Electro-optical propagation assessment in coastal environments (EOPACE): Summary and accomplishments

EOPACE (electro-optical propagation assessment in coastal environments) was a 5-yr multinational and interdisciplinary effort to improve the performance assessment for electro-optical (EO) systems operating in coastal environments. The initial results of the EOPACE program include: (1) the parameterization of the surf-zone generated aerosol-size...

The vertical distribution of large aerosols in the marine atmospheric surface layer

Electro-optical propagation just above wave tops as predicted by ANAM, the Advanced Navy Aerosol Model

An extension of the Nary aerosol model (NAM), intended to describe aerosol size distributions from

Characterizing large aerosols in the lowest level of the marine atmosphere

This paper discusses techniques to describe the aerosol and the electro optical properties of the marine atmosphere from 15 meters down to the tops of the highest wave. Emphasis is placed on the experimental Rotorod technique to measure the concentrations of giant sea salt droplets. Data from these devices are parameterized using a lognormal...

An Extensive Analysis of Low-Level IR Transmission Measurements taken over a 15km Path during EOPACE with IRBLEM

Results of over 300 far IR and mid IR transmission measurements taken during several EOPACE intensive operational periods over the low-level 15 km transmission path across San Diego bay are presented. A thorough comparison with calculations obtained using simultaneously measured bulk meteorological parameters with the IR Boundary Layer Model,...

Atmospheric effects on low elevation transmission measurements at EOPACE

An analysis is presented showing the effects of refraction, aerosol extinction, and molecular extinction on transmission measurements obtained during the EO Propagation Assessment in Coastal Environments (EOPACE) campaign carried out in San Diego during March and April 1996. Infrared transmission measurements were made over both a 7 km path (mid...

Low Elevation Transmission Measurements at EOPACE Part I: Molecular and Aerosol Effects

An analysis is presented showing the effects of molecules and aerosols on atmospheric transmission data obtained during the Electro-Optical Propagation Assessment in Coastal Environments (EOPACE) campaign carried out in San Diego during March and April, 1996. Mid wave infrared transmission was measured over San Diego Bay along a 14.9 km path and...

The Naval Ocean Vertical Aerosol Model: Progress Report

The Naval Oceanic Vertical Aerosol Model (NOVAM) has been formulated to estimate the vertical structure of the optical and infrared extinction coefficients in the marine atmospheric boundary layer (MABL). NOVAM was designed to predict the non-uniform and non-logarithmic extinction profiles which are often observed. It is based on a combination...

The naval oceanic vertical aerosol model: progress report

Verification of the Naval Oceanic Vertical Aerosol Model During Fire

The Naval Oceanic Vertical Aerosol Model (NOVAM) has been formulated to estimate the vertical structure of the optical and infrared extinction coefficients in the marine atmospheric boundary layer (MABL), for waverengths between 0,2 and 40 um. NOVAM was designed to predict, utilizing a set of routinely available meteorological data, the non...

Physical models for aerosol in the marine mixed-layer

A model is presented to calculate the vertical variation of aerosol extinction coefficients throughout the marine atmospheric boundary layer. It is referred to as the Naval oceanic Vertical Àerosol Model (NOvAM). NOVAM is a combination of empirical and physical models, formulated to describe the often observed non-uniform, but also non...

Modeling of aerosols in the marine mixed-layer

A model is developed to calculate the vertical variation of aerosol extinction coefficients throughout the marine atmospheric boundary layer. It is a mixture of empirical and physical models, formulated to describe the often observed non-uniform, but also non-logarithmic, profiles. The physical model is based on the dynamical processes affecting...