MODIS-based sea surface temperature of the Baltic Sea Curonian Lagoon

Kozlov, Igor E.; Dailidienė, Inga; Korosov, Anton; Klemas, V.; Mingelaitė, Toma

doi:10.1016/j.jmarsys.2012.05.011

Cited by 44 publications

(31 citation statements)

References 13 publications

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“…As Figure 2 shows, the largest discrepancies between these two are found in April and September. In April, this might be attributed to the fact that the background water temperature is relatively low during this month, = 6 °C (see, e.g., Figure 4 in the literature [27]), and, hence, the SST contrast between the ambient and upwelled waters is not well pronounced in the satellite data. A possible reason for missing CU events in September might be a deepening of the mixed layer as a result of the thermal convection and turbulent mixing during autumn [40], making it difficult to distinguish low intensity upwelling events in IR SST data.…”

Section: Satellite Observations Vs Coastal Measurementsmentioning

confidence: 92%

“…MODIS Level 2 daytime (MODIS thermal bands 31 (11 µ) and 32 (12 µ) images (L2_LAC_SST product)) covering the study site with a spatial resolution of about 1 km [25] were obtained from the NASA OceanColor website [26]. The validation of this product against in situ observations in the SE Baltic and the Curonian Lagoon carried out by the authors of [27] showed a very good correspondence between space-borne and conventional SST measurements, suggesting that MODIS-based SST retrievals can be further used to analyze SST development over the study region.…”

Section: Satellite Datamentioning

confidence: 99%

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Remote Sensing of Coastal Upwelling in the South-Eastern Baltic Sea: Statistical Properties and Implications for the Coastal Environment

et al. 2018

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A detailed study of wind-induced coastal upwelling (CU) in the south-eastern Baltic Sea is presented based on an analysis of multi-mission satellite data. Analysis of moderate resolution imaging spectroradiometer (MODIS) sea surface temperature (SST) maps acquired between April and September of 2000-2015 allowed for the identification of 69 CU events. The Ekman-based upwelling index (UI) was applied to evaluate the effectiveness of the satellite measurements for upwelling detection. It was found that satellite data enable the identification of 87% of UI-based upwelling events during May-August, hence, serving as an effective tool for CU detection in the Baltic Sea under relatively cloud-free summer conditions. It was also shown that upwelling-induced SST drops, and its spatial properties are larger than previously registered. During extreme upwelling events, an SST drop might reach 14 • C, covering a total area of nearly 16,000 km 2 . The evolution of an upwelling front during such intensive events is accompanied by the generation of transverse filaments extending up to 70 km offshore. An analysis of the satellite optical data shows a clear decline in the chlorophyll-a concentration in the coastal zone and in the shallow Curonian Lagoon, where it drops down by an order of magnitude. It was also shown that a cold upwelling front alters the stratification in the atmospheric boundary layer, leading to a sudden drop of air temperature and near-surface winds.upwelling fronts also importantly modifies the vertical stratification and turbulent regime in the marine-atmosphere boundary layer (MABL), resulting in a change in the surface wind stress and direction in the coastal zone [3,9].Nutrient-rich waters brought up from deeper layers to the surface, particularly in the summer time, and the exposure of upwelled phytoplankton to surface radiation enhances the primary production and phytoplankton biomass during upwelling events [10,11], hence influencing the coastal pelagic communities and higher trophic levels [12]. Moreover, upwelling-related coastal ocean dynamics may eventually modify the spatial patterns of background algae blooms in the coastal zone by transporting them farther offshore.During the summer-time holiday season, CU might also have a negative impact on particular tourist areas as a result of a rapid drop in water and air temperatures near the shore [2]. Furthermore, bathing tourism depends on good water quality, while post-upwelling phytoplankton blooms might significantly reduce it, making coastal waters unattractive for recreation [13].The need to study coastal upwelling in the Baltic Sea is also essential in order to assess the regional variability of water and energy exchange, salinity dynamics, and the response of marine ecosystems to extreme events-some of the "Grand Challenges" of the Baltic Earth Science Plan [14], established in 2016. Thus, the upwelling phenomenon is indeed of certain interest to researchers, fishermen, and coastal managers [15]. The availability of wide spatial and temporal co...

