A radical shift from soft-water to hard-water lake: palaeolimnologicalevidence from Lake Kooraste Kõverjärv, southern EstoniaAlliksaar, Tiiu; Heinsalu, AtkoEstonian journal of earth sciences2012 / p. 317-327 : ill Analysis of pore water dissolved organic matter by UV-spectroscopy and spectral fluorescence signatures technologyMakarõtševa, Natalja; Lepane, Viia; Alliksaar, Tiiu; Tõnno, IlmarFrom Molecular Understanding to Innovative Applications of Humic Substances : proceedings of the 14th International Meeting of the International Humic Substances Society : September 14-19, 2008, Moscow-Saint Petersburg, Russia. Volume 12008 / p. 269-272 : ill Application of lake sediment carbon/nitrogen ratio in post-glacial paleoenvironmental reconstruction = Järvesetete orgaanilise aine süsiniku ja lämmastiku suhte kasutusvõimalused pärastjääaegsete keskkonnamuutuste rekonstrueerimiselLiiv, Merlin2018 https://digi.lib.ttu.ee/i/?11143 Changes in heavy metal concentrations in the sediments of the Gulf of Finland over two decadesVallius, Henry; Alliksaar, Tiiu; Suuroja, StenEstonian journal of earth sciences2022 / p. 177-188 : ill https://doi.org/10.3176/earth.2022.12 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Chemical analysis of temporal changes in the structure and quantity of organic biomolecules of lake sedimentsLepane, Viia; Makarõtševa, Natalja; Viitak, Anu; Alliksaar, TiiuInternational Humic Substances Society 11th Nordic-Baltic Symposium. Functioning of NOM in the Environment : Joensuu, Finland, June 10-13 : abstracts2007 / p. 42 A comparison of the palaeolimnology of Peipsi and Võrtsjärv: connected shallow lakes in north-eastern Europe for the twentieth century, especially in relation to eutrophication progression and water-level fluctuationsLeeben, Aina; Freiberg, Rene; Tõnno, Ilmar; Kõiv, Toomas; Alliksaar, Tiiu; Heinsalu, AtkoHydrobiologia2013 / p. 227-240 : ill https://doi.org/10.1007/s10750-012-1209-7 Contrasting responses to long-term climate change of carbon flows to benthic consumers in two different sized lakes in the Baltic areaFreiberg, Rene; Belle, Simon; Poska, Anneli; Agasild, Helen; Alliksaar, Tiiu; Tõnno, IlmarQuaternary science reviews2018 / p. 168-176 : ill https://doi.org/10.1016/j.quascirev.2018.03.027 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Detection of the Askja AD 1875 cryptotephra in Latvia, Eastern EuropeStivrinš, Normunds; Wulf, Sabine; Alliksaar, Tiiu; Heinsalu, Atko; Veski, SiimJournal of quaternary science2016 / p. 437-441 : ill http://dx.doi.org/10.1002/jqs.2868 Development of large shallow Lake Peipsi (North-Eastern Europe) over the Holocene based on the stratigraphy of phosphorus fractionsKisand, Anu; Kirsi, Anna-Liisa; Ehapalu, Kristiina; Alliksaar, Tiiu; Heinsalu, Atko; Tõnno, Ilmar; Leeben, Aina; Nõges, PeeterJournal of paleolimnology2017 / p. 43-56 : ill https://doi.org/10.1007/s10933-017-9954-2 Drastic changes in lake ecosystem development as a consequence of flax retting: a multiproxy palaeolimnological study of Lake Kooraste Linajärv, EstoniaLiiv, Merlin; Alliksaar, Tiiu; Freiberg, Rene; Heinsalu, Atko; Ott, Ingmar; Reitalu, Triin; Tõnno, Ilmar; Vassiljev, Jüri; Veski, SiimVegetation history and archaeobotany2018 / p. 437-451 : ill