Marine Corps Base Camp Lejeune Barrier Morphology- Elevation of Bear Island Sept 2011

Critical military training and testing on lands along the nation’s coastal and estuarine shorelines are increasingly placed at risk because of encroachment pressures in surrounding areas, impairments due to other anthropogenic disturbances, and changes in climate and sea level. The U.S. Department of Defense (DoD) intends to enhance and sustain its training and testing assets and also optimize its stewardship of natural resources through the development and application of an ecosystem-based management approach on DoD installations. To accomplish this goal, particularly for installations in estuarine/coastal environments, the Strategic Environmental Research and Development Program (SERDP) launched the Defense Coastal/Estuarine Research Program (DCERP) as a 10-year effort at Marine Corps Base Camp Lejeune (MCBCL) in North Carolina. The results of the second 5 years of the program (DCERP2) are presented in the DCERP2 Final Report. There were four overarching objectives of DCERP2. The first objective was to understand the effects of climate change impacts, including warming temperatures, variability in the hydrological cycle, storm events, and sea level rise on the coastal ecosystems at MCBCL from observations and measurements made over the 10-year program. The second objective was to understand the carbon cycle of the coastal and terrestrial ecosystems at MCBCL through a highly integrated sampling program. The third objective was to develop models, tools, and indicators to evaluate current and projected future ecosystem state changes and translate scientific findings into actionable information for installation managers. The last objective was to recommend adaptive management strategies to sustain ecosystem natural resources within the context of an active military installation. This grid file was created from data collected using a Riegl 3-D laser scanner. Millions of x, y, and z points from Onslow Beach were processed using the MARS software package to define a bare-earth model. The beach was broken into a series of zones, each zone was processed separately, and this grid covers all of the zones. Data were collected during the same week and around the low tide (two hours before and after low tide).

沿美国沿海与河口海岸带开展的重要军事训练与测试活动，正日益面临多重风险：周边区域的侵占压力、其他人为活动干扰造成的生态损害，以及气候与海平面变化带来的影响。美国国防部（U.S. Department of Defense, DoD）旨在通过在其军事设施中开发并应用基于生态系统的管理模式，强化并维持其训练与测试资产，同时优化对自然资源的管护工作。为实现这一目标，尤其是针对河口与沿海环境中的军事设施，美国战略环境研究与发展计划（Strategic Environmental Research and Development Program, SERDP）在北卡罗来纳州的勒热纳海军陆战队基地（Marine Corps Base Camp Lejeune, MCBCL）启动了为期10年的国防沿海与河口研究计划（Defense Coastal/Estuarine Research Program, DCERP）。该计划的第二个五年阶段（DCERP2）的研究成果收录于《DCERP2最终报告》。DCERP2共设定四项核心目标：第一项目标为基于10年计划周期内的观测与测量数据，明晰气候变化（包括气温升高、水文循环变异、风暴事件以及海平面上升）对勒热纳海军陆战队基地沿海生态系统的影响；第二项目标为通过高度整合的采样计划，解析勒热纳海军陆战队基地沿海与陆地生态系统的碳循环过程；第三项目标为开发用于评估当前及预测未来生态系统状态变化的模型、工具与指标体系，并将科学研究成果转化为可供军事设施管理者使用的可操作信息；第四项目标为针对活跃军事设施的运营场景，提出可持续管护生态系统自然资源的适应性管理策略。本网格文件基于Riegl三维激光扫描仪（Riegl 3-D laser scanner）采集的数据生成。科研人员使用MARS软件包（MARS software package）对昂斯洛海滩（Onslow Beach）的数百万个X、Y、Z坐标点进行处理，以构建裸地地形模型。该海滩被划分为多个分区，每个分区均单独处理，本网格覆盖全部分区。数据采集于同一周内，且围绕低潮时段（低潮前后两小时）开展。