Storm surges, Waves, Hydrodynamics and Vegetation Surveys in Deal Island, MD, USA (2018)

These datasets include measurements of hydrodynamic (currents and water levels) and wave conditions, vegetation bio-mechanic characteristics (biomass, stem height, diameter, and density), and topo-bathymetric features during the period of (2018) that were measured in the field during extreme events, regular tidal cycles, and over different seasons. This dataset provides the information for the campaigns in Deal Island, Maryland, USA. Hydrodynamic measurements were carried out with Acoustic Doppler Current Profilers (ADCPs) (Aquadopp Nortek 2 MHz) and RBR D-wave sensors; vegetation surveys included the measurements of vegetation height, diameter and stem spacing using randomly placed 0.25 m2 quadrats on the ground surface. The sensors, topo-bathy data and vegetation measurement’s locations are georeferenced using a differential GPS Trimble R4. SAV measurements (when present) were carried out by using haphazardly placed 0.25m2 quadrats. At each site, the team measured 1) total SAV percent cover, 2) percent cover of each individual species, 3) canopy height, 4) epiphyte presence on SAV leaf blades, and 5) water depth. All the field procedures, data processing, equipment, and project methodology are described in the QAPP document.
This field work is part of the project “Quantifying storm surge attenuation by wetlands” funded by The Nature Conservancy. The project is a collaboration between George Mason University, The Nature Conservancy and The Maryland Department of Natural Resources (DNR).

本数据集涵盖了在极端事件、常规潮汐周期及不同季节期间，对水动力（流速和水位）及波浪条件、植被生物力学特性（生物量、茎高、直径和密度）以及地形-水深特征的现场测量数据（2018年）。该数据集提供了美国马里兰州 Deal Island 的调查信息。水动力测量采用声学多普勒流速剖面仪（ADCPs）（Aquadopp Nortek 2 MHz）和RBR D-wave传感器进行；植被调查包括使用地面随机放置的0.25平方米正方形样方对植被高度、直径和茎间距进行测量。传感器、地形-水深数据和植被测量位置均使用Trimble R4差分GPS进行地理编码。当存在时，使用随机放置的0.25平方米正方形样方进行SAV测量。在每个调查点，团队测量了以下内容：1）总SAV覆盖率百分比，2）每种个体的覆盖率百分比，3）冠层高度，4）SAV叶片上的附生植物存在情况，以及5）水深。所有现场操作、数据处理、设备和项目方法均在QAPP文件中进行了描述。这项野外工作属于由大自然保护协会资助的“量化湿地对风暴潮衰减的影响”项目。该项目是乔治梅森大学、大自然保护协会和马里兰州自然资源部（DNR）之间的合作项目。