https://doi.org/10.1007/s00334-017-0650-y Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Drivers of change and ecosystem status in a temperate lake over the last Post-Glacial period from 14.5 kyr [Online resource]Tõnno, Ilmar; Freiberg, Rene; Talas, Liisi; Kisand, Anu; Belle, Simon; Stivrinš, Normunds; Alliksaar, Tiiu; Heinsalu, Atko; Veski, Siim; Kisand, VeljobioRxiv2020 / 26 p. : ill https://doi.org/10.1101/2020.03.27.011502 Drivers of peat accumulation rate in a raised bog : impact of drainage, climate, and local vegetation compositionStivrinš, Normunds; Ozola, I.; Galka, Mariusz; Kuske, E.; Alliksaar, Tiiu; Andersen, T. J.; Lamentowicz, M.; Wulf, Sabine; Reitalu, TriinMires and peat2017 / art. 8, p. 1-19 : ill http://dx.doi.org/10.19189/MaP.2016.OMB.262 Dynamics of phytoplankton pigments in water and surface sediments of a large shallow lakeFreiberg, Rene; Nõmm, Monika; Tõnno, Ilmar; Alliksaar, Tiiu; Nõges, Tiina; Kisand, AnuEstonian journal of earth sciences2011 / 2, p. 91-101 : ill https://artiklid.elnet.ee/record=b2414184*est Ecosystem changes in large and shallow Võrtsjärv, a lake in Estonia - evidence from sediment pigments and phosphorus fractionsTõnno, Ilmar; Kirsi, Anna-Liisa; Freiberg, Rene; Alliksaar, Tiiu; Lepane, Viia; Kõiv, Toomas; Kisand, Anu; Heinsalu, AtkoBoreal environment research2013 / p. 195-208 : ill Environmental drivers and abrupt changes of phytoplankton community in temperate lake Lielais Svētiņu, Eastern Latvia, over the last Post-Glacial period from 14.5 kyrTõnno, Ilmar; Talas, Liisi; Freiberg, Rene; Kisand, Anu; Belle, Simon; Stivrinš, Normunds; Alliksaar, Tiiu; Heinsalu, Atko; Veski, Siim; Kisand, VeljoQuaternary science reviews2021 / art. 107006 https://doi.org/10.1016/j.quascirev.2021.107006 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Eutrofeerumist põhjustavatest elementidest ja uraanist Soome lahe põhjasetetesPetersell, Valter; Karimov, Mark; Nirgi, Siim; Štokalenko, Mihkel; Alliksaar, Tiiu; Pajusaar, Siim; Voolma, Margus; Liiv, MerlinXXIV aprillikonverents "Maapõuekasutus ja keskkonnahoid" : teesid2016 / lk. 35-37 : ill Fluorescence spectroscopy of sedimentary pore-water humic substances : a simple tool for retrospective analysis of lake ecosystemsLeeben, Aina; Mikomägi, Annika; Lepane, Viia; Alliksaar, TiiuJournal of soils and sediments2014 / p. 269-279 : ill https://doi.org/10.1007/s11368-013-0768-1 From bog to fen : palaeoecological reconstruction of the development of a calcareous spring fen on Saaremaa, EstoniaBlaus, Ansis; Reitalu, Triin; Amon, Leeli; Vassiljev, Jüri; Alliksaar, Tiiu; Veski, SiimVegetation history and archaeobotany2020 / p. 373–391 : ill https://doi.org/10.1007/s00334-019-00748-z Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS From microbial eukaryotes to metazoan vertebrates : Wide spectrum paleo‐diversity in sedimentary ancient DNA over the last ~14,500 yearsKisand, Veljo; Talas, Liisi; Kisand, Anu; Stivrinš, Normunds; Reitalu, Triin; Alliksaar, Tiiu; Vassiljev, Jüri; Liiv, Merlin; Heinsalu, Atko; Seppä, Heikki; Veski, SiimGeobiology2018 / p. 628-639 : ill https://doi.org/10.1111/gbi.12307 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Geological maps of the Gulf of Finland sea bottom as a basis for assessing the state of marine