Evaluation of hot temperature extremes and heat waves in the Mississippi River Basin

Tavakol, Ameneh; Rahmani, Vahid; Harrington, John A.

doi:10.1016/j.atmosres.2020.104907

Cited by 41 publications

(17 citation statements)

References 83 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Only two stations located in the north-eastern part of the study area had a significant negative trend for both time periods. This area might be considered as part of the "warming hole" in the United States where temperature and extreme temperature events have downward trends [68][69][70][71][72] . Future changes in the occurrence of compound extreme hot and dry days during crop-growing seasons will negatively influence crop yield 73 .…”

Section: Resultsmentioning

confidence: 99%

Temporal and spatial variations in the frequency of compound hot, dry, and windy events in the central United States

Tavakol

Rahmani

Harrington

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

Simultaneous low humidity, high temperature, and high wind speeds disturb the water balance in plants, intensify evapotranspiration, and can ultimately lead to crop damage. In addition, these events have been linked to flash droughts and can play a critical role in the spread of human ignited wildfires. The spatial patterns and temporal changes of hot, dry, and windy events (HDWs) for two time periods, 1949 to 2018 (70-years) and 1969 to 2018 (50-years) were analyzed in the central United States. The highest frequencies of HDWs were observed at stations in western Kansas and west Texas. Annually, the highest number of events happened concurrently with the major heat waves and droughts in 1980 and 2011. Temporally, an overall decrease in the HDWs was significant in the eastern regions of North Dakota and South Dakota, and an upward trend was significant in Texas and the western part of the Great Plains. Significant trends in HDWs co-occurred more frequently with significant trends in extreme temperatures compared with low humidity or strong wind events. The results of this study provide valuable information on the location of places where HDWs are more likely to occur. The information provided could be used to improve water management strategies.

show abstract

Section: Resultsmentioning

confidence: 99%

Temporal and spatial variations in the frequency of compound hot, dry, and windy events in the central United States

Tavakol

Rahmani

Harrington

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Finally, although the biophysical model used in this study to simulate crop heat stress, it does not capture crop mortality. Future work that captures a more refined simulation of crop heat stress and its dependence on the availability of irrigation water 51 (used for cooling in addition to crop water demand) is warranted. Moreover, although beyond the scope of this work, a more realistic simulation of crop heat stress and its close dependence on the availability of irrigation water may be relevant to other studies.…”

Section: Discussionmentioning

confidence: 99%

Water rights shape crop yield and revenue volatility tradeoffs for adaptation in snow dependent systems

et al. 2020

View full text Add to dashboard Cite

Irrigated agriculture in snow-dependent regions contributes significantly to global food production. This study quantifies the impacts of climate change on irrigated agriculture in the snow-dependent Yakima River Basin (YRB) in the Pacific Northwest United States. Here we show that increasingly severe droughts and temperature driven reductions in growing season significantly reduces expected annual agricultural productivity. The overall reduction in mean annual productivity also dampens interannual yield variability, limiting yield-driven revenue fluctuations. Our findings show that farmers who adapt to climate change by planting improved crop varieties may potentially increase their expected mean annaul productivity in an altered climate, but remain strongly vulnerable to irrigation water shortages that substantially increase interannual yield variability (i.e., increasing revenue volatility). Our results underscore the importance for crop adaptation strategies to simultaneously capture the biophysical effects of warming as well as the institutional controls on water availability.

show abstract

“…The nonparametric Mann–Kendall (MK) test is used for trend detection, meanwhile, the magnitude change was calculated using the Sen's slope test. The MK and combined with Sens' slope have been widely applied in long‐term temperature extreme analysis around the world (Worku et al ., 2019; Niu et al ., 2020; Tavakol et al ., 2020). In the MK test, the null hypothesis indicates that there is no trend in the data.…”

Section: Methodsmentioning

confidence: 99%

Changes in temperature extremes and their relationship with ENSO in Malaysia from 1985 to 2018

Tan

Juneng

Tangang

et al. 2020

Intl Journal of Climatology

View full text Add to dashboard Cite

Understanding the changes in temperature extremes is important for managing and coping with the risks associated with regional climate change. However, the climatological characteristics of temperature extremes and their variabilities is still not adequately studies in Malaysia. This study evaluates the spatial and temporal variations of temperature extremes over Malaysia for the period 1985-2018. This study includes four phases: (a) collection, quality control and homogeneity analysis of temperature data; (b) general (TXmean, TNmean, TMmean and DTR), warm (TXx, TNx, TX90p and TN90p) and cool (TXn, TNn, TX10p and TN10p) temperature extreme indices calculations; (c) trend analysis of temperature extremes using the Mann-Kendall and Sens's slope test; and (d) analyses of correlations between temperature extremes and El Niño-Southern Oscillation (ENSO). The results indicate a warming of surface temperature across Malaysia, particularly in Peninsular Malaysia. In general, TXmean, TNmean and TMmean increased significantly at 5% significance level by 0.

show abstract

Evaluation of hot temperature extremes and heat waves in the Mississippi River Basin

Cited by 41 publications

References 83 publications

Temporal and spatial variations in the frequency of compound hot, dry, and windy events in the central United States

Temporal and spatial variations in the frequency of compound hot, dry, and windy events in the central United States

Water rights shape crop yield and revenue volatility tradeoffs for adaptation in snow dependent systems

Changes in temperature extremes and their relationship with ENSO in Malaysia from 1985 to 2018

Contact Info

Product

Resources

About