José Gómez-Dans

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Non-native, invasive grasses have been linked to altered grass-fire cycles worldwide. Although a few studies have quantified resulting changes in fire activity at local scales, and many have speculated about larger scales, regional alterations to fire regimes remain poorly documented. We assessed the influence of large-scale Bromus tectorum (hereafter(More)
1 Abstract— We present results from experiments carried out in the GB-SAR facility at the University of Sheffield to ascertain the role of polarimetric interferometry in crop height retrieval. To this end, a mature wheat canopy, grown in outdoor conditions, was reassembled inside the GB-SAR chamber and imaged at C-band using a two-dimensional scan. This(More)
Physically-based radiative transfer models (RTMs) help in understanding the processes occurring on the Earth's surface and their interactions with vegetation and atmosphere. However, advanced RTMs can take a long computational time, which makes them unfeasible in many real applications. To overcome this problem, it has been proposed to substitute RTMs(More)
1. ABSTRACT This study explores the capability of satellite remote sensing to detect temporal changes in northern Fennoscandian regions through the application of a temporal model of surface bidirectional reflectance. Remote sensing offers the potential to monitor changes over large areas and at locations of difficult access. Specifically in remote Arctic(More)
This paper presents a method to extract information on the impact of wildfire on vegetation canopies. A simple linear model is proposed with a 'generic' spectral model of the impacts of wildfire on vegetation canopies. This allows a term related to the projected proportion of a pixel affected by fire (fcc) to be estimated from measurements of pre-and(More)
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