Total averaged-dry air mole fractions of greenhouse gases for the region of Thessaloniki, such as carbon dioxide, methane, water vapor, carbon monoxide . Measurements were performed using a portable Bruker EM27/SUN spectrometer in the frame of the COllaborative Carbon Column Observing Network (COCCON), which measures direct solar radiation and each spectrum is obtained every 58 seconds, during clear-sky days. Data also include other measured quantities such as: the uncertainty of each measurement (rms), the time of measurement (UTC), the solar zenith ang...

Total averaged-dry air mole fractions of greenhouse gases for the region of Thessaloniki, such as carbon dioxide, methane, water vapor, carbon monoxide . Measurements were performed using a portable Bruker EM27/SUN spectrometer in the frame of the COllaborative Carbon Column Observing Network (COCCON), which measures direct solar radiation and each spectrum is obtained every 58 seconds, during clear-sky days. Data also include other measured quantities such as: the uncertainty of each measurement (rms), the time of measurement (UTC), the solar zenith angle...

The dataset includes daily meteorological parameters for the period 2010-2023 from 54 meteorological stations. You can see visualizations of the data from these stations on the page https://www.meteo.gr/climate/ The parameters are temperature (°C), relative humidity (%), pressure (hPa), rainfall (mm), wind speed (km/h), dominant wind direction, and wind gust (km/h). The measurements come from the network of automatic meteorological stations of the National Observatory of Athens/meteo.gr. Information about the stations and any malfunctions are prov...

The files include daily observations of mean, maximum and minimum air temperature, mean daily values of relative humidity and daily precipitation amount since 1901 in Athens. The data are derived from the historical climatic station of the National Observatory of Athens (the oldest climatic station of Greece). The station has been permanently established atT hissio, on the small Hill of Nymphs (latitude: 37.972 N, longitude: 23.717 E, altitude: 107 m above MSL) near the centre of Athens since the late 19th century, without relocations over the years. The ...

Measurements of atmospheric and oceanographic variables (wind speed and direction, relative humidity, dew point, atmospheric pressure and temperature, sea temperature, pressure and salinity) were collected from the Kalloni Bay mooring (26.2084, 39.1677) in Lesvos Island.

PM10 mass concentration data from Helmos station

Hourly values of hydrological data in the area of Antikythira strait, produced by a marine mooring deployed by HCMR. The monitoring instruments have been positioned at two depths: a) Close to the bottom (approximately 875 m) and b) At intermediate depth (325 m). The mooring site is found at latitude 35ο 36.8 N and longitude 23o 32.3 E.

The MIDAS (Modis Dust AeroSol) satellite dataset provides mid-visible (550nm) columnar aerosol and dust optical depth on a daily basis, at a global scale and at fine spatial resolution (0.1 x 0.1 degrees). Relevant publications: Gkikas, A., Proestakis, E., Amiridis, V., Kazadzis, S., Di Tomaso, E., Tsekeri, A., Marinou, E., Hatzianastassiou, N., and Pérez García-Pando, C.: ModIs Dust AeroSol (MIDAS): a global fine-resolution dust optical depth data set, Atmos. Meas. Tech., 14, 309–334, https://doi.org/10.5194/amt-14-309-2021, 2021. Gkikas, A., ...

Time-series of daily discharge of the 16 largest Greek rivers.

Data time-series of ~20 years (1997-2018)of seagrass Posidonia oceanica annual production covering sixty sites across the Greek Seas. For the same time period, annual sea surface temperature and sea surface temperature of August data are also given.