CN103791890A - Telemetering method for quick tidal wetland terrain measurement - Google Patents

Telemetering method for quick tidal wetland terrain measurement Download PDF

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CN103791890A
CN103791890A CN201410041355.5A CN201410041355A CN103791890A CN 103791890 A CN103791890 A CN 103791890A CN 201410041355 A CN201410041355 A CN 201410041355A CN 103791890 A CN103791890 A CN 103791890A
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remote sensing
water
water level
tidal flat
telemetry
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丁贤荣
夏娟
康彦彦
茅志兵
孙玉龙
葛小平
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Hohai University HHU
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C11/00Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
    • G01C11/04Interpretation of pictures
    • G01C11/06Interpretation of pictures by comparison of two or more pictures of the same area
    • G01C11/28Special adaptation for recording picture point data, e.g. for profiles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

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Abstract

本发明公开了一种滩涂湿地地形快速测量的遥感遥测方法,在受测滩涂湿地及相关水域内建立两个以上的水位遥测站,沿受测水域纵向构建水位观测基线和水位遥测站网,进行水位实时监测,建立与获取遥感影像同步的不同时间的观测水位线;收集监测区域多源多时相卫星遥感影像数据,并提取不同水位的遥感水边线;对遥感水边线上的每个水边点进行同步水位赋值,建立三维遥感水边线;在系列三维遥感水边线的基础上建立滩涂数字地形模型,最终完成监测区域的滩涂湿地地形图。本发明是建立在卫星遥感和水文站网基础上的滩涂地形革新方法,克服了传统的人工徒步测量、船载雷达实地测量和现代航空雷达测量的测量困难,地形测量的高程精度达厘米级。

The invention discloses a remote sensing and telemetry method for rapid measurement of tidal flat topography. More than two water level telemetry stations are established in the tidal flat wetland and related waters to be measured, and a water level observation baseline and a water level telemetry station network are constructed longitudinally along the measured waters. Real-time monitoring of water level, establishing observation water level lines at different times that are synchronized with the acquisition of remote sensing images; collecting multi-source and multi-temporal satellite remote sensing image data in the monitoring area, and extracting remote sensing water edge lines at different water levels; for each water edge point on the remote sensing water edge line Carry out synchronous water level assignment to establish a 3D remote sensing water edge; build a tidal flat digital terrain model on the basis of a series of 3D remote sensing water edge, and finally complete the tidal flat wetland topographic map of the monitoring area. The invention is a tidal flat terrain innovation method based on satellite remote sensing and hydrological station network, which overcomes the measurement difficulties of traditional manual foot survey, shipborne radar field survey and modern aerial radar survey, and the height accuracy of topographic survey reaches centimeter level.

