The front sides were concave with a deep vertical trough. A trough or catch basin is constructed below the weir. Embedded within southwesterly flow ahead of mid-latitude trough, the storm moved generally northeast. The deepest points of the sea lie in Cayman Trough with depths reaching approximately . This ridge flanks the Cayman Trough, deep which lies to the south. The storm then curved southeastward and then east-northeastward ahead of a deep-layer trough. Also, Kulap was located beneath a tropical upper tropospheric trough (TUTT cell) that caused subsidence. Breeding cages need a feed trough and a water trough. The advantage of this design above the parabolic trough design is the higher temperature. ABDSP lies in a unique geologic setting along the western margin of the Salton Trough. Conversely they can have difficulty waking up in the trough of the cycle. Winston soon degenerated into a trough over land. Everybody else was getting their snout in the British trough. The refrigerating fluid is sometimes also circulated in a jacket around the trough. Each peak is replaced by a trough and vice versa.