A method for evaluating groundwater resources adapted to complex aquifer systems

Abstract

This invention provides a groundwater resource assessment method adapted to complex aquifer systems, relating to the fields of hydrogeology and water resources technology. The method involves acquiring basic geographic data, basic geological data, and water resources assessment data for the unit to be evaluated; based on the basic geographic and geological data, performing 3D modeling in Surfer software to obtain a hydrogeological 3D model of the unit to be evaluated; according to the water resources assessment data, cutting the hydrogeological 3D model along a river cross-section to obtain a hydrogeological 3D model cut map; using Canvas to configure groundwater recharge and discharge items on the hydrogeological 3D model cut map, and reading the configuration file on a web interface to dynamically display the groundwater recharge and discharge items of the hydrogeological 3D model of the unit to be evaluated. This method is adaptable to multiple types of aquifer systems nationwide and can perform modeling analysis and evaluation based on the actual conditions of the evaluation area.

Description

Technical Field

[0001] This invention relates to the fields of hydrogeology and water resources technology, and in particular to a groundwater resource assessment method adapted to complex aquifer systems. Background Technology

[0002] Groundwater resource assessment is a process that uses suitable groundwater resource zones as evaluation units to assess the quantity, quality, and exploitable amount of groundwater resources, estimate groundwater storage, and evaluate its renewal and regulation capacity.

[0003] Conducting groundwater resource assessments plays a vital role in understanding the ecological status and changes of groundwater resources, establishing a groundwater resource database, rationally developing groundwater resources, and serving national spatial planning.

[0004] Currently, groundwater resource assessment mainly adopts the equilibrium method, and it is mainly concentrated on two-dimensional plane. However, my country has a vast surface area and complex and diverse aquifer systems. The recharge, runoff, and drainage conditions in different regions are different. Therefore, it is not possible to use one method to completely cover the groundwater resource assessment work across the country. Summary of the Invention

[0005] The purpose of this invention is to provide a groundwater resource assessment method adapted to complex aquifer systems, aiming to be applicable to multiple types of aquifer systems nationwide, and to perform modeling analysis and evaluation based on the actual conditions of the assessment area. The specific technical solution is as follows:

[0006] A groundwater resource assessment method adapted to complex aquifer systems, the method comprising the following steps:

[0007] S100. Obtain basic geographic data, basic geological data, and water resource assessment data for the unit to be evaluated.

[0008] S200. Based on the basic geographic data and basic geological data, a three-dimensional hydrogeological model of the unit to be evaluated is obtained by performing three-dimensional modeling in Surfer software; according to the water resources evaluation data, the hydrogeological three-dimensional model is cut along the river cross section and the indicator lines of groundwater recharge and discharge items are drawn to obtain the hydrogeological three-dimensional model cutting diagram.

[0009] S300: Use Canvas to configure groundwater resource replenishment and discharge items on the hydrogeological 3D model cutout map, and read the configuration file on the WEB terminal to dynamically display the groundwater resource replenishment and discharge items of the hydrogeological 3D model of the unit to be evaluated on the webpage.

[0010] Furthermore, in step S100, the basic geographic data includes river systems, administrative divisions within the evaluation unit, and geographic maps; the basic geological data includes regional geological maps and digital elevation models; and the water resource evaluation data includes groundwater recharge and discharge items for the unit to be evaluated.

[0011] Further, in step S200, obtaining the hydrogeological three-dimensional model of the unit to be evaluated by three-dimensional modeling in Surfer software includes the following steps: generating a three-dimensional base based on the elevation grid file; importing geological maps and geographic base maps; importing zoning boundary and water system files; and exporting geological codes and administrative region name labels.

[0012] Furthermore, in step S200, the river cross section is determined based on the seepage section of the river seepage replenishment amount in the water resource assessment data.

[0013] Further, in step S200, cutting and displaying the hydrogeological three-dimensional model along the river cross-section includes the following steps: drawing profile lines in ArcGIS according to the river cross-section, cutting partition files according to the profile lines, trimming elevation data of the two partitions after cutting, generating grids respectively, and generating two three-dimensional bases in Surfer.

[0014] Further, step S300 includes: using Canvas to configure the hydrogeological 3D model cutout to display groundwater seepage, groundwater flow direction, and flow velocity at the corresponding locations, and recording the movement mode through coordinate points and sequence; after the web system reads these configurations, it displays the animation through coordinate point locations and timestamp information.

[0015] Furthermore, step S300 also includes: when using the Canvas configuration, adding groundwater recharge and discharge data of the water resource assessment data to the drawing table.

[0016] Furthermore, the groundwater resource replenishment and discharge data include rainfall infiltration replenishment, river seepage replenishment, groundwater evaporation, and groundwater extraction.

