Space-time detection of deforestation, forest degradation and regeneration in montane forests of Eastern Tanzania

Autor: Eliakim Hamunyela, Patric Brandt, Deo Shirima, Ha Thi Thanh Do, Martin Herold, Rosa Maria Roman-Cuesta

Publikováno v: International Journal of Applied Earth Observations and Geoinformation, Vol 88, Iss , Pp 102063- (2020)

Naturally isolated montane forests in East Africa are hotspots of biodiversity, often characterised by high species endemism, and are fundamental contributors to water services. However, they are located in areas highly suitable for agriculture, maki

Externí odkaz: https://doaj.org/article/f1fe202c84b943aa96a23ac3b0d951d8

Trends in Spring Phenology of Western European Deciduous Forests

Autor: Eliakim Hamunyela, Jan Verbesselt, Gerbert Roerink, Martin Herold

Publikováno v: Remote Sensing, Vol 5, Iss 12, Pp 6159-6179 (2013)

Plant phenology is changing because of recent global warming, and this change may precipitate changes in animal distribution (e.g., pests), alter the synchronization between species, and have feedback effects on the climate system through the alterat

Externí odkaz: https://doaj.org/article/00cddec08e3f469d9fc80266fbe13ef1

Monitoring Deforestation at Sub-Annual Scales as Extreme Events in Landsat Data Cubes

Autor: Eliakim Hamunyela, Jan Verbesselt, Sytze de Bruin, Martin Herold

Publikováno v: Remote Sensing, Vol 8, Iss 8, p 651 (2016)

Current methods for monitoring deforestation from satellite data at sub-annual scales require pixel time series to have many historical observations in the reference period to model normal forest dynamics before detecting deforestation. However, in s

Externí odkaz: https://doaj.org/article/502ab166635c42a88513f2c791519581

Monitoring loss of tropical forest cover from Sentinel-1 time-series: A CuSum-based approach

Autor: Frédéric Baup, Christophe Moisy, Bertrand Ygorra, T. Catry, Frédéric Frappart, Jean-Pierre Wigneron, Eliakim Hamunyela, S. Riazanoff

Publikováno v: International Journal of Applied Earth Observation and Geoinformation
International Journal of Applied Earth Observation and Geoinformation, Elsevier, 2021, 103, pp.1-19. ⟨10.1016/j.jag.2021.102532⟩
International Journal of Applied Earth Observation and Geoinformation, 2021, 103, pp.1-19. ⟨10.1016/j.jag.2021.102532⟩

International audience; The forest decline in tropical areas is one of the largest global environmental threats as the growth of both global population and its needs have put an increasing pressure on these ecosystems. Efforts are ongoing to reduce t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e75e9df39e7cd4e680adae5052bf7140
https://hal.inrae.fr/hal-03357778/document

Implementation of BFASTmonitor Algorithm on Google Earth Engine to Support Large-Area and Sub-Annual Change Monitoring Using Earth Observation Data

Autor: Martin Herold, Jan Verbesselt, Sabina Rosca, Eliakim Hamunyela, Andrei Mirt, Eric Engle, Fabian Gieseke

Publikováno v: Remote Sensing, Vol 12, Iss 2953, p 2953 (2020)
Remote Sensing 12 (2020) 18
Remote Sensing
Remote Sensing, 12(18)

Monitoring of abnormal changes on the earth’s surface (e.g., forest disturbance) has improved greatly in recent years because of satellite remote sensing. However, high computational costs inherently associated with processing and analysis of satel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14de02f3cacd25a46684eed773edd056
https://www.mdpi.com/2072-4292/12/18/2953