Daily Water Levels of the Vistula River at Warsaw, 1799–2024: A Complete and Homogenized Long-Term Record

The dataset Vistula River Warsaw Daily Water Levels provides a continuous daily record of water stages of the Vistula River at Warsaw, comprising 82,453 observations from 1 February 1799 to 31 October 2024. Data are stored in a two-dimensional tabular format with one row per day and variables provided in columns. The table contains the following fields: date – calendar date in the format YYYY-MM-DD. water_level_cm – daily water stage in centimetres relative to the reference gauge zero, homogenized and referred to the currently operating gauge Warsaw–Boulevards. water_level_m_Kronstadt60 – water level converted to metres above sea level according to the Kronstadt 60 vertical reference system (m a.s.l.). water_level_m_EVRF2007 – water level converted to metres above sea level according to the EVRF2007 vertical reference system (m a.s.l.). data_type – classification of the record as observed (measured values) or reconstructed (gap-filled values). original_observation – unadjusted water level observations recorded in the original measurement units, without any corrections or conversions.Units used over time: 1799-02-01 – 1859-12-31: New Polish cal (≈ 2.4 cm) 1860-01-01 – 1879-12-01: English Imperial inch (≈ 2.54 cm) 1880-01-01 – 1910-10-31: Russian 1/100 sazhen (≈ 2.13 cm) from 1910-11-01: centimetres (cm) reconstruction_method – method applied in the case of reconstructed data, e.g. linear interpolation or gauge relationship. remarks – additional information, notes on reconstructions quality. Data sources: Kolberg, Wilhelm: Wisła, jej bieg, własności i spławność, 1861. https://polona.pl/preview/32757498-b4a1-4943-bce2-6caba73f2025 Słowikowski, J.: Stany wody na Wiśle pod Warszawa od 1860-1880 r. z oznaczeniem periodów stawania i puszczania lodów, Pamiętnik Fizjograficzny, 1881. https://polona.pl/preview/d3aad565-6b00-4d68-95a3-c0c72572c5ec Svedeniya o stoyaniyakh urovnya vody v rekakh i ozerakh Evropeyskoy Rossii po nablyudeniyam na 80-ti vodomernykh postakh, [Сведения о стояниях уровня воды в реках и озерах Европейской России по наблюдениям на 80-ти водомерных постах], 1881. https://www.prlib.ru/item/1728356 Svedeniya ob urovne na vnutrennikh vodnykh putyakh Rossiyskoy Imperii na vodomernykh postakh, uchrezhdennykh Ministerstvom putey soobshcheniya [Сведения об уровне на внутренних водных путях российской Империи на водомерных постах, учрежденных Министерством путей сообщения], Vol. 1. 1881–1890, 1907 Svedeniya ob urovne na vnutrennikh vodnykh putyakh Rossiyskoy Imperii na vodomernykh postakh, uchrezhdennykh Ministerstvom putey soobshcheniya [Сведения об уровне на внутренних водных путях российской Империи на водомерных постах, учрежденных Министерством путей сообщения], Vol. 2. 1891–1900, 1909. Svedeniya ob urovne na vnutrennikh vodnykh putyakh Rossiyskoy Imperii na vodomernykh postakh, uchrezhdennykh Ministerstvom putey soobshcheniya [Сведения об уровне на внутренних водных путях российской Империи на водомерных постах, учрежденных Министерством путей сообщения], Vol. 3. 1901–1910, 1915. https://elib.rgo.ru/handle/123456789/228852 Jahrbuch für die Gewässerkunde Norddeutschlands. Memel–Pregel– und Weichsel–Gebiet, 1912–1915. Rocznik Hydrograficzny. Dorzecze Wisły, 1920–1945. Rocznik Hydrograficzny. Wisła i rzeki Przymorza na wschód od Wisły, 1946–1961. Rocznik Hydrologiczny Wód Powierzchniowych. Dorzecze Wisły i rzeki Przymorza na wschód od Wisły, 1962-1981. Database of the Institute of Meteorology and Water Management in Warsaw (IMGW): https://danepubliczne.imgw.pl/data/dane_pomiarowo_obserwacyjne/ The dataset has been harmonized from heterogeneous historical sources and adjusted for gauge relocations, unit conversions, and reference level changes, providing a consistent long-term series suitable for hydrological and environmental research.