JP2008083167A - Moving flood-assumed area viewer system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a useful moving flood-assumed area viewer system capable of displaying flood-assumed areas for each bank breaking point and for each time series by using a GIS (geographic information system) and easily displaying an animation of change in flood state of floods with time after bank breaking any time. <P>SOLUTION: Necessary data, mainly such as background map data 1, flood-assumed area data 2, altitude data 3, facility data 4, and damage assumption data 5, are converted in advance through a converting program 6 based on geographic information or river information, and the converted data 1A, 2A, 3A, 4A, and 5A are captured to thereby structure the viewer system A. The viewer system A is equipped with a dynamic display means for dynamically displaying flooding analysis results of the flood-assumed area map for each of the bank breaking points and for each of the time series, and has a screen display basic function, a flood range/flood depth relative function, an evacuation information relative function, a ground height relative function, and a simple printing/screen copying function by rough classification. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a viewer system that can display an assumed inundation area for each assumed breakwater point using a map image as a background, and more specifically, an inundation analysis result of an assumed inundation area map created by a river manager. The results of the inundation simulation used can be displayed on the related disaster prevention information on the detailed background map and elevation data, etc., in any range, scale, color scheme and speed, etc. It is related to a useful moving inundation assumption area viewer system that can be useful for supporting residents' evacuation planning.

  The flood inundation area system is more effective by requiring the flood forecast river system, requiring the flood forecast river to be designated as the flood inundation area, and taking measures for smooth and prompt evacuation such as setting appropriate evacuation sites. The purpose is to ensure the evacuation of healthy residents.

  Conventionally, the inundation area map is a basic document for the proper operation of this system, and is used when the inundation area is designated and announced by the country or prefecture, and is communicated to the heads of related municipalities. , Municipal Disaster Prevention Council will be the basic data for determining the flood forecast transmission method, evacuation site and other necessary items for ensuring smooth and prompt evacuation at the time of flooding at least for each inundation area ( For example, refer nonpatent literature 1).

The “inundated area” is an area that is expected to be inundated when a river levee breaks due to flooding, etc., and is designated by the river manager. It is a drawing showing the expected inundation area, the inundation depth within the area, and other necessary matters, and by knowing the inundation assumption area and the inundation depth in advance, damage due to inundation will be reduced as much as possible. To be made public.
Inundation assumption area map making manual and medium and small river inundation assumption area figure making guide (Ministry of Land, Infrastructure, Transport and Tourism river station flood control section: June, 2005 making)

  However, the above-mentioned conventional inundation area map is the sum of the maximum inundation areas of all the assumed breakwater points. As an intermediate result when creating an assumed area map, there is a problem that it can only be answered with an output map and cannot be easily seen at any time.

  Furthermore, it is difficult to quickly see the specific inundation area and the expected inundation area after the breach lapse time by using the conventional inundation area map alone. In combination with the fact that it cannot be seen, it was impossible to quickly see the inundation area of a bank breakage site and the inundation depth of the inundation area quickly.

  The present invention has been made in view of the above-described conventional problems. The GIS (Geographic Information System) is used to display the estimated inundation area for each bank breakage point and each time series, and after the bank breakage. It is an object of the present invention to provide a useful moving assumed inundation area viewer system that can easily and easily display changes in the inundation situation over time.

  In order to solve the above-mentioned conventional problems and achieve the intended purpose, the configuration as the gist of the present invention is a viewer system that uses a map image as a background, based on geographical coordinates, background map data, inundation assumption It is provided with necessary data such as area data, elevation data, facility data, damage prediction data, and dynamic display means for dynamically displaying the inundation analysis result of the inundation area map by breach point and time series. It exists in the moving inundation assumption area viewer system.

  The necessary data includes the background map data to be displayed on the background of the map screen, the breach point data that is the location information of the breach point and the overflow line, and the inundation recorded in time for the inundation simulation result of the assumed breach point. Time-series data, inundation-related data that collects various information to be displayed at the same time when inundation simulation is displayed, information such as the number of flooded populations, the number of flooded houses, the amount of damage, etc. displayed at each bank breakpoint selection or bank breakpoint timeline Damage prediction data collected, numerical elevation data representing ground height, high water level, facility data representing facility locations and details such as evacuation sites and public facilities, hospitals, inundation assumed area data representing the assumed inundation area, wide area map All or any of the index data to be displayed may be selected or combined.