Description

A kind of remote sensing method of telemetering of beach wetland landform Quick Measurement
Technical field
The present invention relates to a kind of topographic survey method, particularly relate to a kind of remote sensing method of telemetering of beach wetland landform Quick Measurement.
Background technology
True ground of traditional topographic survey method measuring method based on transit and modern total powerstation, it to the topographic technology path in region be by point to line again to the topographic survey method of face.Field survey operating condition is arduous, and efficiency is low, and financial resources consumption is large.
Bathymetric surveying is mainly that boat-carrying tester is measured.Bank region, rivers,lakes and seas shore beach blazons, and beach topographical surveying is a difficult problem for a long-term puzzlement, " beach in boat measurement difficulty, people surveys difficult lower water ".Boat-carrying is measured underwater topography method and is subject to boats and ships to need the just voyageable restriction of the enough depth of water (drinking water), and survey ship can not go deep into shallow water beach and measure.The beach depth of water is shallow slow, the especially beach of fluctuation of water table, and as the beach of tidal effect, manpower is measured current difficulty on foot, and beach mud is dark, beach falls into, groove is changeable, not only measures inefficiency, and has the person and device security risk.Thereby large area beach lacks actual measurement topographic(al) data for a long time, as the mud flat of Jiangsu off coast.
Photogrammetric is to be based upon atural object photogra to the optical image measuring method on basis.The method is suitable for the mountain and hill topographical surveying that topographic relief is larger, but beach wetland landform is very mild difficult, is difficult to form effective stereoscopic photograph picture pair, is unwell to beach wetland topographical surveying.
Airborne laser is surveyed and range measurement system technology (LiDAR) can obtain beach terrain information (Guo Q H on a large scale fast et al., 2010), Blott etc. use LiDAR data construct DEM(Blott S J at Britain Abbotts Hall seashore et al., 2004); But LiDAR technology is subject to the differences such as beach vegetation, quality, weather when testing and tidal conditions, and the multiple measurement factor such as production cost restriction, beach dynamically need aspect observation and historical development research a kind of large area synchronously, the method for Quick Measurement, LiDAR is still difficult to bring into play the effect of its long Serial monitoring.
Tidal flat landform inversion method achievement in research based on remote sensing flowage line is rich, and its principle is using flowage line as the altitude gauge of measuring tidal flat region elevation, and the horizontal level of land and water boundary line determines by flowage line, and vertical height information is from the tidal height in imaging moment.Use flowage line extracting method to extract flowage line, calculate Instantaneous Sea Level height in conjunction with dynamic model or measured profile data, can build tidal flat digital terrain (Mason D C et al., 1995,1997,2001; Ryu J H et al., 2002; White K et al., 1999; Han Zhen etc., 2005; Zheng Zongsheng etc., 2008).Forefathers often adopt the profile data of Hydrodynamic Model or actual measurement to carry out flowage line elevation assignment, for the tidal flat region of large-area shortage underwater topography data, the precision of Hydrodynamic Model simulation is not high, and artificial measured profile often can not meet large-scale assignment needs, the terrain error that therefore these two kinds of assignment methods obtain is all relatively large.In addition, not integrated synchronous water-level observation system of this type of flowage line method, the terrain data of inverting can be used for beach evolution analysis, has exercisable beach Geography monitor method system but be not enough to develop into.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of remote sensing method of telemetering of beach wetland landform Quick Measurement, integrated Modern Satellite remote sensing and hydrological telemetry, large area remote sensing Simultaneous Monitoring is combined with continuous water level remote measuring system, the elevation information integrated approach of water-level observation baseline and remote sensing flowage line has been proposed, two-dimentional remote sensing image data is converted into three beach terrain informations, sets up the method for fast measuring of the shore such as rivers,lakes and seas and reservoir seashore painting wetland landform.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A remote sensing method of telemetering for beach wetland landform Quick Measurement, comprises the following steps:
Step 1, determines scope and the monitoring time scope of monitoring beach wetland and relevant waters thereof;
Step 2, in monitored area, set up plural water level telemetering station, according to each waters hydraulic connection feature, longitudinally build water level telemetering station net and the water-level observation baseline of Real-Time Monitoring along monitored area simultaneously, extract the observation water bit line of different time on water-level observation baseline; Described water-level observation baseline is formed by the connection broken line at more than two water level telemetering station, and described observation water bit line is the on line of the measured water level data at the each water level telemetering station based on along water-level observation baseline, adopts the matching of splines interpolation method to form; All longitudinally totally parallel with remote sensing flowage line of the trend of described water-level observation baseline and observation water bit line;
Step 3, collects the multi-source multidate satellite remote-sensing image data of monitored area, and extracts two-dimentional remote sensing flowage line;
Step 4, the assignment method that adopts space to close on, waterside point on every remote sensing flowage line is made to vertical line to the observation water bit line of time synchronized, and the water level value of observation water bit line intersection point is assigned to corresponding remote sensing waterside point, the elevation information that completes one group of simultaneous observation waterline and remote sensing flowage line is integrated, by that analogy every two-dimentional remote sensing flowage line is converted into 3 D Remote Sensing flowage line, thereby obtains serial 3 D Remote Sensing flowage line;
