Abstract: The metric is the ratio of maintenance craft workers to planners. This metric is used to measure the manpower planning work load of planners for comparison and benchmarking. This ratio identifies the level of work planning activities necessary to maintain a backlog of planned maintenance work.
Bathyal zone. The layers of the pelagic zone. The bathyal zone or bathypelagic â from Greek Î²Î±Î¸ÏÏ (bathÃ½s), deep â (also known as midnight zone) is the part of the pelagic zone that extends from a depth of 1000 to 4000 meters (3300 to 13000 feet) below the ocean surface. It lies between the mesopelagic above, and the abyssopelagic below.
The abyssal zone or abyssopelagic is a layer of the pelagic zone of the ocean. Abyss derives from the Greek word á¼Î²ÏÏÏÎ¿Ï, meaning bottomless. At depths of 4,000 to 6,000 metres (13,000 to 20,000 ft), this zone remains in perpetual darkness and never receives daylight. These regions are also characterised by continuous cold and lack of nutrients.The abyssal zone has temperatures around 2 to 3 Â°C (36 to 37 Â°F) through the large majority of its mass. It is the deeper part of the midnight zone which starts in the bathypelagic waters above.