Students and staff

Publikācijas

Publikācijas

2022
Popovs, K., Kalvāns, A., Jemeljanova, M., Saks, T., Dēliņa, A., Bikše, J., Babre, A., Retiķe, I.  2022. Bedrock surface topography of Latvia. Journal of Maps, 1-12.
Retiķe, I., Bikše, J., Kalvāns, A., Dēliņa, A., Avotniece, Z., Zaadnoordijk, W. J., Jemeljanova, M., Popovs, K., Babre, A., Zelenkevičs, A., Baikovs, A. 2022. Rescue of groundwater level time series: How to visually identify and treat errors. Journal of Hydrology 605
Babre, A., Kalvāns, A., Avotniece, A., Retiķe, I., Bikše, J., Popovs, K., Jemeljanova, M., Zelekevics, A., Dēliņa, A. 2022. The use of predefined drought indices for the assessment of groundwater drought episodes in the Baltic States over the period 1989-2018. Journal of Hydrology: Regional Studies 40, 101049
2021
Kalvāns, A., Popovs, K., Priede, A., Koit, O., Retiķe, I., Bikše, J., Dēliņa, A., Babre, A. 2021. Nitrate vulnerability of karst aquifers and associated groundwater‑dependent ecosystems in the Baltic region. Environmental Earth Sciences 80:628
2020
Terasmaa J., Retike, I., Vainu, M., Priede, A., Lode, E., Pajula, R., Koit, O., Tarros, S., Bikše, J., Popovs, K. 2020. Joint Methodology for the Identification and Assessment of Groundwater Dependent Terrestrial Ecosystems in Estonia and Latvia. In: Negm A., Zelenakova M., Kubiak-Wójcicka K. (eds) Water Resources Quality and Management in Baltic Sea Countries. Springer Water. Springer, Cham
2019

Kalvāns, A., Dēliņa, A., Babre, A., Popovs. K. 2019. An insight into water stable isotope signatures in temperate catchment. Journal of Hydrology 582, 124442

Blöschl G, Jeff J, (..), Kalvāns A, (..). 2019. Twenty-three Unsolved Problems in Hydrology ( UPH ) – a community perspective. Hydrological Sciences Journal (2019) 1–33

Jakovļeva, M., Auziņa, D., Brūzis, R., Mørkestøl, I., Rundberget, B., Bebre, V., Doniņa, I., Kļava, V., Straube, G., Bērziņš, V., Vīksna, A., Actiņš, A., Meija, R., Popovs, K., Upmalis, R., Parfentev, A. 2019. Gone to smelt iron in Courland: technology transfer in the development of and early modern industry. Post-Medieval Archaeology 53(1), 102-124
2018

Bikše, J., Retiķe, I. 2018. An Approach to Delineate Groundwater Bodies at Risk: Seawater Intrusion in Liepaja (Latvia). E3S Web of Conferences. (54) 00003. (Open Access, SCOPUS)

Kalvāns, A., Babre, A., Popovs, K. 2018. Stable isotope values of the groundwater as function of the soil properties. 18th Int. Multidiscip. Sci. GeoConference SGEM 2018, 18 (2018), 641–648

Kalvāns, A., Hang, T., Kohv, M. 2018. Sediment dispersion in a large ice-contact lake reconstructed from a varve record: Pärnu Bay region, Estonia. 18th Int. Multidiscip. Sci. GeoConference SGEM 2018, 18 (2018), 457–464

Kalvāns, A., Kalvāne, G. 2018. Timing of spring phenological phases of bird cherry and silver birch under climate change in 21st century in Latvia. 18th Int. Multidiscip. Sci. GeoConference SGEM 2018, 18 (2018), 1013–1020

Retike, I., Bikše, J. 2018. New Data on Seawater Intrusion in Liepaja (Latvia) and Methodology for Establishing Background Levels and Threshold Values in Groundwater Body at Risk F5. E3S Web of Conferences. (54) 00027. (Open Access, SCOPUS)
2017

Ch. Gerber, R. Vaikmäe, W. Aeschbach, A. Babre, W. Jiang, M. Leuenberger, Z.-T. Lu, R. Mokrik, P. Müller, V. Raidla, T. Saks, N. H. Waber, Th. Weissbach, J. C. Zappala, R. Purtschert. 2017. Using 81Kr and Noble Gases to Characterize and Date Groundwater and Brines in the Baltic Artesian Basin on the One-Million-Year Timescale. Geochimica et Cosmochimica Acta.  

Kalvāns A, Sīle T, Kalvāne G. 2017. Phenological model of bird cherry Padus racemosa with data assimilation. International Journal of Biometeorology, (DOI: 10.1007/s00484-017-1401-6)
2016

Raidla, V., Kern, Z., Pärn, J., Babre, A., Erg, K., Ivask, J., Kalvāns, A., Kohan, B., Lelgus, M., Martma, T., Morkir, R., Popovs, K., Vaikmae, R. 2016 (in print). A δ18O isoscape for the shallow groundwater in the Baltic Artesian Basin. Journal of Hydrology.  

Kalvāns, A., Hang, T., Kohv, M. 2016 (in press). Grain-size of varved clays from the north-eastern Baltic Ice Lake: Insight to the sedimentary environment. Estuarine, Coastal and Shelf Science. 

