The Lena River Delta - inventory of lakes and geomorphological terraces

This data set provides a detailed inventory of lakes in the Lena Delta, northern Siberia, with respect to the lakes' association with one of the three geomorphological main terraces of the Lena Delta. The inventory is based on Landsat-7 ETM+ image data and spatial analysis in a Geographical Information System (GIS). Several morphometric lake attributes were determined from the resulting dataset and statistically analyzed. Significant differences in the morphometric lake characteristics allowed the distinction of a mean lake type for each main terrace. The lake types reflect the special lithological and cryolithological conditions and geomorphological processes prevailing on each terrace. In Morgenstern et al. (2008), special focus was laid on the investigation of lake orientation and the discussion of possible mechanisms for the evolution of the second terrace's oriented lakes.

该数据集针对西伯利亚北部勒拿河三角洲的湖泊，提供了其与勒拿河三角洲三大地貌主阶地（geomorphological main terraces）之一关联的详细清单。该清单基于Landsat-7 ETM+影像数据及地理信息系统（Geographical Information System, GIS）中的空间分析构建。从生成的数据集中提取了多种湖泊形态计量属性（morphometric lake attributes）并进行统计分析。湖泊形态计量特征的显著差异使得能够区分每个主阶地的典型湖泊类型。这些湖泊类型反映了各阶地特有的岩性、冰冻岩性条件及主导地貌过程。在Morgenstern等人（2008）的研究中，重点关注了湖泊朝向的调查及二阶地定向湖泊演化可能机制的探讨。