干旱区生态环境知识资源中心(Arid): GOFOS, ground optical fog observation system for monitoring the vertical stratocumulus-fog cloud distribution in the coast of the Atacama Desert, Chile

Arid

DOI	10.1016/j.jhydrol.2021.126190
	GOFOS, ground optical fog observation system for monitoring the vertical stratocumulus-fog cloud distribution in the coast of the Atacama Desert, Chile
	del Rio, Camilo; Lobos, Felipe; Siegmund, Alexander; Tejos, Cristian; Osses, Pablo; Huaman, Zeidy; Pablo Meneses, Juan; Garcia, Juan-Luis
通讯作者	del Rio, C (corresponding author), Pontificia Univ Catolica Chile, Inst Geog, Santiago, Chile.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	597
英文摘要	Studying fog requires a good understanding of both its horizontal and vertical distributions. Among these two, the vertical one is the most challenging to observe. Different methods have been adopted for observing this variable, among which the most commonly used are satellite datasets, together with airborne and meteorological surface observations. Yet, all these techniques present significant limitations as for spatial and temporal resolution when describing the vertical fog structure. In this manuscript, we introduce the Ground Optical Fog Observation System (GOFOS), a new method to describe the advective fog's frequency and vertical distribution. This tool is based on in-situ optical observations, taking advantage of the topography of the Atacama Desert coastal mountains, where advective fog is frequent. During 2017, the GOFOS reported a fog presence <10% during summer and of similar to 50% during winter. Also, the GOFOS shows a diurnal variability of fog presence that decreases around noon and increases again starting from the afternoon. The vertical structure observed by the GOFOS shows a cloud depth of similar to 250 m, subject to diurnal and seasonal variabilities. By analyzing GOFOS results through a comparison with the ones obtained by standard observations, a similar to 93% agreement was found between the fog frequencies detected by the GOFOS and GOES. Also, we found a similar to 80% consistency between GOFOS fog frequency values and marine boundary layer regimes related to fog formation. Moreover, we observed that the cloud base height estimated by the GOFOS is correlated with the Iquique Airport ceilometer measurements (r = +0.6). Finally, the mean cloud top height estimated by the GOFOS differs by 8% from the Antofagasta Airport radio-soundings measurements. These results provide useful information for the selection of optimal sites for fog harvesting and for getting a better understanding of the interactions between fog and its ecosystem. In conclusion, through this study the GOFOS demonstrated its potential as a simple, reliable, and affordable method for systematic fog monitoring that might also be adapted to different topographic conditions.
英文关键词	Fog observation Cloud vertical structure Standard meteorological observations Advective fog Coastal Atacama
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000652835600069
WOS关键词	SOUTHEAST PACIFIC ; TARAPACA REGION ; BOUNDARY-LAYER ; RADIATION-FOG ; CLIMATE-CHANGE ; COLLECTION ; STRATUS ; AVHRR
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350901
作者单位	[del Rio, Camilo; Osses, Pablo; Garcia, Juan-Luis] Pontificia Univ Catolica Chile, Inst Geog, Santiago, Chile; [del Rio, Camilo; Osses, Pablo; Garcia, Juan-Luis] Ctr UC Desierto Atacama, Santiago, Chile; [Lobos, Felipe; Huaman, Zeidy] Pontificia Univ Catolica Chile, Dept Ingn Hidraul & Ambiental, Santiago, Chile; [Lobos, Felipe] Wageningen Univ, Meteorol & Air Qual Grp, Wageningen, Netherlands; [Siegmund, Alexander] Heidelberg Univ, Heidelberg Ctr Environm, Heidelberg, Germany; [Siegmund, Alexander] Heidelberg Univ, Inst Geog, Heidelberg, Germany; [Siegmund, Alexander] Heidelberg Univ Educ, Dept Geog, Res Grp Earth Observat Rgeo, Heidelberg, Germany; [Tejos, Cristian; Pablo Meneses, Juan] Pontificia Univ Catolica Chile, Biomed Imaging Ctr, Dept Elect Engn, Santiago, Chile; [Tejos, Cristian; Pablo Meneses, Juan] Pontificia Univ Catolica Chile, Millennium Nucleus Cardiovasc Magnet Resonance, Santiago, Chile
推荐引用方式 GB/T 7714	del Rio, Camilo,Lobos, Felipe,Siegmund, Alexander,et al. GOFOS, ground optical fog observation system for monitoring the vertical stratocumulus-fog cloud distribution in the coast of the Atacama Desert, Chile[J],2021,597.
APA	del Rio, Camilo.,Lobos, Felipe.,Siegmund, Alexander.,Tejos, Cristian.,Osses, Pablo.,...&Garcia, Juan-Luis.(2021).GOFOS, ground optical fog observation system for monitoring the vertical stratocumulus-fog cloud distribution in the coast of the Atacama Desert, Chile.JOURNAL OF HYDROLOGY,597.
MLA	del Rio, Camilo,et al."GOFOS, ground optical fog observation system for monitoring the vertical stratocumulus-fog cloud distribution in the coast of the Atacama Desert, Chile".JOURNAL OF HYDROLOGY 597(2021).