Projects 5
Publications 40
Awards 0

Biography

I graduated in 2005 with a PhD in Geographical Sciences from the University of Queensland. My focus was on mapping live coral cover using remote sensing. Using my remote sensing expertise for a variety of applications, I have since worked as a Geomatic Engineering Officer in the Australian Army, developed models for spatially explicit mapping of recreation opportunities across New Zealand’s conservation estate, and developed techniques for integrating remote sensing into all phases of the disaster management cycle. My primary area of interest is in creating, applying and automating remote sensing tools for environmental monitoring and management problems. While the environmental target may vary from marine and coastal through to savanna ecosystems, my common approach is to optimise models to quantify, extract, and communicate information from Earth observation data. 

I am the co-founder of the certified social enterprise She Maps, and the co-founder of GeoNadir.

Research

Projects

Output

Pell, Taleatha; Li, Joan Y.Q.; Joyce, Karen E. (2022) 'Demystifying the Differences between Structure-from-Motion Software Packages for Pre-Processing Drone Data'. Drones, 6 (1). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Cornet, Valerie J.; Joyce, Karen E. (2021) 'Assessing the potential of remotely-sensed drone spectroscopy to determine live coral cover on Heron Reef'. Drones, 5 (2). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Younes, Nicolas; Joyce, Karen E.; Maier, Stefan M. (2021) 'All models of satellite-derived phenology are wrong, but some are useful: a case study from northern Australia'. International Journal of Applied Earth Observation and Geoinformation, 97 (102285). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Oleksyn, Semonn; Tosetto, Louise; Raoult, Vincent; Joyce, Karen E.; Williamson, Jane E. (2021) 'Going batty: the challenges and opportunities of using drones to monitor the behaviour and habitat use of rays'. Drones, 5 (1). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Williamson, Jane E.; Duce, Stephanie; Joyce, Karen E.; Raoult, Vincent (2021) 'Putting sea cucumbers on the map: projected holothurian bioturbation rates on a coral reef scale'. Coral Reefs, 40 :559-569. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Li, Joan Y.Q.; Duce, Stephanie; Joyce, Karen E.; Xiang, Wei (2021) 'SeeCucumbers: using deep learning and drone iagery to detect sea cucumbers on coral reef flats'. Drones, 5 (2). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Dierssen, Heidi M.; Ackleson, Steven G.; Joyce, Karen E.; Hestir, Erin L.; Castagna, Alexandre; Lavender, Samantha; McManus, Margaret A. (2021) 'Living up to the hype of hyperspectral aquatic remote sensing: science, resources and outlook'. Frontiers in Environmental Science, 9 . [DOI]
Journal Publication Open Access ResearchOnline@JCU
Hickey, Sharyn M.; Radford, Ben; Roelfsema, Chris M.; Joyce, Karen E.; Wilson, Shaun K.; Marrable, Daniel; Barker, Kathryn; Wyatt, Mathew; Davies, Harriet N.; Leon, Javier X.; Duncan, John; Holmes, Thomas H.; Kendrick, Alan J.; Callow, J. Nikolaus; Murray, Kathy (2020) 'Between a reef and a hard place: capacity to map the next coral reef catastrophe'. Frontiers in Marine Science, 7 . [DOI]
Journal Publication Open Access ResearchOnline@JCU
Younes, Nicolas; Northfield, Tobin D.; Joyce, Karen E.; Maier, Stefan W.; Duke, Norman C.; Lymburner, Leo (2020) 'A novel approach to modelling mangrove phenology from satellite images: a case study from Northern Australia'. Remote Sensing, 12 (24). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Joyce, Karen E.; Meiklejohn, Natalie; Mead, Paul C.H. (2020) 'Using minidrones to teach geospatial technology fundamentals'. Drones, 4 (3). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Bennett, Mary K.; Younes Cardenas, Nicolas; Joyce, Karen E. (2020) 'Automating drone image processing to map coral reef substrates using Google Earth Engine'. Drones, 4 (3). [DOI]
