Arctic and Subarctic cities and settlements depend of the economic, political and societal changes. In the Siberian arctic and subarctic territories as in Yakutia, the dynamics of urbanisation and un-urbanisation are strong. Abandoned mine’s tows, stable cities (Mirnyj), partially abandoned like Tiksi, fast urban growth and metropolisation in Yakut...
Arctic snow cover dynamics offer a changing face in terms of temporal duration andwater equivalent, due to recent climate change conditions (Callaghan et al., 2011; Lemke & Jacobi,2012). Indeed, the Arctic is now experiencing some of the most rapid and severe climate change onearth. In this context, innovative and improved methods are helpful to en...
Arctic snow cover dynamics offer a changing face in terms of temporal duration andwater equivalent, due to recent climate change conditions (Callaghan et al., 2011; Lemke & Jacobi,2012). Indeed, the Arctic is now experiencing some of the most rapid and severe climate change onearth. In this context, innovative and improved methods are helpful to en...
This paper assesses the effect of pansharpening process in classification of tropical crop and forest areas. Supervised classifications based on Support Vector Machine were adopted. Different pansharpening methods using bilinear interpolation technique have been used to merge very high spatial resolution Quickbird multispectral and panchromatic ima...
Du fait de son impact sur le climat urbain, le suivi temporel du bilan radiatif urbain Q^*, avec prise en compte de sa variabilité spatiale, est un axe de recherche en développement. Q^* est la différence entre l'éclairement (i.e., rayonnement incident) et l'exitance (rayonnement sortant) sur le domaine spectral qui englobe l'essentiel du rayonneme...
Du fait de son impact sur le climat urbain, le suivi temporel du bilan radiatif urbain Q^*, avec prise en compte de sa variabilité spatiale, est un axe de recherche en développement. Q^* est la différence entre l'éclairement (i.e., rayonnement incident) et l'exitance (rayonnement sortant) sur le domaine spectral qui englobe l'essentiel du rayonneme...
Congo basin is the world’s tropical forest outside of the Amazon. With an important biodiversity, this forest plays a central role in global warming. These forest divide up on six countries, one of which is Cameroon. Tropical Congo basin forests are a vital element in the economic development of these countries and are prone to spoilage. Agricultur...
Congo basin is the world’s tropical forest outside of the Amazon. With an important biodiversity, this forest plays a central role in global warming. These forest divide up on six countries, one of which is Cameroon. Tropical Congo basin forests are a vital element in the economic development of these countries and are prone to spoilage. Agricultur...
The Lake Chad is now one of the major territories of concentration of people in the central Sahel region. Since the beginning of the 21st Century, the strong human settlements, especially built-up area, have expanded as a spontaneous adaptation to the upsurge of border conflicts; the main purpose being the access to best lands for agriculture, catt...
The Lake Chad is now one of the major territories of concentration of people in the central Sahel region. Since the beginning of the 21st Century, the strong human settlements, especially built-up area, have expanded as a spontaneous adaptation to the upsurge of border conflicts; the main purpose being the access to best lands for agriculture, catt...
