White Sands Missile Range 2007 Urban Study: Data Processing  Volume DP-3 (Airflow Qualitative Assessment)

Report No. ARL-TR-4441
Authors: Gail Vaucher and Manuel Bustillos
Date/Pages: May 2008; 84 pages
Abstract: Urban toxic chemical releases pose a threat to the military and civilians. The White Sands Missile Range (WSMR) Urban Studies address two critical elements in diagnosing airborne hazard releases, namely, airflow (chemical distribution) and stability (chemical concentration). This document provides a qualitative assessment of seven airflow features targeted by the WSMR 2007 Urban Study (W07US). The W07US stability assessment is published separately. The features identified for verification and characterization include the Fetch Flow, Velocity Acceleration, Velocity Deficit, Cavity Flows, Canyon Flows, Leeside Corner Eddies, and Reattachment Zone. Feature definitions, frequency of occurrences/day, and field study statistics are presented. Case studies enrich the text with excellent examples of inter-feature attributes and the detailed temporal and spatial urban characteristics. Suggestions for future airflow analysis work are interwoven throughout the text. The conclusions and recommendations recap key findings and next step suggestions for the W07US airflow qualitative assessment.
Distribution: Approved for public release
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Last Update / Reviewed: May 1, 2008