@article{fdi:010061385,
  title = {{H}igh-resolution provenance of desert dust deposited on {M}t. {E}lbrus, {C}aucasus in 2009-2012 using snow pit and firn core records},
  author = {{K}utuzov, {S}. and {S}hahgedanova, {M}. and {M}ikhalenko, {V}. and {G}inot, {P}atrick and {L}avrentiev, {I}. and {K}emp, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he first record of dust deposition events on {M}t. {E}lbrus, {C}aucasus {M}ountains derived from a snow pit and a shallow firn core is presented for the 2009-2012 period. {A} combination of isotopic analysis, {SEVIRI} red-green-blue composite imagery, {MODIS} atmospheric optical depth fields derived using the {D}eep {B}lue algorithm, air mass trajectories derived using the {HYSPLIT} model and analyses of meteorological data enabled identification of dust source regions with high temporal (hours) and spatial (ca. 20-100 km) resolution. {S}eventeen dust deposition events were detected; fourteen occurred in {M}arch-{J}une, one in {F}ebruary and two in {O}ctober. {F}our events originated in the {S}ahara, predominantly in northeastern {L}ibya and eastern {A}lgeria. {T}hirteen events originated in the {M}iddle {E}ast, in the {S}yrian {D}esert and northern {M}esopotamia, from a mixture of natural and anthropogenic sources. {D}ust transportation from {S}ahara was associated with vigorous {S}aharan depressions, strong surface winds in the source region and mid-tropospheric southwesterly flow with daily winds speeds of 20-30 m s(-1) at 700 h{P}a level. {A}lthough these events were less frequent than those originating in the {M}iddle {E}ast, they resulted in higher dust concentrations in snow. {D}ust transportation from the {M}iddle {E}ast was associated with weaker depressions forming over the source region, high pressure centred over or extending towards the {C}aspian {S}ea and a weaker southerly or southeasterly flow towards the {C}aucasus {M}ountains with daily wind speeds of 12-18 m s(-1) at 700 h{P}a level. {H}igher concentrations of nitrates and ammonium characterised dust from the {M}iddle {E}ast deposited on {M}t. {E}lbrus in 2009 indicating contribution of anthropogenic sources. {T}he modal values of particle size distributions ranged between 1.98 mu m and 4.16 mu m. {M}ost samples were characterised by modal values of 2.0-2.8 mu m with an average of 2.6 mu m and there was no significant difference between dust from the {S}ahara and the {M}iddle {E}ast.},
  keywords = {{RUSSIE} ; {CAUCASE}},
  booktitle = {},
  journal = {{C}ryosphere},
  volume = {7},
  numero = {5},
  pages = {1481--1498},
  ISSN = {1994-0416},
  year = {2013},
  DOI = {10.5194/tc-7-1481-2013},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061385},
}