&lt;title&gt;Correlation between the aerosol profiles measurements, the meteorological conditions, and the atmospheric IR transmission in a mediterranean marine atmosphere&lt;/title&gt;

Tanguy, Mireille; Bonhommet, Herve; Autric, M.; Vigliano, P.

doi:10.1117/12.46559

Cited by 11 publications

(13 citation statements)

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“…6 NAM is mainly based on data collected prior to 1983. In general, NAM provides reasonable predictions for extinction over the open ocean, but in coastal regions they are often less reliable 9,10 when, in an off-shore wind, continental aerosols mix with the sea spray. Since NAM was developed from mainly open ocean data, the model cannot be expected to cover such situations.…”

Section: Introductionmentioning

confidence: 99%

Development of the Mediterranean extinction code (MEDEX)

et al. 2003

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Abstract. The performance of electro-optical systems can be substantially affected by aerosol particles that scatter and absorb electromagnetic radiation. The model that is most frequently used for the prediction of aerosols and their effect on extinction in the marine atmosphere is the US Navy Aerosol Model (NAM). However, NAM can be significantly less reliable in coastal areas than on the open ocean. Based on an extensive series of measurements conducted on the island of Inisheer (Irish West Coast), an empirical aerosol model for the coastal zone formulated as an extension of NAM, in which coastal effects are modeled as a function of fetch, has been developed. This work is extended to the Mediterranean using an aerosol dataset recorded on the island of Porquerolles in the Bay of Toulon (France) and has been coupled with the Mie theory to give a code for the extinction, the code MEDiterranean EXtinction (MEDEX).

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Section: Introductionmentioning

confidence: 99%

Development of the Mediterranean extinction code (MEDEX)

et al. 2003

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“…In modeling of atmospheric propagation empirical and semi-empirical models 1 commonly are used, which have been developed for maritime [2][3][4][5] and continental [6][7][8] aerosols. However they are inadequate for representing their effects in coastal zones, because they do not account for specific processes unique to this region [9][10][11] . Clouds and coastal aerosols, i.e., continental and surf generated aerosols, can greatly affect the performance of airborne forward looking infrared, search, and track systems operating within the coastal zone [12][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

“…MODTRAN includes the Navy Aerosol Model (NAM) 17 and the Naval Oceanic Vertical Aerosol Model (NOVAM) 18 . They provide reasonable predictions for extinction over the open ocean, but in coastal regions their reliability is less [19][20] when, due to offshore winds, continental aerosols become mixed with sea spray. Several investigators proposed an extension of the Navy Aerosol Model based on the analysis of an extensive series of measurements at the island of Inisheer (the Irish Atlantic Coast) 19 , and at the island of Porquerolles (the French Mediterranean Coast) 21 .…”

Section: Introductionmentioning

confidence: 99%

Aerosol models for Middle East coastal zones: a modified NAM model

Bendersky

Kopeika

Blaunstein

2004

Free-Space Laser Communication Technologies XVI

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Recently several investigators proposed an extension of the Navy Aerosol Model (NAM) based on analysis of an extensive series of measurements at the Irish Atlantic Coast and at the French Mediterranean Coast. This work extends NAM by use of a similar analysis using data collected at three different Middle East Coastal areas: the Negev Desert (Eilat) Red Sea Coast, the Sea of Galilee (Tiberias) Coast, and the Mediterranean (Haifa) Coast. Results of the aerosol size distribution are compared with those obtained through measurements carried out over the Atlantic Ocean and Mediterranean Coasts. An analysis of these different results allows a better understanding of the similarities and differences between different coastal and open ocean zones. Parameterization is introduced. The aerosol particle concentrations and their dependences on wind speed for these coastal zones are analyzed and discussed.

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“…6 show a remarkable agreement between MEDEX and the Black sea data, more particularly for larger wavelengths. The relative least performance of MEDEX at smaller wavelengths can be due to the usual difficulties for modeling the first mode of the aerosol spectrum (Tanguy et al, 1991). This could be one of the consequence of the role of the refractive index on the calculated aerosol extinction.…”

Section: Discussionmentioning

confidence: 99%

“…NAM is currently being upgraded to the Advanced Navy Aerosol Model (ANAM) developed by Gathman and Van Eijk (1998). Although NAM provides reasonable predictions for the extinction over the open ocean, experimental evidence shows that they are often less reliable in coastal regions (Piazzola, Van Eijk, & De Leeuw, 2000;Tanguy, Bonhommet, Autric, & Vigliano, 1991). To include coastal effects in the model for the prediction of aerosol concentrations, Piazzola et al (2000) proposed an extension of the NAM to coastal areas.…”

Section: Introductionmentioning

confidence: 99%