Using transoceanic cables to quantify global environmental changes



Coaxial, transoceanic telecommunications cables, which are broadly distributed in the Atlantic and Pacific oceans and in marginal seas, may present a unique opportunity for data acquisition over a wide range of geologic, oceanographic, and atmospheric regions. The concept of using these cables for Earth science observatories was suggested in the mid-1970s, and subsequent efforts resulted in the publication of a paper focusing primarily on the use of retired cables as ocean bottom seismic observatories [Nagumo and Walker, 1989] and the publication of a workshop report [Chave et al., 1990] discussing various basic research uses and existing technologies applicable to differing recording strategies.