{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T16:53:24Z","timestamp":1775321604104,"version":"3.50.1"},"reference-count":84,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T00:00:00Z","timestamp":1658966400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The Victorian Department of Environment, Land, Water, and Planning (DELWP)","award":["094687"],"award-info":[{"award-number":["094687"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Monitoring forest structural properties is critical for a range of applications because structure is key to understanding and quantifying forest biophysical functioning, including stand dynamics, evapotranspiration, habitat, and recovery from disturbances. Monitoring of forest structural properties at desirable frequencies and cost globally is enabled by space-borne LiDAR missions such as the global ecosystem dynamics investigation (GEDI) mission. This study assessed the accuracy of GEDI estimates for canopy height, total plant area index (PAI), and vertical profile of plant area volume density (PAVD) and elevation over a gradient of canopy height and terrain slope, compared to estimates derived from airborne laser scanning (ALS) across two forest age-classes in the Central Highlands region of south-eastern Australia. ALS was used as a reference dataset for validation of GEDI (Version 2) dataset. Canopy height and total PAI analyses were carried out at the landscape level to understand the influence of beam-type, height of the canopy, and terrain slope. An assessment of GEDI\u2019s terrain elevation accuracy was also carried out at the landscape level. The PAVD profile evaluation was carried out using footprints grouped into two forest age-classes, based on the areas of mountain ash (Eucalyptus regnans) forest burnt in the Central Highlands during the 1939 and 2009 wildfires. The results indicate that although GEDI is found to significantly under-estimate the total PAI and slightly over-estimate the canopy height, the GEDI estimates of canopy height and the vertical PAVD profile (above 25 m) show a good level of accuracy. Both beam-types had comparable accuracies, with increasing slope having a slightly detrimental effect on accuracy. The elevation accuracy of GEDI found the RMSE to be 10.58 m and bias to be 1.28 m, with an R2 of 1.00. The results showed GEDI is suitable for canopy densities and height in complex forests of south-eastern Australia.<\/jats:p>","DOI":"10.3390\/rs14153615","type":"journal-article","created":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T22:43:26Z","timestamp":1659048206000},"page":"3615","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Performance of GEDI Space-Borne LiDAR for Quantifying Structural Variation in the Temperate Forests of South-Eastern Australia"],"prefix":"10.3390","volume":"14","author":[{"given":"Sonam","family":"Dhargay","sequence":"first","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"}]},{"given":"Christopher S.","family":"Lyell","sequence":"additional","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6007-2722","authenticated-orcid":false,"given":"Tegan P.","family":"Brown","sequence":"additional","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"},{"name":"US Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, Missoula, MT 59803, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5861-963X","authenticated-orcid":false,"given":"Assaf","family":"Inbar","sequence":"additional","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"},{"name":"Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW 2753, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1755-7334","authenticated-orcid":false,"given":"Gary J.","family":"Sheridan","sequence":"additional","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"}]},{"given":"Patrick N. J.","family":"Lane","sequence":"additional","affiliation":[{"name":"School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1016\/S0034-4257(99)00052-8","article-title":"Lidar Remote Sensing of the Canopy Structure and Biophysical Properties of Douglas-Fir Western Hemlock Forests","volume":"70","author":"Lefsky","year":"1999","journal-title":"Remote Sens. Environ."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1016\/j.agrformet.2004.02.005","article-title":"Estimation of Leaf Area Index and Covered Ground from Airborne Laser Scanner (Lidar) in Two Contrasting Forests","volume":"124","author":"Valladares","year":"2004","journal-title":"Agric. For. 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