Step 5, adopts Spatial Interpolation, according to serial 3 D Remote Sensing flowage line, builds beach wetland digital terrain model, generates the digital terrain of tested beach wetland;
Step 6, utilize the terrain data of actual measurement recently in monitored area, adopt the control methods of population mean elevation, in overlapping survey district or overlapping section, to the beach digital terrain of remote sensing remote measurement with recently survey landform and carry out accuracy test, finally complete the beach wetland topomap of monitored area.
The present invention adopts above technical scheme, the non-field survey technical method that adopts remote sensing remote measurement to combine, integrated Modern Satellite remote sensing and hydrological telemetry, solved the dimensional topography elevation information in beach terrain remote sensing image, can obtain centimetre-sized beach landform altitude information; Compared with prior art, can thoroughly solve traditional manually measure on foot, the measurement difficulty of shipborne radar field survey and modern Aviation radargrammetry, overcome LiDAR measurement simultaneously and be subject to the difficult problem such as restriction of weather and blank pipe.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Fig. 2 is the concrete implementing procedure figure as an example of Sandbanks in submarine radial sand ridges region, Jiangsu beach example.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, a kind of remote sensing method of telemetering of beach wetland landform Quick Measurement, comprises the following steps:
Step 1, determines scope and the monitoring time scope of monitoring beach wetland and relevant waters thereof;
Step 2, in monitored area, set up plural water level telemetering station, according to each waters hydraulic connection feature, longitudinally build water level telemetering station net and the water-level observation baseline of Real-Time Monitoring along monitored area simultaneously, extract the observation water bit line of different time on water-level observation baseline; Described water-level observation baseline is formed by the connection broken line at more than two water level telemetering station, and described observation water bit line is the on line of the measured water level data at the each water level telemetering station based on along water-level observation baseline, adopts the matching of splines interpolation method to form; All longitudinally totally parallel with remote sensing flowage line of the trend of described water-level observation baseline and observation water bit line;
Step 3, collects the multi-source multidate satellite remote-sensing image data of monitored area, and extracts two-dimentional remote sensing flowage line;
Step 4, the assignment method that adopts space to close on, waterside point on every remote sensing flowage line is made to vertical line to the observation water bit line of time synchronized, and the water level value of observation water bit line intersection point is assigned to corresponding remote sensing waterside point, the elevation information that completes one group of simultaneous observation waterline and remote sensing flowage line is integrated, by that analogy every two-dimentional remote sensing flowage line is converted into 3 D Remote Sensing flowage line, thereby obtains serial 3 D Remote Sensing flowage line;
Step 5, adopts Spatial Interpolation, according to serial 3 D Remote Sensing flowage line, builds beach wetland digital terrain model, generates the digital terrain of tested beach wetland;
Step 6, utilize the terrain data of actual measurement recently in monitored area, adopt the control methods of population mean elevation, in overlapping survey district or overlapping section, to the beach digital terrain of remote sensing remote measurement with recently survey landform and carry out accuracy test, finally complete the beach wetland topomap of monitored area.
As shown in Figure 2, take Sandbanks in submarine radial sand ridges region, Jiangsu beach as example, technical scheme of the present invention is described in further detail:
1, the scope in definite monitoring beach wetland and relevant waters thereof is Jiangsu Sandbanks in submarine radial sand ridges beach, and monitoring time is 2013;
2, according to 6 water level telemetering stations in one's respective area, along longitudinally building water-level observation baseline and water level telemetering station net in region; According to water-level observation baseline (from shining sun river mouth, through strip mud, to oyster Ya mountain), adopt the matching of splines interpolation method, set up the observation water bit line of different time;
3, collect monitored area more than the 100 width HJ/TM multi-source multidate satellite remote-sensing image data in year April in October, 2012 to 2013, adopt the object-oriented space characteristics extraction module in ENVI to extract 35 remote sensing flowage lines;
4, waterline and the remote sensing flowage line on the synchronous observation base of select time done integrated pairing (35 groups), the assignment method that adopts space to close on, each waterside point on 35 remote sensing flowage lines is made to vertical line to the observation water bit line of time synchronized, and the water level value of intersection point is assigned to corresponding waterside point, the elevation information that completes 35 groups of simultaneous observation waterlines and remote sensing flowage line is integrated, obtains 35 3 D Remote Sensing flowage lines;
5, according to 35 3 D Remote Sensing flowage lines, in ArcGIS software, adopt Spatial Interpolation, build digital terrain model, generate 3300km 2the digital terrain of radiation dune ridge group tidal flat;
6, utilize the actual measurement topomap of strip mud region 1:1 in 2012 ten thousand, 1:5 ten thousand in 2009, the digital terrain generating is carried out to accuracy test, finally obtain Sandbanks in submarine radial sand ridges region, the Jiangsu beach topomap that landform spatial resolution is equivalent to 1:1 ten thousand plotting accuracies.
The above; it is only the embodiment in the present invention; but protection scope of the present invention is not limited to this; any people who is familiar with this technology is in the disclosed technical scope of the present invention; can understand conversion or the replacement expected; all should be encompassed in of the present invention comprise scope within, therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (4)

