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DOI | 10.1175/JAS-D-19-0094.1 |
On the Diurnal Cycle of GPS-Derived Precipitable Water Vapor over Sumatra | |
Torri, Giuseppe1; Adams, David K.2; Wang, Huiqun3; Kuang, Zhiming4,5 | |
2019-11-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:11页码:3529-3552 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Mexico; England |
英文摘要 | Convective processes in the atmosphere over the Maritime Continent and their diurnal cycles have important repercussions for the circulations in the tropics and beyond. In this work, we present a new dataset of precipitable water vapor (PWV) obtained from the Sumatran GPS Array (SuGAr), a dense network of GPS stations principally for examining seismic and tectonic activity along the western coast of Sumatra and several offshore islands. The data provide an opportunity to examine the characteristics of convection over the area in greater detail than before. In particular, our results show that the diurnal cycle of PWV on Sumatra has a single late afternoon peak, while that offshore has both a midday and a nocturnal peak. The SuGAr data are in good agreement with GPS radio occultation data from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission, as well as with imaging spectrometer data from the Ozone Measuring Instrument (OMI). A comparison between SuGAr and the NASA Water Vapor Project (NVAP), however, shows significant differences, most likely due to discrepancies in the temporal and spatial resolutions. To further understand the diurnal cycle contained in the SuGAr data, we explore the impact of the Madden-Julian oscillation (MJO) on the diurnal cycle with the aid of the Weather Research and Forecasting (WRF) Model. Results show that the daily mean and the amplitude of the diurnal cycle appear smaller during the suppressed phase relative to the developing/active MJO phase. Furthermore, the evening/nighttime peaks of PWV offshore appear later during the suppressed phase of the MJO compared to the active phase. |
英文关键词 | Atmosphere Maritime Continent Madden-Julian oscillation Diurnal effects Global positioning systems (GPS) |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494455100001 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; MARITIME CONTINENT ; RADIO OCCULTATION ; DEEP CONVECTION ; SATELLITE-OBSERVATIONS ; SCALE INTERACTION ; RAINFALL ; MJO ; CIRCULATION ; MODEL |
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/225994 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; 2.Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City, DF, Mexico; 3.Smithsonian Astrophys Observ, Cambridge, England; 4.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 5.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Torri, Giuseppe,Adams, David K.,Wang, Huiqun,et al. On the Diurnal Cycle of GPS-Derived Precipitable Water Vapor over Sumatra[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(11):3529-3552. |
APA | Torri, Giuseppe,Adams, David K.,Wang, Huiqun,&Kuang, Zhiming.(2019).On the Diurnal Cycle of GPS-Derived Precipitable Water Vapor over Sumatra.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(11),3529-3552. |
MLA | Torri, Giuseppe,et al."On the Diurnal Cycle of GPS-Derived Precipitable Water Vapor over Sumatra".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.11(2019):3529-3552. |
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