Babre, A., Kalvāns, A., Dēliņa, A., Popovs, K., Bikše, J. 2016. Investigation of surface water-groundwater interactions in the Salaca headwaters using water stable isotopes. Folia Geographica, Vol 15, 6-10.

Babre, A., Kalvāns, A., Popovs, K., Retiķe, I., Dēliņa, A., Vaikmäe, R., Martma, T. 2016. Pleistocene age paleo-groundwater inferred from water-stable isotope values in the central part of the Baltic Artesian Basin. Isotopes in Environmental and Health Studies. Available Online: 2016 04 May. DOI: 10.1080/10256016.2016.1168411

Retiķe, I., Kalvāns, A., Popovs, K., Bikše, J., Babre, A., Dēliņa, A. 2016. Geochemical classification of groundwater using multivariate statistical analysis in Latvia. Hydrology Research, Available Online: 2016 Feb, DOI: 10.2166/nh.2016.020
2015

Popovs, K., Saks, T., Jātnieks, J. 2015. A comprehensive approach to the 3D geological modelling of sedimentary basins: example of Latvia, the central part of the Baltic Basin. Estonian Journal of Earth Sciences, 64(2), 173-188.

Kalvāns, A.; Bitāne, M. & Kalvāne, G. 2015. Forecasting plant phenology: evaluating the phenological models for Betula pendula and Padus racemosa spring phases, Latvia. International Journal of Biometeorology, Vol 59(2), 165-179
2014

Lukševičs E., Stinkulis Ģ., Saks T., Popovs K., Jātnieks J. 2014. The Devonian stratigraphic succession and evolution of the Baltic sedimentary basin. In Rocha R. et al. (eds) STRATI 2013. Springer, Switzerland, 539–541.
2013

Virbulis, J., Bethers, U., Saks, T., Seņņikovs, J., Timuhins, A. 2013. Hydrogelogical model of the Baltic Artesian Basin. Hydrogeology Journal, Vol. 21, Issue 4, p. 845-862.
2012

Retiķe, I.; Kalvāns, A.; Dēliņa, A.; Babre, A.; Raga, B.; Pērkone & E. 2012. Pilnīgās atstarošanas rentgenfluorescences pielietojums mikroelementu un makroelementu analīzei pazemes ūdeņos. Scientific Papers University of Latvia, 785, 99 - 111.

Babre, A., Marandi, A., Skuratovič, Ž. 2012. Oxygen and hydrogen stable isotope composition in the groundwater of the Baltic Artesian Basin. In: Delina, A., Kalvans, A., Saks, T., Bethers, U. & Vircavs, V. (red.). Highlights of groundwater research in the Baltic Artesian Basin. Riga, University of Latvia, 123-134.

Delina A., Babre A., Popovs K., Sennikovs J., Grinberga B. 2012. Effects of karst processes on surface water and groundwater hydrology at Skaistkalne vicinity, Latvia. – Hydrology Research, 43(4), IWA Publishing, pp. 445-459

Klints, I., Dēliņa A. 2012. Groundwater abstraction in the Baltic Artesian Basin. In: Delina, A., Kalvans, A., Saks, T., Bethers, U. & Vircavs, V. (red.). Highlights of groundwater research in the Baltic Artesian Basin. Riga, University of Latvia, 106-123.

Luksevics, E., Stinkulis, G., Murnieks, A., Popovs, K. 2012. Geological evolution of the Baltic Artesian Basin. In: Delina, A., Kalvans, A., Saks, T., Bethers, U. & Vircavs, V. (red.). Highlights of groundwater research in the Baltic Artesian Basin. Riga, University of Latvia, 7-53.

Raga, B.; Kalvāns, A.; Dēliņa, A. 2012. Pamatjonu koncentrācijas izmaiņas pazemes ūdeņos attīstoties depresijas piltuvei Rīgas apkārtnē. Scientific Papers University of Latvia, 785, 82 - 98.

Saks, T., Seņņikovs, J., Timuhins, A., Marandi, A., Kalvans, A. 2012. Groundwater flow beneath the Scandinavian ice sheet in the Baltic Basin. In: Delina, A., Kalvans, A., Saks, T., Bethers, U. & Vircavs, V. (red.). Highlights of groundwater research in the Baltic Artesian Basin. Riga, University of Latvia, 75-91.

Saks, T.; Kalvāns, A. & Zelčs, V. 2012. OSL dating evidence of Middle Weichselian age of shallow basin sediments in Western Latvia, Eastern Baltic. Quaternary Science Reviews, 40(SI), 60 - 68.

Saks, T.; Kalvāns, A. & Zelčs, V. 2012. Subglacial bed deformation and glacial dynamics of the Apriķi glacial tongue, Western Latvia. Boreas, 41(1), 124 - 140.

Teterovskis, J. & Kalvāns, A. 2012. Vēsturisko datu par pamatjonu koncentrāciju Latvijas pazemes ūdeņos validācija. Scientific Proceedings of Riga Technical University. Material Science and Applied Chemistry, 25, 76 - 83.

Virbulis, J., Timuhins, A., Popovs, K., Klints, I., Seņņikovs, J., Bethers, U. 2012. Script based MOSYS system for the generation of a three dimensional geological structure and the calculation of groundwater flow. In: Delina, A., Kalvans, A., Saks, T., Bethers, U. & Vircavs, V. (red.). Highlights of groundwater research in the Baltic Artesian Basin. Riga, University of Latvia, 53-57.