http://bolin.su.se/data/stockholm-historical-obs-times-1 Anders Moberg Bolin Centre Database 2019 Datafile Atmosphere Weather observations Weather observations Daily data Early instrumental data Sweden Stockholm Earth science > Atmosphere Anders Moberg 2019-08-02T16:53:59+00:00 English 1 None Data are provided in a single file, available in two file formats:<p> 1. plain text file (.txt)<p> 2. tab-separated value file (.tsv)</p> <p> The dataset provides estimated or known observation times for three observations (morning, noon, evening) each day from 1756-01-01 to 2018-12-31. The time unit always corresponds to UTC+01:00.</p> <p> Further information about the data file content is found in a README text file. For the period 1756⁠ – 1822, the documentation about exact observation times is often missing. More clear information has been provided from 1823 onwards. In addition, the convention for measuring time has changed from local solar time (before 1841), local mean time (1841⁠ – 1878), a common Swedish time (1879⁠ – 1899), to Central European Time (CET) that has been used since 1900. Considering the often missing information in the early period, Moberg et al. (2002) made an attempt to estimate the time point of all individual observations, relevant in particular for <a href="https://bolin.su.se/data/stockholm-historical-thermometer">thermometer observations</a> and <a href="https://bolin.su.se/data/stockholm-historical-barometer">barometer observations</a>, specified in CET (i.e. UTC+01:00). This dataset is available and updated here. A discussion of the various observation times used, with an explanation of how they were converted to CET is described in section 2.4 in Moberg et al. (2002). A monthly overview is given in Table I in the associated Erratum. The observation site is included in the national station network managed by the Swedish Meteorological and Hydrological Institute (SMHI), with station number 98210 (manual station) and 98230 (automatic station). Note: When an automatic weather station was installed on 1996-10-01, hourly observations started to be made. However, the observation times presented in the current dataset are, consistently, a subset representing the three daily observation times (morning, noon, evening) that have been used for calculation of daily mean temperatures and for other weather observations made at the manual station.