Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD028137 |
Combining ASCAT and NEXRAD Retrieval Analysis to Explore Wind Features of Mesoscale Oceanic Systems | |
Priftis, G.1; Lang, T. J.2; Chronis, T.3 | |
2018-09-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:18页码:10322-10341 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Oceanic mesoscale systems often produce heavy rainfall and can cause significant hazards in coastal regions and aviation. Surface features that are important in the evolution of these systems were examined combining the Advanced Scatterometer (ASCAT) on board the polar-orbiting meteorological satellite series Metop-A and -B and ground instrumentation; that is, Next Generation Weather Radars, soundings, buoys. Two case studies were analyzed, over the coastal United States, by reprojecting ASCAT wind and ground radar precipitation and wind retrievals over a common grid domain. ASCAT retrievals were in agreement with buoy and sounding measurements at distances greater than 30km from the precipitation region. Enhanced uncertainty in ASCAT wind retrievals in heavy precipitation was represented by greater wind direction variability and increases in wind speed. Nevertheless, ASCAT was able to identify regions of convergence and divergence within the systems, as well as outflow boundaries associated with downdrafts, which agreed with wind fields retrieved from the single-Doppler analysis. Quality flags reported by ASCAT were also examined against polarimetric radar retrievals. Thresholds for rain rate and median volume diameter (D-0), corresponding to the boundary between flagged and unflagged ASCAT data, were variable among different cases. However, analysis of ice water path and liquid water path revealed that unflagged ASCAT data rarely exceeded approximately 0.5 kg/m(2) in either parameter. |
英文关键词 | scatterometer oceanic convection NEXRAD ASCAT mesoscale system |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447807300019 |
WOS关键词 | HYDROMETEOR IDENTIFICATION ALGORITHM ; THUNDERSTORM GUST FRONTS ; MID-LATITUDE CYCLONES ; SCATTEROMETER DATA ; PRECIPITATION FEATURES ; MICROSCALE STRUCTURE ; CONVECTIVE SYSTEMS ; RADAR MEASUREMENTS ; RAIN DETECTION ; DOPPLER-RADAR |
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/34082 |
专题 | 气候变化 |
作者单位 | 1.Univ Alabama, Dept Atmospher Sci, Huntsville, AL 35899 USA; 2.NASA, Marshall Flight Space Ctr, Huntsville, AL USA; 3.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA |
推荐引用方式 GB/T 7714 | Priftis, G.,Lang, T. J.,Chronis, T.. Combining ASCAT and NEXRAD Retrieval Analysis to Explore Wind Features of Mesoscale Oceanic Systems[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(18):10322-10341. |
APA | Priftis, G.,Lang, T. J.,&Chronis, T..(2018).Combining ASCAT and NEXRAD Retrieval Analysis to Explore Wind Features of Mesoscale Oceanic Systems.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(18),10322-10341. |
MLA | Priftis, G.,et al."Combining ASCAT and NEXRAD Retrieval Analysis to Explore Wind Features of Mesoscale Oceanic Systems".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.18(2018):10322-10341. |
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