Everything about N-OF11 Overflow Test (Reed vegetation)
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
75;N-OF11 Overflow Test (Reed vegetation);Strength test;Overflow test to assess the resistance against overflow events of a reed field on a soft, moist soil patch on the lower slope of the levee.;False;True;True;False;False;False;2021-12-13 13:30:00;2021-12-13 14:30:00;0;1.0;Total overflow event duration: 27 minutes.;VI;51.34632681;4.23171917;11.8;Test section on Dutch Levee. Levee slope 21°.;"Lambert'72 coordiantes: 
X = 140451.4 m; Y = 226291.7 m.";The N-OF11 overflow test is executed at a levee section characterized by the presence of a reed field.;It is unknown whether the presence of a patch of soft and moist soil on the levee slope, overgrown with high vegetation and reed, will lead to fast failure during overflow events, or rather stabilise the slope due to the presence of a dense and strong root network.;"Upper part of the levee slope: well maintained levee slope in normal condition.
Lower part of the levee slope: soft, moist soil patch overgrown with grass and reed (not mowed).
See factual data report for more information.";Plan: Perform overflow until damage.;- 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)";;Fast erosion and soil destabilization. See factual data report for more information.;Lower part of levee slope has collapsed after less than 30 minutes.;"-	The presence of a reed and unmowed vegetation section on a soft and moist soil patch, does not withstand an overflow event. After less than 30 minutes, significant damage is present.
-	The root system of given reed patch does not stabilise the soil in between the roots, but give rise to fast significant erosion.";;;"Factual data report:
https://stowanl-my.sharepoint.com/:w:/g/personal/llhpp_stowa_nl/EX5yYnuJ-EBBjoKAxAwg8LkBef8ra9V_-GHjzbkz0Was8g?e=pyaUSq

Factual data report 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.";True;False;False;


All DATA concerning N-OF11 Overflow Test (Reed vegetation)
data_type;data_descripion;date_date;data_find;data_media;data_media_find
Report + Timeseries + Images;The data of the overflow test is reported in the Factual Data report and the data is stored on the P2C Onedrive.;;https://stowanl-my.sharepoint.com/:f:/g/personal/llhpp_stowa_nl/Epl2Szxq_E1PtAbusQKK1CoB5BydqC7qLAdorR89Vx-7vg?e=GqfWOP;;


All EQUIPMENTS concerning N-OF11 Overflow Test (Reed vegetation)
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-OF11 Overflow Test (Reed vegetation)
sensor_type;sensor_attributes
Water height (ultrasonic);
Water velocity (EM);
Cameras;"Surface images of initial and end state.
Images of flow patterns."