A Sudden Change In Rainfall Characteristics In Amman, Jordan During The Mid 1950s

Smadi, Mohammad; Zghoul, Ahmed

doi:10.3844/ajessp.2006.84.91

Cited by 112 publications

(72 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To address this concern, the non-parametric Pettitt test was applied to identify the abrupt change point [44]. Pettitt test has been widely applied in detecting abrupt change points in climate factors and hydrologic processes [45][46][47][48][49]. It tests the null hypothesis H 0 : the time series follows the same distribution, against the alternative hypothesis H 1 : before and after time t, the two parts of the time series follow different distribution functions [44].…”

Section: Trend Analysismentioning

confidence: 99%

Responses of Natural Vegetation Dynamics to Climate Drivers in China from 1982 to 2011

Liu

Lei

2015

Remote Sensing

View full text Add to dashboard Cite

This study investigated the spatiotemporal variation of vegetation growth and the influence of climatic drivers from 1982 to 2011 across China using datasets from the Normalized Difference Vegetation Index (NDVI) and climatic drivers. Long term trends, significance and abrupt change points of interannual NDVI time series were analyzed. We applied both simple regression and multi-regression models to quantify the effects of climatic drivers on vegetation growth and compare their relative contributions. Results show that on average, the growing season NDVI significantly increased by 0.0007 year −1 , with 76.5% of the research area showed increasing NDVI from 1982 to 2011. Seasonally, NDVI increased at high rates during the spring and autumn while changed slightly during the summer. At a national scale, the growing season NDVI was significantly and positively correlated to temperature and precipitation, with temperature being the dominant factor. At regional scales, the growing season NDVI was dominated by increasing temperature in most forest-covered areas in southern China and dominated by precipitation in most grassland in northern China. Within the past three decades, the increasing trend of national mean NDVI abruptly changed in 1994, slowing down from 0.0008 year −1 to 0.0003 year −1 . To be regional specific, the growing season NDVI in forest covered southern China has accelerated together with temperature since mid 1990s, while parts of the grassland in northern China have undergone stalled NDVI trends corresponding to slowed temperature increment and dropped precipitation since around 2000. Typical region analysis suggested that apart from

show abstract

Section: Trend Analysismentioning

confidence: 99%

Responses of Natural Vegetation Dynamics to Climate Drivers in China from 1982 to 2011

Liu

Lei

2015

Remote Sensing

View full text Add to dashboard Cite

show abstract

“…The water consumption in the year of 2006 was about 160 m 3 /capita/y and it is expected to fall to 90 m3/capita/y in 2020, which is very low in comparison with the international water poverty level of 1000 m 3 /y (Barjenbruch and Alzboon, 2010). By the year of 2025, it is expected that Jordan will be in the category of having an absolute water scarcity (Smadi and Zghoul, 2006). The total water demand in the country is as almost twice that of the conventional water supply which includes the safe yield of all available groundwater and surface water resources (Dahamsheh and Aksoy, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…In rain-fed northern and central areas of higher elevation where wheat, barley, and other field crops such as olives, tobacco, lentils, barley, and chick-peas are. Rain-fed agriculture in Jordan is the most important mode of employment and food production (Smadi and Zghoul, 2006). Due to the fact of periodic drought and limited area, the rain-fed uplands did not support sufficient output of cereal crops to meet the domestic demands.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, a radical shift in the location of agricultural production, particularly of cereals, would be likely to occur (Hossell et al, 1996). Such impacts of climate change will affect the economic and social life (Smadi and Zghoul, 2006), and declining the economic development (Chhibber and Laajaj, 2008). Due to the importance of agriculture sector in food security and water balance, this study is conducted to evaluate the potential variation in climate change in the agricultural areas of Jordan.…”

Section: Introductionmentioning

confidence: 99%

“…The possible future impacts include variation in rainfall (Francis, 2001), disappearance of ice and snow on the mountainous areas (Ngaira, 2007), stress on plants and diversity (DECC, 2008), increase incidences of insect-borne infections (Smadi and Zghoul, 2006), fishing and human settlement and submerge of coastal areas (Ngaira, 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Climate change impact assessment on rainwater in Jordan

Dahamsheh

2018

Int. j. adv. appl. sci.

View full text Add to dashboard Cite

This article aims to investigate the possible trend in precipitation and temperature in the agricultural areas in Jordan. Six meteorological stations locate in the agricultural areas in Jordan were chosen to investigate the variation in precipitation, maximum and minimum temperature. In order to achieve accurate result, quality control was conducted for each station. Also the homogeneity test was conducted using Standard Normal Homogeneity Test, Pettitt and Von Neumann ratio tests. All stations passed the quality and homogeneity tests. Data were analyzed using the recommended software RClimDex to determine 27 climate indices. The obtained results indicated significant trend in many indices. The most significant trend was found for cool days, warm days, warm nights, cool nights, summer days, diurnal temperature range, and the tropical night indicators. Further studies to quantify the climate change in Jordan were recommended.

show abstract

Changes and trends in maximum, minimum and mean temperature series in Iran

Ghasemi

2015

Atmospheric Science Letters

View full text Add to dashboard Cite

The variations of Iran temperature is studied during 1961-2010. Mann-Kendall tests show a general dominating positive temperature trend over most parts of Iran with the rate of change varying from 0.09 to 0.38 ∘ C decade −1 . Also, the minimum temperature increase (0.34 ∘ C decade −1 ) is greater than maximum temperature (0.15 ∘ C decade −1 ). A more definite trend of warming occurs in summer and spring than winter and autumn. Moreover, the results show that the warm climate regions in Iran are warming at a higher rate than cold climate regions. Pettitt's test also suggesting the abrupt upward change in mean annual temperature, occurs in the late 1990s.

show abstract

A Sudden Change In Rainfall Characteristics In Amman, Jordan During The Mid 1950s

Cited by 112 publications

References 10 publications

Responses of Natural Vegetation Dynamics to Climate Drivers in China from 1982 to 2011

Responses of Natural Vegetation Dynamics to Climate Drivers in China from 1982 to 2011

Climate change impact assessment on rainwater in Jordan

Changes and trends in maximum, minimum and mean temperature series in Iran

Contact Info

Product

Resources

About