environmentSuuroja, Sten; Kask, Andres; Petersell, Valter; Alliksaar, Tiiu; Lips, Urmas; Lepland, AivoThe 13th Colloquium on Baltic Sea Marine Geology : September 12-16, 2016, Gdansk, Poland : abstract volume & field trip guidebook2016 / p. 75 https://www.pgi.gov.pl/dokumenty-pig-pib-all/publikacje-2/materialy-konferencyjne/4007-baltic-2016/file.html High-resolution spectroscopic study of pore-water dissolved organic matter in Holocene sediments of Lake Peipsi (Estonia/Russia)Leeben, Aina; Heinsalu, Atko; Alliksaar, Tiiu; Vassiljev, JüriHydrobiologia2010 / p. 21-31 https://doi.org/10.1007/s10750-010-0174-2 Hinnangu andmine merekeskkonna ökosüsteemipõhiseks korraldamiseks Soome lahe merepõhja ja setete näitel : (SedGoF) : projekti aruanneSuuroja, Sten; Heinsalu, Atko; Alliksaar, Tiiu; Lips, Urmas; Pajusaar, Siim; Liiv, Merlin; Buschmann, Fred; Erm, Ants; Kiipli, Tarmo; Kallaste, Toivo2016 https://www.kik.ee/sites/default/files/uuringud/aruanne_sedgof_30.06.2016_0.pdf History of anthropogenically mediated eutrophication of Lake Peipsi as revealed by the stratigraphy of fossil pigments and molecular size fractions of pore-water dissolved organic matterLeeben, Aina; Tõnno, Ilmar; Freiberg, Rene; Lepane, Viia; Bonningues, Nicolas; Makarõtševa, Natalja; Heinsalu, Atko; Alliksaar, TiiuHydrobiologia2008 / p. 49-58 : ill https://doi.org/10.1007/978-1-4020-8379-2_6 History of anthropogenically mediated eutrophication of Lake Peipsi as revealed from constituents of sedimentary organic matterLeeben, Aina; Alliksaar, Tiiu; Bonningues, Nicolas; Freiberg, R.; Heinsalu, Atko; Lepane, Viia; Makarõtševa, Natalja; Tõnno, IlmarEuropean Large Lakes Symposium : Ecosystem Changes and their Ecological and Socioeconomic Impacts : September 11-15, 2006, Tartu, Estonia : programme and abstracts2006 / p. 24 Holocene shifts in the primary producer community of large, shallow European Lake Peipsi, inferred from sediment pigment analysisTõnno, Ilmar; Nauts, Kristiina; Belle, Simon; Alliksaar, TiiuJournal of paleolimnology2019 / p. 403–417 : ill https://doi.org/10.1007/s10933-019-00067-3 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS HPLC approach for elucidating age-related changes of aquatic dissolved organic matter in sediment coreLepane, Viia; Tõnno, Ilmar; Alliksaar, TiiuNoSSS2009 : 5th Conference on Separation and Related Techniques by Nordic Separation Science Society : 26-29 August, 2009, Tallinn University of Technology, Estonia : abstract book and program2009 / p. 110 HPLC approach for revealing age-related changes of aquatic dissolved organic matter in sediment coreLepane, Viia; Tõnno, Ilmar; Alliksaar, TiiuProcedia chemistry2010 / p. 101-108 : ill https://www.sciencedirect.com/science/article/pii/S1876619609004124 Laborid ja muu teadusvarustus : [TTÜ Geoloogia Instituudi]Aaloe, Aasa; Kaljo, Dimitri; Kaup, Enn; Martma, Tõnu; Vassiljev, Jüri; Molodkov, Anatoli; Hints, Olle; Verš, Evelin; Voolma, Margus; Urtson, Kristjan; Männik, Peep; Alliksaar, TiiuGeoloogia instituudi kuuskümmend viis aastat : loomine ja muutumised, inimesed ja teadus, meenutused ja suundumused2012 / lk. 65-80 : fot Late glacial and early Holocene climate and environmental changes in the eastern Baltic area inferred from sediment C/N