introduction the dust storms are one of the climatic hazards in the dry climates of the world. they cause many damages to the environment and humans. one of the aspects of a study to understand the origin of this phenomenon is the formation of foci in the recent years in the areas of research. it has been done in the central regions. the dust storms have gained global scale. this has demonstrat...

Mineral dust deposition is suggested to be a significant atmospheric supply pathway of bioavailable iron (Fe) to Fe-depleted surface oceans. In this study, mineral dust and dissolved Fe (Fed) deposition rates are predicted for March 2009 to February 2010 using the 3-D chemical transport model GEOS-Chem implemented with a comprehensive dust-Fe dissolution scheme. The model simulates Fed producti...

[1] Mineral dust plays an important role in ocean biogeochemistry as a source of Fe which in some regions is a limiting micronutrient. Ocean models often use the output of dust transport models to estimate dust‐Fe deposition. However, models have not been adequately tested, because of the dearth of long‐term dust deposition measurements. Here we present the results of a 3 year deposition study ...

We present a multiwavelength study of a sample of far-infrared (FIR) sources detected on the Herschel broad–band maps of the nearby galaxy M33. We perform source photometry on the FIR maps as well as mid-infrared (MIR), Hα, far-ultraviolet and integrated HI and CO line emission maps. By fitting MIR/FIR dust emission spectra, the source dust masses, temperatures and luminosities are inferred. Th...

1. introduction dust phenomenon which occurs in arid and semiarid lands of the world is closely related to climatic characteristics of the region. according to the world meteorological organization (wmo), whenever wind speed exceeds 15 meter per second and horizontal visibility reduces to less than 1 km in a station, dust storm is reported (goudie & mideleton, 2006). great storms are created wh...

Exploring the effects of drought and land use/land cover (LULC) on aeolian dust emission is important to enhance models account for anthropogenic surface change. Hitherto, there has been no systematic effort quantitatively estimate associations between LULC with number point sources as a surrogate both local global levels. Previously, we created dataset in southwestern United States (U.S.) duri...

mineral dust is produced from both natural and anthropogenic sources. dust aerosols can be transported over long distances in the atmosphere. they reduce the incident shortwave radiation to the surface by absorbing and scattering the solar radiation; thereby leading to a cooling effect at the surface and lower tropospheric temperature. on the other hand, by absorption and re-emission of longwav...