All Outputs (5)

Deriving leaf area index reference maps using temporally continuous data: a comparison of upscaling approaches (2020)
Journal Article
Brown, L., Ogutu, B., Camacho, F., Fuster, B., & Dash, J. (2020). Deriving leaf area index reference maps using temporally continuous data: a comparison of upscaling approaches. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 14, 624-630. https://doi.org/10.1109/JSTARS.2020.3040080

To further progress the validation of global leaf area index (LAI) products, temporally continuous reference data are a key requirement, as periodic field campaigns fail to adequately characterize temporal dynamics. Progress in cost-effective automat... Read More about Deriving leaf area index reference maps using temporally continuous data: a comparison of upscaling approaches.

Low-cost unmanned aerial vehicle-based digital hemispherical photography for estimating leaf area index: a feasibility assessment (2020)
Journal Article
Brown, L., Sutherland, D., & Dash, J. (2020). Low-cost unmanned aerial vehicle-based digital hemispherical photography for estimating leaf area index: a feasibility assessment. International Journal of Remote Sensing, 41(23), 9064-9074. https://doi.org/10.1080/2150704X.2020.1802527

Unmanned aerial vehicles (UAVs) have the potential to provide highly detailed information on vegetation status useful in precision agriculture. However, challenges are associated with existing techniques for UAV-based retrieval of vegetation biophysi... Read More about Low-cost unmanned aerial vehicle-based digital hemispherical photography for estimating leaf area index: a feasibility assessment.

The Sentinel-3 OLCI Terrestrial Chlorophyll Index (OTCI): algorithm improvements, spatiotemporal consistency and continuity with the MERIS archive (2020)
Journal Article
Pastor-Guzman, J., Brown, L., Morris, H., Bourg, L., Goryl, P., Dransfeld, S., & Dash, J. (2020). The Sentinel-3 OLCI Terrestrial Chlorophyll Index (OTCI): algorithm improvements, spatiotemporal consistency and continuity with the MERIS archive. Remote Sensing, 12(16), https://doi.org/10.3390/rs12162652

The Ocean and Land Colour Instrument (OLCI) on-board Sentinel-3 (2016–present) was designed with similar mechanical and optical characteristics to the Envisat Medium Resolution Imaging Spectrometer (MERIS) (2002–2012) to ensure continuity with a numb... Read More about The Sentinel-3 OLCI Terrestrial Chlorophyll Index (OTCI): algorithm improvements, spatiotemporal consistency and continuity with the MERIS archive.

Evaluation of global leaf area index and fraction of absorbed photosynthetically active radiation products over North America using copernicus ground based observations for validation data (2020)
Journal Article
Brown, L., Meier, C., Morris, H., Pastor-Guzman, J., Bai, G., Lerebourg, C., …Dash, J. (2020). Evaluation of global leaf area index and fraction of absorbed photosynthetically active radiation products over North America using copernicus ground based observations for validation data. Remote Sensing of Environment, 247, https://doi.org/10.1016/j.rse.2020.111935

With a growing number of Earth observation (EO) products available through operational programmes such as the European Union’s Copernicus, there is increasing emphasis on product accuracy and uncertainty, necessitating evaluation against in situ refe... Read More about Evaluation of global leaf area index and fraction of absorbed photosynthetically active radiation products over North America using copernicus ground based observations for validation data.

Tracking forest biophysical properties with automated digital repeat photography: a fisheye perspective using digital hemispherical photography from below the canopy (2020)
Journal Article
Brown, L., Ogutu, B., & Dash, J. (2020). Tracking forest biophysical properties with automated digital repeat photography: a fisheye perspective using digital hemispherical photography from below the canopy. Agricultural and forest meteorology, 287, https://doi.org/10.1016/j.agrformet.2020.107944

In recent years, digital repeat photography has received increasing attention as an inexpensive means by which seasonal changes in vegetation canopies can be monitored. Offering automation and an increased measurement frequency, colour indices derive... Read More about Tracking forest biophysical properties with automated digital repeat photography: a fisheye perspective using digital hemispherical photography from below the canopy.