Journal Publication Open Access ResearchOnline@JCU
Boyden, James; Wurm, Penny; Joyce, Karen E.; Boggs, Guy (2019) 'The spatial dynamics of invasive para grass on a monsoonal floodplain, Kakadu National Park, northern Australia'. Remote Sensing, 11 (18):2090-2128. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Joyce, K.E.; Duce, S.; Leahy, S.M.; Leon, J.; Maier, S.W. (2019) 'Principles and practice of acquiring drone-based image data in marine environments'. Marine and Freshwater Research, 70 (7):952-963. [DOI]
Journal Publication ResearchOnline@JCU
Younes, Nicolas; Joyce, Karen E.; Northfield, Tobin D.; Maier, Stefan W. (2019) 'The effects of water depth on estimating Fractional Vegetation Cover in mangrove forests'. International Journal of Applied Earth Observation and Geoinformation, 83 . [DOI]
Journal Publication ResearchOnline@JCU
Boyden, James; Wurm, Penelope; Joyce, Karen E.; Boggs, Guy (2018) 'A spatial vulnerability assessment of monsoonal wetland habitats to para grass invasion in Kakadu National Park, northern Australia'. International Journal of Applied Earth Observation and Geoinformation, 71 :43-55. [DOI]
Journal Publication ResearchOnline@JCU
Younes Cárdenas, Nicolás; Joyce, Karen E.; Maier, Stefan W. (2017) 'Monitoring mangrove forests: are we taking full advantage of technology?'. International Journal of Applied Earth Observation and Geoinformation, 63 :1-14. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Hamylton, Sarah M.; Duce, Stephanie; Vila-Concejo, Ana; Roelfsema, Chris M.; Phinn, Stuart R.; Carvalho, Rafael C.; Shaw, Emily C.; Joyce, Karen E. (2017) 'Estimating regional coral reef calcium carbonate production from remotely sensed seafloor maps'. Remote Sensing of Environment, 201 :88-98. [DOI]
Journal Publication ResearchOnline@JCU
Wilson, Laura J.; Fulton, Christopher J.; Hogg, Andrew McC.; Joyce, Karen E.; Radford, Ben T.M.; Fraser, Ceridwen I. (2016) 'Climate-driven changes to ocean circulation and their inferred impacts on marine dispersal patterns'. Global Ecology and Biogeography, 25 (8):923-939. [DOI]
Journal Publication ResearchOnline@JCU
Heenkenda, Muditha K.; Maier, Stefan W.; Joyce, Karen E. (2016) 'Estimating mangrove biophysical variables using Worldview-2 satellite data: Rapid Creek, Northern Territory, Australia'. Journal of Imaging, 2 (3):1-19. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Heenkenda, Muditha K.; Joyce, Karen E.; Maier, Stefan W. (2015) 'Mangrove tree crown delineation from high-resolution imagery'. Photogrammetric Engineering & Remote Sensing, 81 (6):471-479. [DOI]
Journal Publication ResearchOnline@JCU
Heenkenda, Muditha K.; Joyce, Karen E.; Maier, Stefan W.; de Bruin, Sytze (2015) 'Quantifying mangrove chlorophyll from high spatial resolution imagery'. ISPRS Journal of Photogrammetry and Remote Sensing, 108 :234-244. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Boitshwarelo, Bopelo; Phinn, Stuart R.; Hill, Greg J.E.; Kelly, Gail D. (2014) 'Interactive online tools for enhancing student learning experiences in remote sensing'. Journal of Geography in Higher Education, 38 (3):431-439. [DOI]
Journal Publication ResearchOnline@JCU
Cowley, Robyn A.; Hearnden, Mark N.; Joyce, Karen E.; Tovar-Valencia, Miguel; Cowley, Trisha M.; Pettit, Caroline L.; Dyer, Rodd M. (2014) 'How hot? How often? Getting the fire frequency and timing right for optimal management of woody cover and pasture composition in northern Australian grazed tropical savannas. Kidman Springs Fire Experiment 1993-2013'. Rangeland Journal, 36 (4):323-345. [DOI]
Journal Publication ResearchOnline@JCU
Leiper, Ian A.; Phinn, Stuart R.; Roelfsema, Chris M.; Joyce, Karen E.; Dekker, Arnold G. (2014) 'Mapping coral reef benthos, substrates, and bathymetry, using Compact Airborne Spectrographic Imager (CASI) data'. Remote Sensing, 6 :6423-6445. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Joyce, K.E.; Samsonov, S.V.; Levick, S.R.; Engelbrecht, J.; Belliss, S. (2014) 'Mapping and monitoring geological hazards using optical, LiDAR, and synthetic aperture RADAR image data'. Natural Hazards, 73 (2):137-163. [DOI]
