WP2: Full Seafloor Spectrum

This WP consolidates the cross-WP tasks of dataset selection and validation, reducing work in each WP and choosing datasets with more cross-WP interest. This WP will also quantify seismological noise levels and compile a a full-spectrum vision of the results of WPs 3-5.

Work Package Management Site

Objectives

• Establish a catalogue of existing data (by oceans and world regions) and how to access them.
• Establish a catalogue of ocean bottom noise signals and their sources.
• Determine the seafloor pressure noise floor.

Tasks

Number	Title	Responsable	Status
T2.1	Dataset selection and validation	@WayneCrawford, Eleonore, Guilhem	not started
T2.2	Pressure noise bounds	@WayneCrawford	not started
T2.3	Noise source catalog	@WayneCrawford, Kinda?	not started

Deliverables

Number	Title	Due Date	Status
D2.1	Catalogue of available OBS data and characteristics	M12	not started
D2.2	Low and High noise reference levels for OBS	M36	not started
D2.3	Seismological noise source catalog	M44	not started

Possible OBS datasets

See here

Details

Task 2.1: Dataset identification and validation

• 2.1.1: Catalogue existing databases and their characteristics (access method, region, sensors, seasons…)
• 2.1.2: Evaluate the interest of each dataset according to the needs of WPs 3-5
• 2.1.3: Select data sets based on the above criteria
• 2.1.3: Validate data access and specify the access method for each selected data set

Task 2.2: Pressure noise bounds

For the chosen data sets and other large or spatially isolated datasets, we will confirm instrument responses and calculate Probabilistic Power Spectral Densities to determine upper and lower bounds of seafloor pressure signals.

This should be done in coordination with EnvSeis ESR04 and in comparison with the noise bounds provided in Brown et al. 2014 (figure below)

Task 2.3: Seismological noise source catalog

Combining the noise sources identified by WPs 3-5 with other sources in the scientific literature.