Relative Density Canopy Cover Outputs for Leon Lidar data in the Florida Panhandle 2018
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Forest cover and density metrics (RDCC) extracted from 2018 Lidar in the Florida panhandle Leon. These 5m horizontal resolution rasters consist of 28 bands of forest cover and density metrics created using the lidR R software package from 2018 Lidar data. The 28 bands are listed in the following table:
RDCC Band
lidR short name
Metric Description
Band 1
Num_Returns
Total number of returns in cell
Band 2
Num_GrndRet
Number of ground returns in cell
Band 3
Num_1stRet
Number of first returns in cell
Band 4
Grnd_Elev
Ground Elevations (above geoid, etc)
Band 5
Mn_RH
Mean of all Relative Heights
Band 6
SD_RH
Std. Dev of all Relative heights
Band 7
RHt_95th
Relative Height 95%
Band 8
RHt_90th
Relative Height 90%
Band 9
RHt_75th
Relative Height 75%
Band 10
RHt_50th
Relative Height 50%
Band 11
RHt_25th
Relative Height 25%
Band 12
RHt_10th
Relative Height 10%
Band 13
RHt_05th
Relative Height 5%
Band 14
RD_2to10ft
Relative Density 2 to 10 ft (Shrubs)
Band 15
RD_10to20ft
Relative Density 10 to 20 ft (High shrub/low midstory)
Band 16
RD_20to49ft
Relative Density 20 to 49 ft (High midstory)
Band 17
RD_gt2ft
Relative Density all returns gt 2 ft (for comp w/ CC)
Band 18
RD_gt10ft
Relative Density all returns gt 10 ft (for comp w/ CC)
Band 19
RD_gt20ft
Relative Density all returns gt 20 ft (for comp w/ CC)
Band 20
RD_gt49ft
Relative Density greater than 49 ft (Canopy)
Band 21
CC_gt2ft
Canopy Cover gt 2 ft (based only on first returns)
Band 22
CC_gt10ft
Canopy Cover gt 10 ft (based only on first returns)
Band 23
CC_gt20ft
Canopy Cover gt 20 ft (based only on first returns)
Band 24
CC_gt49ft
Canopy Cover gt 49 ft (based only on first returns)
Band 25
MnRHgt2ft
Mean of all relative heights gt 2 ft (includes shrubs, midstory and upper canopy)
Band 26
MnRHgt10ft
Mean of all relative heights gt 10 ft (includes all midstory and upper canopy)
Band 27
MnRHgt20ft
Mean of all relative heights gt 20 ft (includes high midstory and upper canopy)
Band 28
MnRHgt49ft
Mean of all relative heights gt 49 ft (includes upper canopy)
Full descriptions of the creation of these raster outputs is available in the companion publication - https://www.mdpi.com/2072-4292/13/23/4763
从佛罗里达狭长地带Leon地区2018年激光雷达(Lidar)数据中提取的森林覆盖与密度指标(RDCC)。这套水平分辨率为5米的栅格数据集包含28个森林覆盖与密度指标波段,所有波段均通过lidR R软件包基于2018年激光雷达数据生成。28个波段详情如下表所示:
| RDCC波段 | lidR短名称 | 指标说明 |
| ---- | ---- | ---- |
| 波段1 | Num_Returns | 单元格内总回波数 |
| 波段2 | Num_GrndRet | 单元格内地表回波数 |
| 波段3 | Num_1stRet | 单元格内首次回波数 |
| 波段4 | Grnd_Elev | 地面高程(基于大地水准面等) |
| 波段5 | Mn_RH | 所有相对高度的平均值 |
| 波段6 | SD_RH | 所有相对高度的标准差 |
| 波段7 | RHt_95th | 95%分位相对高度 |
| 波段8 | RHt_90th | 90%分位相对高度 |
| 波段9 | RHt_75th | 75%分位相对高度 |
| 波段10 | RHt_50th | 50%分位相对高度 |
| 波段11 | RHt_25th | 25%分位相对高度 |
| 波段12 | RHt_10th | 10%分位相对高度 |
| 波段13 | RHt_05th | 5%分位相对高度 |
| 波段14 | RD_2to10ft | 2至10英尺相对密度(对应灌木层) |
| 波段15 | RD_10to20ft | 10至20英尺相对密度(对应高灌木/低层林下层) |
| 波段16 | RD_20to49ft | 20至49英尺相对密度(对应高层林下层) |
| 波段17 | RD_gt2ft | 高度大于2英尺的所有回波相对密度(用于与冠层覆盖度对比) |
| 波段18 | RD_gt10ft | 高度大于10英尺的所有回波相对密度(用于与冠层覆盖度对比) |
| 波段19 | RD_gt20ft | 高度大于20英尺的所有回波相对密度(用于与冠层覆盖度对比) |
| 波段20 | RD_gt49ft | 高度大于49英尺的相对密度(对应冠层) |
| 波段21 | CC_gt2ft | 高度大于2英尺的冠层覆盖度(仅基于首次回波计算) |
| 波段22 | CC_gt10ft | 高度大于10英尺的冠层覆盖度(仅基于首次回波计算) |
| 波段23 | CC_gt20ft | 高度大于20英尺的冠层覆盖度(仅基于首次回波计算) |
| 波段24 | CC_gt49ft | 高度大于49英尺的冠层覆盖度(仅基于首次回波计算) |
| 波段25 | MnRHgt2ft | 高度大于2英尺的所有相对高度平均值(涵盖灌木层、林下层及上层冠层) |
| 波段26 | MnRHgt10ft | 高度大于10英尺的所有相对高度平均值(涵盖所有林下层及上层冠层) |
| 波段27 | MnRHgt20ft | 高度大于20英尺的所有相对高度平均值(涵盖高层林下层及上层冠层) |
| 波段28 | MnRHgt49ft | 高度大于49英尺的所有相对高度平均值(涵盖上层冠层) |
该套栅格数据的完整生成方法可参考配套学术论文:https://www.mdpi.com/2072-4292/13/23/4763
创建时间:
2023-08-10