1.一种滩涂湿地地形快速测量的遥感遥测方法,其特征在于,包括以下步骤: 1. A remote sensing and telemetry method for rapid survey of tidal flat topography, is characterized in that, comprises the following steps: 步骤1,确定监测滩涂湿地及其相关水域的范围和监测时间范围; Step 1, determine the monitoring scope and monitoring time range of tidal flat wetlands and related waters; 步骤2,在监测区域内建立两个以上的水位遥测站,同时根据各水域水力联系特征,沿监测区域纵向构建实时监测的水位遥测站网和水位观测基线,提取水位观测基线上不同时间的观测水位线; Step 2: Establish more than two water level telemetering stations in the monitoring area, and at the same time, according to the hydraulic connection characteristics of each water area, build a real-time monitoring water level telemetering station network and water level observation baseline along the longitudinal direction of the monitoring area, and extract observations at different times on the water level observation baseline water line; 步骤3,收集监测区域的多源多时相卫星遥感影像数据,并提取二维遥感水边线; Step 3, collect the multi-source multi-temporal satellite remote sensing image data of the monitoring area, and extract the two-dimensional remote sensing water edge; 步骤4,采用空间临近的赋值方法,将每条遥感水边线上的水边点向时间同步的观测水位线作垂线,并将观测水位线垂足的水位值赋给对应的遥感水边点,完成一组同步观测水位线和遥感水边线的高程信息集成,以此类推将每条二维遥感水边线转化为三维遥感水边线,从而获得系列三维遥感水边线; Step 4: Use the spatial proximity assignment method to make the water edge points on each remote sensing water edge line perpendicular to the time-synchronized observation water level line, and assign the water level value at the foot of the observed water level line to the corresponding remote sensing water edge point , complete the elevation information integration of a set of synchronously observed water level lines and remote sensing water edges, and so on, convert each 2D remote sensing water edge into a 3D remote sensing water edge, thus obtaining a series of 3D remote sensing water edges; 步骤5,采用空间内插方法,根据系列三维遥感水边线,构建滩涂湿地数字地形模型,生成受测滩涂湿地的数字地形; Step 5, using the spatial interpolation method to construct a digital terrain model of the tidal flat wetland based on the series of three-dimensional remote sensing water edges, and generate the digital terrain of the tidal flat wetland to be measured; 步骤6,利用监测区域内的新近实测地形数据,对生成的数字地形进行精度检验,最终完成监测区域的滩涂湿地地形图。 Step 6: Use the newly measured terrain data in the monitoring area to check the accuracy of the generated digital terrain, and finally complete the tidal flat wetland topographic map of the monitoring area. 2.根据权利要求1所述的一种滩涂湿地地形快速测量的遥感遥测方法,其特征在于,步骤2中所述水位观测基线由两个以上水位遥测站的连接折线形成,其走向与遥感水边线的纵向总体平行。 2. The remote-sensing and telemetry method for fast surveying of tidal flat wetland topography according to claim 1, characterized in that the water level observation baseline in step 2 is formed by the connecting broken lines of more than two water-level telemetry stations, and its direction is similar to that of the remote sensing water. The longitudinal direction of the side lines is generally parallel. 3.根据权利要求1所述的一种滩涂湿地地形快速测量的遥感遥测方法,其特征在于,步骤2中所述观测水位线是沿水位观测基线的各水位遥测站观测到的同步水位数据的联线,采用样条函数插值方法拟合形成,其走向与遥感水边线的纵向总体平行。 3. The remote sensing and telemetry method of a kind of tidal flat wetland topography rapid survey according to claim 1, is characterized in that, the observation water level line described in step 2 is the synchronous water level data that each water level telemetry station observes along the water level observation baseline The connection line is formed by fitting with the spline function interpolation method, and its direction is generally parallel to the longitudinal direction of the remote sensing water edge line. 4.根据权利要求1所述的一种滩涂湿地地形快速测量的遥感遥测方法,其特征在于,步骤6中所述精度检验,采用总体平均高程对比方法,在重叠测区或重叠断面,对遥感遥测的滩涂数字地形与新近实测地形进行精度检验。 4. The remote sensing and telemetry method of a kind of tidal flat wetland topography fast measurement according to claim 1, it is characterized in that, the accuracy inspection described in step 6 adopts the overall average elevation comparison method, in overlapping survey areas or overlapping sections, for remote sensing The accuracy of telemetry tidal flat digital topography and newly measured topography is checked.
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WO2018153143A1 (en) * 2017-02-22 2018-08-30 河海大学 Method for measuring mudflat elevation by remotely sensed water content
CN109737921A (en) * 2019-01-31 2019-05-10 交通运输部天津水运工程科学研究所 A kind of beach topographic survey method using unmanned plane tracking flowage line
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CN111324952A (en) * 2020-02-17 2020-06-23 中国科学院水利部成都山地灾害与环境研究所 Ice lake volume estimation method for acquiring water level based on multi-source remote sensing data
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CN111951392A (en) * 2020-07-26 2020-11-17 长江水利委员会长江科学院 A Terrain Reconstruction Method Above Low Water Level in Continental Beaches Based on Time Series Remote Sensing Images and Water Level Monitoring Data
CN112433227A (en) * 2021-01-28 2021-03-02 中国地质大学(武汉) Water capacity change monitoring method and system, terminal equipment and storage medium
CN112926468A (en) * 2021-03-03 2021-06-08 河海大学 Tidal flat elevation automatic extraction method