  Further, the dynamic display means includes an inundation simulation display function for displaying the inundation simulation result of the selected bank breakage point, a map display function for displaying a background map based on geographical coordinates, and a position where the displayed map is located. The index display function that displays the wide area map that indicates whether or not, the maximum inundation range of all breach points is displayed in different colors according to the inundation depth, and the maximum inundation range for each breach point is displayed Inundation range display function, inundation depth time-series display function that displays the expected inundation area in different colors according to the inundation depth assuming the elapsed time after the bank breakage, and the inundation assumption area continuously up to the specified elapsed time Inundation depth display setting function to display color-coded according to, facility information display function to display facility information and details of facility information, estimated damage amount per bank breakage point or time series, number of flooded population, flooded houses Damage display functions such as, etc., and a function to display the inundation assumed area according to each flooding calculation pattern by providing multiple flooding calculation patterns of rainfall waveform, rainfall scale, bank breakage width for each bank breakage point, and Inundation emphasis display function that highlights when facility points enter the inundation assumption area during continuous display of inundation assumption area, display color change function that changes the display color by rank of inundation depth, and rank classification of inundation depth Display function by submergence depth rank, automatic rank setting function that automatically assigns the inundation depth rank, display color, evacuation area display function that displays walking evacuation area from any point, and ground at any point A ground height display function that displays height, an altitude difference display function that displays colors that are lower than an arbitrary point according to the altitude difference, and a screen printing function that prints the displayed screen Cross section display / distance measurement function to measure cross section and distance of arbitrary section, water level cross section creation function to display water level cross section view of arbitrary section, and area measurement function to measure area by range specification. It is good to choose or combine.

  The present invention is configured as described above, and displays an inundation assumption area for each bank breakage point and time series, and can easily display changes in the inundation situation due to the time of inundation after the bank break at any time. There are effects such as.

  In particular, combining essential data such as background map data, assumed inundation area data, altitude data, facility data, etc., and promptly and efficiently displaying the assumed inundation area and inundation depth by specifying the breakwater point, elapsed time, etc. It is effective for presuming the inundation situation and evacuation plan at the time of inundation.

  In addition, since the inundation status and facility information can be displayed together with the background map, etc., it has excellent advantages in the examination of regional disaster prevention plans and flood hazard maps by municipalities. In addition, since the display result can be easily printed, copied, etc., it has an excellent effect in transmitting information during normal times and in an emergency.

  Furthermore, in addition to being able to see the inundation range and depth dynamically, various GIS functions such as cross-sectional display of inundation status and color coding by difference in elevation are used, so support for action plans during floods, It can be used to formulate evacuation plans.

  In particular, the results of the inundation simulation using the inundation analysis result of the inundation assumed area map created by the river manager, the detailed background map and elevation data etc. on the related disaster prevention information, arbitrary range, scale, color scheme and Since it can be displayed in an easy-to-understand manner, such as the speed of progress, it can be useful for supporting the residents' evacuation plan formulation by looking at the changes over time.

  Also, unlike inundation area maps and flood hazard maps on paper maps, information is not fixed and can be expressed with animations to simulate actual floods and flooding that change from moment to moment. Therefore, anyone can easily and realistically see the situation of flooding.

  As described above, the present invention can display the assumed inundation area for each elapsed time after the bank breakage and can see the change in the inundation time by animation. The implementation of the present invention has great practical value, such as support for concrete action plans in the event of a water disaster by a person in charge of disaster prevention, a municipality disaster prevention person, and it can be used for a crisis management exercise in normal times. .

