fd_hemi_camera provides a data set of hemispherical canopy imagery.

fd_hemi_camera()

Value

A data.frame or tibble. Call fd_metadata for field metadata.

Details

Hemispherical imagery is collected using a 24 Megapixel Sony 6000 DSLR Compact 2571 camera (Regent Instruments; Quebec, QU, Canada) with a 180° hemispherical lens. The blue channel of the camera is replaced with a near-infrared channel, which allows direct calculation of plant greenness as the normalized difference vegetation index (NDVI). See fd_remote_sensing_vignette for more details.

Note

Data were collected by Jeff W. Atkins (2018, 2019, 2020) and Evan Paris (2019)

Examples

fd_hemi_camera()
#> These data are unpublished. Please contact Jeff Atkins to ask about using
#> Data citation: ESSD
#> Contact person: Jeff Atkins