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Sökning: onr:"swepub:oai:DiVA.org:su-189012" > Properties of Arcti...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004038naa a2200397 4500
001oai:DiVA.org:su-189012
003SwePub
008210115s2020 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1890122 URI
0247 a https://doi.org/10.5194/acp-20-14983-20202 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Achtert, Peggy4 aut
2451 0a Properties of Arctic liquid and mixed-phase clouds from shipborne Cloudnet observations during ACSE 2014
264 c 2020-12-04
264 1b Copernicus GmbH,c 2020
338 a print2 rdacarrier
520 a This study presents Cloudnet retrievals of Arctic clouds from measurements conducted during a 3-month research expedition along the Siberian shelf during summer and autumn 2014. During autumn, we find a strong reduction in the occurrence of liquid clouds and an increase for both mixed-phase and ice clouds at low levels compared to summer. About 80 % of all liquid clouds observed during the research cruise show a liquid water path below the infrared black body limit of approximately 50 g m(-2). The majority of mixed-phase and ice clouds had an ice water path below 20 g m(-2). Cloud properties are analysed with respect to cloud-top temperature and boundary layer structure. Changes in these parameters have little effect on the geometric thickness of liquid clouds while mixed-phase clouds during warm-air advection events are generally thinner than when such events were absent. Cloud-top temperatures are very similar for all mixed-phase clouds. However, more cases of lower cloudtop temperature were observed in the absence of warm-air advection. Profiles of liquid and ice water content are normalized with respect to cloud base and height. For liquid water clouds, the liquid water content profile reveals a strong increase with height with a maximum within the upper quarter of the clouds followed by a sharp decrease towards cloud top. Liquid water content is lowest for clouds observed below an inversion during warm-air advection events. Most mixedphase clouds show a liquid water content profile with a very similar shape to that of liquid clouds but with lower maximum values during events with warm air above the planetary boundary layer. The normalized ice water content profiles in mixed-phase clouds look different from those of liquid water content. They show a wider range in maximum values with the lowest ice water content for clouds below an inversion and the highest values for clouds above or extending through an inversion. The ice water content profile generally peaks at a height below the peak in the liquid water content profile - usually in the centre of the cloud, sometimes closer to cloud base, likely due to particle sublimation as the crystals fall through the cloud.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
7001 a O'Connor, Ewan J.4 aut
7001 a Brooks, Ian M.4 aut
7001 a Sotiropoulou, Georgiau Stockholms universitet,Meteorologiska institutionen (MISU)4 aut0 (Swepub:su)geso4462
7001 a Shupe, Matthew D.4 aut
7001 a Pospichal, Bernhard4 aut
7001 a Brooks, Barbara J.4 aut
7001 a Tjernström, Michaelu Stockholms universitet,Meteorologiska institutionen (MISU)4 aut0 (Swepub:su)tjern
7102 a Stockholms universitetb Meteorologiska institutionen (MISU)4 org
7730 t Atmospheric Chemistry And Physicsd : Copernicus GmbHg 20:23, s. 14983-15002q 20:23<14983-15002x 1680-7316x 1680-7324
8564 u https://doi.org/10.5194/acp-20-14983-2020y Fulltext
8564 u https://acp.copernicus.org/articles/20/14983/2020/acp-20-14983-2020.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-189012
8564 8u https://doi.org/10.5194/acp-20-14983-2020

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