Temporal dynamics of albedo and climate in the sparse forests of Zagros

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Temporal dynamics of albedo and climate in the sparse forests of Zagros. / Alibakhshi, Sara; Hovi, Aarne; Rautiainen, Miina.

julkaisussa: Science of the Total Environment, Vuosikerta 663, 01.05.2019, s. 596-609.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Bibtex - Lataa

@article{2fdd85ffc1114036ab6b8cadcc018db5,
title = "Temporal dynamics of albedo and climate in the sparse forests of Zagros",
abstract = "Land surface albedo is an important parameter affecting the climate locally and globally. A synthesis of current studies urgently calls for a better understanding of the impact of climate change on the surface albedo. The Middle East is expected to experience major climatic changes during the coming decades and has already undergone major losses in its vegetation cover. This study explores how climate change related disturbances, such as severe drought and fire events, influence albedo trends in the largest remaining forest area of the Middle East, the Zagros Mountains. We analyzed time series of albedo, Leaf Area Index (LAI), burn severity (dNBR), and the number of fire events all obtained from MODIS satellite images between 2000 and 2016, together with climatic data from 1950 to 2016. The Zagros area is continuously suffering from low precipitation, high temperatures, and evermore-frequent wildfire events. Our large-scale analysis revealed that albedo is linked to precipitation, number of fire events, dNBR, and LAI with the average correlation coefficients of -0.26, -0.50, 0.17, and -0.72, respectively. Using four study sites located in different parts of the Zagros area, we showed disturbances influence albedo differently. Drought condition resulted in a marginal increasing trend in albedo, whereas fire events resulted in a decreasing trend. This article is the first report linking climate change with albedo in Iran. (C) 2019 The Authors. Published by Elsevier B.V.",
keywords = "Albedo, Climate change, Fire and drought, LAI, Middle East, Zagros forest, DEFORESTATION, BISCOGNIAUXIA-MEDITERRANEA, LAND-COVER, KURDISTAN PROVINCE, DROUGHT, FIRE DETECTION ALGORITHM, WESTERN IRAN, SURFACE, BRANTII LINDL. FORESTS, SEVERITY",
author = "Sara Alibakhshi and Aarne Hovi and Miina Rautiainen",
year = "2019",
month = "5",
day = "1",
doi = "10.1016/j.scitotenv.2019.01.253",
language = "English",
volume = "663",
pages = "596--609",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS - Lataa

TY - JOUR

T1 - Temporal dynamics of albedo and climate in the sparse forests of Zagros

AU - Alibakhshi, Sara

AU - Hovi, Aarne

AU - Rautiainen, Miina

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Land surface albedo is an important parameter affecting the climate locally and globally. A synthesis of current studies urgently calls for a better understanding of the impact of climate change on the surface albedo. The Middle East is expected to experience major climatic changes during the coming decades and has already undergone major losses in its vegetation cover. This study explores how climate change related disturbances, such as severe drought and fire events, influence albedo trends in the largest remaining forest area of the Middle East, the Zagros Mountains. We analyzed time series of albedo, Leaf Area Index (LAI), burn severity (dNBR), and the number of fire events all obtained from MODIS satellite images between 2000 and 2016, together with climatic data from 1950 to 2016. The Zagros area is continuously suffering from low precipitation, high temperatures, and evermore-frequent wildfire events. Our large-scale analysis revealed that albedo is linked to precipitation, number of fire events, dNBR, and LAI with the average correlation coefficients of -0.26, -0.50, 0.17, and -0.72, respectively. Using four study sites located in different parts of the Zagros area, we showed disturbances influence albedo differently. Drought condition resulted in a marginal increasing trend in albedo, whereas fire events resulted in a decreasing trend. This article is the first report linking climate change with albedo in Iran. (C) 2019 The Authors. Published by Elsevier B.V.

AB - Land surface albedo is an important parameter affecting the climate locally and globally. A synthesis of current studies urgently calls for a better understanding of the impact of climate change on the surface albedo. The Middle East is expected to experience major climatic changes during the coming decades and has already undergone major losses in its vegetation cover. This study explores how climate change related disturbances, such as severe drought and fire events, influence albedo trends in the largest remaining forest area of the Middle East, the Zagros Mountains. We analyzed time series of albedo, Leaf Area Index (LAI), burn severity (dNBR), and the number of fire events all obtained from MODIS satellite images between 2000 and 2016, together with climatic data from 1950 to 2016. The Zagros area is continuously suffering from low precipitation, high temperatures, and evermore-frequent wildfire events. Our large-scale analysis revealed that albedo is linked to precipitation, number of fire events, dNBR, and LAI with the average correlation coefficients of -0.26, -0.50, 0.17, and -0.72, respectively. Using four study sites located in different parts of the Zagros area, we showed disturbances influence albedo differently. Drought condition resulted in a marginal increasing trend in albedo, whereas fire events resulted in a decreasing trend. This article is the first report linking climate change with albedo in Iran. (C) 2019 The Authors. Published by Elsevier B.V.

KW - Albedo

KW - Climate change

KW - Fire and drought

KW - LAI

KW - Middle East

KW - Zagros forest

KW - DEFORESTATION

KW - BISCOGNIAUXIA-MEDITERRANEA

KW - LAND-COVER

KW - KURDISTAN PROVINCE

KW - DROUGHT

KW - FIRE DETECTION ALGORITHM

KW - WESTERN IRAN

KW - SURFACE

KW - BRANTII LINDL. FORESTS

KW - SEVERITY

UR - http://www.scopus.com/inward/record.url?scp=85060904965&partnerID=8YFLogxK

U2 - 10.1016/j.scitotenv.2019.01.253

DO - 10.1016/j.scitotenv.2019.01.253

M3 - Article

AN - SCOPUS:85060904965

VL - 663

SP - 596

EP - 609

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -

ID: 31985772