ratioLiiv, Merlin; Alliksaar, Tiiu; Amon, Leeli; Freiberg, Rene; Heinsalu, Atko; Reitalu, Triin; Saarse, Leili; Seppä, Heikki; Stivrinš, Normunds; Tõnno, Ilmar; Vassiljev, Jüri; Veski, SiimJournal of paleolimnology2019 / p. 1–16 : ill https://doi.org/10.1007/s10933-018-0041-0 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Molecular components of dissolved organic matter distinguished by optical properties and HPLC in the sediments of Lake Tõugjärv, Southern EstoniaLepane, Viia; Makarõtševa, Natalja; Alliksaar, TiiuGeophysical research abstracts2009 / p. 12450 https://meetingorganizer.copernicus.org/EGU2009/EGU2009-12450.pdf Molecular size distribution of metal complexes with pore water dissolved organic matter determined by HPSEC and ICP-MSMakarõtševa, Natalja; 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Vol. 32010 / p. 118-119 : ill Multimethod analysis of organic constituents and selected metals in lake sediments and interstitial waterLepane, Viia; Makarõtševa, Natalja; Viitak, Anu; Alliksaar, Tiiu; Havel, J.Euroanalysis XIV : Antwerp (Belgium), 9-14 September 2007 : book of abstracts2007 / p. 112 Natural versus anthropogenic accumulation of organic matter - a palaeolimnological evidence from a small stratified lake in southern EstoniaAlliksaar, Tiiu; Heinsalu, Atko; Leeben, Aina12th Nordic-Baltic IHSS Symposium on Natural Organic Matter in Environment and Technology : Tallinn, Estonia, June 14-17, 2009 : program and abstracts2009 / p. 52 Palaeolimnological assessment of environmental change over the last two centuries in oligotrophic Lake Nohipalu Valgjärv, southern EstoniaHeinsalu, Atko; Alliksaar, TiiuEstonian journal of earth sciences2009 / 2, p. 124-132 : ill https://artiklid.elnet.ee/record=b1477225*est Palaeolimnological assessment of the reference conditions and ecological status of lakes in Estonia - implications for the European Union Water Framework DirectiveHeinsalu, Atko; Alliksaar, TiiuEstonian journal of earth sciences2009 / 4, p. 334-341 : ill https://artiklid.elnet.ee/record=b1944678*est Partition of trace metals between inorganic and organic matter fractions in sediment record from Lake PeipsiLepane, Viia; Morriset, Malvina; Viitak, Anu; Laane, Maile; Alliksaar, Tiiu12th Nordic-Baltic IHSS Symposium on Natural Organic Matter in Environment and Technology : Tallinn, Estonia, June 14-17, 2009 : program and abstracts2009 / p. 73 Partitioning of metals between operational fractions in the sediment record from Lake PeipsiLepane, Viia; Morriset, Malvina; Viitak, Anu; Laane, Maile; Alliksaar, TiiuChemistry and ecology2010 / Suppl., p. 35-48 : ill https://doi.org/10.1080/02757540.2010.501031 Pb-210 and fly ash particles in ombrotrophic peat bogs as indicators of industrial emissionsVaasma, Taavi; Karu, Helen; Kiisk, Madis; Alliksaar, TiiuJournal of environmental radioactivity2017 / p. 78-86 : ill https://doi.org/10.1016/j.jenvrad.2016.07.027 Postglacial flooding and vegetation history on the Ob River terrace, central Western Siberia based on the palaeoecological record from Lake SvetlenkoyeAmon, Leeli; Blaus, Ansis; Alliksaar, Tiiu; Heinsalu, Atko; Lapshina, Elena; Liiv, Merlin; Reitalu, Triin; Vassiljev, Jüri; Veski, SiimThe Holocene2020 / p. 618–631 https://doi.org/10.1177/0959683619895582 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Reading past landscapes: combining