  Based on the geographic coordinates, combine the necessary data such as background map data, assumed inundation area data, elevation data, facility data, damage prediction data, etc. To display automatically. Necessary data include background map data to be displayed on the background of the map screen, breach point data that is the location information of the breach point and overflow line, and inundation time series that records the inundation simulation results of the expected breach point at each hour. Data, inundation-related data collected at the same time when displaying inundation simulation, information such as the number of inundation population, the number of inundated houses, the amount of damage, etc. displayed at the time of breach point selection or for each breach point and time series Damage prediction data, ground elevation, numerical elevation data representing high water level, facility data representing facility locations and details such as evacuation sites and public facilities, hospitals, inundation assumed area data representing the assumed inundation area, wide area map Therefore, it is preferable to select or combine all or any of the index data.

  Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, A is a moving inundation assumed area viewer system according to the present invention, and this moving inundation assumed area viewer system (hereinafter simply referred to as “this viewer system”) A has geographical information or river as shown in FIG. Based on the information, necessary data such as background map data 1, inundation assumed area data 2, elevation data 3, facility data 4 and damage prediction data 5 are converted in advance through a conversion program 6 in advance and converted. This viewer system A is constructed by taking in each data 1A, 2A, 3A, 4A, 5A.

  Necessary data that can be captured by the viewer system A includes, in addition to the above-described data 1, 2, 3, 4, and 5, for example, bank breakpoint data that is position information of the bank breakpoint and the overflow line, Examples include inundation time-series data that records the results of inundation simulation at the dam site every hour, inundation-related data that collects various information that is displayed simultaneously when the inundation simulation is displayed, and index data for displaying a wide-area map.

  In addition, this viewer system A includes dynamic display means for dynamically displaying the inundation analysis result of the assumed inundation area map by breach point and time series, and this dynamic display means is roughly classified ( 1) Basic screen display function, (2) Inundation range / inundation depth related function, (3) Evacuation information related function, (4) Ground height related function, (5) Simple print / screen copy function. Hereinafter, each function will be described in more detail.

(1) Screen display basic function The background map data 1 has a screen display basic function for displaying various map data. This basic screen display function is a function for displaying a map or a wide area map around the target river, and is composed of a map display function, an index display function, a cross-section / distance measurement function, and an area measurement function.

  The map display function displays the background map 1a based on geographical coordinates. Specifically, as shown in FIG. 2, a map or a wide area map around the target river is displayed, or a map around a specified point is displayed. Can be enlarged or reduced.

  In addition, the specified rectangular area can be enlarged, the map can be displayed at the default scale, the point specified on the map, the wide area map, or the background map can be displayed at the center, or the inundated area The whole can be displayed. Furthermore, as will be described later, it is devised so that the distance between designated points can be displayed and the area of the designated polygonal range can be displayed.

  The index display function displays a wide area map (index) 2a indicating where the displayed map is located, and it is necessary to set the name of data to be displayed, the color and size of figures and characters, and the like. .

  The section / distance measurement function measures the section display and distance of an arbitrary section. Specifically, select [Distance / Section] from the [Screen] menu, and click repeatedly on the map screen. As shown in a), the starting point and the ending point are connected by a polygonal line 7, and by double-clicking at the ending point, the distance (m) between the starting point and the ending point along the polygonal line 7 and the topographical section graph 7a are displayed (Fig. 3 (b)). If there is no elevation data in the corresponding range, only the distance is displayed.

  In addition, the area measurement function is to measure an area by specifying a range. Specifically, by selecting [Area] from the [Screen] menu and repeatedly clicking on the map screen, as shown in FIG. When the polygon 8 is drawn and double-clicked at the final point, the polygonal area 9 can be displayed (see FIG. 4B).

(2) Inundation range and inundation depth related functions Inundation assumption area data 2 displays the assumed inundation area map, displays the location and name of the assumed breakwater point, and searches for breakage points based on the breakwater point name It has a function related to the inundation range and inundation depth that can display and display the expected inundation status at the specified breakwater point and elapsed time.

