Diurnal variations of midlatitude NLC parameters observed by daylight-capable lidar and their relation to ambient parameters
Noctilucent Clouds (NLCs) are an important phenomenon of the summer mesopause region. While relatively common in high latitudes, NLCs are sparse (≤10% occurrence rate) below 60°latitude. We present the first study of diurnal variations of midlatitude NLCs based on lidar observations with full diurna...
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| Veröffentlicht in: | Geophysical research letters 2013-12, Vol.40 (24), p.6390-6394 |
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| creator | Gerding, M. Kopp, M. Hoffmann, P. Höffner, J. Lübken, F.-J. |
| description | Noctilucent Clouds (NLCs) are an important phenomenon of the summer mesopause region. While relatively common in high latitudes, NLCs are sparse (≤10% occurrence rate) below 60°latitude. We present the first study of diurnal variations of midlatitude NLCs based on lidar observations with full diurnal coverage at Kühlungsborn since 2010 independent from solar elevation. Overall, ∼100h of NLCs with a backscatter coefficient of βmax,532nm>0.5·10−10m−1sr−1are observed within ∼1800h. Occurrence rates decrease regularly from 12% at 5local solar time (LST) to ∼2% at 19LST. The mean NLC brightness varies between ∼1 and ∼3·10−10m−1sr−1with maxima at 4 and 18LST. The simultaneously observed temperatures show a systematic (tidal) variation, but we do not find a direct relation to NLC rates. Comparing NLCs and ambient winds, we find strong indications for the meridional wind (advection) being the main driver for NLC occurrence above our site.
Key Points
NLC occurrence highest in early morning, lowest in early evening
NLC occurrence independent from temperature tide
NLC occurrence depends on meridional wind tide (advection) |
| doi_str_mv | 10.1002/2013GL057955 |
| format | Article |
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Key Points
NLC occurrence highest in early morning, lowest in early evening
NLC occurrence independent from temperature tide
NLC occurrence depends on meridional wind tide (advection)</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2013GL057955</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Advection ; Backscattering ; Diurnal variations ; Earth sciences ; Earth, ocean, space ; Elevation ; Evening ; Exact sciences and technology ; Latitude ; Lidar ; mesospheric tides ; Meteorology ; Morning ; noctilucent clouds ; polar mesospheric clouds ; Tides ; Wind</subject><ispartof>Geophysical research letters, 2013-12, Vol.40 (24), p.6390-6394</ispartof><rights>2013. American Geophysical Union. All Rights Reserved.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4455-5964910bc4018dcbfaecea5f277332a3a9dfcbfe3f4d8c88c07a9ce26bdb77b43</citedby><cites>FETCH-LOGICAL-c4455-5964910bc4018dcbfaecea5f277332a3a9dfcbfe3f4d8c88c07a9ce26bdb77b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2013GL057955$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2013GL057955$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,11493,27901,27902,45550,45551,46384,46443,46808,46867</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28195928$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gerding, M.</creatorcontrib><creatorcontrib>Kopp, M.</creatorcontrib><creatorcontrib>Hoffmann, P.</creatorcontrib><creatorcontrib>Höffner, J.</creatorcontrib><creatorcontrib>Lübken, F.-J.</creatorcontrib><title>Diurnal variations of midlatitude NLC parameters observed by daylight-capable lidar and their relation to ambient parameters</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Noctilucent Clouds (NLCs) are an important phenomenon of the summer mesopause region. While relatively common in high latitudes, NLCs are sparse (≤10% occurrence rate) below 60°latitude. We present the first study of diurnal variations of midlatitude NLCs based on lidar observations with full diurnal coverage at Kühlungsborn since 2010 independent from solar elevation. Overall, ∼100h of NLCs with a backscatter coefficient of βmax,532nm>0.5·10−10m−1sr−1are observed within ∼1800h. Occurrence rates decrease regularly from 12% at 5local solar time (LST) to ∼2% at 19LST. The mean NLC brightness varies between ∼1 and ∼3·10−10m−1sr−1with maxima at 4 and 18LST. The simultaneously observed temperatures show a systematic (tidal) variation, but we do not find a direct relation to NLC rates. Comparing NLCs and ambient winds, we find strong indications for the meridional wind (advection) being the main driver for NLC occurrence above our site.