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CN104460343A (en) * 2014-11-13 2015-03-25 长江水利委员会长江科学院 Riverway flood inundation simulation method based on water level monitoring data
CN106846308A (en) * 2017-01-20 2017-06-13 广州市城市规划勘测设计研究院 The detection method and device of the topographic map precision based on a cloud
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WO2018153143A1 (en) * 2017-02-22 2018-08-30 河海大学 Method for measuring mudflat elevation by remotely sensed water content
US11150231B2 (en) 2017-02-22 2021-10-19 Hohai University Method for measuring a mudflat elevation by remotely sensed water content
CN109737921B (en) * 2019-01-31 2021-08-24 交通运输部天津水运工程科学研究所 Beach terrain measurement method for tracking water line by using unmanned aerial vehicle
CN109737921A (en) * 2019-01-31 2019-05-10 交通运输部天津水运工程科学研究所 A kind of beach topographic survey method using unmanned plane tracking flowage line
CN110488292A (en) * 2019-08-23 2019-11-22 长沙天仪空间科技研究院有限公司 A kind of remote sensing system based on satellites formation
CN110488292B (en) * 2019-08-23 2021-04-13 长沙天仪空间科技研究院有限公司 Remote sensing system based on satellite formation
CN111324952A (en) * 2020-02-17 2020-06-23 中国科学院水利部成都山地灾害与环境研究所 Ice lake volume estimation method for acquiring water level based on multi-source remote sensing data
CN111324952B (en) * 2020-02-17 2023-09-01 中国科学院水利部成都山地灾害与环境研究所 Ice lake volume estimation method for acquiring water level based on multi-source remote sensing data
CN111680606A (en) * 2020-06-03 2020-09-18 淮河水利委员会水文局(信息中心) Low-power-consumption water level remote measuring system based on artificial intelligence cloud identification water gauge
CN111680606B (en) * 2020-06-03 2021-11-23 淮河水利委员会水文局(信息中心) Low-power-consumption water level remote measuring system based on artificial intelligence cloud identification water gauge
CN111951392B (en) * 2020-07-26 2023-04-25 长江水利委员会长江科学院 A Reconstruction Method of Terrain Above Low Water Level on the Beach Based on Time Series Remote Sensing Images and Water Level Monitoring Data
CN111951392A (en) * 2020-07-26 2020-11-17 长江水利委员会长江科学院 A Terrain Reconstruction Method Above Low Water Level in Continental Beaches Based on Time Series Remote Sensing Images and Water Level Monitoring Data
CN112433227A (en) * 2021-01-28 2021-03-02 中国地质大学(武汉) Water capacity change monitoring method and system, terminal equipment and storage medium
CN112926468A (en) * 2021-03-03 2021-06-08 河海大学 Tidal flat elevation automatic extraction method
CN112926468B (en) * 2021-03-03 2023-06-02 河海大学 Tidal flat elevation automatic extraction method

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