000132135 001__ 132135
000132135 005__ 20240301161206.0
000132135 0247_ $$2doi$$a10.3390/fire7020059
000132135 0248_ $$2sideral$$a137301
000132135 037__ $$aART-2024-137301
000132135 041__ $$aeng
000132135 100__ $$0(orcid)0000-0002-9123-304X$$aHoffrén, Raúl$$uUniversidad de Zaragoza
000132135 245__ $$aEvaluation of handheld mobile laser scanner systems for the definition of fuel types in structurally complex Mediterranean forest stands
000132135 260__ $$c2024
000132135 5060_ $$aAccess copy available to the general public$$fUnrestricted
000132135 5203_ $$aThe exposure of Mediterranean forests to large wildfires requires mechanisms to prevent and mitigate their negative effects on the territory and ecosystems. Fuel models synthesize the complexity and heterogeneity of forest fuels and allow for the understanding and modeling of fire behavior. However, it is sometimes challenging to define the fuel type in a structurally heterogeneous forest stand due to the mixture of characteristics from the different types and limitations of qualitative field observations and passive and active airborne remote sensing. This can impact the performance of classification models that rely on the in situ identification of fuel types as the ground truth, which can lead to a mistaken prediction of fuel types over larger areas in fire prediction models. In this study, a handheld mobile laser scanner (HMLS) system was used to assess its capability to define Prometheus fuel types in 43 forest plots in Aragón (NE Spain). The HMLS system captured the vertical and horizontal distribution of fuel at an extremely high resolution to derive high-density three-dimensional point clouds (average: 63,148 points/m2), which were discretized into voxels of 0.05 m3. The total number of voxels in each 5 cm height stratum was calculated to quantify the fuel volume in each stratum, providing the vertical distribution of fuels (m3/m2) for each plot at a centimetric scale. Additionally, the fuel volume was computed for each Prometheus height stratum (0.60, 2, and 4 m) in each plot. The Prometheus fuel types were satisfactorily identified in each plot and were compared with the fuel types estimated in the field. This led to the modification of the ground truth in 10 out of the 43 plots, resulting in errors being found in the field estimation between types FT2–FT3, FT5–FT6, and FT6–FT7. These results demonstrate the ability of the HMLS systems to capture fuel heterogeneity at centimetric scales for the definition of fuel types in the field in Mediterranean forests, making them powerful tools for fuel mapping, fire modeling, and ultimately for improving wildfire prevention and forest management.
000132135 536__ $$9info:eu-repo/grantAgreement/ES/DGA/S51-23R$$9info:eu-repo/grantAgreement/ES/MCIU/FPU18-05027
000132135 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000132135 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000132135 700__ $$0(orcid)0000-0002-8954-7517$$aLamelas, María Teresa$$uUniversidad de Zaragoza
000132135 700__ $$0(orcid)0000-0003-2615-270X$$aRiva, Juan de la$$uUniversidad de Zaragoza
000132135 7102_ $$13006$$2010$$aUniversidad de Zaragoza$$bDpto. Geograf. Ordenac.Territ.$$cÁrea Análisis Geográfico Regi.
000132135 773__ $$g7, 2 (2024), 59 [20 pp.]$$pFire$$tFire (Basel)$$x2571-6255
000132135 8564_ $$s13733654$$uhttps://zaguan.unizar.es/record/132135/files/texto_completo.pdf$$yVersión publicada
000132135 8564_ $$s2637526$$uhttps://zaguan.unizar.es/record/132135/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000132135 909CO $$ooai:zaguan.unizar.es:132135$$particulos$$pdriver
000132135 951__ $$a2024-03-01-14:50:18
000132135 980__ $$aARTICLE