modern and historical records, maps, pollen-based vegetation reconstructions, and the socioeconomic backgroundPoska, Anneli; Väli, Vivika; Tomson, Pille; Vassiljev, Jüri; Kihno, Kersti; Alliksaar, Tiiu; Villoslada, Miguel; Saarse, Leili; Sepp, KalevLandscape ecology2018 / p. 529–546 : ill https://doi.org/10.1007/s10980-018-0615-2 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Reconstruction of organic carbon sources in the palaeoenvironment of a lake : an optical approachLeeben, Aina; Alliksaar, Tiiu; Heinsalu, Atko; Lepane, Viia; Salujõe, Jaana; Veski, SiimThe 23rd International Meeting on Organic Geochemistry (IMOG2007) : Torquay, England, 9-14 September 20072007 / p. 1051-1052 Sediment diatom assemblages and composition of pore-water dissolved organic matter reflect recent eutrophication history of Lake Peipsi (Estonia/Russia)Heinsalu, Atko; Alliksaar, Tiiu; Leeben, Aina; Nõges, TiinaHydrobiologia2007 / p. 133-143 : ill https://doi.org/10.1007/s10750-007-8615-2 Sediment diatom assemblages and composition of pore-water dissolved organic matter reflect recent eutrophication history of lake peipsi (Estonia/Russia)Heinsalu, Atko; Alliksaar, Tiiu; Leeben, Aina; Nõges, TiinaShallow Lakes in a Changing World : Proceedings of the 5th International Symposium on Shallow Lakes, held at Dalfsen, The Netherlands, 5–9 June 20052007 / p. 133-143 : ill https://doi.org/10.1007/978-1-4020-6399-2_13 Sediment quality in Estonian western Gulf of Finland - with reference to the northern Gulf of FinlandVallius, H.; Suuroja, Sten; Petersell, Valter; Alliksaar, TiiuThe 11th Baltic Sea Science Congress "Living Along Gradients : Past, Present, Future" : June 12-16, 2017 : abstracts2017 / p. 109 https://www.io-warnemuende.de/tl_files/conference/bssc2017/bssc2017-abstract-book.pdf Sediment quality in Estonian western Gulf of Finland [Online resource]Vallius, Henry; Suuroja, Sten; Petersell, Valter; Alliksaar, TiiuFrom small scales to large scales - The Gulf of Finland Science Days 2017, 9th-10th October 2017, Estonian Academy of Sciences, Tallinn : Oral presentations2017 / p. 44 https://www.etis.ee/File/DownloadPublic/ebda3e4a-2eb0-4f26-971f-f16046bc0bed?name=TheGulfOfFinlandScienceDays_2017.pdf&type=application%2Fpdf Sedimentary carbon forms in relation to climate and phytoplankton biomass in a large, shallow, hard-water boreal lakeEhapalu, Kristiina; Tõnno, Ilmar; Reitalu, Triin; Alliksaar, Tiiu; Liiv, Merlin; Freiberg, Rene; Nõges, PeeterJournal of paleolimnology2017 / p. 81-93 : ill https://doi.org/10.1007/s10933-016-9931-1 Sedimentary record of heavy metals in Lake Rõuge Liinjärv, southern EstoniaLepane, Viia; Varvas, Mart; Viitak, Anu; Alliksaar, Tiiu; Heinsalu, AtkoEstonian journal of earth sciences2007 / 4, p. 221-232 : ill Similar and different features in the palaeolimnology of two connected shallow large lakes over the last 100 years (north-eastern Europe)Leeben, Aina; Alliksaar, Tiiu; Heinsalu, Atko; Freiberg, Rene; Lepane, Viia; Tõnno, IlmarThe 7th International Shallow Lake Conference : Conservation, Management and Restoration of Shallow Lake Ecosystems Facing Multiple Stressors : Wuxi, China, April 24-28 : programs and abstracts2011 / p. 115-116 Soome lahe keskkonnaseisundi hinnang lähtuvalt merepõhja