Determining topographic shielding from digital elevation models for cosmogenic nuclide analysis: a GIS model for discrete sample sites
文献类型：期刊论文
| 作者 | Li, YK |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:5页码:939-947 |
| 关键词 | Cosmogenic nuclides Topographic shielding Digital elevation models (DEMs) ArcGIS modelbuilder |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-4895-4 |
| 文献子类 | Article |
| 英文摘要 | Topographic shielding (TS) is an important factor in cosmogenic nuclide surface exposure dating. The development of geographic information systems (GIS) and the availability of digital elevation models (DEMs) make it possible to derive this factor directly from a DEM. Most available GIS models derive the TS factors for an area (all cells in a DEM) without the consideration of surface conditions of individual sites, such as the strike, dip, and height above ground, into the calculation. This paper presents a new GIS model to derive the TS factors for discrete sample sites. This model uses the Skyline and Skyline Graph functions in ArcGIS to extract the set of azimuth and elevation angles of topographic obstructions around each site from a DEM (considering the sample height above ground) and then incorporates the strike and dip information of the sample surface to derive the TS factor. All processing tools and steps are streamlined in ArcGIS modelbuilder and this model can be run like a standard ArcGIS geoprocessing tool. It provides an easy and user-friendly means to derive the TS factors for discrete samples based on a DEM and the measured strike, dip and sample height for each site. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000431989800002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35531]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.5 |
| 推荐引用方式 GB/T 7714 | Li, YK. Determining topographic shielding from digital elevation models for cosmogenic nuclide analysis: a GIS model for discrete sample sites[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(5):939-947. |
| APA | Li, YK.(2018).Determining topographic shielding from digital elevation models for cosmogenic nuclide analysis: a GIS model for discrete sample sites.JOURNAL OF MOUNTAIN SCIENCE,15(5),939-947. |
| MLA | Li, YK."Determining topographic shielding from digital elevation models for cosmogenic nuclide analysis: a GIS model for discrete sample sites".JOURNAL OF MOUNTAIN SCIENCE 15.5(2018):939-947. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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