Výsledky vyhledávání - "J.-P. Dedieu"

Akademický článek

Pairing remote sensing and clustering in landscape hydrology for large-scale change identification: an application to the subarctic watershed of the George River (Nunavik, Canada)

Autor: E. Sicaud, D. Fortier, J.-P. Dedieu, J. Franssen

Publikováno v: Hydrology and Earth System Sciences, Vol 28, Pp 65-86 (2024)

For remote and vast northern watersheds, hydrological data are often sparse and incomplete. Landscape hydrology provides useful approaches for the indirect assessment of the hydrological characteristics of watersheds through analysis of landscape pro

Externí odkaz: https://doaj.org/article/cd9c1ad754c64f568b6825006d6ee80d

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Akademický článek

Potential of X-band polarimetric synthetic aperture radar co-polar phase difference for arctic snow depth estimation

Autor: J. Voglimacci-Stephanopoli, A. Wendleder, H. Lantuit, A. Langlois, S. Stettner, A. Schmitt, J.-P. Dedieu, A. Roth, A. Royer

Publikováno v: The Cryosphere, Vol 16, Pp 2163-2181 (2022)

Changes in snowpack associated with climatic warming has drastic impacts on surface energy balance in the cryosphere. Yet, traditional monitoring techniques, such as punctual measurements in the field, do not cover the full snowpack spatial and tempo

Externí odkaz: https://doaj.org/article/5c1b940ce50f4391b4f640b1fa9795c6

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Akademický článek

Changes in glacier equilibrium-line altitude in the western Alps from 1984 to 2010: evaluation by remote sensing and modeling of the morpho-topographic and climate controls

Autor: A. Rabatel, A. Letréguilly, J.-P. Dedieu, N. Eckert

Publikováno v: The Cryosphere, Vol 7, Iss 5, Pp 1455-1471 (2013)

We present time series of equilibrium-line altitude (ELA) measured from the end-of-summer snow line altitude computed using satellite images, for 43 glaciers in the western Alps over the 1984–2010 period. More than 120 satellite images acquired by

Externí odkaz: https://doaj.org/article/b96d493a763d4cada000d27839247681

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Akademický článek

Intercomparison of retrieval algorithms for the specific surface area of snow from near-infrared satellite data in mountainous terrain, and comparison with the output of a semi-distributed snowpack model

Autor: A. Mary, M. Dumont, J.-P. Dedieu, Y. Durand, P. Sirguey, H. Milhem, O. Mestre, H. S. Negi, A. A. Kokhanovsky, M. Lafaysse, S. Morin

Publikováno v: The Cryosphere, Vol 7, Iss 2, Pp 741-761 (2013)

This study compares different methods to retrieve the specific surface area (SSA) of snow from satellite radiance measurements in mountainous terrain. It aims at addressing the effect on the retrieval of topographic corrections of reflectance, namely

Externí odkaz: https://doaj.org/article/50d319901dfa4be88a09cdb2a78bd81b

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Akademický článek

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Autor: H. S. Negi, Marie Dumont, A. Mary, O. Mestre, Alexander A. Kokhanovsky, Pascal Sirguey, Yves Durand, J. P. Dedieu, H. Milhem, S. Morin, Matthieu Lafaysse

Publikováno v: The Cryosphere, Vol 7, Iss 2, Pp 741-761 (2013)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0607b71e8dad4d23ee6dc635309bae10
https://www.the-cryosphere.net/7/741/2013/

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Shifting mountain snow patterns in a changing climate from remote sensing retrieval

Autor: J. P. Dedieu, G. Shalpykova, Edoardo Cremonese, Giovanni Ravazzani, Martin Beniston, A. Lessard-Fontaine

Publikováno v: Science of The Total Environment
Science of the Total Environment, Vol. 493 (2014) pp. 1267-1279

Observed climate change has already led to a wide range of impacts on environmental systems and society. In this context, many mountain regions seem to be particularly sensitive to a changing climate, through increases in temperature coupled with cha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::277ff2782894191cdaa650e096fb5048
https://doi.org/10.1016/j.scitotenv.2014.04.078

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Snow cover estimation based on spectral unmixing

Autor: Jocelyn Chanussot, J.-P. Dedieu, Pascal Sirguey, Marie Dumont, Miguel Angel Veganzones, T. Masson, M. Dalla Mura

Publikováno v: WHISPERS

Spectral Unmixing is the most recent method used to recover the Snow Cover Fraction of an area, but it depends particularly on the relevance of the set of endmembers. This communication investigates different strategies for defining set of endmembers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2eceebec02cb5ca5b78fe3061512b51
https://doi.org/10.1109/whispers.2016.8071734

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