What's the difference between bathymetric and bathymetry?

Bathymetric

Definition:

Example Sentences:

(1) This is the Royal Navy’s description of the vessel : Echo was launched at Appledore in Devon in 2002, and was designed to carry out a wide range of survey work, including support to submarine and amphibious operations, through the collection of oceanographic and bathymetric (analysis of the ocean, its salinity and sound profile) data.
(2) Analysis of the data by season, however, demonstrated statistically reliable associations of sighting positions with areas of low geomagnetic intensity and gradient in winter and fall, respectively, but no association of sighting positions with bathymetric parameters in any season.
(3) The possibility to use parasitological data for studying fish feeding pattern, peculiarities of their bathymetric distribution, migration routes, taxonomy, phylogenetic origin, and revealing the origin of marine basins and their ichthyofauna has been demonstrated.
(4) Scientists have also been contributing layers of information, including sea-surface temperatures, bathymetric data and images culled from research expeditions.

Definition:

Example Sentences:

(1) A few days later the search moves to an underwater phase, using an autonomous underwater vehicle and a bathymetry survey covering an area around 430 miles (692km) long and 50 miles (80km) wide.
(2) A few days later the search moves to an underwater phase , using an autonomous underwater vehicle and a bathymetry survey to establish how deep the ocean is in an area about 430 miles long and 50 miles wide.
(3) Although, so far, there has been only limited data collected about the sea floor, with just 10% of the habitat mapped at any useful scale for science, bathymetry experts said that the public's ability to "interact" with the oceans and gain better understanding, as well as see the evidence of global warming, could have quite an impact on perceptions.