Everything about N-OF03 Overflow Test (Reference) id;activity_name;activity_type;activity_descriptor;breaching;animal;erosion;temporary;levee_survey;prolonged;start_date;end_date;date_length_day;date_length_hour;date_other;levee_stretch;location_x;location_y;location_z;location_descriptor;location_other;objectif_important;objectif_knowledge;pre_condition;act_des;monitoring_process;monitoring_reasoning;limits;during_activity;post_activity;activity_result;results_conc;knowledge_desc;ref_links;wrk_1;wrk_2;wrk_3;key_info 65;N-OF03 Overflow Test (Reference);Strength test;During the N-OF03 reference test, detailed hydraulic measurements were performed. PTV, LSPIV, Lidar measurements during the experiments.;False;False;True;False;True;False;2021-12-06 08:00:00;2021-12-08 17:00:00;3;14.0;;VI;51.34789;4.22973;12.06;Landward slope of levee.;"Lambert coordinates: X=140313.0 m, Y=226465.6 m.";Perform an overflow test on a Dutch levee in (visually) good condition. It is considered as a reference case for the Dutch levee in the Hedwige-Prosperpolder.;"Impact of river overflow on a grass-covered levee. Perform";Levee slope in visually good condition.;"11 blocks of overflow, for a total of 14:40 hours. PTV measurements executed on 6/12/2021; LSPIV and hi-speed camera on 7/12/2021.";- Overhead cameras (4) - Acoustic water height sensors - Electromagnetic current velocity sensors - Discharge sensor (EM or acoustic);"Description of the hydraulic conditions of the overflow. The setup is described in Vercruysse et al. (2022): ""Design and application of an overflow generator."" (Ref WL2022R20_047_1)";;During the course of the experiment however, it is seen that the normal evolution as in other reference tests is ongoing: slight soil erosion and increasing exposure of vegetation root systems. However,there is no critical damage being created and the overall slope is holding. During the last afternoon, holes were drilled to evaluate whether this would lead to damage, which appeared not to occur.;The levee slope stayed in good condition apart from the slight erosion described during the activity. No critical damage.;A levee in a well maintained state without any obvious anomalies, is able to withstand elevated discharges (specific discharges up to 500l.s-1.m-1) for several hours.;Factual data report: https://stowanl-my.sharepoint.com/:w:/g/personal/llhpp_stowa_nl/EX5yYnuJ-EBBjoKAxAwg8LkBef8ra9V_-GHjzbkz0Was8g?e=pyaUSq Annexes: https://stowanl-my.sharepoint.com/:w:/g/personal/llhpp_stowa_nl/EWIzoxIhxopCryc6744YgHYBBWr_0fhoGpJ_1pSy0_tM2w?e=pY8Hc6;An integration report will be added later (February 2023) as knowledge document.;under development;True;False;False; All DATA concerning N-OF03 Overflow Test (Reference) data_type;data_descripion;date_date;data_find;data_media;data_media_find Timeseries;Timeseries of Discharge, Water Height and Current Velocity in different positions on the levee slope.;;https://stowanl-my.sharepoint.com/:f:/g/personal/llhpp_stowa_nl/ErQ93iDoOwJGv4qGpMq5fAYBZx3f7rGhvfgSxR7CRgorDA?e=tMwTZH;; Photo imagery;2 portals with in total 4 cameras are used to take surface photographs of the levee slope at different times during and in between overflow activity. The surface images in between overflow blocks show damage and vegetation evolution.;;https://stowanl-my.sharepoint.com/:f:/g/personal/llhpp_stowa_nl/EpghMj5lK5lCk-AWqpOA5JABfVwV2vOSKeyK3Wo322n0uA?e=5fdXPb;; Hydraulic measurements;Other monitoring data, including PTV, LSPIV, ...;;;;Contact Flanders Hydraulics for more information. All EQUIPMENTS concerning N-OF03 Overflow Test (Reference) equip_type;equip_usage Overflow generator;"The setup is described in Vercruysse et al. (2022): ""Design and application of an overflow generator."" (Ref WL2022R20_047_1)" All SENSORS concerning N-OF03 Overflow Test (Reference) No sensors added