Such maxima were too insignificant in size and rate of occurrence to affect the long-term radiance distributions. As is well Cobimetinib cell line known, an offshore wind induces coastal water upwelling that brings nutrients into the basin’s upper layer, thus creating conditions for the blooming of phytoplankton with a consequent increase in SPM content in the water. This succession of processes takes several days to produce an excessive sediment concentration. Our approach involves the use of radiance and wind data for one and the same YD, thanks to which the results of data processing cannot be contaminated by the consequences of wind-induced upwelling events, even though they actually did

take place. Uncorrected satellite images of the Caspian Sea show jet-like structures, which are regarded as carriers of dust from the Central Asian deserts. This dust fallout

can enhance Lwn estimates. The standard atmospheric correction algorithm of click here colour scanner missions removes the fallout effects from the normalized water-leaving radiance. The low and virtually constant Lwn just west of the testing area for any winds in our figures confirm the algorithm’s efficiency. So, there are no grounds for believing that the redistribution of radiance fields within the shallow for moderate winds from different directions was due to factors other than the wind-induced resuspension of bottom sediments. The close resemblance of the distributions

of red and shortwave radiances for winds of any direction, including the offshore wind, indicates that the resuspension mechanism fills the water column with resuspended particles up to the near-surface layer. The maximum estimates of radiance difference dLwnav(λ) for opposing winds gravitated towards the middle of the shallow with the most gentle bottom slope between the 10 and 15 m isobaths ( Figure 4). This and other facts Cell Cycle inhibitor point to the dependence of resuspension efficiency on the wind direction and to the non-uniform distribution of resuspension efficiency over the shallow under a steady wind. The issue of resuspension efficiency is a typical interdisciplinary problem that involves such lines of inquiry as mesoscale water dynamics, water density stratification, inherent optical properties of water, size spectrum and properties of particles of bottom sediments, the nature of the bottom substrate ranging from sand and mud to a canopy of macrophytes, the impact of bioturbation on the bottom sediments strength etc. This is beyond the scope of the present work. The published evidence, concerning the water dynamics, sedimentology, meteorology and other branches of oceanology for the southern Caspian Sea, is far from matching the long-term satellite observations in volume and regularity.