Moura, M.S.B.; Veenendaal, E.M.; Lloyd, J.; Brunello, A.T.; Miranda, R.Q.; Ishida, F.Y.

Hemispherical photographs for estimation of leaf area index of Caatinga vegetation in Brazil, 2017-2019

The dataset contains raw hemispherical photographs of canopy structure representative for 0.5 ha permanent plots (26) across Caatinga area in Brazil. The photographs were taken between March 2017 and August 2019, using a digital camera (NIKON D100) with a Sigma 4.5 mm F2.8 fisheye lens.

When processed the photos provide a representative value of LAI (Leaf area index) for the plot.

Publication date: 2021-07-22

Get the data

This dataset is available under the terms of the Open Government Licence

Format of the data: jpg

You must cite: Moura, M.S.B.; Veenendaal, E.M.; Lloyd, J.; Brunello, A.T.; Miranda, R.Q.; Ishida, F.Y. (2021). Hemispherical photographs for estimation of leaf area index of Caatinga vegetation in Brazil, 2017-2019. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/a1c0f869-6e03-4902-af94-31e90ba141a0

 

Where/When

Study area
Temporal extent
2017-03-01    to    2019-08-31

Provenance & quality

The photos were taken using a digital camera (NIKON D100) with a Sigma 4.5 mm F2.8 fisheye lens. Under overcast sky conditions one picture was taken on each intersection of four subplots resulting in a total of 36 photos in each plot for 12 plots. For other sites, one photo was taken at the centre of the subplot. Pictures were taken with the top of the camera facing North at a height of approximately 1 m. The quantity of photos for each plot may vary because in some occasions there was a problem with the trigger bottom of the camera, or rapid changes in sky conditions precluded taking a picture at that location or necessitated rejection of the image afterwards. When processed the photos provide a representative value of LAI for the whole plot, not for individual subplots as the image, depending on vegetation height, may include tree canopies up to 20 m distance from the camera.

Correspondence/contact details

Dr Magna Soelma Beserra de Moura
Brazilian Agriculture Research Corporation - Embrapa
 Magna.moura@embrapa.br

Authors

Moura, M.S.B.
Brazilian Agriculture Research Corporation - Embrapa
Veenendaal, E.M.
Wageningen University
Lloyd, J.
Imperial College London
Brunello, A.T.
University of Sao Paulo
Miranda, R.Q.
Federal University of Pernambuco
Ishida, F.Y.
James Cook University

Other contacts

Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Rights Holder
Imperial College London
 magna.moura@embrapa.br

Additional metadata

Topic categories
Biota , Environment
Keywords
Caatinga,  canopy and tree architecture,  leaf area index
INSPIRE Theme
Environmental Monitoring Facilities
Spatial representation type
Raster
Spatial reference system
WGS 84
Last updated
30 November 2021 08:59