Spatio-Temporal Analysis of Drought and Aridity in Gomti Basin

Sarma, Riki; Singh, Devendra

doi:10.18520/cs/v116/i6/919-925

Cited by 7 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many previous studies have used aridity indices in different regions, as they measure the degree to which a region's climate lacks effective and life-promoting moisture [7]. Spatial and temporal variations of several indices were analyzed for Bahrain [8], Bangladesh [9], Turkey [10][11][12][13], Greece [7], Romania [14][15][16][17], Ethiopia [18,19], Iran [20][21][22], Pakistan [23], IP [24][25][26], Iraq [27,28], Extremadura in southwestern Spain [29], Serbia [30][31][32], India [33,34], the Middle East and North Africa [35], Calabria in Southern Italy [36], and southeastern Europe [37]. However, these studies were conducted over historical periods and do not project potential shifts under future climate change scenarios.…”

Section: Introductionmentioning

confidence: 99%

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Andrade

Contente

Santos

2021

Water

View full text Add to dashboard Cite

The assessment of aridity conditions is a key factor for water management and the implementation of mitigation and adaptation policies in agroforestry systems. Towards this aim, three aridity indices were computed for the Iberian Peninsula (IP): the De Martonne Index (DMI), the Pinna Combinative Index (PCI), and the Erinç Aridity Index (EAI). These three indices were first computed for the baseline period 1961‒1990, using gridded observational data (E-OBS), and subsequently, for the periods 2011‒2040 (short range) and 2041‒2070 (medium range), using an ensemble of six regional climate model (RCM) experiments generated by the EURO-CORDEX project. Two representative concentration pathways (RCPs) were analyzed, an intermediate anthropogenic radiative forcing scenario (RCP4.5) and a fossil-intensive emission scenario (RCP8.5). Overall, the three indices disclose a strengthening of aridity and dry conditions in central and southern Iberia until 2070, mainly under RCP8.5. Strong (weak) statistically significant correlations were found between these indices and the total mean precipitation (mean temperature) along with projected significant decreasing (increasing) trends for precipitation (temperature). The prevalence of years with arid conditions (above 70% for 2041‒2070 under both RCPs) are projected to have major impacts in some regions, such as southern Portugal, Extremadura, Castilla-La Mancha, Comunidad de Madrid, Andalucía, Región de Murcia, Comunidad Valenciana, and certain regions within the Aragón province. The projected increase in both the intensity and persistence of aridity conditions in a broader southern half of Iberia will exacerbate the exposure and vulnerability of this region to climate change, while the risk of multi-level desertification should be thoroughly integrated into regional and national water management and planning.

show abstract

Section: Introductionmentioning

confidence: 99%

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Andrade

Contente

Santos

2021

Water

View full text Add to dashboard Cite

show abstract

“…Many previous studies have used aridity indices in different regions, as they measure the degree to which a region's climate lacks effective and life-promoting moisture [7]. Spatial and temporal variations of several indices were analyzed for Bahrain [8], Bangladesh [9], Turkey [10][11][12][13], Greece [7], Romania [14][15][16][17], Ethiopia [18,19], Iran [20][21][22], Pakistan [23], IP [24][25][26], Iraq [27,28], Extremadura in southwestern Spain [29], Serbia [30][31][32], India [33,34], the Middle East and North Africa [35], Calabria in Southern Italy [36] and southeastern Europe [37]. However, these studies were conducted over historical periods and do not project potential shifts under future climate change scenarios.…”

Section: Introductionmentioning

confidence: 99%

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Andrade¹,

Contente²,

Santos³

2021

Preprint

View full text Add to dashboard Cite

The assessment of aridity conditions is a key factor for water management and the implementation of mitigation and adaptation policies in agroforestry systems. Towards this aim three aridity indices were computed for the Iberian Peninsula (IP): the De Martonne Index (DMI), the Pinna Combinative Index (PCI), and the Erinç Aridity Index (EAI). These three indices were first computed for the baseline period 1961‒1990, using a gridded observational data (E-OBS), and, subsequently, for the periods 2011‒2040 (short-range) and 2041‒2070 (medium-range) using an ensemble of six Regional Climate Models (RCMs) experiments generated by the EURO-CORDEX project. Two Representative Concentration Pathways (RCPs) were analyzed, an intermediate anthropogenic radiative forcing scenario (RCP4.5) and a fossil-intensive emission scenario (RCP8.5). Overall, the three indices disclose a strengthening of aridity and dry conditions in central and southern Iberia until 2070, mainly under RCP8.5. Strong(weak) statistically significant correlations were found between these indices and the total mean precipitation (mean temperature) along with projected significant decreasing(increasing) trends for precipitation(temperature). The prevalence of years with arid conditions (above 70% for 2041‒2070 under both RCPs) are projected to have major impacts in some regions, such as southern Portugal, Extremadura, Castilla-La Mancha, Comunidad de Madrid, Andalucía, Región de Murcia, Comunidad Valenciana, and certain regions within the Aragón province. The projected increase in both the intensity and persistence of aridity conditions in a broader southern half of Iberia will exacerbate the exposure and vulnerability of this region to climate change, while the risk of multi-level desertification should be thoroughly integrated into regional and national water management and planning.

show abstract

Current Trends and Projections of Water Resources Under Climate Change in Ganga River Basin

Das

Goyal

2021

The Ganga River Basin: A Hydrometeorological Approach

View full text Add to dashboard Cite

Spatio-Temporal Analysis of Drought and Aridity in Gomti Basin

Cited by 7 publications

References 0 publications

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

Current Trends and Projections of Water Resources Under Climate Change in Ganga River Basin

Contact Info

Product

Resources

About