Geomorphological evolution of Heard Island

1. PHOTOGRAPHIC RECORDS(sets to be made available to AAD multimedia centre for permanent record)1a Glacier margin positionsAerial oblique and some ground-based photographs1b Summit crater of Big BenAerial oblique photographs1c Environmental impacts of researchGround-based photographs of research excavation sites (before excavation, during excavation, after rehabilitation, GPS locations) 2. TOPOGRAPHIC PROFILES2a Intended long term coastal monitoring sitesSimple profiles from permanent markers (with GPS) compiled from compas and clinometer traverses (amply detailed to capture changes at the scales being observed and simple to repeat)2b Beach profilesSimple profiles compiled from clinometer and tape traverses to characterise selected beaches as part of geomorphological survey; GPS locations2c. Dovers Moraine profilesSimple profiles compiled from clinometer, compass and tape traverses to characterise ridge sequence and establish approximate altitude of palaeolake shorelines; some GPS locations.Details are given in the spreadsheet at the url below.3. GLACIAL LANDFORMS AND RELATIVE DATING3a Reconnaissance-level landform surveyMorphostratigraphic relationships between landforms recorded in note form, photographically, or directly onto field maps; by estimation with some GPS control.3b Criteria for relative datingSemiquantitative data on moraine morphology; descriptive data on subsurface weathering status; GPS locations3c SamplingSamples obtained for laboratory analysis (mechanical and chemical analysis and some radiometric dating - processing will be dependent upon obtaining adequate financial resources; GPS locations; samples, sampling sites and desired use as indicated in the spreadsheet at the url below.The downloadable dataset contains:1. Photographic record of glacier margins and summit of Big Ben as at December 20002. Simple topographic profiles of eroding coastlines for long term monitoring processes, selected beach profiles and profiles over Dovers Moraine3. Data on glacial geomorphology and glacial geology including postdepositional modification of moraines and glacial sediments and samples for weathering studies and possible radiometric dating.The fields in this dataset are:northingeastingheight (ASL)locationsample numbersample typesample datelongitudelatitudelandformgeneral profileweathering and sediment stratigraphysamplingphotographs

1. 摄影记录（将提供给AAD多媒体中心作为永久存档）
1a 冰川边缘位置：航空斜向摄影及部分地面摄影
1b 大本峰（Big Ben）峰顶火山口：航空斜向摄影
1c 研究活动的环境影响：研究发掘场地的地面摄影（包含发掘前、发掘中、修复后阶段的影像，以及GPS定位信息）
2. 地形剖面
2a 长期海岸监测预选站点：来自永久标记点（搭载GPS）的简易地形剖面，由罗盘与测斜仪踏勘获取，该剖面细节充足，可捕捉观测尺度下的地貌变化，且易于重复测量
2b 海滩剖面：由测斜仪与卷尺踏勘获取的简易剖面，用于表征选定海滩的地貌特征，属于地貌调查范畴，包含GPS定位信息
2c 多弗斯冰碛（Dovers Moraine）剖面：由测斜仪、罗盘与卷尺踏勘获取的简易剖面，用于表征冰碛脊序列并确定古湖岸线的近似海拔，包含部分GPS定位信息。详细信息见下述链接中的电子表格。
3. 冰川地貌与相对年代学
3a 踏勘级地貌调查：以笔记、摄影或直接标注野外地图的方式记录各类地貌间的形态地层关系，结合估算数据与部分GPS控制点位
3b 相对年代学判定标准：冰碛形态的半定量数据、地下风化状态的描述性数据，包含GPS定位信息
3c 采样：用于实验室分析的样品（涵盖机械分析、化学分析及部分放射性测年项目——样品处理进度将取决于是否获得充足经费支持），包含GPS定位信息；样品信息、采样点位及预期用途详见下述链接中的电子表格。

本次可下载数据集包含：
1. 2000年12月的冰川边缘及大本峰峰顶摄影记录
2. 用于长期海岸监测的侵蚀海岸线简易地形剖面、选定海滩剖面及多弗斯冰碛剖面
3. 冰川地貌与冰川地质数据，包括冰碛及冰川沉积物的沉积后改造情况，以及用于风化研究与潜在放射性测年的实验样品。

该数据集包含的字段如下：
北距（northing）、东距（easting）、海拔（高于海平面，ASL）、点位（location）、样品编号（sample number）、样品类型（sample type）、样品数据（sample data）、经度（longitude）、纬度（latitude）、地貌（landform）、通用剖面（general profile）、风化与沉积物地层（weathering and sediment stratigraphy）、采样（sampling）、摄影记录（photographs）