Stage 1 Validation of Plant Area Index from the Global Ecosystem Dynamics Investigation (2023)
Journal Article
Brown, L. A., Morris, H., Meier, C., Knohl, A., Lanconelli, C., Gobron, N., …Danson, F. M. (2023). Stage 1 Validation of Plant Area Index from the Global Ecosystem Dynamics Investigation. IEEE Geoscience and Remote Sensing Letters, 1-1. https://doi.org/10.1109/lgrs.2023.3319528

The Global Ecosystem Dynamics Investigation (GEDI) aims to provide improved characterization of forest structure, and plant area index (PAI) is one of many variables provided in the official GEDI Level 2B (L2B) product suite. However, since release,... Read More about Stage 1 Validation of Plant Area Index from the Global Ecosystem Dynamics Investigation.

Terrestrial laser scanning in forest ecology : expanding the horizon (2020)
Journal Article
Calders, K., Adams, J., Armston, J., Bartholomeus, H., Bauwens, S., Patrick Bentley, L., …Verbeeck, H. (2020). Terrestrial laser scanning in forest ecology : expanding the horizon. Remote Sensing of Environment, 251, 112102. https://doi.org/10.1016/j.rse.2020.112102

Terrestrial laser scanning (TLS) was introduced for basic forest measurements, such as tree height and diameter, in the early 2000s. Recent advances in sensor and algorithm development have allowed us to assess in situ 3D forest structure explicitly... Read More about Terrestrial laser scanning in forest ecology : expanding the horizon.

Non-intersecting leaf insertion algorithm for tree structure models (2018)
Journal Article
Akerblom, M., Raumonen, P., Casella, E., Disney, M., Danson, F., Gaulton, R., …Kaasalainen, M. (2018). Non-intersecting leaf insertion algorithm for tree structure models. Interface Focus, 8(2), 20170045. https://doi.org/10.1098/rsfs.2017.0045

We present an algorithm and an implementation to insert broadleaves or needleleaves to a quantitative structure model according to an arbitrary distribution, and a data structure to store the required information efficiently. A structure model contai... Read More about Non-intersecting leaf insertion algorithm for tree structure models.

Spectral and spatial information from a novel dual-wavelength full-waveform terrestrial laser scanner for forest ecology (2018)
Journal Article
Danson, F., Schofield, L., & Sasse, F. (2018). Spectral and spatial information from a novel dual-wavelength full-waveform terrestrial laser scanner for forest ecology. Interface Focus, 8(2), https://doi.org/10.1098/rsfs.2017.0049

The Salford Advanced Laser Canopy Analyser (SALCA) is an experimental terrestrial laser scanner designed and built specifically to measure the structural and biophysical properties of forest canopies. SALCA is a pulsed dual-wavelength instrument with... Read More about Spectral and spatial information from a novel dual-wavelength full-waveform terrestrial laser scanner for forest ecology.

Angular reflectance of leaves with a dual-wavelength terrestrial lidar and its implications for leaf-bark separation and leaf moisture estimation (2017)
Journal Article
Hancock, S., Gaulton, R., & Danson, F. (2017). Angular reflectance of leaves with a dual-wavelength terrestrial lidar and its implications for leaf-bark separation and leaf moisture estimation. IEEE Transactions on Geoscience and Remote Sensing, 55(6), https://doi.org/10.1109/TGRS.2017.2652140

A new generation of multi-wavelength lidars offer the potential to measure the structure and biochemistry of vegetation simultaneously, using range resolved spectra indices to overcome the confounding effects in passive optical measurements. Howe... Read More about Angular reflectance of leaves with a dual-wavelength terrestrial lidar and its implications for leaf-bark separation and leaf moisture estimation.

Vegetation phenology and habitat discrimination : impacts for E.multilocularis transmission host modelling (2016)
Journal Article
Marston, C., Giraudoux, P., Armitage, R., Danson, F., Reynolds, S., Wang, Q., …Craig, P. (2016). Vegetation phenology and habitat discrimination : impacts for E.multilocularis transmission host modelling. Remote Sensing of Environment, 176, 320-327. https://doi.org/10.1016/j.rse.2016.02.015

Echinococcus multilocularis (Em), a parasitic tapeworm, is responsible for a significant burden of human disease across continental Asia. Here, we use a time-series of MODIS 16-day 250 m Enhanced Vegetation Index (EVI) satellite data to quantify the... Read More about Vegetation phenology and habitat discrimination : impacts for E.multilocularis transmission host modelling.

