干旱区生态环境知识资源中心(Arid): Observing the pre-convective environment and convection initiation with Doppler Lidar and cloud radar in the Al Hajar Mountains of the United Arab Emirates

Arid

DOI	10.1127/metz/2021/1100
	Observing the pre-convective environment and convection initiation with Doppler Lidar and cloud radar in the Al Hajar Mountains of the United Arab Emirates
	Branch, Oliver; Behrendt, Andreas; Alnayef, Osama; Spath, Florian; Schwitalla, Thomas; Temimi, Marouane; Weston, Michael; Farrah, Sufian; AL YAzEEDI, Omar; Tampi, Siddharth; DE Waal, Karel; Wulfmeyer, Volker
通讯作者	Branch, O (corresponding author)，Univ Hohenheim, Inst Phys & Meteorol, Garbenstr 30, D-70593 Stuttgart, Germany.
来源期刊	MEASUREMENT TECHNIQUES
ISSN	0543-1972
EISSN	1573-8906
出版年	2022-01
英文摘要	In this study, we present multi-season measurements from a remote mountain peak observatory in the United Arab Emirates (UAE). During the campaign, Doppler lidar and cloud radar were employed using coordinated scan patterns, to study seedable convective clouds, and identify pre-convection initiation clear-air signatures. The instruments were employed for approximately two years in an extreme environment with a high vantage point for observing valley wind f ows and convective cells. The instruments were conf gured to run synchronized plan position indicator (PPI) scans at 0 degrees, 5 degrees, and 45 degrees elevation angles and vertical cross-section range height indicator (RHI) scans at 0 degrees, 30 degrees, 60 degrees, 90 degrees, 120 degrees, and 150 degrees azimuth angles. Using this output imagery, along with local C-band radar and satellite data, we were able to identify and analyse several convective cases. To illustrate this synergy of measurements, we present two cases in unstable conditions - the 5 and 6 September 2018. In both cases, we observed areas of convergence/divergence to the south-west of the observatory, associated with wind f ow around a peak 2 km to the south-west. The extension of these deformations were visible in the atmosphere as high as 3 km above sea level. Subsequently, we observed convective cells developing in the same directions - apparently connected with these phenomena. The cloud radar Doppler images provided detailed observations of cloud hydrometeor dynamics. In both convective cases, pre-convective signatures were apparent before CI, in the form of convergence, wind shear structures, and updrafts. These results demonstrate the potential of these synergetic observations for understanding convection initiation processes and in the future, to provide cloud seeding guidance via early detection of CI events.
英文关键词	Convection initiation mountains remote sensing Doppler lidar cloud radar arid
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000747824700001
WOS关键词	WATER ; PRECIPITATION ; ASSIMILATION ; PROFILES ; RAINFALL ; WEATHER ; CLIMATE ; IMPACT ; PLANTATIONS ; TEMPERATURE
WOS类目	Engineering, Multidisciplinary ; Instruments & Instrumentation
WOS研究方向	Engineering ; Instruments & Instrumentation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377203
作者单位	[Branch, Oliver; Behrendt, Andreas; Alnayef, Osama; Spath, Florian; Schwitalla, Thomas; Wulfmeyer, Volker] Univ Hohenheim, Inst Phys & Meteorol, Garbenstr 30, D-70593 Stuttgart, Germany; [Temimi, Marouane] Stevens Inst Technol, Dept Civil Environm & Ocean Engn CEOE, Hoboken, NJ 07030 USA; [Weston, Michael] Khalifa Univ Sci & Technol, Abu Dhabi, U Arab Emirates; [Farrah, Sufian; AL YAzEEDI, Omar; Tampi, Siddharth; DE Waal, Karel] Natl Ctr Meteorol, Abu Dhabi, U Arab Emirates
推荐引用方式 GB/T 7714	Branch, Oliver,Behrendt, Andreas,Alnayef, Osama,et al. Observing the pre-convective environment and convection initiation with Doppler Lidar and cloud radar in the Al Hajar Mountains of the United Arab Emirates[J],2022.
APA	Branch, Oliver.,Behrendt, Andreas.,Alnayef, Osama.,Spath, Florian.,Schwitalla, Thomas.,...&Wulfmeyer, Volker.(2022).Observing the pre-convective environment and convection initiation with Doppler Lidar and cloud radar in the Al Hajar Mountains of the United Arab Emirates.MEASUREMENT TECHNIQUES.
MLA	Branch, Oliver,et al."Observing the pre-convective environment and convection initiation with Doppler Lidar and cloud radar in the Al Hajar Mountains of the United Arab Emirates".MEASUREMENT TECHNIQUES (2022).