  The inundation depth-related function displays the assumed inundation area map, and displays the position and name of the assumed breakwater point, and the maximum inundation range of all breakwater points in different colors according to the inundation depth. Specifically, as shown in FIG. 5, when the [Inundation assumption area] button 10a on the [Contents] toolbar 10 is pressed, the inundation assumption area is displayed in different colors for each inundation depth on the map screen. Whether or not to display can be switched, and the color of display color and the width of gradation are set in [Submersion depth display color / gradation change] in the [Setting] menu.

  In addition, the display of the breakwater point can be displayed by switching the presence or absence of the assumed breakwater point / overflow line. In this way, the bank breakage point is displayed as a “red dot” 10b on the map screen.

  Furthermore, when [Kilopost] (not shown) is selected from the [Branch Point] menu, the name of the bank breakage point is displayed next to the point. In addition, the breakwater point where the inundation simulation cannot be displayed due to different calculation conditions is not displayed.

  Also, if necessary, specify the breakwater point to display the inundation simulation. As a designation method, for example, there are a case of [selecting a point designated on a map screen] and a case of [selecting a point searched from a bank breakpoint name], and a [bank breakage point search] dialog 11 is displayed. .

  Specifically, as shown in FIG. 7, the bank breakpoint name is clicked from the list of all bank breakpoints 11a, and the [Map Search] button 11b is selected for selection. In addition, it is also possible to select a bank breakage point in the list after narrowing it down by name. In this case, after entering a part of the bank breakpoint name in the frame, the list can be selected from the narrowed down list. As shown in FIG. 8, the selected breakwater point is displayed as a blue dot 11c on the map screen, and at the same time, the maximum range taken by the time-series data of the selected breakwater point is displayed as gray 11d.

  The inundation simulation display function displays the inundation simulation result of the selected breakwater point. Specifically, the simulation is performed as shown in FIG. The display operation dialog 12 is displayed, and the simulation results before and after the bank breakage are displayed on the map screen (see FIGS. 9A and 9B). In addition, when the name of a facility is displayed on the map screen 12c, as shown in FIGS. 9C and 9D, the display is set so as to change depending on the inundation situation at a certain point.

  Further, as shown in FIG. 10, the continuous display of the inundation simulation is to start continuous display of simulation results (pseudo animation) by pressing the arrow button 13a of the operation dialog 13, and the start elapsed time 13b, An end elapsed time 13c can be set. Incidentally, this animation function makes it easy for disaster prevention officials to understand because the prediction result of flooding is animated and dynamically displayed.

  Moreover, the display speed of the animation can be changed by adjusting the display speed 13d. When the [Confirm] button 13e is pressed, the simulation result at the selected elapsed time is displayed and the map image display is displayed again. Can be created. Note that when the [Cancel] button 13f is pressed, the program is programmed to return to the state where the bank breakage point has been selected.

  After pressing the confirm button 13e, as shown in FIG. 11, other basic display operations can be performed while the simulation result 13A of the selected breakwater point at the selected elapsed time is displayed. Until the selection is canceled, the selected bank breakpoint name, calculation condition, and elapsed time are displayed on the status bar 3a (see FIG. 2).

  In this way, the inundation simulation display function displays the inundation simulation data in the inundation assumption area map in the inundation assumption area map for each part of the estimated inundation simulation data at the locations where there is a risk of bank breakage or the like according to the flood forecast. It can be displayed together with the above, which is convenient.

  In addition, as shown in FIG. 12, the water level sectional view creation function displays a water level sectional view 14 of an arbitrary section (see FIG. 12B).・ Displays inundation level.

  Specifically, select [Water Level Cross Section] from the [Branch Point] menu, click repeatedly on the map screen, and connect the start point to the end point with a broken line 14a as shown in FIG. By double-clicking, the ground height, inundation depth / inundation level, and high water level graph 14b can be displayed, and the range without altitude data is determined to be 0 m.

  Furthermore, inundation-related information is a function that displays information related to inundation at the right corner of the map screen or at the specified coordinates.The display content is stored in the inundation-related information data, and the item designation to be displayed is the time-series data. Store in the attribute in advance.

  Specifically, as shown in FIG. 13, information 15 related to inundation is displayed in conjunction with the inundation simulation display, and the presence or absence of display is selected by selecting [Inundation-related information] from the [Bulk break point] menu. Can be switched.

  In addition, as shown in FIG. 14 (a), the facility inundation status dialog 16 displays the number of facilities determined to be inundated and the total number of facilities in the inundation simulation column 16a. Specifically, a facility breakage point may be selected, and a facility inundation status may be selected from the Bank Breakage Point menu in a state where a specific time on the inundation simulation screen is set to [Confirmed].

  As shown in FIG. 14B, the facility name list dialog 17 displays a list of inundated facility names. In the facility name list column 17a, select the type name for which the name list is to be displayed, The attribute display button 17b is selected. It is also possible to display the name list by double-clicking on the type name to be displayed.

  Further, the attribute value confirmation is to display the facility attribute in the inundation. Specifically, as shown in FIG. 14C, the name of the facility whose attribute is to be displayed is selected in the attribute value confirmation dialog 18, and [Facility Select [Attribute Display]. It is also possible to display by double-clicking the name of the facility for which facility attributes are to be displayed.

  As shown in FIG. 15, the damage prediction function displays damage prediction information 19 such as the number of inundated populations, the number of inundated houses, and the amount of damage related to the selected breakwater point in a table format. If you select [Damage Prediction] from the [Branch Point] menu, the maximum inundation depth, inundation area, inundation population, underfloor population, underfloor population, inundated houses, etc. are displayed by municipality name, as shown in FIG. . The display contents can be saved in the CSV file format simply by selecting the [CSV output] button 19a and specifying the file name to be saved.

  Furthermore, the inundation display setting function changes settings related to the bank breakage point and simulation, and the inundation depth display color / gradation setting is a function for setting the display color, gradation range, and gradation width of the inundation depth. . It affects the inundation depth display at the time of inundation simulation, the inundation depth display of the assumed inundation area (maximum inundation depth), and the elevation difference display of the ground high and low land (numerical setting).

  Specifically, select the [Submersion Depth Display Color / Gradation Change] button (not shown) from the setting menu to display the change screen, change color, add rank, delete rank, automatic rank setting, save, load It can be performed.

  Therefore, it is possible to change the display color according to the inundation depth rank, display the inundation depth ranking (display function according to the inundation depth rank), rank the inundation depth, automatically assign the display color, etc. (Automatic rank setting function).

  In addition, inundation time series data change is to switch display data when there is inundation time series data with different calculation conditions etc. at the same breach point. Specifically, from the [Setting] menu, [Change inundation time series data] A change screen is displayed by selecting a button (not shown).

  Furthermore, a facility attribute is mentioned as a data display confirmation function. Specifically, when [Facility Attribute] in the [Confirmation] menu is selected and the mouse is placed on the facility 12c displayed on the map screen 1a, as shown in FIG. The name 12a of 12b is displayed, and when the facility data 12b is further clicked, it is programmed so that detailed information can be displayed in the attribute value confirmation column 20 as shown in FIG. 16 (b).

  Further, by selecting [radius 2 km range] from the [confirmation] menu and clicking on the map screen 1a, as shown in FIG. 17A, a circle 21 having a radius of 2 km centered on the specified range can be displayed. By selecting [Ground Height Lowland] from the [Confirmation] menu and clicking on the map screen 1a, a range lower than the position of the designated altitude can be displayed with the gradation color 22 as shown in FIG. 17 (c). it can.

  Further, when selecting [Ground Height Low Range (Numerical Specification)] from the [Confirmation] menu and inputting a numerical value to the predetermined elevation value (m) 23a in the elevation value column 23 as shown in FIG. A range lower than the value can be displayed with the gradation color 23b. The display color, the number of gradations, and the gradation width can be set by [submersible depth display color / gradation change].

  The data display setting function includes facility data display switching and elevation data switching. The facility data switching is for switching the presence / absence of the symbol / note display of the facility data. Specifically, as shown in FIG. 19, the [facility data display switching] screen 24 of the [Setting] menu is selected and displayed. It is possible to switch by checking the item.

