Dictionary

downtrace en · NOUN

Pronunciation

• (US) audio

Etymology

From down- + trace.

Meanings

1. The process of taking scientific samples as a probe is moving downward.
   • In using a command sampler there is a problem with whether to sample on the downtrace (shallow samples are taken down to deeper levels after collection and then brought back to the surface). 1973, National Research Council (U.S.). Ocean Science Committee, Continuously Sampled Oceanographic Data:
   • Theorizing that "noise" superimposed upon the downtrace might be the result of turbulent eddies or cavitation in the wake of the probe, we inverted the probe in its mount. 1971, Marine Technology Society Journal - Volume 5, page 22:
   • That the results are fairly accurate is shown by the uptrace and the downtrace being very similar. Still, when two instruments have been attached to the same balloon, the results are not absolutely in accord, either as regards temperature or pressure. 1911, Quarterly Report of the Meteorological Society of Scottland:
2. The set of subordinate units lower in the chain of command from a specified unit.
   • The 228th Signal Brigade (HHC), South Carolina National Guard, part of the 335th's command downtrace, was also not mobilized or deployed, despite its mission to provide area signal support to Third Army/ARCENT. 1992, JP Bird, Crossed Signals on the Battlefield:
   • With the better understaing of the Iraqi Brigade Commander's approach to battle-planning, the Irish MiTT worked at getting a general concept of the Commander's plan early in the planning process to share with the downtrace units so the Battalions would have greater opportunity to plan, rehearse, and resource their battle plans. 2010, Voris Weldon McBurnette, The 108th Training Command, →ISBN:
   • It is a six-phase, joint command post exercise for theater agencies, theater army units, a theater army area command and corps support command and their downtraces, corps troops, and other services equivalents. 1993, Army Logistician, page 28:
   • Shouldn't each CAPSTONE general officer command (GOCOM) be made a miniArmy Reserve command (ARCOM), with direct responsibility for training its USAR and active component downtrace (contingency chain of command)? 1988, Military Review, page 89:
3. The subtree of a tree structure that is determined by an attribute of a parent node.
   • For every single trace there is a downtrace with each individual degree being between 2 < |fif| < |v|, such that all possible combinations beneath the previously entailed degrees are generated by the function Ξ. 2010, Pablo Pirnay-Dummer, “Complete structure comparison”, in Computer-based diagnostics and systematic analysis of knowledge:
   • ΞA and ΞB are two downtraces […] from the two graphs. (Ξ_A ∩ Ξ_B) is the intersection between the two downtraces. 2010, Dirk Ifenthaler, Pablo Pirnay-Dummer, Norbert M. Seel, Computer-Based Diagnostics and Systematic Analysis of Knowledge, →ISBN:
   • The query algorithm mainly includes uptrace and downtrace methods. 2003, J Wu, Q Ding, “ATRAM-An Analysis Tool of Requirement and Architecture Management”, in Systems, Man and Cybernetics:
   • B2 processing occurs when the subtree is in the downtrace of an attribute in X. 1971, Jack Minker, Proceedingsof the Symposium on Information Storage and Retrieval, page 141:

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