WinScanopy 提供了功能强大、使用方面的软件来分析半球影像和处理测量结果。相片使用180度鱼眼镜头和高清晰度数码相机从植物冠层下方或森林地面向上取像获得。取像时需要天空光照条件是均匀的,例如在日出前或日落后的短时间内或天空光线均匀的阴天。数码相机安放在安放在"O" MOUNT 自动平衡定位环上,无论以什么角度来安放相机,都可以确保相机保持水平,North finder北轴标记来辅助影像的定位。
将数码相机的高清晰度影像载入Scanopy软件时非常容易的,即不需要胶片,也不需要扫描,即节约时间,又节约开销。 Scanopy 通过处理影像数据文件来获取与冠层结构有关的,例如叶面积指数、光照间隙及间隙分布状况。通过分析辐射数据的相关信息,, Scanopy 能够测算出冠层截获的PAR以及冠层下方的辐射水平。其软件可以计算辐射指标、冠层指标、测量地点的光线覆盖状况及直射与漫射光的分布;的图形处理使数据更加形象化,数据可以以好几种通用格式输出。
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新增Mask功能:View caps 屏蔽某一影像区域,以便对特定的区域中作出有效的直接分析。可在0-360度转角和方向内任意设定,突破了其它公司产品中对45, 90, 180 or 270角度方向上的限制。
· 图表分析功能:直接辐射、漫辐射、总辐射变化;一天内每隔小时内的冠层上下的辐射变化;季节内特定天内的每天辐射变化;GAP随每个提升高度或方向上,以及LAD叶面积指数的变化。
Gap fractions per elevation or azimuthal direction
Radiation level per hour of the day for the active suntrack
Radiation level per day
Leaf angle distribution
其它显示图表类型:
Sunfleck frequency distribution (number in function of duration in minutes)
Sunfleck duration (total in minutes) per day of the growing season
通 过 Scanopy 可 以 得 到 的 参 数
通 过 Scanopy 可 以 得 到 的 参 数 | |
LAI | 每个云底亮度图的部分区域及整个影像的叶面积指数(四种方法) |
LAD | 不同角度上的叶面积指数 |
SkyPix | 每个云底亮度图区域上的像素 |
SkyValid | 每个云底亮度图区域上像素的有效部分 |
SunPix | 每个sunmap区域上的像素 |
SunValid | 每个sunmap区域上像素的有效部分 |
DifMonth | 每月的漫射光部分 |
ELADP | 椭圆叶角分布参数 |
MLA | 平均叶角 |
GndCover | 地面被冠层覆盖的部分 |
LAIDev | 通过影像来均一化冠层 |
基本技术指标:
测量参数 | 基本版 | 标准版 | 专业版 |
透光面积 | Yes | Yes | Yes |
间隙指数 | Yes | Yes | Yes |
叶面积指数(LAI) | No | Yes | Yes |
叶分配角(LAD),平均叶角(MLA) | No | Yes | Yes |
光散射 | Yes | Yes | Yes |
直接辐射通量 | No | Yes | Yes |
特殊时期的间接辐射部分 | Yes | Yes | Yes |
特殊时期的直接辐射及总辐射部分 | No | Yes | Yes |
实际阳光辐射率大小 | No | Yes | Yes |
半球效应 | No | Yes | Yes |
独立和交互式的冠层间隙分析 | No | No | Yes |
地面坡度 | No | Yes | Yes |
天空区域数量 | Yes | Yes | Yes |
聚集因子 | No | Yes | Yes |
产地:加拿大 Regent
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