Can Quantum Technology gravity be combined with other (non QT) geophysical instrumentation to set constraints for gravity inversion?

了解地下埋藏了什么以及地面状况如何(软弱地区、低密度)，对于在HS2和Crossail等预算建设项目中提供安全和可靠的数据，以及降低矿井等埋藏危险造成的风险至关重要。有几种不同的技术可以看穿地面，但其中许多技术依赖于通过地面发射电磁波，然后电磁波被掩埋的物体反射，反射的信号在地面接收。然而，地面，特别是湿粘土，真的很难看到任何超过几厘米深的东西。因此，需要利用一种替代技术，如微重力。这项技术通过测量密度变化来测量地下的重力场，但现有的传感器受到周围建筑物或地物的密度、交通振动以及风浪和海潮等因素的影响。该项目将研究使用包括电阻率和/或地震在内的多个传感器来约束反演技术，从而增加对结果的置信度。重点将是评估其他地球物理技术可以为重力反演带来的好处。该项目将把计算机模拟与实地试验(或大规模实验室试验)结合起来，以评估多传感器方法的益处。这项工作将包括与地球物理学行业以及英国地质调查局密切合作。还将与以伯明翰为首的Qt Hub在传感器和计量(http://www.birmingham.ac.uk/generic/quantum/index.aspx)方面进行密切合作，他们正在开发一种新型量子技术传感器，与传统的重力传感器相比，该传感器有望具有更高的分辨率和稳定性。

Understanding what is buried in the ground and what is the condition of the ground (soft areas, low density) is vitally important to deliver safe and in budget construction projects,such as HS2 and Crossrail, and reduce the risk due to buried hazards such as mineshafts. Several different technologies exist to see through the ground, but many of these rely on transmitting an electromagnetic wave through the ground which is then reflected off a buried object, with the reflected signal received at the ground surface. However, the ground, especially wet clay, can make it really difficult to see anything deeper than a few centimetres. Therefore, an alternative technology such as micro-gravity needs to be utilised. This technology measures the gravitational field of the subsurface by measuring density variations, but existing sensors are affected by the density of surrounding buildings or features, vibration from traffic and wind and ocean tides, to name but a few. This project will investigate the use of multiple sensors including resistivity and/or seismic to constrain inversion techniques, thereby increasing the confidence in the results. The focus will be on assessing the benefits other geophysical technologies can provide for gravity inversion. The project will combine computer modelling with field trials (or large-scale laboratory trials) to assess the benefits of the multi-sensor approach. The work will include working closely with the geophysics industry as well as the British Geological Survey. There will also be close collaboration with the QT Hub in Sensors and Metrology (http://www.birmingham.ac.uk/generic/quantum/index.aspx) led by Birmingham who are developing a novel Quantum Technology Sensor, which promises to have a higher resolution and stability compared with traditional gravity sensors.