Document Details
Title:
RAINOUT ASSESSMENT: THE ACRA SYSTEM AND SUMMARIES OF SIMULATION RESULTS
Author(s):
Document Location:
Location - DOE/NNSA NUCLEAR TESTING ARCHIVE Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - NTA@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1977 Sep 30
Declassification Status:
Never classified
Document Pages:
0121
Accession Number:
NV0015883
Document Number(s):
LA6763
Originating Research Org.:
LOS ALAMOS SCIENTIFIC LABORATORY
OpenNet Entry Date:
1994 Aug 26
OpenNet Modified Date:
2003 Sep 18
Description/Abstract:
A GENERALIZED, THREE-DIMENSIONAL, INTEGRATED COMPUTER CODE SYSTEM WAS DEVELOPED TO ESTIMATE COLLATERAL-DAMAGE THREATS FROM PRECIPITATION-SCA VENGING ("RAINOUT") OF AIRBORNE DEBRIS-CLOUDS FROM DEFENSIVE TATICAL N UCLEAR ENGAGEMENTS. THIS CODE SYSTEM, CALLED ACRA FOR ATMOSPHERIC-CONT AMINANT RAINOUT ASSESSMENT, IS BASED ON MONTE CARLO STATISTICAL SIMULA TION METHODS THAT ALLOW RELISTIC, UNBIASED SIMULATIONS OF PROBABILISTI C STORM, WIND, AND PRECIPITATION FIELDS THAT DETERMINE ACTUAL MAGNITUD ES AND PROBABILITIES OF RAINOUT THREATS. DETAILED MODELS (OR DATA BASE S) ARE INCLUDED FOR SYNOPTIC-SCALE STORM AND WIND FIELDS; DEBRIS TRANS PORT AND DISPERSAL (WITH THE ROLES OF COMPLEX FLOW FIELDS, TIME- DEPENDENT DIFFUSION, AND MULTIDIMENSIONAL SHEAR EFFECTS ACCOUNTED FOR AUTOMATICALLY); MICROSCOPIC DEBRIS-PRECIPITATION INTERACTIONS AND SCAV ENGING PROBABILITIES; AIR-TO-GROUND DEBRIS TRANSPORT; LOCAL DEMOGRAPHI C FEATURES, FOR ASSESSING ACTUAL THREATS TO POPULATIONS; AND NONLINEAR EFFECTS ACCUMULATIONS FROM MULTISHOT SCENARIOS. SEVERAL HUNDRED REPRE SENTATIVE SHOTS WERE SIMULATED FOR WESTERN EUROPEAN SCENARIOS AND CLIM ATES TO STUDY SINGLE-SHOT AND MULTISHOT SENSTIVITIES OF RAINOUT EFFECT S TO VARIATIONS IN PERTINENT PHYSICAL VARIABLES.