摘要
海底沉积物实验室测量状态与海底原状态存在较大差异,因此有必要进行声速校正。基于研究海底浅表层沉积物采样样品的原状态与实验室环境的差异,提出运用Hamilton声速校正模型对实验室测量沉积物声速数据进行校正,实现表层沉积物标准测量环境(23℃,1个大气压)下的声速校正到海底原状态;设计了温度变化实验测试南海海底沉积物的声速比变化,验证了Hamilton模型的可行性并将其推广到室温状态下各个温度的校正;分析了Hamilton声速校正模型应用于海底浅表层沉积物声速校正的可行性。
It is necessary to make a correction of acoustic velocity of seafloor sediments measured in laboratory because of the difference between laboratory environment and original state of seafloor. A Hamilton acoustic velocity correction model is suggested to make this correction, with a standard measurement environment of 23℃ and 1 atmosphere. A temperature experiment is carried out to test the validity of the Hamilton model and enlarge its applied scope to the correction at any temperature in laboratory environment. The feasibility for this model to be used in shallow seafloor sediments is also analyzed.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2008年第1期27-31,共5页
Journal of Tropical Oceanography
基金
国家自然科学基金项目(40476020,40676040)
关键词
海底沉积物
声速
校正
seafloor sediment
acoustic velocity
correction