Key Points
NLC occurrence highest in early morning, lowest in early evening
NLC occurrence independent from temperature tide
NLC occurrence depends on meridional wind tide (advection)</description><subject>Advection</subject><subject>Backscattering</subject><subject>Diurnal variations</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Elevation</subject><subject>Evening</subject><subject>Exact sciences and technology</subject><subject>Latitude</subject><subject>Lidar</subject><subject>mesospheric tides</subject><subject>Meteorology</subject><subject>Morning</subject><subject>noctilucent clouds</subject><subject>polar mesospheric clouds</subject><subject>Tides</subject><subject>Wind</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kU2LFDEQhoMoOI7e_AEBETzYWvnqdB911FFsVhz8OIbqJO1mzXTPJj2rA_54szvLsnjwlErqeR9IFSGPGbxgAPwlBybWHSjdKnWHLFgrZdUA6LtkAdCWmuv6PnmQ8xkACBBsQf68Cfs0YqQXmALOYRoznQa6DS6W27x3np50K7rDhFs_-1S6ffbpwjvaH6jDQww_TufK4g776GkMDhPF0dH51IdEk49XUjpPFLd98ON8y_WQ3BswZv_o-lySr-_eflm9r7pP6w-rV11lpVSqUm0tWwa9lcAaZ_sBvfWoBq61EBwFtm4or14M0jW2aSxobK3nde96rXspluTZ0btL0_ne59lsQ7Y-Rhz9tM-GKaiFVqyMb0me_IOeTVcDKlQtOUgNdV2o50fKpinn5AezS2GL6WAYmMtVmNurKPjTaylmi3FIONqQbzK8Ya1qeVM4fuR-hegP_3Wa9aZTjDWX8uoYCnn2v29CmH6aWpdfme8na6PYZrP5_O21-Sj-ApSfqCw</recordid><startdate>20131228</startdate><enddate>20131228</enddate><creator>Gerding, M.</creator><creator>Kopp, M.</creator><creator>Hoffmann, P.</creator><creator>Höffner, J.</creator><creator>Lübken, F.-J.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope></search><sort><creationdate>20131228</creationdate><title>Diurnal variations of midlatitude NLC parameters observed by daylight-capable lidar and their relation to ambient parameters</title><author>Gerding, M. ; Kopp, M. ; Hoffmann, P. ; Höffner, J. ; Lübken, F.-J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4455-5964910bc4018dcbfaecea5f277332a3a9dfcbfe3f4d8c88c07a9ce26bdb77b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Advection</topic><topic>Backscattering</topic><topic>Diurnal variations</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Elevation</topic><topic>Evening</topic><topic>Exact sciences and technology</topic><topic>Latitude</topic><topic>Lidar</topic><topic>mesospheric tides</topic><topic>Meteorology</topic><topic>Morning</topic><topic>noctilucent clouds</topic><topic>polar mesospheric clouds</topic><topic>Tides</topic><topic>Wind</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gerding, M.</creatorcontrib><creatorcontrib>Kopp, M.</creatorcontrib><creatorcontrib>Hoffmann, P.</creatorcontrib><creatorcontrib>Höffner, J.</creatorcontrib><creatorcontrib>Lübken, F.-J.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gerding, M.</au><au>Kopp, M.</au><au>Hoffmann, P.</au><au>Höffner, J.</au><au>Lübken, F.-J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Diurnal variations of midlatitude NLC parameters observed by daylight-capable lidar and their relation to ambient parameters</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2013-12-28</date><risdate>2013</risdate><volume>40</volume><issue>24</issue><spage>6390</spage><epage>6394</epage><pages>6390-6394</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Noctilucent Clouds (NLCs) are an important phenomenon of the summer mesopause region. While relatively common in high latitudes, NLCs are sparse (≤10% occurrence rate) below 60°latitude. We present the first study of diurnal variations of midlatitude NLCs based on lidar observations with full diurnal coverage at Kühlungsborn since 2010 independent from solar elevation. Overall, ∼100h of NLCs with a backscatter coefficient of βmax,532nm>0.5·10−10m−1sr−1are observed within ∼1800h. Occurrence rates decrease regularly from 12% at 5local solar time (LST) to ∼2% at 19LST. The mean NLC brightness varies between ∼1 and ∼3·10−10m−1sr−1with maxima at 4 and 18LST. The simultaneously observed temperatures show a systematic (tidal) variation, but we do not find a direct relation to NLC rates. Comparing NLCs and ambient winds, we find strong indications for the meridional wind (advection) being the main driver for NLC occurrence above our site.
Key Points
NLC occurrence highest in early morning, lowest in early evening
NLC occurrence independent from temperature tide
NLC occurrence depends on meridional wind tide (advection)</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2013GL057955</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| source | Wiley-Blackwell AGU Digital Library; Wiley Online Library Journals Frontfile Complete; Wiley Online Library Free Content; EZB-FREE-00999 freely available EZB journals |
| subjects | Advection Backscattering Diurnal variations Earth sciences Earth, ocean, space Elevation Evening Exact sciences and technology Latitude Lidar mesospheric tides Meteorology Morning noctilucent clouds polar mesospheric clouds Tides Wind |
| title | Diurnal variations of midlatitude NLC parameters observed by daylight-capable lidar and their relation to ambient parameters |
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