Rock glaciers in the Pyrenees, Spain and France, Version 1

This study and inventory of active rock glaciers was carried out by means of the usual techniques used in the study of alpine permafrost. First, the rock glaciers were located by means of aerial photography and field work. Second, a detailed geomorphological map was prepared, to detect the active processes in each rock glacier. This includes geotransect and surface analysis (clast roundness, clast forms, particle orientation and lichenometric measurements). Third, complementary measurements (water temperature and BTS [bottom temperature of snow] measurements) were carried out. These three studies allowed us to determine the activity or inactivity of previously detailed landforms, and to classify them as active, inactive, or relict rock glaciers. The external landforms, frontal slope, vertical organization, flow forms, absence of lichens and the descriptive parameters of rock glaciers allowed us to classify them as relict or active ones.On the Besiberri, Gemelos, and Argualas rock glaciers we have carried out photogrammetric studies, and on the Argualas rock glacier we carried out a topographic survey from 1991 and also geoelectric soundings (San Jose et al. 1992, Serrano et al. 1995, Fabre et al. 1995). These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.本研究采用高山多年冻土研究领域通用的技术手段，开展了活动岩冰川(rock glacier)的调查与编目工作。首先，通过航空摄影与野外实地考察确定岩冰川的分布位置；其次，绘制详细的地貌图以识别每一处岩冰川的活动过程，内容涵盖地貌断面分析与表面特征分析，包括岩屑圆度、岩屑形态、颗粒定向以及地衣测年测量等；第三，开展补充测量工作，包括水温测量与雪底温度(BTS)测量。通过上述三项研究，我们得以明确此前已详细记录的地貌的活动状态，并将其划分为活动岩冰川、非活动岩冰川与残留岩冰川三类。岩冰川的外部地貌、前缘坡度、垂直结构、流动形态、无地衣覆盖特征以及各项描述性参数，也可辅助我们完成残留岩冰川与活动岩冰川的分类工作。针对Besiberri、Gemelos与Argualas三处岩冰川，我们开展了摄影测量研究；针对Argualas岩冰川，我们还完成了1991年的地形测量以及电测深勘探（San Jose等，1992；Serrano等，1995；Fabre等，1995）。本数据集相关数据已于1998年6月发布于CAPS Version 1.0版光盘中。