CN103791890A - Telemetering method for quick tidal wetland terrain measurement - Google Patents
Telemetering method for quick tidal wetland terrain measurement Download PDFInfo
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/04—Interpretation of pictures
- G01C11/06—Interpretation of pictures by comparison of two or more pictures of the same area
- G01C11/28—Special adaptation for recording picture point data, e.g. for profiles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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Abstract
The invention discloses a telemetering method for quick tidal wetland terrain measurement. The telemetering method comprises the steps of building more than two water level telemetering stations in a measured tidal wetland and relevant water domains, constructing a water level observation base line and a water level telemetering station network along the longitudinal direction of the measured water domain so as to perform real-time water level monitoring, and constructing observation water level lines at different time synchronous with an acquired telemetering image; acquiring multi-source and multi-temporal satellite telemetering image data of the monitored region, and extracting telemetering flowage lines at different water levels; performing synchronous water level assignment on each flowage line point on each telemetering flowage line, and constructing three-dimensional telemetering flowage lines; and constructing a tidal flat digital terrain model on the basis of a series of the three-dimensional telemetering flowage lines to finally finish the tidal wetland terrain map of a monitored region. According to the tidal terrain innovation method on the basis of satellite telemetering and a hydrologic network, the difficulty in conventional manual measurement on foot, shipborne radar field measurement and modern aerial radar measurement is overcome; the height accuracy of terrain measurement reaches the centimeter level.
Description
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. a remote sensing method of telemetering for beach wetland landform Quick Measurement, is characterized in that, 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;
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, utilizes the terrain data of actual measurement recently in monitored area, and the digital terrain generating is carried out to accuracy test, finally completes the beach wetland topomap of monitored area.
2. the remote sensing method of telemetering of a kind of beach wetland landform Quick Measurement according to claim 1, it is characterized in that, the baseline of water-level observation described in step 2 is formed by the connection broken line at more than two water level telemetering station, and its trend is longitudinally totally parallel with remote sensing flowage line.
3. the remote sensing method of telemetering of a kind of beach wetland landform Quick Measurement according to claim 1, it is characterized in that, the bit line of observation water described in step 2 is the on line of the synchronous waterlevel data that observes along each water level telemetering station of water-level observation baseline, adopt the matching of splines interpolation method to form, its trend is longitudinally totally parallel with remote sensing flowage line.
4. the remote sensing method of telemetering of a kind of beach wetland landform Quick Measurement according to claim 1, it is characterized in that, accuracy test described in step 6, 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.
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Cited By (10)
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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 |
| 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 |
| 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 |
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| CN112926468A (en) * | 2021-03-03 | 2021-06-08 | 河海大学 | Tidal flat elevation automatic extraction method |
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| CN104460343B (en) * | 2014-11-13 | 2017-08-08 | 长江水利委员会长江科学院 | A kind of river flood flooding inundation simulation method based on water level monitoring data |
| 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 |
| CN106846308B (en) * | 2017-01-20 | 2019-08-20 | 广州市城市规划勘测设计研究院 | The detection method and device of topographic map precision based on cloud |
| 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 | Method for reconstructing topography above beach withered water level based on time series remote sensing image 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 | Beach above-dry-water-level terrain reconstruction method 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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