Climate Change in the Br 163 Region: A Multiscale Analysis.
Vincent Dubreuil
- Fonction : Auteur
- PersonId : 4905
- IdHAL : vincent-dubreuil
- ORCID : 0000-0001-8383-805X
- IdRef : 057532974
Damien Arvor
- Fonction : Auteur
- PersonId : 8937
- IdHAL : damien-arvor
- ORCID : 0000-0002-3017-9625
- IdRef : 136950191
Beatriz M. Funatsu
- Fonction : Auteur
- PersonId : 5635
- IdHAL : beatriz-m-funatsu
- ORCID : 0000-0003-0448-1924
- IdRef : 223449210
Vincent Nédélec
- Fonction : Auteur
- PersonId : 853358
Résumé
Climatic resources, especially a long and regular rainy season, represented a favorable context for migrants moving along the BR163 road in Mato Grosso to develop agriculture. In return, this region has undergone profound landscape changes including deforestation, agricultural expansion and urbanization that led to climate changes via the modification of surface conditions (roughness, albedo, soil moisture). In this presentation, we propose a multi-scale analysis of these changes using in-situ and remote sensing data:
At the scale of Mato Grosso, the trends of changes in rainfall volumes and rainy season dates show sometimes divergent evolutions to which producers try to adapt, for example by multiplying farm dams and irrigation pivots.
At regional and local scales, significant differences are observed between forest and pasture or croplands, especially during the dry season.
At local scale, the extension of cities such as Alta Floresta, Sorriso or Sinop contribute to generate urban heat islands, well marked during the night and the dry season.
We show that, beyond the global effects of deforestation on the water and carbon cycles in the Amazon, the climate consequences of such geographic transformations are reflected first on local and regional scales and are particularly spectacular in northern Mato Grosso.
Format du dépôt | Notice |
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Type de dépôt | Communication dans un congrès |
Titre |
en
Climate Change in the Br 163 Region: A Multiscale Analysis.
|
Résumé |
en
Climatic resources, especially a long and regular rainy season, represented a favorable context for migrants moving along the BR163 road in Mato Grosso to develop agriculture. In return, this region has undergone profound landscape changes including deforestation, agricultural expansion and urbanization that led to climate changes via the modification of surface conditions (roughness, albedo, soil moisture). In this presentation, we propose a multi-scale analysis of these changes using in-situ and remote sensing data:
At the scale of Mato Grosso, the trends of changes in rainfall volumes and rainy season dates show sometimes divergent evolutions to which producers try to adapt, for example by multiplying farm dams and irrigation pivots.
At regional and local scales, significant differences are observed between forest and pasture or croplands, especially during the dry season.
At local scale, the extension of cities such as Alta Floresta, Sorriso or Sinop contribute to generate urban heat islands, well marked during the night and the dry season.
We show that, beyond the global effects of deforestation on the water and carbon cycles in the Amazon, the climate consequences of such geographic transformations are reflected first on local and regional scales and are particularly spectacular in northern Mato Grosso.
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Auteur(s) |
Vincent Dubreuil
1
, Damien Arvor
1
, Beatriz M. Funatsu
2
, Vincent Nédélec
1
1
LETG - Rennes -
Littoral, Environnement, Télédétection, Géomatique
( 3177 )
- Maison de la Recherche Place du Recteur Henri Le Moal 35043 RENNES CEDEX
- France
2
LETG -
Littoral, Environnement, Télédétection, Géomatique UMR 6554
( 14266 )
- Institut Universitaire Européen de la Mer - Technopôle Brest-Iroise - Place Nicolas Copernic 29280 Plouzané
- France
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Langue du document |
Anglais
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Vulgarisation |
Non
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Comité de lecture |
Oui
|
Invité |
Non
|
Audience |
Internationale
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Actes |
Non
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Titre du congrès |
2nd Austrian Conference on International Resource Politics : special session "BR-163: A hot spot of socio-environmental change in the Brazilian Amazon".
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Date début congrès |
2019-02
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Ville |
Innsbruck
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Pays |
Autriche
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URL du congrès ou éditeur |
https://www.uibk.ac.at/congress/resource-conference/program/abstracts_ss.html.en#Coy
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Domaine(s) |
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Projet(s) Européen(s) |
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