Part of UKCEH UKCEH logo
UKCEH website
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

Download/Access
PLEASE NOTE: By accessing or using this dataset, you agree to the terms of the relevant licence agreement(s). You will ensure that this dataset is cited in any publication that describes research in which the data have been used.

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

Download the data

Bulk download options

You can use WGET to download data. For example
wget --user=YOUR_USERNAME --password=YOUR_PASSWORD --auth-no-challenge https://catalogue.ceh.ac.uk/datastore/eidchub/a1c0f869-6e03-4902-af94-31e90ba141a0

Further information and help »

https://doi.org/10.5285/a1c0f869-6e03-4902-af94-31e90ba141a0
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
33 downloads *
894 views *

More information

View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)

Format

jpg

Spatial information

Study area
Spatial representation type
Raster
Spatial reference system
WGS 84

Temporal information

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.

Licensing and constraints

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

Cite this dataset as:
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

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

Rights holder
Imperial College London
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
biota
environment
Keywords
Caatinga , canopy and tree architecture , leaf area index
Funding
Natural Environment Research Council Award: NE/N012526/1
Last updated
04 March 2024 17:18