[0017] The groundwater resource assessment method adapted to complex aquifer systems provided by this invention has the following beneficial effects:

[0018] This invention acquires basic geographic data, basic geological data, and water resource evaluation data of the unit to be evaluated; based on the basic geographic and geological data, it performs 3D modeling in Surfer software to obtain a hydrogeological 3D model of the unit to be evaluated; according to the water resource evaluation data, it cuts the hydrogeological 3D model along a river cross-section to obtain a hydrogeological 3D model cut map; it uses Canvas to configure groundwater recharge and discharge items on the hydrogeological 3D model cut map, and reads the configuration file on the WEB terminal to dynamically display the groundwater recharge and discharge items of the hydrogeological 3D model of the unit to be evaluated on the webpage; it can be adapted to multiple types of aquifers across the country and can perform modeling analysis and evaluation according to the actual situation of the evaluation area. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating a groundwater resource evaluation method adapted to complex aquifer systems provided by the present invention.

[0020] Figure 2 This is a general flowchart of a groundwater resource evaluation method adapted to complex aquifer systems provided by the present invention;

[0021] Figure 3 It is a cut-out diagram of a three-dimensional hydrogeological model that displays the dynamic three-dimensional water flow;

[0022] Figure 4 This is a web-based 3D display module and renderings for the groundwater assessment unit;

[0023] Figure 5 This is a schematic diagram of a three-dimensional model of groundwater resource replenishment and discharge items in a typical evaluation unit. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention.

[0025] Example 1

[0026] This embodiment provides a groundwater resource assessment method adapted to complex aquifer systems. (See reference...) Figure 1-4 As shown, the method includes the following steps:

[0027] S100. Obtain basic geographic data, basic geological data, and water resource evaluation data for the unit to be evaluated.

[0028] Specifically, the basic geographic data includes river systems, administrative divisions (cities, counties, districts) within the evaluation unit, and geographic maps (ocean); the basic geological data includes regional geological maps and digital elevation models (DEM); and the water resources evaluation data includes groundwater recharge and discharge items for the unit to be evaluated.

[0029] An evaluation unit refers to a groundwater resource zone of an appropriate level selected for conducting groundwater resource evaluations. Groundwater resource zones of levels 1-6 are designated by the Ministry of Natural Resources and distributed to provinces for evaluation purposes.

[0030] Water resources assessment data can be collected from the national online groundwater resources assessment system.

[0031] S200. Based on the basic geographic data and basic geological data, a three-dimensional hydrogeological model of the unit to be evaluated is obtained by performing three-dimensional modeling in Surfer software; according to the water resources evaluation data, the three-dimensional hydrogeological model is cut along the river cross section and an indicator line of groundwater recharge and discharge items is drawn to obtain a cutting map of the three-dimensional hydrogeological model.

[0032] In one embodiment, obtaining a hydrogeological 3D model of the unit to be evaluated by performing 3D modeling in Surfer software includes the following steps: generating a 3D base based on an elevation grid file; importing geological maps and geographic base maps; importing zoning boundary and water system files; and exporting geological codes and administrative region name labels.

[0033] In one embodiment, a river cross section is determined based on the seepage section of the river seepage recharge from the water resources assessment data.

[0034] In one embodiment, the process of cutting and displaying the hydrogeological 3D model along the river cross-section includes the following steps: drawing profile lines in ArcGIS based on the river cross-section, cutting partition files based on the profile lines, trimming elevation data from the two partitions after cutting, generating grids respectively, and generating two 3D bases in Surfer.

[0035] In this embodiment of the invention, based on the collected DEM data, regional geological maps, geographical maps, water systems, administrative divisions, and other basic geological and geographical data, a three-dimensional model is created in Surfer software to obtain a hydrogeological three-dimensional model of the evaluation unit. The three-dimensional model of the evaluation unit is then cut and displayed according to the seepage sections of the river seepage recharge volume. After cutting, wells, water levels, groundwater flow lines, etc., can be drawn on the cut surfaces, allowing for a direct view of groundwater flow direction, groundwater surface, groundwater evaporation, groundwater extraction, etc., to more intuitively demonstrate the groundwater resource recharge and discharge items of the evaluation unit.

[0036] S300: Use Canvas to configure groundwater resource replenishment and discharge items on the hydrogeological 3D model cutout map, and read the configuration file on the WEB terminal to dynamically display the groundwater resource replenishment and discharge items of the hydrogeological 3D model of the unit to be evaluated on the webpage.

[0037] Canvas technology and its advanced features, combined with the encapsulation principles and higher-order syntax of ES6 classes and the advanced rendering features of CSS3, enable a variety of animations and special effects. It also utilizes an API based on OpenLayers6 to configure animations and effects on 3D models, images, maps, and other service layers. Employing a black-box programming approach, all configurable options are provided through a unified entry point, allowing non-developers to configure custom animations and effects, significantly lowering the barrier to entry and increasing flexibility.

