E = edge transit IE = inner edge transit TTC = transit through the center, center passes at 1,000 feet or less OE = outer edge transit PN = partial transit, an upwind event Types of records: more fully described in Section 3.3.2; the letter designators used are: M = record typical for station almost missed by surge N; & No = records typical for stations W, & Wo = characteristic Wahoo records U, & Ug = characteristic Umbrella records experiencing an edge transit Surge boundaries: These and other surge parameters are illustrated in Figure 3.63; the letter designators used are: B, = inner primary smooth boundary B, = outer primary smooth boundary _ Bg = outer secondary smooth boundary H = hypothetical surge center NOL = NOL smooth boundary P, = inner photo-boundary of primary surge Py = outer photo-boundary of primary surge S_ = outer photo-boundary of secondary surge X = photographic surge center Total surge: normalized dose cumulated over time indicated. Surge boundaries: photo-TOA and photo-TOC given for outer primary photo-boundary only; distance and time of closest approach of X given if <5,000 feet; rad-TOA = average of 38 and 100 percent of TOP; rad-TOC = time normalized rate curve drops below 10° r/hr; source center = distance of P, at TOP; length of tail calculated using official surface wind speed. Approach velocities: Photo-veiocities calculated for boundary indicated at specified distances greater than that at TOP. Rad-velocities calculated for rise from 5 to 100 percent of peak for models indicated, (see also Section A.3). Waterborne sources: Calculated water and foam movements for drifts and sets or radial ex- pansions indicated. Bomb-generated waves: Calculated as described in Section 2.3.2. 4. Boundary plot: distance of various surge boundaries shown as a function of time; normalized rate curve with logarithmic scale superimposed; calculated water and foam movements shown at bottom; values in brackets are read from dashed boundaries, which compensate for Burge disappearance (see text). AFT: A-frame: Aoc: ASEL: ASEL-GITR: Air filtration instrument, a device which collects a sequence of aerosol samples on a chemical filter (see Section 2.2.6). A simple pipe frame used to support lightweight hoisting eqtupment, usually mounted on the front of a vehicle. Always-open collector, a large tray for collection of fallout (see Section 2.2.6). Army Signal Engineering Laboratory, Ft. Monmouth, New Jersey. Army Signal Engineering Laboratory gamma-intensity-time recorder, an instrument developed at ASEL to measure high gamma dose rates; also called the AVR: background: Gustave I (see Section 2.2.3). Antisubmarine warfare, used in this report with the connotation that the weapons used are nuclear. A high-speed launch used for aviation rescue work. Normal radiation intensities of instrument readings due to natural causes or ball crusher: from uncontrolled sources not under study. A device used for detecting the bottom when placing deep anchors. The apparently fine liquid aerosol that moves outward rapidly from the subsiding column of water after detonation of an underwater nuclear device. The base TAR 418 ‘ mt base surge: WwW ASW: