论文标题
具有尺寸，重量和功率受限机器人的冰底底底底色地球化学观测
Enabling Under-Ice Geochemical Observations with a Size, Weight, and Power-Constrained Robot
论文作者
论文摘要
北极河口环境中温室气体排放的估计是由原位夏季无冰溶解的气体测量值支配的，这是由于在这些条件下进行现场观察的后勤易于进行。然而，沿海北极环境中的最新证据表明，溶解的甲烷（CH4）和二氧化碳（CO2）在季节性上有很大的变化，并且在春季新鲜物体期间至少发生了一个重要的燃气通风事件。北极是否充当温室排放的来源或水槽对建模气候变化及其反馈机制具有重要意义。为了使溶解气体在通常的不足条件下的溶解气体进行更高分辨率的时空测量，可以使用远程操作的车辆（ROV）来在春季新鲜材料之前和期间提取冰以下的连续水样品。在这里，我们提出了一个适合于进行冰冰底盘的地球化学观测值的尺寸，重量和功率约束（交换）水下车辆（UV）和新型的地球化学采样系统，并在北极河口研究的现场 - 分析设置中演示了所提出的系统。
Estimates of greenhouse gas emissions from Arctic estuarine environments are dominated by in situ summer-time ice-free dissolved gas measurements due to the logistical ease of performing field observations in these conditions. Recent evidence in coastal Arctic environments, however, has demonstrated that dissolved methane (CH4) and carbon dioxide (CO2) are strongly seasonally variable, and at least one significant gas ventilation event occurs during the spring freshet. Whether the Arctic serves as a source or sink of greenhouse emissions has significant implications on modeling climate change and its feedback mechanisms. To enable higher resolution spatiotemporal measurements of dissolved gases in typically undersampled conditions, remotely operated vehicles (ROVs) can be used to extract near continuous water samples below ice before and during the spring freshet. Here, we present a size, weight, and power-constrained (SWAP) underwater vehicle (UV) and novel geochemical sampling system suitable for taking under-ice geochemical observations and demonstrate the proposed system in a field-analog setting for Arctic estuarine studies.