[0038] In one embodiment, step S300 includes: using Canvas to configure the hydrogeological 3D model cutout to display groundwater seepage, groundwater flow direction, and flow velocity at the corresponding locations, and recording the movement mode through coordinate points and sequence; after the web system reads these configurations, it displays the animation through coordinate point locations and timestamp information.

[0039] In one embodiment, step S300 further includes: when using the Canvas configuration, adding groundwater recharge and discharge data of water resource assessment data to the drawing table.

[0040] In one embodiment, see Figure 5 As shown, the groundwater resource recharge and discharge data include rainfall infiltration recharge, river seepage recharge, groundwater evaporation, and groundwater extraction.

[0041] The groundwater resource assessment method for complex aquifer systems provided by this invention involves acquiring basic geographic data, basic geological data, and water resource assessment data for the unit to be evaluated; based on the basic geographic and geological data, performing 3D modeling in Surfer software to obtain a hydrogeological 3D model of the unit to be evaluated; according to the water resource assessment data, cutting the hydrogeological 3D model along a river cross-section to obtain a hydrogeological 3D model cut map; using Canvas to configure groundwater recharge and discharge items on the hydrogeological 3D model cut map, and reading the configuration file on the WEB terminal to dynamically display the groundwater recharge and discharge items of the hydrogeological 3D model of the unit to be evaluated on the webpage; it can be adapted to multiple types of aquifer systems nationwide and can perform modeling analysis and evaluation according to the actual situation of the evaluation area.

[0042] Those skilled in the art should understand that the present invention can be implemented in many other specific forms without departing from the spirit and scope of the invention. Any changes or modifications made by those skilled in the art based on the embodiments of the present invention and the above disclosure shall fall within the protection scope of the claims.

Claims

1. A groundwater resource assessment method adapted to complex aquifer systems, characterized in that, The method includes the following steps: S100. Obtain basic geographic data, basic geological data, and water resource assessment data for the unit to be evaluated. S200. Based on the basic geographic data and basic geological data, a three-dimensional hydrogeological model of the unit to be evaluated is obtained by performing three-dimensional modeling in Surfer software; according to the water resources evaluation data, the hydrogeological three-dimensional model is cut along the river cross section and the indicator lines of groundwater recharge and discharge items are drawn to obtain the hydrogeological three-dimensional model cutting diagram. S300: Use Canvas to configure groundwater resource replenishment and discharge items on the hydrogeological 3D model cutout map, and read the configuration file on the WEB terminal to dynamically display the groundwater resource replenishment and discharge items of the hydrogeological 3D model of the unit to be evaluated on the webpage.

2. The groundwater resource assessment method adapted to complex aquifer systems according to claim 1, characterized in that, In step S100, the basic geographic data includes river systems, administrative divisions within the evaluation unit, and geographic maps; the basic geological data includes regional geological maps and digital elevation models; and the water resources evaluation data includes groundwater recharge and discharge items for the unit to be evaluated.

3. The groundwater resource assessment method adapted to complex aquifer systems according to claim 2, characterized in that, In step S200, obtaining the hydrogeological three-dimensional model of the unit to be evaluated by performing three-dimensional modeling in Surfer software includes the following steps: generating a three-dimensional base based on the elevation grid file; importing geological maps and geographic base maps; importing zoning boundary and water system files; and exporting geological codes and administrative region name labels.

4. The groundwater resource assessment method adapted to complex aquifer systems according to claim 2, characterized in that, In step S200, the river cross section is determined based on the seepage section of the river seepage recharge amount in the water resources assessment data.

5. The groundwater resource assessment method adapted to complex aquifer systems according to claim 2, characterized in that, In step S200, the process of cutting and displaying the hydrogeological 3D model along the river cross-section includes the following steps: drawing profile lines in ArcGIS based on the river cross-section, cutting partition files based on the profile lines, trimming elevation data from the two partitions after cutting, generating grids respectively, and generating two 3D bases in Surfer.

6. The groundwater resource assessment method adapted to complex aquifer systems according to claim 1, characterized in that, Step S300 includes: using Canvas to configure the hydrogeological 3D model cutout to display groundwater seepage, groundwater flow direction, and flow velocity at the corresponding locations, and recording the movement mode through coordinate points and sequence; after the web system reads these configurations, it displays the animation through coordinate point locations and timestamp information.

7. The groundwater resource assessment method adapted to complex aquifer systems according to claim 6, characterized in that, Step S300 also includes: when using the Canvas configuration, adding groundwater recharge and discharge data of the water resource assessment data to the drawing table.

8. The groundwater resource assessment method adapted to complex aquifer systems according to claim 7, characterized in that, Groundwater resource replenishment and discharge data include rainfall infiltration replenishment, river seepage replenishment, groundwater evaporation, and groundwater extraction.

Images