نتایج جستجو برای: aerosol properties

تعداد نتایج: 893447  

2007
Thomas A. Jones Sundar A. Christopher

[1] One year (December 2003 to November 2004) of Terra Moderate Resolution Imaging Spectroradiometer (MODIS), Total Ozone Mapping Spectrometer (TOMS), and Measurement of Pollution in the Troposphere (MOPITT) data over the open ocean are used in conjunction with the Goddard Chemistry Transport Model (GOCART) to characterize differing aerosol types as a function of satellite observable parameters...

2014
B. Gantt J. He X. Zhang Y. Zhang A. Nenes

One of the greatest sources of uncertainty in the science of anthropogenic climate change is from aerosol– cloud interactions. The activation of aerosols into cloud droplets is a direct microphysical linkage between aerosols and clouds; parameterizations of this process link aerosol with cloud condensation nuclei (CCN) and the resulting indirect effects. Small differences between parameterizati...

2002
S. K. Satheesh V. Ramanathan B. N. Holben K. Krishna Moorthy N. G. Loeb H. Maring J. M. Prospero D. Savoie

[1] Extensive and long-term multistation measurements of aerosol properties and radiative fluxes were carried out in the haze plume off the South Asian continent. These experiments are carried out at Kaashidhoo Climate Observatory (KCO) (4.95 N, 73.5 E), Minicoy (8.5 N, 73.0 E), and Trivandrum (8.5 N, 77.0 E). In addition, the top of the atmosphere fluxes were measured simultaneously by the CER...

2015
Linlu Mei

Because of a long-term synergy with other observations from ENVISAT, there is advan-tage to derive aerosol optical thickness (AOT) using the MEdium Resolution Imaging Spectrometer (MERIS) instrument. Although limited in spectral coverage, it is possible to derive accurate AOT from MERIS. Here, we introduce a new AOT retrieval algorithm for MERIS over land surfaces, henceforth called eXtensible ...

Journal: :journal of arthropod-borne diseases 0
a abu bakar department of biomedical science, faculty of allied health sciences, university kebangsaan malaysia, jalan raja muda abdul aziz, 50300 kuala lumpur, malaysia s sulaiman department of biomedical science, faculty of allied health sciences, university kebangsaan malaysia, jalan raja muda abdul aziz, 50300 kuala lumpur, malaysia b omar department of biomedical science, faculty of allied health sciences, university kebangsaan malaysia, jalan raja muda abdul aziz, 50300 kuala lumpur, malaysia r mat ali forest research institute malaysia (frim), kepong, 52100 selangor, malaysia

background: melaleuca cajuputi essential oil in aerosol spray was evaluated against the dengue vectors aedes ae­gypti and ae. albopictus at low cost housing flats in section 10, setapak, kuala lumpur, malaysia. methods: essential oil in aerosol viz: 5% and 10% of concentrations were sprayed for 5 seconds each towards hung mos­quitoes in 5 cylindrical net cages. aerosol weights were recorded bef...

2007
Scott M. Spuler Shane D. Mayor

A multi-dimensional scanning lidar has been developed for tracking and monitoring aerosol plumes in urban settings. The reliability of the system has been demonstrated and plans for additional units are in place to create a unique scanning lidar network. The paper discusses the current capabilities of the instrument and research underway to extract more information, such as quantitative aerosol...

2007
L. W. Thomason S. P. Burton

Since 2000, stratospheric aerosol levels have been relatively stable and at the lowest levels observed in the historical record. Given the challenges of making satellite measurements of aerosol properties at these levels, we have performed a study of the sensitivity of the product to the major components of the processing algorithm used in the production of SAGE II aerosol extinction measuremen...

2002
A. D. Clarke S. Howell P. K. Quinn T. S. Bates J. A. Ogren E. Andrews A. Jefferson A. Massling O. Mayol-Bracero H. Maring D. Savoie G. Cass

[1] The Indian Ocean Experiment (INDOEX) measurements on land, sea, and in the air were designed to provide complementary assessment of chemical, physical, and optical properties of the haze aerosol over the Indian Ocean. Differences in platform requirements and objectives resulted in diverse techniques, measurements, and analyses being employed. In order to best interpret the properties of the...

2006
Toshihisa Matsui Hirohiko Masunaga Sonia M. Kreidenweis Roger A. Pielke Wei-Kuo Tao Mian Chin Yoram J. Kaufman

[1] This study examines variability in marine low cloud properties derived from semiglobal observations by the Tropical Rainfall Measuring Mission (TRMM) satellite, as linked to the aerosol index (AI) and lower-tropospheric stability (LTS). AI is derived from the Moderate Resolution Imaging Spectroradiometer (Terra MODIS) sensor and the Goddard Chemistry Aerosol Radiation and Transportation (GO...

2008
R. Posselt

Increased Cloud Condensation Nuclei (CCN) load due to anthropogenic activity might lead to non-precipitating clouds because the cloud drops become smaller (for a constant liquid water content) and, therefore, less efficient in rain formation (aerosol indirect effect). Adding giant CCN (GCCN) into such a cloud can initiate precipitation (namely, drizzle) and, therefore, might counteract the aero...

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