Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.07.019 |
ITCZ trend analysis via Geodesic P-spline smoothing of the AIRWAVE TCWV and cloud frequency datasets | |
Castelli, Elisa1; Papandrea, Enzo2; Valeri, Massimo1,3; Greco, Fedele Pasquale4; Ventrucci, Massimo4; Casadio, Stefano2; Dinelli, Bianca Maria1 | |
2018-12-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 214页码:228-238 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | The Inter Tropical Convergence Zone (ITCZ) is the region of the Earth's atmosphere where the trade winds converge. This region is characterized by rising air, strong convection, clouds and heavy precipitation and it is tightly related to changes in climate patterns on a global scale. For these reasons assessing the ITCZ migrations is of extreme importance for climate monitoring. This can be achieved through the use of satellite data of different kind. In the last decades several quantities have been used as proxies for this purpose, e.g. infrared radiance measured at the top of atmosphere (TOA), precipitation datasets or vertical and horizontal wind components. In this work the ITCZ position is determined and its time evolution is analysed using the Total Column Water Vapour (TCWV) data, retrieved using the Advanced Infra-Red Water Vapour Estimator algorithm (AIRWAVE). AIRWAVE was developed for the retrieval of the TCWV from the Along Track Scanning Radiometer (ATSR) instrument series, operational from 1991 to 2012. It allows the TCWV retrieval from infra-red channels at 11 and 12 gm exploiting the ATSR nadir and forward viewing geometries, for day/night and cloud-free sea surface scenarios. The information on cloud coverage from ATSRs is used as correlative information in order to expand the ITCZ analysis to land scenes. The TCWV and cloud frequency datasets are analysed with a Geodesic P-spline efficient spatial smoothing method specifically developed to extract information from large datasets. The posterior distribution of the model is considered for identification of the ITCZ both over sea and land with associated uncertainty quantification. The resulting AIRWAVE/cloud frequency monthly fields are analysed to detect trends in the ITCZ latitudinal displacement over the 20 years of the ATSR family lifetime. Results indicate that no significant trends can be detected in the 1991-2012 time period. |
英文关键词 | ITCZ TCWV AIRWAVE Trends |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445990400018 |
WOS关键词 | INTERTROPICAL CONVERGENCE ZONE ; HADLEY CIRCULATION ; POLEWARD EXPANSION ; CLIMATOLOGY ; PRECIPITATION ; VARIABILITY ; POSITION ; TRMM ; GPCP |
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/15207 |
专题 | 地球科学 |
作者单位 | 1.CNR, ISAC, Via Gobetti 101, I-40129 Bologna, Italy; 2.Serco Spa, Via Sciadonna 24-26, I-00044 Frascati, Italy; 3.Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy; 4.Univ Bologna, Dipartimento Sci Stat Paolo Fortunati, Via Belle Arti 41, I-40126 Bologna, Italy |
推荐引用方式 GB/T 7714 | Castelli, Elisa,Papandrea, Enzo,Valeri, Massimo,et al. ITCZ trend analysis via Geodesic P-spline smoothing of the AIRWAVE TCWV and cloud frequency datasets[J]. ATMOSPHERIC RESEARCH,2018,214:228-238. |
APA | Castelli, Elisa.,Papandrea, Enzo.,Valeri, Massimo.,Greco, Fedele Pasquale.,Ventrucci, Massimo.,...&Dinelli, Bianca Maria.(2018).ITCZ trend analysis via Geodesic P-spline smoothing of the AIRWAVE TCWV and cloud frequency datasets.ATMOSPHERIC RESEARCH,214,228-238. |
MLA | Castelli, Elisa,et al."ITCZ trend analysis via Geodesic P-spline smoothing of the AIRWAVE TCWV and cloud frequency datasets".ATMOSPHERIC RESEARCH 214(2018):228-238. |
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