Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029802 |
Year-Round In Situ Measurements of Arctic Low-Level Clouds: Microphysical Properties and Their Relationships With Aerosols | |
Koike, M.1; Ukita, J.2; Strom, J.3; Tunved, P.3; Shiobara, M.4; Vitale, V.5; Lupi, A.5; Baumgardner, D.6; Ritter, C.7; Hermansen, O.8; Yamada, K.4; Pedersen, C. A.9 | |
2019-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:3页码:1798-1822 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Sweden; Italy; USA; Germany; Norway |
英文摘要 | Two years of continuous in situ measurements of Arctic low-level clouds have been made at the Mount Zeppelin Observatory (78 degrees 56N, 11 degrees 53E), in Ny-angstrom lesund, Spitsbergen. The monthly median value of the cloud particle number concentration (N-c) showed a clear seasonal variation: Its maximum appeared in May-July (658cm(-3)), and it remained low between October and March (87cm(-3)). At temperatures warmer than 0 degrees C, a clear correlation was found between the hourly N-c values and the number concentrations of aerosols with dry diameters larger than 70nm (N-70), which are proxies for cloud condensation nuclei (CCN). When clouds were detected at temperatures colder than 0 degrees C, some of the data followed the summertime N-c to N-70 relationship, while other data showed systematically lower N-c values. The lidar-derived depolarization ratios suggested that the former (CCN-controlled) and latter (CCN-uncontrolled) data generally corresponded to clouds consisting of supercooled water droplets and those containing ice particles, respectively. The CCN-controlled data persistently appeared throughout the year at Zeppelin. The aerosol-cloud interaction index (ACI=dlnN(c)/(3dlnN(70))) for the CCN-controlled data showed high sensitivities to aerosols both in the summer (clean air) and winter-spring (Arctic haze) seasons (0.220.03 and 0.250.02, respectively). The air parcel model calculations generally reproduced these values. The threshold diameters of aerosol activation (D-act), which account for the N-c of the CCN-controlled data, were as low as 30-50nm when N-70 was less than 30cm(-3), suggesting that new particle formation can affect Arctic cloud microphysics. |
英文关键词 | Arctic cloud aerosol climate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000459377000035 |
WOS关键词 | NY-ALESUND ; SIZE DISTRIBUTIONS ; LIQUID CLOUDS ; CHEMICAL-COMPOSITION ; ZEPPELIN MOUNTAIN ; SVALBARD ; TRANSPORT ; PRECIPITATION ; AMPLIFICATION ; SENSITIVITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32571 |
专题 | 气候变化 |
作者单位 | 1.Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Tokyo, Japan; 2.Niigata Univ, Fac Sci, Niigata, Japan; 3.Stockholm Univ, Dept Environm Sci & Analyt Chem, Stockholm, Sweden; 4.Natl Inst Polar Res, Tokyo, Japan; 5.Italian Natl Res Council CNR, ISAC, Bologna, Italy; 6.Droplet Measurement Technol, Longmont, CO USA; 7.Alfred Wegener Inst, Potsdam, Germany; 8.Norwegian Inst Air Res NILU, Oslo, Norway; 9.Norwegian Polar Res Inst, Tromso, Norway |
推荐引用方式 GB/T 7714 | Koike, M.,Ukita, J.,Strom, J.,et al. Year-Round In Situ Measurements of Arctic Low-Level Clouds: Microphysical Properties and Their Relationships With Aerosols[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(3):1798-1822. |
APA | Koike, M..,Ukita, J..,Strom, J..,Tunved, P..,Shiobara, M..,...&Pedersen, C. A..(2019).Year-Round In Situ Measurements of Arctic Low-Level Clouds: Microphysical Properties and Their Relationships With Aerosols.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(3),1798-1822. |
MLA | Koike, M.,et al."Year-Round In Situ Measurements of Arctic Low-Level Clouds: Microphysical Properties and Their Relationships With Aerosols".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.3(2019):1798-1822. |
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