  Elevation data switching is to select altitude data used for various displays. Specifically, as shown in FIG. 20, the [Elevation data switching] screen 25 is selected from the [Setting] menu, and data is selected from the list. Select. 20B shows altitude data with a large mesh interval, and FIG. 20C shows altitude data with a small mesh interval.

  Further, the inundation highlighting function is highlighted when the facility point enters the inundation assumed area during continuous display of the assumed inundation area. In addition, the inundation range display function displays the maximum inundation range at each breakwater point, and the inundation depth time-series display function assumes the elapsed time after the bank breakage and sets the estimated inundation area according to the inundation depth. Are displayed in different colors.

3. Evacuation Information Related Function The facility information data 4 has an evacuation information related function that has both a facility information display function and an evacuation area display function. The facility information display function displays facility information and details of the facility information. Specifically, it displays various attributes such as the name and the number of people that can be accommodated, and displays the location and name of the facility on the map screen 1a or the detailed information of the designated facility. Furthermore, the legend of the facility display can be displayed, and the symbol of the facility and the presence / absence of the note display can be switched (see FIGS. 13, 14, and 16).

  The evacuation area display function displays the walking evacuable area from any point, and specifically displays a circle within a 2 km radius from the designated point for reference when making an evacuation plan. (See FIG. 17 (a)).

4). Ground height related function The altitude data 3 has a ground height related function including a ground height display function and an altitude difference display function. The ground height display function displays the ground height at an arbitrary point, and the altitude difference display function displays a place where the altitude is lower than the arbitrary point according to the altitude difference. Specifically, a range in which the altitude is lower than the designated point is displayed in gradation color, or a range in which the elevation is lower than the designated elevation value is displayed in gradation color (see FIG. 17C). The altitude data to be used can be switched.

5. Simple Print / Screen Copy Function The simple print function prints the displayed screen with the specified paper size, along with the name of the bank post and the elapsed time after the bank break. The preview can be viewed, and the area that enters the paper (even outside the screen display area) can be printed with the center of the displayed screen as the center of the paper.

  Specifically, in addition to printing the contents of the map screen along with the title and scale, the bank breakage simulation display screen also prints the breakwater point name and elapsed time. Also, the print result can be confirmed on the screen in advance (print preview), and the screen copy function can copy the specified range on the map screen to the clipboard.

  In addition, when printing with the bank breakpoint selected, the bank breakpoint name is printed and displayed at the lower right, and a specific elapsed time is displayed (for example, when the [Confirm] button is selected after displaying the inundation simulation) The program is programmed so that the elapsed time can be printed.

  The moving inundation assumed area viewer system A of the present invention configured as described above uses the background map data 1 as raster data (image data), and applies anti-aliasing processing to make a steep gradation change into a stepwise change. The processed data can be displayed based on geographic coordinates.

  The index map (wide area map) 2a indicates where the displayed map is displayed on the entire map with a frame line. The index map frame display is linked to the displayed map. This is convenient.

  In addition, the inundation depth related function can display the maximum inundation area for each breach point because the maximum inundation area of all inundation points can be combined and displayed in different colors according to the inundation depth. Yes (see Figure 2).

  In addition, the elapsed time after the bank break is specified, and the estimated inundation area at that time is displayed in different colors according to the inundation depth (see Fig. 10). Can be displayed in different colors (inundation area display function of the breakwater point).

  Moreover, when the inundation assumption area is displayed continuously, the point of the facility and the name of the facility are highlighted when they enter the inundation assumption area, so you can visually appeal that the danger is imminent. (Inundation highlighting function).

  Furthermore, it is possible to change the display color for each rank of inundation depth, add, change, delete the inundation depth ranking, and automatically assign the inundation depth ranking and its rank display color ( Automatic rank setting function).

  In addition, it is possible to display a walking evacuable area from an arbitrary point on the map 1a and display a ground height at an arbitrary point on the map 1a (see FIG. 17). At that time, the place where the altitude is lower than the arbitrary point is displayed in different colors according to the altitude difference (altitude difference display function).

