当前位置: X-MOL 学术J. Maps › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Glaciated valleys in Europe and western Asia.
Journal of Maps ( IF 2.2 ) Pub Date : 2015-01-14 , DOI: 10.1080/17445647.2014.921647
Günther Prasicek 1 , Jan-Christoph Otto 2 , David R Montgomery 3 , Lothar Schrott 4
Affiliation  

In recent years, remote sensing, morphometric analysis, and other computational concepts and tools have invigorated the field of geomorphological mapping. Automated interpretation of digital terrain data based on impartial rules holds substantial promise for large dataset processing and objective landscape classification. However, the geomorphological realm presents tremendous complexity and challenges in the translation of qualitative descriptions into geomorphometric semantics. Here, the simple, conventional distinction of V-shaped fluvial and U-shaped glacial valleys was analyzed quantitatively using multi-scale curvature and a novel morphometric variable termed Difference of Minimum Curvature (DMC). We used this automated terrain analysis approach to produce a raster map at a scale of 1:6,000,000 showing the distribution of glaciated valleys across Europe and western Asia. The data set has a cell size of 3 arc seconds and consists of more than 40 billion grid cells. Glaciated U-shaped valleys commonly associated with erosion by warm-based glaciers are abundant in the alpine regions of mid Europe and western Asia but also occur at the margins of mountain ice sheets in Scandinavia. The high-level correspondence with field mapping and the fully transferable semantics validate this approach for automated analysis of yet unexplored terrain around the globe and qualify for potential applications on other planetary bodies like Mars.



中文翻译:

欧洲和西亚的冰川谷。

近年来,遥感,形态计量学分析以及其他计算概念和工具使地貌制图领域蓬勃发展。基于公正规则的数字地形数据自动解释对于大型数据集处理和客观景观分类具有广阔的前景。然而,地貌领域在将定性描述转换为地貌语义学方面提出了巨大的复杂性和挑战。在这里,使用多尺度曲率和称为最小曲率差(DMC)的新型形态计量变量,定量分析了V形河流谷和U形冰川谷的简单常规区别。我们使用这种自动地形分析方法生成了比例为1:6,000的栅格地图,000显示了欧洲和西亚的冰川谷分布。数据集的像元大小为3弧秒,由超过400亿个网格像元组成。在欧洲中部和西亚的高山地区,通常与温暖的冰川侵蚀相关的U型冰川谷丰富,但也出现在斯堪的纳维亚半岛的高山冰盖边缘。与场映射的高级对应关系以及可完全转移的语义验证了此方法可用于自动分析全球尚未探索的地形,并有资格在其他行星体(如火星)上进行潜在的应用。在欧洲中部和西亚的高山地区,通常与温暖的冰川侵蚀相关的U型冰川谷丰富,但也出现在斯堪的纳维亚半岛的高山冰盖边缘。与场映射的高级对应关系以及可完全转移的语义验证了此方法可用于自动分析全球尚未探索的地形,并有资格在其他行星体(如火星)上进行潜在的应用。在欧洲中部和西亚的高山地区,通常与温暖的冰川侵蚀相关的U型冰川谷丰富,但也出现在斯堪的纳维亚半岛的高山冰盖边缘。与场映射的高级对应关系以及可完全转移的语义验证了此方法可用于自动分析全球尚未探索的地形,并有资格在其他行星体(如火星)上进行潜在的应用。

更新日期:2015-01-14
down
wechat
bug