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Saline Soil Foundation Survey
Salt Marsh Exploration
Salt marshes are unique environments that have a variety of features that must be explored and understood in order to effectively manage them. A salt marsh has many landforms, vegetation and aquatic communities that are vital for the health of the local ecosystem. Therefore......
1033 
Avery
microgravity exploration
In exploration and drilling for oil, microgravity surveys are used to map subtle regional density variations that can be related to oil and gas reservoirs. The technique is based on accurately measuring tiny variations in the gravity field of an area of interest. By analyzing the gravity field dat......
shallow reflection wave method
Introduction
The shallow refraction method is an important tool for the analysis of shallow subsurface structures. The method involves the analysis of seismic refraction data obtained from the subsurface in order to give an insight into the depth distribution of mechanical properties such as comp......
shallow refracted wave method
Introduction
Shallow refraction wave measurement is a geophysical method used to measure seismic velocity of subsurface layers. Originally developed in the 1920s, the method involves the use of a seismic source to generate a localized wave that is refracted when it reaches an interface between tw......
Earthquake Observation
Ground Motion Microseismic Observation
Microseismic monitoring is a technology that detects and records microseismic activities of the Earth’s subsurface. The technique provides direct insight into the mechanical behavior of a rock mass, thus enabling detailed characterization of the subsurface.......
Industrial Site Survey
Industrial Site Investigation
Industrial sites, large or small, have a complex of characteristics which requires careful examination, study and analysis in order to properly judge their suitability or potential suitability for use. Industrial site investigations are undertaken by a range of indiv......
Debris Flow Survey
Landslide Survey
Landslides refer to a variety of processes that result in the movement of soil and rock downslope, which can range from a single rock to an entire mountain. Their occurrence is usually due to prolonged rains, earthquakes or the cutting off of the ground surface. Landslides are pa......
Magnetic Prospecting
Introduction
Magnetometer Surveying is a method of geophysical exploration that is used to measure the magnitude, direction and gradient of the magnetic field at a survey location. A magnetometer survey can be used to determine the type and location of magnetic anomalies that could be associated ......
Topography
Surveying terrain is a process used to identify the points on a surface, usually of land, and then formulate a plan. It is a profession which dates back to ancient times, when the Romans used it to plot the roads they created. Surveying terrain is now used to assess land use, plot boundary lines, ......
GB4962-1985 Hydrogen safety technical regulations
Safety Requirements for Hydrogen Use
Hydrogen has been used in various industries such as chemicals, metallurgy, petroleum and aerospace, and is widely recognized as one of the main clean fuels in the future. In order to ensure the safety of hydrogen use, the Chinese Government promulgated the Sa......
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