Saija Saarni
Dados Biográficos
| ID | 5002175 |
|---|---|
| NOME | Saija Saarni |
| PRENOMES | Saija |
| SOBRENOME | Saarni |
| ASSINATURA | SAARNI S |
| AFILIAÇÕES | University of Turku |
| ORCID | 0000-0003-2050-3062 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 5 |
| TOTAL DE CITAÇÕES | 2 |
| TOTAL COMO AUTOR | 5 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2015 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 1 |
Varve record reveals rapid development of hypolimnetic anoxia in a Northern European lake resulting from urban activities
Human activities can significantly impact the environmental conditions of water bodies adjacent to urban areas. Maljalahti Bay, situated near the city of Kuopio at the northern end of Lake Kallavesi, has experienced numerous substantial, well-documented urban changes over the past centuries. We investigated the lake response to the influence of anthropogenic activities at Maljalahti through analysis of diatom assemblages and physical and geochemi…
Urbanization-driven Cladocera community shifts in the lake - a case study from Baltic region, Europe
Our research aimed to evaluate, how urbanization affects lake ecosystems and Cladocera in particular. For this purpose, we chose a small urban lake with a well-documented history. Lake Velnezers (located in Riga, Latvia) is currently surrounded by apartment building complexes. Construction works around this lake started in the 1950s and continued up until the 1970s. To investigate how the transition from forested to agricultural and further urban…
Varve Distribution Reveals Spatiotemporal Hypolimnetic Hypoxia Oscillations During the Past 200 Years in Lake Lehmilampi, Eastern Finland
We investigated 34 sediment cores to reconstruct spatiotemporal variations in hypolimnetic hypoxia for the past 200 years in Lehmilampi, a small lake in Eastern Finland. As hypoxia is essential for varve preservation, spatiotemporal changes in varve distribution were used as an indicator for hypolimnetic hypoxia oscillations. The hypoxic water volume was used as a variable reflecting hypolimnetic hypoxia and determined for each year by estimating…
Ultra-High-Resolution Monitoring of the Catchment Response to Changing Weather Conditions Using Online Sediment Trapping
The purpose of this study was to identify relationships between meteorological and hydrological observations and sediment flux rate changes, in order to better understand catchment dynamics. The meteorological and hydrological observations included local air temperature, wind speed, water temperature, and ice cover, while the sediment flux rate was observed in the lake basin using a modified sediment trap technique. This study demonstrates the ad…
Between the North Atlantic Oscillation and the Siberian High
Clastic-organic varved sediments from the boreal Lake Kalliojärvi, Central Finland, record changes in snow accumulation for more than 4000 years. The varve record was reconstructed using digital image analysis from 4132 varve yr BP to present with 2.2% counting error and is supported by paleomagnetic data. Two laminae are identified in a typical varve structure: (1) the minerogenic lamina, which accumulates during spring as a result of catchment …
Between the North Atlantic Oscillation and the Siberian High
Clastic-organic varved sediments from the boreal Lake Kalliojärvi, Central Finland, record changes in snow accumulation for more than 4000 years. The varve record was reconstructed using digital image analysis from 4132 varve yr BP to present with 2.2% counting error and is supported by paleomagnetic data. Two laminae are identified in a typical varve structure: (1) the minerogenic lamina, which accumulates during spring as a result of catchment …
Between the North Atlantic Oscillation and the Siberian High
Clastic-organic varved sediments from the boreal Lake Kalliojärvi, Central Finland, record changes in snow accumulation for more than 4000 years. The varve record was reconstructed using digital image analysis from 4132 varve yr BP to present with 2.2% counting error and is supported by paleomagnetic data. Two laminae are identified in a typical varve structure: (1) the minerogenic lamina, which accumulates during spring as a result of catchment …
Varve Distribution Reveals Spatiotemporal Hypolimnetic Hypoxia Oscillations During the Past 200 Years in Lake Lehmilampi, Eastern Finland
We investigated 34 sediment cores to reconstruct spatiotemporal variations in hypolimnetic hypoxia for the past 200 years in Lehmilampi, a small lake in Eastern Finland. As hypoxia is essential for varve preservation, spatiotemporal changes in varve distribution were used as an indicator for hypolimnetic hypoxia oscillations. The hypoxic water volume was used as a variable reflecting hypolimnetic hypoxia and determined for each year by estimating…
Ultra-High-Resolution Monitoring of the Catchment Response to Changing Weather Conditions Using Online Sediment Trapping
The purpose of this study was to identify relationships between meteorological and hydrological observations and sediment flux rate changes, in order to better understand catchment dynamics. The meteorological and hydrological observations included local air temperature, wind speed, water temperature, and ice cover, while the sediment flux rate was observed in the lake basin using a modified sediment trap technique. This study demonstrates the ad…
Urbanization-driven Cladocera community shifts in the lake - a case study from Baltic region, Europe
Our research aimed to evaluate, how urbanization affects lake ecosystems and Cladocera in particular. For this purpose, we chose a small urban lake with a well-documented history. Lake Velnezers (located in Riga, Latvia) is currently surrounded by apartment building complexes. Construction works around this lake started in the 1950s and continued up until the 1970s. To investigate how the transition from forested to agricultural and further urban…
Varve record reveals rapid development of hypolimnetic anoxia in a Northern European lake resulting from urban activities
Human activities can significantly impact the environmental conditions of water bodies adjacent to urban areas. Maljalahti Bay, situated near the city of Kuopio at the northern end of Lake Kallavesi, has experienced numerous substantial, well-documented urban changes over the past centuries. We investigated the lake response to the influence of anthropogenic activities at Maljalahti through analysis of diatom assemblages and physical and geochemi…
Geology (4 obras) · Geology and Paleoclimatology Research (4 obras) · Oceanography (4 obras) · Sediment (4 obras) · Varve (4 obras) · Aquatic Ecosystems and Phytoplankton Dynamics (3 obras) · Environmental Science (3 obras) · Geomorphology (3 obras) · Biology (2 obras) · Ecology (2 obras)