@article{fdi:010046009, title = {{I}nvestigations on {A}ral sea regressions from mirabilite deposits and remote sensing}, author = {{C}r{\'e}taux, {J}. {F}. and {L}{\'e}tolle, {R}. and {C}almant, {S}t{\'e}phane}, editor = {}, language = {{ENG}}, abstract = {{R}emote sensing techniques including radar ({T}opex/{P}oseidon, {J}ason-1 and {E}nvisat) and laser altimetry ({I}cesat), and moderate resolution spectro-radiometer ({MODIS}) images, are used to estimated current level and surface extent time variations of the {A}ral {S}ea. {D}uring the {H}olocene several phases of regression occurred, leading to desiccation of the {A}ral {S}ea. {D}uring the last 50 years, {A}ral {S}ea has drastically shrunk due to intense use of river's water for irrigation purposes. {I}t is currently separated into four distinct water bodies, namely, the {S}mall {A}ral in the {N}orth, the {T}chebas {B}ay in the {N}orth {W}est, and the {S}outh {W}est and the {S}outh {E}ast basins. {T}he {K}ulandy strait connected the {SW} and {SE} basins until very recent times. {T}hese basins are now almost separated and salinity becomes very high (140-180 g/l) in the {E}astern part. {R}ubanov discovered past deposits of mirabilite in the years 1970-1980. {W}e investigate the significance of these deposits in the light of current evolution of the four water bodies that constitute the heritage of {A}ral {S}ea contemporary desiccation. {U}sing remote sensing techniques, we have attempted to calculate the water balance of south {A}ral {S}ea during the last 3 years. {W}e conclude in strong probability that the {K}ulandy strait carries water most of the time from the {E}astern {B}asin to the {W}estern {B}asin. {W}e have demonstrated that it should have been the same process in the past to explain the {M}irabilite deposit, but unfortunately, due to recent artificial water monitoring of the {A}ral {S}ea (dam in the {B}erg's strait, new reservoirs in the {A}mu {D}arya's delta), it is impossible to make definitive conclusion from actual {A}ral {S}ea water balance.}, keywords = {{M}irabilite ; {A}ral {S}ea ; {A}ltimetry ; {R}egressions}, booktitle = {}, journal = {{A}quatic {G}eochemistry}, volume = {15}, numero = {1-2}, pages = {277--291}, ISSN = {1380-6165}, year = {2009}, DOI = {10.1007/s10498-008-9051-2}, URL = {https://www.documentation.ird.fr/hor/fdi:010046009}, }