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Section: Satellite Observations Vs Coastal Measurementsmentioning

confidence: 92%

Section: Satellite Datamentioning

confidence: 99%

Remote Sensing of Coastal Upwelling in the South-Eastern Baltic Sea: Statistical Properties and Implications for the Coastal Environment

et al. 2018

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“…Other authors have attributed the observed differences to the presence and displacement of mesoscale structures like the Great Whirl [ Santos et al ., ]. Finally, other authors, [ Howden and Murtugudde , ; Vizy and Cook , ; Park et al ., ; Materia et al ., ] linked the presence of rivers, as well as the presence of transitional water bodies such as coastal lagoons [e.g., Kozlov et al ., ], to the different warming or cooling patterns found in some regions. For a full study on SST changes worldwide, the reader is referred to Lima and Wethey [], who detected that 71.6% of the world coastal locations have experienced a warming trend during the last three decades.…”

Section: Introductionmentioning

confidence: 99%

Modulation of sea surface temperature warming in the Bay of Biscay by Loire and Gironde Rivers

et al. 2016

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The influence of Loire and Gironde River discharges over the sea surface temperature (SST) in the eastern Bay of Biscay (0.6º–36.6ºW, 44.2º–47.8ºW) was analyzed by means of two complementary databases (MODIS and OISST1/4). The area influenced by river plume showed a different SST when compared with the adjacent oceanic area for the months when the plume attains its highest extension (December, January, and February). Ocean was observed to warm at a rate of approximately 0.3ºC dec−1 while temperature at the area influenced by the rivers cooled at a rate of −0.15ºC dec−1 over the period 1982–2014. The mere presence of a freshwater layer is able to modulate the warming observed at adjacent ocean locations since the coastal area is isolated from the rest of the Bay. This nearshore strip is the only part of the Bay where changes in SST depend on North Atlantic Oscillation (NAO) but not on North Atlantic SST represented by the Atlantic Multidecadal Oscillation (AMO). These different cooling‐warming trends are even more patent over the last years (2002–2014) under atmospheric favorable conditions for plume enhancement. River runoff increased at a rate on the order of 120 m3s−1dec−1 over that period and southwesterly winds, which favor the confinement of the plume, showed a positive and significant trend both in duration and intensity. Thus, the coastal strip has been observed to cool at a rate of −0.5°C dec−1.

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“…The salinity, temperature, nutrient and food particle gradients due to the vicinity of the Curronian lagoon (Kozlov et al 2014), may have influenced recruitment and growth of mussels on experimental units in our study. Strong influence of freshwater from the Curronian lagoon caused decrease of salinity during May in sites JM-15, JM-20 and LI-15.…”

Section: Number Of Larvae Vs Number Of Recruitsmentioning

confidence: 92%

“…The best feeding conditions for mussels could be expected in JM-15 and JM-20, as the Curronian lagoon creates a gradient of nutrients and phytoplankton (Kozlov et al 2014). However even temporal stratification restricts the water exchange between water layers, creating higher food availability in the upper water layer devoid of organisms able to profit, simultaneously decreasing the food availability for mussels below the thermocline.…”

Section: Number Of Larvae Vs Number Of Recruitsmentioning

confidence: 99%

Recruitment studies of the mussel Mytilus trossulus on artificial substrate near high energy shores of the north-eastern Baltic Sea

2017

EEB

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Ecological mussel farming in the Baltic Sea has gained attention due to ability of mussels to bind high concentrations of nitrogen and phosphorus in their tissues. Removal of mussels could serve as abatement of eutrophication. The Latvian coast of the Baltic Sea is one of the most exposed coastlines of the Baltic due to the highest wind and wave energy. Experimental units for mussel recruitment were placed in three locations at 15, 20 and 25 m depth assess the potential for mussel farming. The spawning maximum was observed in the middle of May, followed by recruitment in June. Recruitment of Mytilus was observed on all experimental units with higher densities at 6 to 10 m depth. Observations suggest that mussels can use artificial substrate for recruitment even near high energy shores. However, if mussel farming is to take place, submerged offshore farming techniques should be considered.

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MODIS-based sea surface temperature of the Baltic Sea Curonian Lagoon

Cited by 44 publications

References 13 publications

Remote Sensing of Coastal Upwelling in the South-Eastern Baltic Sea: Statistical Properties and Implications for the Coastal Environment

Remote Sensing of Coastal Upwelling in the South-Eastern Baltic Sea: Statistical Properties and Implications for the Coastal Environment

Modulation of sea surface temperature warming in the Bay of Biscay by Loire and Gironde Rivers

Recruitment studies of the mussel Mytilus trossulus on artificial substrate near high energy shores of the north-eastern Baltic Sea

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