3.1 . General on the maps and their composition |
385 |
3.2 . Contents of the preliminary flood risk assessment |
388 |
4 . Development of flood risk management plans |
389 |
5 . Models and systems for identification and protection of areas at risk of flooding 389 | |
5.1 . General on the models |
389 |
5.2 . GraphoTech geo-based model |
390 |
5.3 . Flood risk assessment and management in Bulgaria |
392 |
5.3.1 . Assessment of future flood risk |
392 |
5.3.2 . Flood risk maps for the Danube region |
392 |
5.3.2.1 . Flood risk maps for the Danube River |
392 |
5.3.2.2 . Flood risk maps for regions with significant potential flood risk | |
( RSPFR ) of inland rivers in the Danube region |
393 |
5.3.3 . Maps and assessment of the other 3 basin directorates in Bulgaria |
394 |
5.3.4 . Management plans for the basin directorates |
395 |
6 . Role of GIS |
396 |
3.9.3.4 . GEODETIC MEASUREMENTS AND RESEARCH RELATED TO FLOODS |
396 |
1 . General on geodetic works and geodetic and topographic base for flood control 396 | |
2 . Methods and technologies for a geodetic set for collecting data about the land | |
and underwater relief and composing numerical terrain models |
397 |
2.1 . General on the methods and technologies |
397 |
2.2 . Use of satellite images and technologies |
398 |
2.3 . Traditional updated geodetic methods |
401 |
2.4 . Transverse profiles and requirements |
401 |
2.5 . Aerial laser scanning |
403 |
2.5.1 . Modern possibilities and their use |
403 |
2.5.2 . Laser scanning of the underwater relief – bathymetry |
404 |
2.5.2.1 . General statements |
404 |
2.5.2.2 . Advantages |
405 |
2.5.2.3 . Expenses |
405 |
2.6 . Other methods and technologies |
406 |
2.7 . Numerical models of the surface , terrain and underwater relief – requirements 406 | |
2.8 . Report on geodetic measurements and studies |
407 |
3 . Essence and specifics in composing maps for flood hazard and flood risk |
408 |
3.1 . Thematic cartography . Electronic map |
408 |
3.2 . Types and composition of flood hazard and flood risk maps |
410 |
3.3 . Structural elements of maps |
413 |
3.4 . Thematic map design |
414 |
3.5 . Presentation of results |
415 |
4 . Examples of application of geodetic methods and technologies |
416 |
4.1 . DEVELOPMENT OF A NUMERICAL RELIEF MODEL BY AERIAL | |
LASER SCANNING ( LIDAR ) OF THE AREAS WITH SIGNIFICANT | |
POTENTIAL FLOOD RISK IN BULGARIA |
416 |
4.1.1 . General statements |
416 |
4.1.2 . Contents |
416 |
4.1.3 . Initial information |
417 |
4.1.4 . Subject of the terms of reference |
417 |
4.1.5 . General reference and aim of the project |
417 |
4.1.6 . Main purpose of the contract |
418 |
4.1.7 . Scope of activity |
419 |
4.1.7.1 . Territorial range |
419 |