Journal Publication ResearchOnline@JCU
Heenkenda, Muditha K.; Joyce, Karen E.; Maier, Stefan W.; Bartolo, Renee (2014) 'Mangrove species identification: comparing WorldView-2 with aerial photographs'. Remote Sensing, 6 :6064-6088. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Joyce, Karen E.; Phinn, Stuart R.; Roelfsema, Chris M. (2013) 'Live coral cover index testing and application with hyperspectral airborne image data'. Remote Sensing, 5 (11):6116-6137. [DOI]
Journal Publication Open Access ResearchOnline@JCU
Joyce, Karen E.; Phinn, Stuart R. (2013) 'Spectral index development for mapping live coral cover'. Journal of Applied Remote Sensing, 7 (1):1-20. [DOI]
Journal Publication ResearchOnline@JCU
Boyden, James; Joyce, Karen E.; Boggs, Guy; Wurm, Penny (2013) 'Object-based mapping of native vegetation and para grass (Urochloa mutica) on a monsoonal wetland of Kakadu NP using a Landsat 5 TM Dry-season time series'. Journal of Spatial Science, 58 (1):53-77. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Samsonov, Sergey; Manville, Vern; Jongens, Richard; Graettinger, Alison; Cronin, Shane J. (2009) 'Remote sensing data types and techniques for lahar path detection: a case study at Mt Ruapehu, New Zealand'. Remote Sensing of Environment, 113 (8):1778-1786. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen; Sutton, Steve (2009) 'A method for automatic generation of the Recreation Opportunity Spectrum in New Zealand'. Applied Geography, 29 (3):409-418. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Belliss, Stella E.; Samsonov, Sergey V.; McNeill, Stephen J.; Glassey, Phil J. (2009) 'A review of the status of satellite remote sensing and image processing techniques for mapping natural hazards and disasters'. Progress in Physical Geography, 33 (2):183-207. [DOI]
Journal Publication ResearchOnline@JCU
Hedley, J.D.; Mumby, P.J.; Joyce, K.E.; Phinn, S.R. (2004) 'Spectral unmixing of coral reef benthos under ideal conditions'. Coral Reefs, 23 (1):60-73. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, K.E.; Phinn, S.R.; Roelfsema, C.M.; Neil, D.T.; Dennison, W.C. (2004) 'Combining landsat ETM and reef check classifications for mapping coral reefs: a critical assessment from the southern Great Barrier Reef, Australia'. Coral Reefs, 23 (1):21-25. [DOI]
Journal Publication ResearchOnline@JCU
Andréfouet, Serge; Kramer, Philip; Torres-Pulliza, Damaris; Joyce, Karen E.; Hochberg, Eric J.; Garza-Pérez, Rodrigo; Mumby, Peter J.; Riegl, Bernhard; Yamano, Hiroya; White, William H.; Zubia, Mayalen; Brock, John C.; Phinn, Stuart R.; Naseer, Abdulla; Hatcher, Bruce G.; Muller-Karger, Frank E. (2003) 'Multi-site evaluation of IKONOS data for classification of tropical coral reef environments'. Remote Sensing of Environment, 88 (1-2):128-143. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Phinn, Stuart R. (2003) 'Hyperspectral analysis of chlorophyll content and photosynthetic capacity of coral reef substrates'. Limnology and Oceanography, 48 (1 part 2):489-496. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Phinn, Stuart R. (2002) 'Bi-directional reflectance of corals'. International Journal of Remote Sensing, 23 (2):389-394. [DOI]
Journal Publication ResearchOnline@JCU
Joyce, Karen E.; Anderson, Karen; Bartolo, Renee E. (2021) 'Of course we fly unmanned—we're women!' Drones, 5 (1) . [DOI]
Journal Contribution Open Access ResearchOnline@JCU
Joyce, Karen E.; Phinn, Stuart R.; Roelfsema, Chris M. (2005) 'The costs and benefits of image acquisition and pre-processing for coral reef remote sensing' Backscatter - Journal of the Alliance for Marine Remote Sensing, 16 (1) :23-26.
Journal Contribution ResearchOnline@JCU
Joyce, K.E.; Stanford, M.; Phinn, S.R. (2002) 'Remote sensing requirements for coral reef monitoring' Backscatter-Journal of the Alliance for Marine Remote Sensing, 13 (1) :20-24.
Journal Contribution ResearchOnline@JCU