  In addition, it is possible to measure the topographic cross section of an arbitrary section and its distance, display the water level cross section of an arbitrary section, and easily measure the area of a specified range, so it is convenient (See FIGS. 3, 4, and 12).

  Incidentally, GIS (Geographic Information System) data has river base map data, river backbone database, river environment information map data, basin ground environment data, and has three functions: spatial database, spatial analysis tool and mapping tool. , Information on all maps can be integrated using the “position element” as a key.

  Therefore, the information integrated into the spatial database can be obtained by analyzing the evacuation route in the river basin, for example, by associating with the position, so that the flood simulation result can be displayed in real time on the viewer system. it can.

  In this way, GIS data has two types of information, spatial data + attribute data, and is managed in association with each other, for example, managing graphic data of rivers and river names / river basin names together. Is possible.

  In addition, the moving inundation assumption area viewer system of this invention is not limited to a present Example, It can change freely within the range of the objective of this invention, and this invention includes all of them. Is.

  For example, the dynamic display means mentioned in this specification is an inundation area map that displays the results of inundation analysis calculations in an animated manner. It goes without saying that more detailed inundation information and evacuation information can be displayed not only by displaying the inundation depth but also by processing the calculation result data.

  In addition, based on levee shape data, planned high water flow rate, or flood forecast information, it is assumed that the river overflows / breakpoints in a given area, and is obtained from observation of topography in the flooding area including the assumed overflows / breakwaters. It is possible to analyze the combined terrain / elevation data in combination, predict the flooding condition in real time based on the analysis result, and use the GIS data to make it visually visible .

It is a principal part schematic explanatory drawing which shows the whole this viewer system. It is explanatory drawing which shows the viewer screen of this viewer system. Fig. 3 (a) shows the cross-section / distance measurement of this viewer system. Fig. 3 (a) is an explanatory diagram showing a state in which a broken line is connected to the map screen. Fig. 3 (b) is the distance between the start and end points along the broken line and the topography. It is a graph which shows a cross section. FIG. 4A is an explanatory diagram showing area measurement of the viewer system, and FIG. 4B is an explanatory diagram showing an area button. It is explanatory drawing which shows the content of the inundation assumption area of this viewer system. It is explanatory drawing which shows the display of the bank breakage point of this viewer system. It is explanatory drawing which shows the bank breakpoint search of this viewer system. It is explanatory drawing which shows the maximum range which the time series data of the selected breakwater point takes. It is explanatory drawing which shows the inundation simulation display of this viewer system. It is explanatory drawing which shows the continuous display of the inundation simulation of this viewer system. It is explanatory drawing which shows the simulation result in the elapsed time of the selected bank breakpoint. Fig. 12 (a) shows the ground level, the inundation depth / inundation level / high water level, and Fig. 12 (b) shows the topography and distance. It is a water level sectional view shown. It is explanatory drawing which shows the flood related information of this viewer system. FIG. 14A is an explanatory diagram showing the facility inundation status of the viewer system, FIG. 14B is an explanatory diagram showing the facility name list, and FIG. 14C is an explanatory diagram showing confirmation of the attribute value. It is explanatory drawing which shows the damage prediction of this viewer system. FIG. 15A is an explanatory diagram showing facility attributes of the viewer system, and FIG. 15B is an explanatory diagram showing confirmation of the attribute values. FIG. 17A is an explanatory diagram showing confirmation of the radius 2 km range of this viewer system, FIG. 17B is an explanatory diagram showing the ground level and low ground, and FIG. 17C is an explanatory diagram showing a range lower than the designated altitude. It is. It is explanatory drawing which shows the altitude value designation | designated screen of this viewer system. It is explanatory drawing which shows the data display setting screen of this viewer system. 20A is an explanatory diagram showing an elevation data switching screen of this viewer system, FIG. 20B is an explanatory diagram showing a data screen with a large mesh interval, and FIG. 20C shows a data screen with a small mesh interval. It is explanatory drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Background map data 1A Background map conversion data 1a Background map 1b Inundation depth legend 1c Scale bar 2 Inundation assumption area data 2A Inundation assumption area conversion data 2a Wide area map (index)
3 Elevation Data 3A Elevation Conversion Data 3a Status Bar 4 Facility Data 4A Facility Information Conversion Data 5 Damage Prediction Data 5a Damage Prediction Conversion Data 6 Data Conversion Program 7 Line 7a Topographical Section Graph 8 Polygon 9 Area 10 Content Toolbar
10a Inundation assumption area button
10b Red dot 11 Breakpoint search dialog
11a List of all breakwaters
11b Map search button
11c Blue dot
11d Gray 12 Simulation display operation dialog
12a Name of facility
12b Facility data
12c Map screen 13 Operation dialog
13A Simulation results
13a Arrow button
13b Start elapsed time
13c End elapsed time
13d Display speed adjustment
13e Confirm button
13f Cancel button 14 Water level cross section
14a polyline
14b Graph 15 Water depth related information 16 Facility inundation dialog
16a Facility flooding status column
16b Facility name list button 17 Facility name list dialog
17a Facility name list column
17b Facility attribute display button 18 Attribute value confirmation dialog
18a Attribute confirmation column 19 Damage prediction information
19a CSV button 20 Attribute value confirmation column 21 Circle with radius 2 km 22 Tone color 23 Elevation value column
23a Altitude (m)
23b Tone color 24 Facility data switching screen 25 Elevation data switching screen

