</epage><pages>230-241</pages><issn>1558-8424</issn><eissn>1558-8432</eissn><abstract>In this study of ship tracks, Moderate Resolution Imaging Spectroradiometer (MODIS) measurements from late-morning (Terra) and early-afternoon (Aqua) Earth Observing System platforms are analyzed in five separate geographically distributed cases to compare estimates of the sizes (and their changes in time) of droplets associated with ship exhaust. Ship tracks are readily detected in near-infrared imagery as bright features, especially in 2.13-μm observations. TheTerra“MOD06” and Aqua “MYD06” cloud products are used to determine the effective radius of the ship-track droplets; droplet age (time in the atmosphere) is estimated as a function of the distance from the ship.TerraandAquaMODIS estimates of droplet sizes in ship-track plumes are found to be in agreement, with a correlation greater than 0.90; for the cases studied, droplet sizes in the ship plumes are between 6 and 18μm. Moreover, the droplets’ size growth rates inferred from the length of the ship track were found to average between 0.5 and 1.0μm h−1.</abstract><pub>American Meteorological Society</pub></addata></record> |
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| ispartof | Journal of applied meteorology and climatology, 2013-01, Vol.52 (1), p.230-241 |
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| source | Jstor Complete Legacy; American Meteorological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Clouds Coasts Infrared reflection Meteorology Optical reflection Pixels Plumes Reflectance Ships Wind velocity |
| title | Comparing Ship-Track Droplet Sizes Inferred fromTerraandAquaMODIS Data |
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