Maria Fiorella
United States Forest Service
8 Papers
149 Citations
Maria Fiorella is an academic researcher from United States Forest Service. The author has contributed to research in topics: Thematic Mapper & Land use. The author has an hindex of 5, co-authored 8 publications. Previous affiliations of Maria Fiorella include Oregon State University.
Chat about Author
Papers
•Journal Article
An efficient and accurate method for mapping forest clearcuts in the Pacific Northwest using Landsat imagery
TL;DR: In this article, two variations of image differencing were compared, one based on unsupervised classification, repeated five times, using five sequential date-pairs of difference images between 1972 and 1993.
265
Two Decades of Carbon Flux from Forests of the Pacific Northwest
TL;DR: This article describes the modeling strategy and the results of the carbon flux modeling in forest of the Pacific Northwest region of the USA using the following topic areas: C flux modeling strategy, demonstration of modeled strategy, significance to regional and global carbon cycle, and resource management implications.
152
•Journal Article
Analysis of conifer forest regeneration using Landsat Thematic Mapper data
Maria Fiorella,William J. Ripple +1 more
TL;DR: In this article, the authors used Landsat Thematic Mapper (TM) data to evaluate young conifer stands in the western Cascade Mountains of Oregon and found that TM bands 1, 2, 3, 5, 6, and 7 were inversely correlated with the age (r >_ -0.80).
Aerial and satellite sensor detection and classification of western spruce budworm defoliation in a subalpine forest
Abstract: RESUMELa detection et la classification des patrons de defoliation par la tordeuse occidentale de l'epinette (Choristoneura occidentalis, Freeman) dans une foret subalpine de l'ouest de l'Oregon ont ete realisees a l'aide d'images video acquises a deux altitudes a partir d'un aeronef ultra leger et a l'aide d'images numeriques multibandes acquises par le capteur thematique de Landsat.L'analyse de texture des images video a donne lieu a une precision de classification de l'ordre de 78 % en reference avec un releve de terrain de la defoliation et de l'interception de lumiere du couvert forestier effectue sur 21 parcelles en septembre 1994. Les donnees acquises par le capteur thematique en 1993, a elles seules, ont permis d'obtenir des resultats de classification satisfaisants dans une proportion de 75 % pour quatre classes de dommages (aucun, leger, modere et severe) dans ces memes parcelles. La precision cartographique etait de l'ordre de 67 % d'apres les resultats d'une classification (K-moyennes) non dir...
54
Use of remote sensing to model land use effects on carbon flux in forests of the Pacific Northwest, USA.
David O. Wallin,Mark E. Harmon,Warren B. Cohen,Maria Fiorella,William K. Ferrell +4 more
- 01 Jan 1997
TL;DR: In this paper, the authors use a simple metamodel, in conjunction with satellite data, to quantify C flux from a 12,000-km2 forestland study area in Oregon, with values ranging from −4.7 to +15.8 Mg ha−1 yr−1.
11