Waveform lidar over vegetation : An evaluation of inversion methods for estimating return energy (2015)
Journal Article
Hancock, S., Armston, J., Li, Z., Gaulton, R., Lewis, P., Disney, M., …Gaston, K. (2015). Waveform lidar over vegetation : An evaluation of inversion methods for estimating return energy. Remote Sensing of Environment, 164, 208-224. https://doi.org/10.1016/j.rse.2015.04.013

Full waveform lidar has a unique capability to characterise vegetation in more detail than any other practical method. The reflectance, calculated from the energy of lidar returns, is a key parameter for a wide range of applications and so it is vita... Read More about Waveform lidar over vegetation : An evaluation of inversion methods for estimating return energy.

A random forest approach for predicting the presence of Echinococcus multilocularis intermediate host Ochotona spp. presence in relation to landscape characteristics in western China (2014)
Journal Article
Marston, C., Danson, F., Armitage, R., Giradoux, P., Pleydell, D., Wang, Q., …Craig, P. (2014). A random forest approach for predicting the presence of Echinococcus multilocularis intermediate host Ochotona spp. presence in relation to landscape characteristics in western China. Applied Geography, 55, 176-183. https://doi.org/10.1016/j.apgeog.2014.09.001

Understanding distribution patterns of hosts implicated in the transmission of zoonotic disease remains a key goal of parasitology. Here, random forests are employed to model spatial patterns of the presence of the plateau pika (Ochotona spp.) smal... Read More about A random forest approach for predicting the presence of Echinococcus multilocularis intermediate host Ochotona spp. presence in relation to landscape characteristics in western China.

A combined model for improving estimation of atmospheric boundary layer height (2014)
Journal Article
Bachtiar, V., Davies, F., & Danson, F. (2014). A combined model for improving estimation of atmospheric boundary layer height. Atmospheric Environment, 98, 461-473. https://doi.org/10.1016/j.atmosenv.2014.09.028

Atmospheric boundary layer height is one of the most important parameters in atmospheric dispersion modelling because it has a large effect on predicted air quality. Comparisons between Atmospheric Dispersion Modelling System, version 4 (ADMS 4) and... Read More about A combined model for improving estimation of atmospheric boundary layer height.

Developing a dual-wavelength full-waveform terrestrial laser scanner to characterise forest canopy structure (2014)
Journal Article
Danson, F., Gaulton, R., Armitage, R., Mathias, D., Gunawan, O., Philip, L., …Ramirez, A. (2014). Developing a dual-wavelength full-waveform terrestrial laser scanner to characterise forest canopy structure. Agricultural and forest meteorology, 198, 7-14. https://doi.org/10.1016/j.agrformet.2014.07.007

The development of a dual-wavelength full-waveform terrestrial laser scanner to measure the three-dimensional structure of forest canopies is described, and field measurements used to evaluate and test the instrument measurement characteristics. The... Read More about Developing a dual-wavelength full-waveform terrestrial laser scanner to characterise forest canopy structure.

Optical medium spatial resolution satellite constellation data for monitoring woodland in the UK (2014)
Journal Article
Ogunbadewa, E., Armitage, R., & Danson, F. (2014). Optical medium spatial resolution satellite constellation data for monitoring woodland in the UK. Forests, 5(7), 1798-1814. https://doi.org/10.3390/f5071798

The aim of this study was to test the potential of a constellation of remote sensing satellites, the Disaster Monitoring Constellation (DMC), for retrieving a temporal record of forest leaf area index (LAI) in the United Kingdom (U.K.). Ground-based... Read More about Optical medium spatial resolution satellite constellation data for monitoring woodland in the UK.

The potential of dual-wavelength laser scanning for estimating vegetation moisture content (2013)
Journal Article
Gaulton, R., Danson, F., Ramirez Cardozo, F., & Gunawan, O. (2013). The potential of dual-wavelength laser scanning for estimating vegetation moisture content. Remote Sensing of Environment, 132, 32-39. https://doi.org/10.1016/j.rse.2013.01.001

Vegetation moisture content is an important early indicator of forest drought stress, disease and fire risk. Existing remote sensing techniques to measure biochemical properties of vegetation, such as Equivalent Water Thickness (EWT), are limited by... Read More about The potential of dual-wavelength laser scanning for estimating vegetation moisture content.

Testing the application of terrestrial laser scanning to measure forest canopy gap fraction (2013)
Journal Article
Ramirez Cardozo, F., Armitage, R., & Danson, F. (2013). Testing the application of terrestrial laser scanning to measure forest canopy gap fraction. Remote Sensing, 5(6), 3037-3056. https://doi.org/10.3390/rs5063037

Terrestrial laser scanners (TLS) have the potential to revolutionise measurement of the three-dimensional structure of vegetation canopies for applications in ecology, hydrology and climate change. This potential has been the subject of recent resear... Read More about Testing the application of terrestrial laser scanning to measure forest canopy gap fraction.

Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery (2012)
Thesis
Janardhan, V. Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery. (Thesis). University of Salford

Vegetation canopies represent the interface between the atmosphere and the biosphere and play an important role in determining energy and mass exchange. Accurate characterisation of vegetation canopy characteristics is therefore important to under... Read More about Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery.

Mapping fuel moisture content in upland vegetation using airborne hyperspectral imagery (2012)
Journal Article
Al-Moustafa, T., Armitage, R., & Danson, F. (2012). Mapping fuel moisture content in upland vegetation using airborne hyperspectral imagery. Remote Sensing of Environment, 127, 74-83. https://doi.org/10.1016/j.rse.2012.08.034

This paper tests the application of airborne hyperspectral image data for estimating live vegetation fuel moisture content (FMC) in a Calluna vulgaris-dominated semi-natural upland area in the United Kingdom. Airborne hyperspectral imagery was collec... Read More about Mapping fuel moisture content in upland vegetation using airborne hyperspectral imagery.

Terrestrial laser scanning to estimate plot-level forest canopy fuel properties (2011)
Journal Article
Garcia, M., Danson, F., Riano, D., Chuvieco, E., Ramirez Cardozo, F., & Bandugula, V. (2011). Terrestrial laser scanning to estimate plot-level forest canopy fuel properties. International Journal of Applied Earth Observation and Geoinformation, 13(4), 636-645. https://doi.org/10.1016/j.jag.2011.03.006

This paper evaluates the potential of a terrestrial laser scanner (TLS) to characterize forest canopy fuel characteristics at plot level. Several canopy properties, namely canopy height, canopy cover, canopy base height and fuel strata gap were est... Read More about Terrestrial laser scanning to estimate plot-level forest canopy fuel properties.

Multispectral and LiDAR data fusion for fuel type mapping using Support Vector Machine and decision rules (2011)
Journal Article
Garcia-Alonso, M., Riano, D., Chuvieco, E., Salas, J., & Danson, F. (2011). Multispectral and LiDAR data fusion for fuel type mapping using Support Vector Machine and decision rules. Remote Sensing of Environment, 115(6), 1369-1379. https://doi.org/10.1016/j.rse.2011.01.017

This paper presents a method for mapping fuel types using previous termLiDARnext term and previous termmultispectralnext termprevious termdatanext term. A two-phase classification method is proposed to discriminate the fuel classes of the Prometheus... Read More about Multispectral and LiDAR data fusion for fuel type mapping using Support Vector Machine and decision rules.

Estimating biomass carbon stocks for a Mediterranean forest in central Spain using LiDAR height and intensity data (2010)
Journal Article
García, M., Riaño, D., Chuvieco, E., & Danson, F. (2010). Estimating biomass carbon stocks for a Mediterranean forest in central Spain using LiDAR height and intensity data. Remote Sensing of Environment, 114(4), 816. https://doi.org/10.1016/j.rse.2009.11.021

Airborne and terrestrial laser scanning for measuring vegetation canopy structure (2009)
Book Chapter
Danson, F., Morsdorf, F., & Koetz, B. (2009). Airborne and terrestrial laser scanning for measuring vegetation canopy structure. In G. Heritage, & A. Large (Eds.), Laser Scanning for the Environmental Sciences (201-219). Wiley-Blackwell. https://doi.org/10.1002/9781444311952.ch13

Terrestrial vegetation covers 60% of the Earth’s land surface, varying spatially and temporally in cover, composition and function with climatic gradients and disturbance patterns. The vegetation canopy is the interface between the land surface and t... Read More about Airborne and terrestrial laser scanning for measuring vegetation canopy structure.

Forest canopy gap fraction from terrestrial laser scanning (2007)
Journal Article
Danson, F., Hetherington, D., Morsdorf, F., & et, A. (2007). Forest canopy gap fraction from terrestrial laser scanning. IEEE Geoscience and Remote Sensing Letters, 4(1), 157-160. https://doi.org/10.1109/LGRS.2006.887064

A terrestrial laser scanner (TLS) was used to measure canopy directional gap fraction distribution in forest stands in the Swiss National Park, eastern Switzerland. A scanner model was derived to determine the expected number of laser shots in al... Read More about Forest canopy gap fraction from terrestrial laser scanning.