The data of the Hydrological Observatory of Athens are provided "as is" and in no event shall the Laboratory of Hydrology and Water Resources be liable for any damages, including, without limitation, any disruption, damage and/or loss that may occur while using this site or data. The Hydrological Observatory of Athens makes no warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose; nor assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any data, information, product, or process disclosed; nor represents that its use would not infringe the rights of any third party. In case of research projects or publications using a dataset provided by HOA, NTUA requires to be formally acknowledged as dataset provider, to be offered the opportunity to collaborate on the project or co-author the publication at least at the meta-data descriptions and receive reprints of the articles or a complete list of all products that make use of the dataset.