Claims (3)

In a viewer system that uses a map image as a background, based on geographic coordinates, necessary data such as background map data, assumed inundation area data, elevation data, facility data, damage prediction data, and inundation by breach point and time series A moving inundation assumption area viewer system characterized by comprising dynamic display means for dynamically displaying an inundation analysis result of an assumed area map. The necessary data includes background map data to be displayed on the background of the map screen, breach point data that is position information of the breach point and the overflow line, and a flooding time series in which the flooding simulation result of the assumed breach point is recorded every hour. Data, inundation-related data collected at the same time when displaying inundation simulation, information such as the number of inundation population, the number of inundated houses, the amount of damage, etc. displayed at the time of breach point selection or for each breach point and time series Damage prediction data, ground elevation, numerical elevation data representing high water level, facility data representing facility locations and details such as evacuation sites and public facilities, hospitals, inundation assumed area data representing the assumed inundation area, wide area map The moving inundation assumption area viewer system according to claim 1, wherein all or any of the index data for selecting is selected or combined. The dynamic display means includes an inundation simulation display function for displaying the inundation simulation result of the selected bank breakage point, a map display function for displaying a background map based on geographical coordinates, and where the displayed map is located. Index display function to display the displayed wide area map, inundation depth related function to display the maximum inundation range of all breach points by color depending on the inundation depth, and inundation range to display the maximum inundation range for each breach point Display function, inundation depth time-series display function that displays the expected inundation area by color according to the inundation depth, assuming the elapsed time after the bank breakage, and the inundation assumption area continuously according to the inundation depth until the specified elapsed time Inundation depth display setting function for color-coded display, facility information display function for displaying facility information and details of facility information, estimated damage amount per bank breakage point or time series, number of flooded population, number of flooded houses, etc. A damage display function, a function to display the inundation calculation area according to each inundation calculation pattern by setting up and calculating the inundation calculation pattern of rainfall waveform, rainfall scale, and bank breakage width for each breakwater point, Inundation highlighting function that highlights when facility point enters inundation assumed area during continuous display, display color change function to change display color by rank of inundation depth, and inundation to display ranking of inundation depth Display function by depth rank, automatic rank setting function that automatically assigns the inundation depth rank, display color, evacuation area display function that displays walkable evacuation area from any point, and ground height at any point Ground height display function, altitude difference display function that displays colors according to the altitude difference in places where the altitude is lower than an arbitrary point, screen print function that prints the displayed screen, and arbitrary section Select or combine all or any of the cross-section / distance measurement function to measure the surface display and distance, the water level cross-section drawing function to display the water level cross-sectional view of any section, and the area measurement function to measure the area by specifying the range The moving inundation assumption area viewer system according to claim 1 characterized by things.