Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Konrad J Wessels"'
Autor:
Penelope J Mograbi, Barend F N Erasmus, E T F Witkowski, Gregory P Asner, Konrad J Wessels, Renaud Mathieu, David E Knapp, Roberta E Martin, Russell Main
Publikováno v:
PLoS ONE, Vol 10, Iss 5, p e0127093 (2015)
Woody biomass dynamics are an expression of ecosystem function, yet biomass estimates do not provide information on the spatial distribution of woody vegetation within the vertical vegetation subcanopy. We demonstrate the ability of airborne light de
Externí odkaz:
https://doaj.org/article/26f72a45309646568828b3cc6cc10a7f
Publikováno v:
African Journal of Range & Forage Science. 37:1-17
Associated with the 2015/2016 El Nino, extreme drought occurred over the Lowveld of South Africa. The area includes the Kruger National Park (KNP). Significant die-offs of a mega herbivore species ...
Publikováno v:
SSTD
Earth observation data is collected by ever-expanding fleets of satellites including Landsat1-8, Sentinel1 & Sentinel2, SPOT1-7 and WorldView1-3. These satellites generate at spatial resolutions (pixel size) from 30m to 31cm and provide revisit rates
Publikováno v:
IGARSS
The remote sensing research community is grappling with methods to produce training data that are sufficiently representative of large areas to which they want to scale up their machine learning models for image classification. Effective generalizati
Autor:
Konrad J Wessels, Renaud Mathieu, Barend F.N. Erasmus, Ed T.F. Witkowski, Gregory P. Asner, Jolene T. Fisher, Penelope J. Mograbi
Publikováno v:
Land Degradation & Development. 30:190-201
LiDAR data collection was funded by the Andrew Mellon Foundation, the Council for Scientific and Industrial Research (CSIR) Strategic Research Panel and the Department of Science and Technology (DST). The CAO has been made possible by grants and dona
Publikováno v:
Remote Sensing; Volume 11; Issue 22; Pages: 2633
Remote Sensing, Vol 11, Iss 22, p 2633 (2019)
Remote Sensing, Vol 11, Iss 22, p 2633 (2019)
Namibia is a very arid country, which has experienced significant bush encroachment and associated decreased livestock productivity. Therefore, it is essential to monitor bush encroachment and widespread debushing activities, including selective bush
Publikováno v:
International Journal of Applied Earth Observation and Geoinformation. 67:20-29
Humans are transforming land cover at an ever-increasing rate. Accurate geographical maps on land cover, especially rural and urban settlements are essential to planning sustainable development. Time series extracted from MODerate resolution Imaging
Autor:
Russell Main, Renaud Mathieu, Konrad J Wessels, Barend F.N. Erasmus, Frans Van der Bergh, Laven Naidoo
Publikováno v:
Biodiversity & Ecology. 6:355-359
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 55:7165-7176
In this paper, we propose a new method for extracting features from time-series satellite data to detect land cover change. We propose to make use of the behavior of a deterministic nonlinear system driven by a time-dependent force. The driving force
Autor:
Penelope J. Mograbi, Ed T.F. Witkowski, Nicholas R. Vaughn, Barend F.N. Erasmus, Gregory P. Asner, Renaud Mathieu, Konrad J Wessels
Publikováno v:
Ecography. 40:1274-1284
Humans have played a major role in altering savanna structure and function, and growing land-use pressure will only increase their influence on woody cover. Yet humans are often overlooked as ecological components. Both humans and the African elephan