Attribution of temperature and precipitation changes to greenhouse gases in northwest Iran

Zohrabi, Narges; Bavani, Alireza Massah; Goodarzi, Elahe; Eslamian, Seyed Saeid

doi:10.1016/j.quaint.2014.01.026

Cited by 16 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Precipitation trend analyses detected a declining temporal trend for annual total precipitation (Delju et al 2013;Fathian et al 2014) and an insignificant gradually decreasing trend in wet season precipitation (Tabari and Hosseinzadeh Talaee 2011;Delju et al 2013). Studies dealing with temperature have found a significant warming trend for both seasonal and annual time scales in the region (Delju et al 2013;Zohrabi et al 2014). Spatial patterns and regionalization of precipitation have been, however, understudied in the Lake Urmia Basin, despite the usefulness of delineation of homogeneous rainfall regions in water resources planning and management.…”

Section: Introductionmentioning

confidence: 99%

Regionalization of precipitation characteristics in Iran’s Lake Urmia basin

Fazel

Berndtsson

Uvo

et al. 2017

Theor Appl Climatol

View full text Add to dashboard Cite

Lake Urmia in northwest Iran, once one of the largest hyper saline lakes in the world, has shrunk by almost 90% in area and 80% in volume during the last four decades. To improve the understanding of regional differences in water availability throughout the region and to refine the existing information on precipitation variability, this study investigated the spatial pattern of precipitation for the Lake Urmia Basin. Daily rainfall time series from 122 precipitation stations with different record lengths were used to extract 15 statistical descriptors comprising 25 th percentile, 75 th percentile, and coefficient of variation for annual and seasonal total precipitation. Principal component analysis in association with cluster analysis identified three main homogeneous precipitation groups in the lake basin. The first sub-region (Group-1) includes stations located in the center and southeast, the second sub-region (Group-2) covers mostly northern and northeastern part of the basin, and the third sub-region (Group-3) covers the western and southern edges of the basin. Results of principal component (PC) and clustering analyses showed that seasonal precipitation variation is the most important feature controlling the spatial pattern of precipitation in the lake basin. The 25 th and 75 th percentiles of winter and autumn are the most important variables controlling the spatial pattern of the first rotated principal component explaining about 32% of the total variance. Summer and spring precipitation variations are the most important variables in the second and third rotated principal components, respectively. Seasonal variation in precipitation amount and seasonality are explained by topography and influenced by the lake and westerly winds that are related to the strength of the North Atlantic Oscillation. Despite using incomplete time series with different lengths, the identified sub-regions are physically meaningful.

show abstract

Section: Introductionmentioning

confidence: 99%

Regionalization of precipitation characteristics in Iran’s Lake Urmia basin

Fazel

Berndtsson

Uvo

et al. 2017

Theor Appl Climatol

View full text Add to dashboard Cite

show abstract

“…However, climate changes and global warming affect precipitation and extreme events such as floods and droughts in Iran (Eslamian et al 2011). During the past 40 years, the average decreasing rate of precipitation in the study area was 2.56 mm/year (Zohrabi et al 2014). Moreover, climate change can affect water resources, agriculture, environment, public hygiene, industry, and economy (Samadi et al 2009;Gohari et al 2013).…”

Section: Current Climate Change and Warming Facts In Iranmentioning

confidence: 99%

“…Hence, due to the increase in population and transportation in Iran, the level of GHG concentration and temperature variation in the urban atmosphere will increase in the future. The comparison between the past and future climatic trends of Iran showed that temperature would increased and precipitation decreased under the effect of greenhouse gases emissions (Zohrabi et al 2014). In this regard, temperature projection models show that temperature may increase between 1.12 and 7.87 °C by 2100 in Iran.…”

Section: Future Climate Under Ghg Emissions In Iranmentioning

confidence: 99%

An overview of climate change in Iran: facts and statistics

Daneshvar¹,

2019

View full text Add to dashboard Cite

Background: The climate change fact is intensive among the Middle East countries and especially Iran. Among the Middle East countries, Iran will experience an increase of 2.6 °C in mean temperatures and a 35% decline in precipitation in the next decades. In vice versa, Iran by total greenhouse gas (GHG) emissions nearly to 616,741 million tons of CO 2 is the first responsible country to climate change in the Middle East, and seventh in the world. The high-level contribution of Iran to emissions of GHG depends on a significant production of oil, gas, and rapid urbanization. The present study aimed to reveal an overview of climate change facts and statistics in Iran. Results:In this manuscript, the evidential facts on climate change were investigated in global, regional, and national scales. For this purpose, the main increasing annual temperature and GHG emissions were considered. Besides, the variations of meteorological characteristics such as surface temperature, total precipitation, and upward longwave radiation (ULR) were reviewed in Iran indicating an anomalous decrease in precipitation events and anomalous increase in ULR and temperature characteristics confirming the global warming/climate change effects. Afterward, the legislative agreements on climate change concerning international adoptions and conventions were reviewed from Rio 1992 to NY 2016. Conclusions:The results showed that further research and development should be considered the novel methods to explore renewable energy applications and to mitigate GHG emissions in order to overcome the increased risk of climate change effects. Technological affairs and international participants should support this target. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. ReferencesAbolverdi J, Ferdosifar G, Khalili D, Haghighi AK, Haghighi MA (2014) Recent trends in regional air temperature and precipitation and links to global climate change in the Maharlo watershed, Southwestern Iran. Meteorol

show abstract

“…Among Middle Eastern countries, Iran faces unprecedented climate change. For example, during the past 40 years, the precipitation decrease was 2.56 mm per year in northwest Iran [1]. An increase in temperature of at least 2 • C is expected in the next decades.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Soil Treatments with Hydrogel on the Performance of Drought-Sensitive and Tolerant Tree Species in a Semi-Arid Region

Tomášková

Svatoš

Macků

et al. 2020

Forests

View full text Add to dashboard Cite

Research Highlights: Although a number of forestry studies have found that hydrogel improves tree performance, studies that are located in semi-arid regions and that include a broad spectrum of tree species and the assessment of multiple physiological traits are lacking. Background and Objectives: The objective of the current study was to evaluate the effects of hydrogel treatments (with sawdust, organic fertilizer, compost, wheat straw, subsoil, or subsoil with a cobble cover) applied during planting on the survival, growth, and physiological traits of 20 tree species. Materials and Methods: In a field experiment (factorial design with seven treatments including a control, 20 species, and ten replicates) in a semi-arid part of Iran, we applied water alone (control) or water with hydrogel and other materials to recently planted samplings. We evaluated tree height, health, osmotic potential, and biochemical properties after 6 months and survival after 12 months. Results: Hydrogel treatment (regardless of other material) significantly improved the performance of drought-sensitive but not of drought-tolerant species. Conclusions: The benefits of hydrogel treatment are substantial for drought-sensitive species but are insignificant for drought-resistant species.

show abstract

Attribution of temperature and precipitation changes to greenhouse gases in northwest Iran

Cited by 16 publications

References 21 publications

Regionalization of precipitation characteristics in Iran’s Lake Urmia basin

Regionalization of precipitation characteristics in Iran’s Lake Urmia basin

An overview of climate change in Iran: facts and statistics

Effect of Different Soil Treatments with Hydrogel on the Performance of Drought-Sensitive and Tolerant Tree Species in a Semi-Arid Region

Contact Info

Product

Resources

About