Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4209/aaqr.2017.01.0021 |
A Case Study on Fog/Low Stratus Occurrence at Las Lomitas, Atacama Desert (Chile) as a Water Source for Biological Soil Crusts | |
Lehnert, Lukas W.1; Thies, Boris1; Trachte, Katja1,2; Achilles, Sebastian1; Osses, Pablo3; Baumann, Karen4; Schmidt, Jakob1; Samolov, Elena5; Jung, Patrick6; Leinweber, Peter4; Karsten, Ulf5; Buedel, Burkhard6; Bendix, Joerg1 | |
通讯作者 | Lehnert, Lukas W. |
会议名称 | 7th International Conference on Fog, Fog Collection and Dew |
会议日期 | JUL 24-29, 2016 |
会议地点 | Wroclaw, POLAND |
英文摘要 | The Atacama Desert is well known for the high occurrence of large-scale fog (spatial extents: hundreds of kilometers) emerging as low stratus (LST) decks over the Pacific Ocean. By contrast, the small-scale and heterogeneous occurrence of small-scale fog (hundreds of meters) particularly during summers is widely unconsidered. However, these events are important for the local vegetation and particularly for the biological soil crusts (BSC) that are widely distributed in this extreme ecosystem. Consequently, a case study in a typical fog oasis in the Pan de Azucar National Park was conducted to test the feasibility combining field measurements, drone profiling, remote sensing and numerical modeling (i) to investigate fog-type specific differences regarding dynamics, physical properties and formation, (ii) to test the applicability of remote sensing technology for fog monitoring based on existing low-resolution and a proposed new high-resolution product and (iii) to estimate the related fog water input to BSCs. Two types of fog were observed. The well-known fog/LST deck emerging from the Pacific Ocean with high water path and large spatial extent was the first type. Fog of the second type was patchier, small-scale and not necessarily connected to the LST over the ocean. Instead, fog formation of the second type was related to thermal breeze systems, which produced shallow clouds containing less water than those of type 1. In general, such small-scale fog events were not captured well by existing remote sensing products but could be detected with the proposed new high-resolution product which provided promising results. Both fog types were important water resources for the BSCs, with approximately 8% to 24% of the fog water flux available to the BSCs at the surface. The results indicated the feasibility of the proposed methods' pool to estimate the water budget of BSCs with a high spatial resolution in the future. |
英文关键词 | Orographic fog Landsat WRF-modeling Biological soil crusts Vertical fog droplet spectra |
来源出版物 | AEROSOL AND AIR QUALITY RESEARCH |
ISSN | 1680-8584 |
EISSN | 2071-1409 |
出版年 | 2018 |
卷号 | 18 |
期号 | 1 |
页码 | 254-269 |
出版者 | TAIWAN ASSOC AEROSOL RES-TAAR |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Germany;Chile |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000426427000021 |
WOS关键词 | OZONE-MONITORING INSTRUMENT ; TARAPACA REGION ; CO2 EXCHANGE ; GROUND FOG ; AVHRR DATA ; CLOUD ; CLIMATE ; MODIS ; PATH ; PARAMETERIZATION |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307694 |
作者单位 | 1.Philipps Univ Marburg, Fac Geog, D-35037 Marburg, Germany; 2.Ruhr Univ Bochum, Dept Geog, D-44780 Bochum, Germany; 3.Pontificia Univ Catolica Chile, Inst Geog, Santiago, Chile; 4.Univ Rostock, Fac Agr & Environm Sci, Soil Sci, D-18051 Rostock, Germany; 5.Rostock Univ, Inst Biol Sci Appl Ecol & Phycol, D-18051 Rostock, Germany; 6.Univ Kaiserslautern, Plant Ecol & Systemat, D-67663 Kaiserslautern, Germany |
推荐引用方式 GB/T 7714 | Lehnert, Lukas W.,Thies, Boris,Trachte, Katja,et al. A Case Study on Fog/Low Stratus Occurrence at Las Lomitas, Atacama Desert (Chile) as a Water Source for Biological Soil Crusts[C]:TAIWAN ASSOC AEROSOL RES-TAAR,2018:254-269. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。