Sea level fluctuation and shoreline evolution on decadal time scale, Lithuanian Baltic Sea coast

Jarmalavičius, Darius; Pupienis, Donatas; Žilinskas, Gintautas

doi:10.2112/si70-028.1

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…An analysis of multiannual weather parameters from the Nida meteorolog- The storms influence extreme values of sea and lagoon level when the water level raised higher than 100 cm above mean water level. In the end of the 20th century strong storms were more frequent than in the middle of the century, which resulted in a higher water level in the Curonian Lagoon (Dai- Jarmalavičius et al, 2014Jarmalavičius et al, , 2016. The raised water washed the foot and of the dunes and destabilized middle part of slopes.…”

Section: Climatic Factorsmentioning

confidence: 99%

Intensity of geodynamic processes in the Lithuanian part of the Curonian Spit

et al. 2017

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Abstract. The paper considers conditions and intensity of aeolian and dune slope transformation processes occurring in the wind-blown sand strips of the dunes of the Curonian Spit. An assessment of the intensity of aeolian processes was made based on the analysis of climatic factors and in situ observations. Transformations in aeolian relief forms were investigated based on the comparison of geodetic measurements and measurements of aerial photographs. Changes in micro-terraces of dune slopes were investigated through comparison of the results of repeated levelling and measurements of aerial photographs. The periods of weak, medium, and strong winds were distinguished, and sand moisture fluctuations affecting the beginning of aeolian processes were investigated. The wind-blown sand movements were found to start when sand moisture decreased by 2 % in the surface sand layer and by up to 5 % at a depth of 10 cm. In 2004-2016, the wind-blown sand movements affected the size of reference deflation relief forms: scarp length by 8 %, scarp width by 35 %, pothole length by 80 %, pothole width by 80 %, roll length by 17 %, roll width by 18 %, hollow length by 17 %, and hollow width by 39 %. The elementary relief forms in the leeward eastern slopes of the dunes experienced the strongest transformations. During a period of 5 months, the height of micro-terraces of the eastern slope of the Parnidis Dune changed from 0.05 to 0.64 cm. The change was related to fluctuations in precipitation intensity: in JulyAugust 2016 the amount of precipitation increased 1.6-fold compared with the multiannual average, thus causing the change in the position of terrace ledges by 21 %.

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Section: Climatic Factorsmentioning

confidence: 99%