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Geodetic markers were installed along the main course of the Sélune. Physically marked out in the field, these markers have been located with a high-precision GPS (planimetric and z-precisions are given in the table). Please note that these markers may move slightly with the wetting/drying cycles of mainly clay soils, and their coordinates may be updated if necessary. Geodetic markers can be used as reference points to define a device or a new study area.
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Meteorological observations from weather stations interpolated on a 25x25 km grid, on a daily basis from 1979 to the last calendar year completed, for France. Meteorological observations are freely accessible via OGC SensorThings Standard service : https://frost.geosas.fr/agri4cast/v1.0/ Observed properties : - maximum air temperature (°C), - minimum air temperature (°C), - mean air temperature (°C), - mean daily wind speed at 10m (m/s), - vapour pressure (hPa), - sum of precipitation (mm/day), - potential evapotranspiration from a crop canopy (mm/day), - total global radiation (KJ/m2/day), More informations on Agri4cast Resources Portal : https://agri4cast.jrc.ec.europa.eu/DataPortal/Index.aspx