Spatial and temporal variability in extreme temperature and precipitation events in Inner Mongolia (China) during 1960–2017

Tong, Siqin; Li, Xiangqian; Zhang, Jiquan; Bao, Yuhai; Bao, Yu; Na, Li; Alu, Si

doi:10.1016/j.scitotenv.2018.08.262

Cited by 159 publications

(102 citation statements)

References 46 publications

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“…This typical diurnal warming pattern over the Himalaya seems to be a unique feature, which has been previously reported by Baidya et al (2008) and Shrestha et al (1999). In contrast, prominent warming of T min -based indices has been reported for the Tibetan plateau, inner Mongolia, indo-pacific regions, and whole globe (Alexander et al, 2006;Caesar et al, 2011;Donat et al, 2013;Shrestha et al, 2017;Ding et al, 2018;Tong et al, 2019). Furthermore, we noted that the magnitude of T max warming (0.04 CÁyear −1 ) detected over the 1980-2016 period in the present study is slightly lower than 0.06 CÁyear −1 as reported by Shrestha et al (1999) for the 1971-1994 period across Nepal.…”

Section: Consistency With Other Studies and Observed Impacts In Difsupporting

confidence: 76%

“…(). In contrast, prominent warming of T min ‐based indices has been reported for the Tibetan plateau, inner Mongolia, indo‐pacific regions, and whole globe (Alexander et al ., ; Caesar et al ., ; Donat et al ., ; Shrestha et al ., ; Ding et al ., ; Tong et al ., ). Furthermore, we noted that the magnitude of T max warming (0.04°C⋅year −1 ) detected over the 1980–2016 period in the present study is slightly lower than 0.06°C⋅year −1 as reported by Shrestha et al .…”

Section: Discussionmentioning

confidence: 99%

“…For instance, the greater Himalayan region of Pakistan (north of 35°N latitude) exhibits a summer cooling and a decrease in warm nights (Sheikh et al ., ; Hasson et al ., ), which contrasts with the general warming trend (Klein Tank et al ., ; Caesar et al ., ; Sheikh et al ., ). Likewise, prominent increase observed in maximum temperature over central and western Himalayan mountains (Shrestha et al ., ; Bhutiyani et al ., ; Kattel and Yao, ; Nayava et al ., ) is in direct contrast to prominent increase observed in minimum temperatures over South Asia, India, China, and Tibet in recent decades (Alexander et al ., ; Klein Tank et al ., ; Panda et al ., ; Ding et al ., ; Tong et al ., ). Furthermore, dependencies of extreme temperature trends with elevation and latitude have been noted in the region over the period 1971–2000 (Revadekar et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Rising mean and extreme near‐surface air temperature across Nepal

Karki

Hasson

Gerlitz

et al. 2019

Intl Journal of Climatology

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Owing to unique topographic and ecological diversity, central Himalayan state of Nepal is exposed to adverse impacts of climate change and associated disasters. However, countrywide historical assessment of mean and extreme temperature changes, a prerequisite for devising adequate adaptation strategies, is still lacking. Here, we present a comprehensive picture of mean and extreme temperature trends across Nepal over the 1980–2016 period, based on high‐quality daily temperature observations from 46 stations. Our results suggest that besides winter cooling in southern lowlands, the country features a widespread warming, which is higher for maximum temperature (~0.04°C⋅year−1) than for minimum temperature (~0.02°C⋅year−1), over the mountainous region than in valleys and lowlands and during the pre‐monsoon season than for the rest of the year. Consistently, we found a higher increasing trend for warm days (13 days⋅decade−1) than for warm nights (4 days⋅decade−1), whereas the rates of decrease for cold days and cold nights are the same (6 days⋅decade−1). Further investigations reveal that pronounced warming in maximum temperature over mountain regions can be attributed to less cloud cover and snowfall in recent decades during non‐monsoon seasons as a result of positive geopotential height anomalies and strengthening of anticyclonic circulations in the mid‐to‐upper troposphere. Similarly, increased stability of lower atmosphere during winter and post‐monsoon seasons caused prolonged and frequent periods of fog over lowlands, resulting in significant winter cooling there.

