Accession Number : ADA476017


Title :   Estimations of Atmospheric Conditions for Input to the Radar Performance Surface


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Jr, Frank D Price


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a476017.pdf


Report Date : Dec 2007


Pagination or Media Count : 81


Abstract : This study addresses the support of non-acoustic ASW operations by timely atmospheric and ocean surface descriptions on features that impact radar and electro-optical sensor systems. The first part of this study is an analysis of meteorology and oceanography (METOC) data collected off Wallops Island, VA. A second part is a description of data and procedures applied in a Proof of Concept for a Radar Performance Surface developed and executed at NPS for the Pacific Fleet exercise Valiant Shield 2007 for periscope detection. In both field experiments NPS employed METOC instruments and personnel in theater to collect in situ truth data for the ocean and atmosphere. Evaluated are the sensitivities of the parameters that serve as the input to the performance surface. Surface parameters as predicted by the Navy s Coupled Ocean Atmosphere Mesoscale Prediction System (COAMPS ) are compared to in-situ data to assess the sensitivities of air-sea temperature differences and relative humidity errors on predictions of ducting, super and sub-refractive conditions. Addressed are atmospheric measurement techniques, use of climatology and numerical modeling as the input to the Radar Performance Surface. This study evaluates the degree of which mesoscale models can accurately predict the true predicted propagation conditions based on comparisons with in situ data. A statistical summary shows COAMPS data has sufficient skill when compared to in situ data.


Descriptors :   *RADAR , *ATMOSPHERICS , MATHEMATICAL MODELS , PROPAGATION , DETECTION , DETECTORS , WEATHER , ESTIMATES , ERRORS , OCEANS , OCEANOGRAPHY , HUMIDITY , ANTISUBMARINE WARFARE , PERISCOPES , CLIMATOLOGY , METEOROLOGY , SURFACES , IMPACT , ELECTROOPTICS , PERFORMANCE(ENGINEERING) , PARAMETERS , FIELD TESTS


Subject Categories : Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE