DOI: 10.1016/j.atmosres.2018.06.010
Scopus记录号: 2-s2.0-85049051471
论文题名: Performances of GPM satellite precipitation over the two major Mediterranean islands
作者: Caracciolo D. ; Francipane A. ; Viola F. ; Noto L.V. ; Deidda R.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 213 起始页码: 309
结束页码: 322
语种: 英语
英文关键词: GPM
; IMERG
; Mediterranean islands
; Rainfall
; Satellite
Scopus关键词: Coastal zones
; Landforms
; Rain
; Global precipitation measurements
; IMERG
; Mediterranean islands
; Satellite precipitation
; Satellite precipitation products
; Satellite retrieval
; Temporal aggregation
; Temporal resolution
; Satellites
英文摘要: This study aims to assess the reliability of satellite-precipitation products from the Global Precipitation Measurements (GPM) mission in regions with complex landscape morphology. Our analysis is carried out in the European mid-latitude area, namely on the two major islands of Mediterranean Sea, i.e. Sardinia and Sicily (Italy). Both islands experience precipitation originating from the interaction of steep orography on the coasts with winds carrying humid air masses from the Mediterranean Sea. The GPM post real-time IMERG (Integrated Multi-satellitE Retrievals from Global Precipitation Measurement) “Final” run product at 0.1° spatial resolution and half-hour temporal resolution have been selected for the two-year 2015–2016 period. Evaluation and comparison of the selected product, with reference to raingauge network data, are performed at hourly and daily time scales using statistical and graphical tools. The influences of morphology and land-sea coastal area transition on the reliability of the GPM product have been analysed. Confirming previous studies, results showed that GPM satellite data slightly overestimate rainfall over the study areas, but they are well correlated with the interpolated raingauge data. Metrics based on occurrences above a given threshold and on total volume above the same threshold were applied and revealed better performances for the latter ones. Applying the same metrics we show how GPM performances improve as the temporal aggregation increases. Several drawbacks were detected in the coastal areas, which were characterized by worse performances than internal areas. Statistics are generally very similar for the two considered case studies (i.e., Sardinia and Sicily) except for correlation between topography and accuracy of GPM products, which was slightly higher for Sardinia. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108788
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Regional Environmental Protection Agency of Sardinia (ARPAS), viale Ciusa 6, Cagliari, Italy; Dipartimento di Ingegneria Civile, Ambientale e Architettura (DICAAR), Università di Cagliari, via Marengo 2, Cagliari, Italy; Dipartimento di Ingegneria Civile, Ambientale, Aereospaziale, e dei Materiali (DICAM), Università di Palermo, viale delle Scienze, Palermo, Italy
Recommended Citation:
Caracciolo D.,Francipane A.,Viola F.,et al. Performances of GPM satellite precipitation over the two major Mediterranean islands[J]. Atmospheric Research,2018-01-01,213