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Section: Consistency With Other Studies and Observed Impacts In Difsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rising mean and extreme near‐surface air temperature across Nepal

Karki

Hasson

Gerlitz

et al. 2019

Intl Journal of Climatology

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“…Winter season accounted for 8.33% of the total annual precipitation for the period 1980-1999. This ratio was increased to 11.74% for the period 2000-2015, which is mainly caused by more frequent winter precipitation extremes in the MP [53]. It could be the main reason why the Mongolian Plateau became wetter in winter than before.…”

Section: Drought Variations In Different Climatic Regions At the Seasmentioning

confidence: 92%

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

et al. 2019

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Continuous climate warming in the last few decades has led to global climate anomalies, resulting in frequent drought events in arid/semiarid regions with fragile and sensitive ecological environment. The Mongolian Plateau (MP) is located at the mid-latitude arid/semiarid climate region, which is deemed as the most sensitive region in response to global climate change. In order to understand the spatiotemporal characteristics of droughts in Mongolian Plateau under changing climate, we divided the study area into three climatic regions via Köppen climate classification. Then, the seasonal and annual drought trends were analyzed by standardized precipitation evaporation index (SPEI), which is a function of monthly mean temperatures, highest temperatures, lowest temperatures and precipitations, collected from the 184 meteorological stations from 1980 to 2015. Mann-Kendall (MK) test was employed to detect if there is an abrupt change of annual drought, while the empirical orthogonal function method (EOF) was adopted to investigate the spatiotemporal characteristics of droughts across the Mongolian Plateau. Results from MK test illustrated that the SPEI-12 exhibited statistically significant downward trends (a < 0.05) for all three climatic regions of the Mongolian Plateau. EOF spatial analysis indicated that Region III experienced the most severe drought from 1980 to 2015. During the 35 years period, an abrupt change of drought was detected in 1999. Before year 1999, the climate was relatively humid. However, the entire region became more arid after year 1999, reflected by remarkably increased frequency and intensity of drought. SPEI-3 revealed the trend of drought at seasonal scale. We found that drought became more severe in spring, summer, and fall seasons for the entire MP. However, winter became more humid. Different climate regions exhibited quite different drought seasonality: Region I experienced a severe arid trend in summer and fall. For Region II and III, summer became more arid. All three regions became more humid in winter season, especially for Region I, with the Sen's slope of 0.0241/a.

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“…The number of studies on climate extremes all over the world has risen sharply in recent years. Most of these studies are mainly focused on the trends of extremes, their attributes, and socioeconomic impacts, both globally and regionally, observed and projected [4][5][6][7][8][9][10][11][12][13][14]. There was a general perception that climate extremes have occurred more frequently in recent decades based on natural hazard records, as compiled by the insurance sector [15].…”

Section: Introductionmentioning

confidence: 99%

Changes in Precipitation and Drought Extremes over the Past Half Century in China

Liu

Shen

et al. 2019

Atmosphere

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Changes in climate extremes have become a hot issue in the research field of climate change recently. Many studies have reported that climate extremes have occurred more frequently and with increasing intensity in recent decades. In this study, thresholds of precipitation and drought extremes were determined by the cumulative distribution function, and their spatiotemporal changes over the past half-century in China were analyzed by relative change rate. The results show that: (1) precipitation extremes increased in all regions except North China, while increasing trends of drought extremes were detected in all regions except Northwest China and the Qing–Tibet Plateau; (2) the maximum change rates in frequency of precipitation extremes were found in Northwest China and the Qing–Tibet Plateau, with values of 16.13% and 8.12%, and the maximum change rates in frequency of drought extremes were in Southwest and Southeast China, whose increases in intensity of drought extremes were also the maximum; (3) variation in precipitation extremes showed a relatively mixed pattern with higher heterogeneity compared to that of drought extremes; and (4) changes in precipitation and drought extremes relate to mid-intensity, lower-intensity, and annual precipitation.

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Spatial and temporal variability in extreme temperature and precipitation events in Inner Mongolia (China) during 1960–2017

Cited by 159 publications

References 46 publications

Rising mean and extreme near‐surface air temperature across Nepal

Rising mean and extreme near‐surface air temperature across Nepal

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

Changes in Precipitation and Drought Extremes over the Past Half Century in China

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