UAV remote sensing image and model product data set in demonstration area (2019-2021)- A Big Earth Data Platform for Three Poles

On October 24, 2019 and June 9, 2021, the special group conducted UAV flight operations in the debris flow gullies of Jilong gully, Tianmo gully and Guxiang gully in Bomi County, Nyingchi City, Tibet Autonomous Region, and generated the real three-dimensional model and digital surface model (DSM) of the debris flow gully in the demonstration area; In 2020, he worked in Kada village, Bomi county and generated real 3D model, digital surface model, digital orthophoto (DOM) and digital elevation model (DEM); On June 9, 2021, it was operated again in guxianggou to obtain the real 3D model and digital surface model. The spatial resolution of the above products is about 0.1M, and the main processing methods are as follows:

(1) The real scene 3D modeling method based on UAV remote sensing can obtain rich texture information and generate dense 3D point clouds by using UAV photogrammetry technology. Combined with automatic real scene 3D modeling technology, the real 3D scene can be obtained.

(2) The obtained three-dimensional model is optimized by cavity repair and filtering, which effectively fills the water cavity in the three-dimensional model.

(3) Based on 3D modeling, DSM data of the demonstration area can be directly generated in CC.

(4) Use mapmatrix to interpolate the polygon of DSM, erase the height of vegetation and other ground objects, and get DEM data.

(5) The accuracy of 3D modeling is optimized by pricking operation.

File naming and required software

The data set contains 5 compressed files, 2019 data of 3 debris flow gullies and 2021 data, which are named Jilong gully 2019 Rar, tianmogou, 2019 Rar, Guxiang 2019 Rar, Guxiang 2021 zip。 Here are the following:
1. Jilonggou 2019 Zip, which is the data acquisition and processing of jilonggou in 2019, including 3D model data (file path: / jilonggou 2019 / 3D modeling / production_water.3mx, viewed with acute3d viewer), DSM data (/ jilonggou 2019 / DSM, viewed with envi), and original image data (/ jilonggou 2019 / flight image);
2. Tianmogou 2019 Zip is the data acquisition and processing of Tianmo ditch in 2019, including 3D model data (/ 3D modeling / production_1.3mx, viewed with acute3d viewer), DSM data (/ DSM, viewed with envi), and original image data (/ flight image);
3. Guxianggou 2019 Zip, which is the data acquisition and processing of guxianggou in 2019, including 3D model data (/ guxianggou 2019 / 3D modeling / production_1.3mx, viewed with acute3d viewer), DSM data (/ guxianggou 2019 / DSM / guxianggou 2019_dsm.tif, viewed with envi), and original image data (/ guxianggou 2019 / flight image);
4. Kada village 2020 Zip refers to the data collection and processing of Kada village in 2020, including three-dimensional model data (/ Kada village 2020 / Kada Village processing data results / three-dimensional model / production_2 / production_2.s3c, viewed with acute3d viewer), DSM data (/ Kada village 2020 / Kada Village processing data results / DSM / 20201212-daka_dsm.tif, viewed with envi), DOM data (/ Kada village 2020 / Kada Village processing data result / DOM / 20201212 daka_mosaic_group1.tif, viewed with envi), DEM data (/ Kada village 2020 / Kada Village processing data result / DEM / kada_dem.tif, viewed with envi), and original image data (/ Kada village 2020 / Kada village UAV image data);
5. Guxianggou 2021 Zip is the data collection and processing of guxianggou in 2021, including 3D model data (/ 3D modeling / production_3.s3cnew.s3c, viewed with acute3d viewer), DSM data (/ DSM, viewed with envi), and original image data (/ flight image);.

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Cite as:

Huang, F., Peng, S. (2022). UAV remote sensing image and model product data set in demonstration area (2019-2021). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Terre.tpdc.272044. CSTR: 18406.11.Terre.tpdc.272044. (Download the reference： RIS | Bibtex )

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