setetestSuuroja, Sten; Kask, Andres; Petersell, Valter; Karimov, Mark; Alliksaar, Tiiu; Tõnisson, Hannes; Lips, Urmas; Lepland, AivoXXIII aprillikonverents "Eesti maapõue strateegiast" : teesid2015 / lk. 30-32 : ill Soome lahe merepõhja geoloogilised kaardid merekeskkonna seisundi hindamiseksSuuroja, Sten; Kask, Andres; Petersell, Valter; Karimov, Mark; Alliksaar, Tiiu; Tõnisson, Hannes; Lips, Urmas; Lepland, AivoXXIV aprillikonverents "Maapõuekasutus ja keskkonnahoid" : teesid2016 / lk. 46-47 : ill Spectroscopic analysis of chromatographically separated molecular fractions of sedimentary dissolved organic matterLepane, Viia; Hinnov, Mariann; Tõnno, Ilmar; Alliksaar, TiiuGeophysical research abstracts2008 / [2] p Spherical fly ash particles from oil shale fired power plants in atmospheric precipitations. Possibilities of quantitative tracingKaasik, M.; Alliksaar, Tiiu; Ivask, Jüri; Loosaar, JüriOil shale2005 / 4S, p. 547-561 Structural analysis of sediments from Lake Peipsi, Estonia, by FTIR and Py-GC/MSMakarõtševa, Natalja; Bikovens, O.; Alliksaar, Tiiu; Lepane, ViiaProgramme and Abstracts : 13th Nordic-Baltic IHSS Symposium. The role of natural organic matter in the environment : Oskarsborg, Norway, June 19-22, 20112011 / p. 30 Temporal changes in the sediment pollution of the Gulf of Finland [Online resource]Heinsalu, Atko; Alliksaar, TiiuBaltic Earth Workshop on multiple drivers for Earth system changes in the Baltic Sea region : Tallinn University of Technology, Tallinn, Estonia 26-27 November 2018 : [programme, abstracts, participants]2018 / p. 28 https://www.baltic-earth.eu/publications/IBESPublications/No_14_Workshop_Multiple_Drivers_Tallinn_Nov2018/No.14_Tallinn2018.pdf A 10000 year record of sediment porewater dissolved organic matter characteristics from Lake Peipsi as revealed by HPSECMakarõtševa, Natalja; Lepane, Viia; Alliksaar, Tiiu; Heinsalu, AtkoChemistry and ecology2010 / Suppl., p. 13-24 :ill The n-alkane composition of the Late-glacial lake sediments from eastern Baltic correlates with paleoclimatic episodesAmon, Leeli; Veski, Siim; Liiv, Merlin; Alliksaar, Tiiu; Vassiljev, Jüri; Sachse, DirkGeophysical Research Abstracts2018 / p. EGU2018-16115-1 https://meetingorganizer.copernicus.org/EGU2018/EGU2018-16115-1.pdf http://adsabs.harvard.edu/abs/2018EGUGA..2016115A Timing and drivers of local to regional scale land-cover changes in the hemiboreal forest zone during the Holocene : a pollen-based study from South EstoniaPoska, Anneli; Väli, Vivika; Vassiljev, Jüri; Alliksaar, Tiiu; Saarse, LeiliQuaternary Science Reviews2022 / art. 107351 https://doi.org/10.1016/j.quascirev.2021.107351 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Tracking changes in the organic matter in a lake palaeoecosystem : a spectrophotometric approachLeeben, Aina; Alliksaar, Tiiu; Heinsalu, Atko; Lepane, Viia; Veski, SiimOrganic geochemistry2008 / 8, p. 915-918 : ill https://doi.org/10.1016/j.orggeochem.2008.05.004 Vertical distribution of DOM characteristic in sediment porewaters from Lake Peipsi, Estonia, as revealed by liquid chromatographyMakarõtševa, Natalja; Lepane, Viia; Alliksaar, Tiiu12th Nordic-Baltic IHSS Symposium on Natural Organic Matter in Environment and Technology : Tallinn, Estonia, June 14-17, 2009 : program and abstracts2009 / p. 74