Near-inertial internal waves funnelled into Taylor caps shape seamount tops, with implications for biodiversity in the deep ocean

Internal waves are energetic and ubiquitous in the ocean and their interactions with submarine topography could drive sediment resuspension and reshape seafloor substrate. However, the mechanisms governing such interactions are largely unknown. Here, using observational data at Pacific deep-sea seamounts, we show how near-inertial internal waves (NIWs) may affect substrate variability and benthic biodiversity via interactions with seamounts. In this dataset, we report in-situ observational data collected from six mooring sites on Caiwei seamount (CS) and Weijia seamount (WS) in the Northwest Pacific.
, , Mooring current and hydrological data were collected at two seamounts in the seamount chains in the Northwestern Pacific Ocean, the Caiwei seamount (CS) and Weijia seamount (WS). At both guyots, there were three moorings: C1-C3 at the CS and W1-W3 at the WS. Four of them (C1, C2, W1 and W2) were located at the flat summit. Another two moorings, C3 and W3, were at the summit edge. All moorings were equipped with seabird-37 conductivity-temperature-depth sensors (CTDs) and Aanderaa current meters (ACMs) installed below 100 m above the seafloor (Hab < 100 m). The mooring at W1 was also equipped with an upward looking 75KHz acoustic Doppler current profile (ADCP) fixed at depth of ∼400 m, while a downward looking 150KHz ADCP was fixed at Hab = 200 m at C3. Near C3 and W3, there were another two mooring sites equipped with an upward-looking 75KHz ADCP fixed at depths of 370 m and 320 m, respectively. At C3, two moorings had different observation periods but their observations near W3 were..., # Data from: Near-inertial internal waves funnelled into Taylor caps shape seamount tops, with implications for biodiversity in the deep ocean

## Description of the data and file structure

Mooring current and hydrological data were collected at two seamounts in the seamount chains in the Northwestern Pacific Ocean, the Caiwei seamount (CS) and Weijia seamount (WS). At both guyots, there were three moorings: C1-C3 at the CS and W1-W3 at the WS. Four of them (C1, C2, W1 and W2) were located at the flat summit. Another two moorings, C3 and W3, were at the summit edge. All moorings were equipped with seabird-37 conductivity-temperature-depth sensors (CTDs) and Aanderaa current meters (ACMs) installed below 100 m above the seafloor (*H~ab~* < 100 m). The mooring at W1 was also equipped with an upward looking 75KHz acoustic Doppler current profile (ADCP) fixed at depth of ∼400 m, while a downward looking 150KHz ADCP was fixed at *H~ab~* = 200 m at C3. Near C3 and W3, there were another two ...,