Trends in temperature and growing season length in idaho-usa during the past few decades

Santos, Carlos Antônio Costa dos; Rão, Tantravahi Venkata Ramana; Olinda, Ricardo Alves de

doi:10.1590/0102-778620130002

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…In the same regions, Abatzoglou et al [55] observed an accelerated warming rate with linear trends for the 1970-2012 and 1980-2012 time periods of approximately 0.2 • C decade −1 . Temperature trends observed in this study are also consistent with Santos et al [56]. They used T max and T min temperatures data taken from 35 meteorological (weather) stations across Idaho, U.S. and observed that the difference between T max and T min is decreasing, indicating that the T min is increasing faster than the maximum air temperature.…”

Section: Time-supporting

confidence: 91%

Temporal Trend Analysis of Meteorological Variables and Reference Evapotranspiration in the Inter-mountain Region of Wyoming

Sharma

Nicholson

Bergantino

et al. 2020

Water

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Long-term trends in reference evapotranspiration (ETref) and its controlling factors are critical pieces of information in understanding how agricultural water requirements and water resources respond to a variable and changing climate. In this study, ETref, along with climate variables that directly and indirectly impact it, such as air temperature (T), incoming solar radiation (Rs), wind speed (u), relative humidity (RH), and precipitation (P), are discussed. All variables are analyzed for four weather stations located in irrigated agricultural regions of inter-mountain Wyoming: Pinedale, Torrington, Powell, and Worland. Non-parametric Mann−Kendall (MK) trend test and Theil–Sen’s slope estimator were used to determine the statistical significance of positive or negative trends in climate variables and ETref. Three non-parametric methods—(i) Pettitt Test (PT), (ii) Alexandersson’s Standard Normal Homogeneity Test (SNHT), and (iii) Buishand’s Range Test (BRT)—were used to check the data homogeneity and to detect any significant Trend Change Point (TCP) in the measured data time-series. For the data influenced by serial correlation, a modified version of the MK test (pre-whitening) were applied. Over the study duration, a statistically significant positive trend in maximum, minimum, and average annual temperature (Tmax, Tmin, and Tavg, respectively) was observed at all stations, except for Torrington in the southeast part of Wyoming, where these temperature measures had negative trends. The study indicated that the recent warming trends are much more pronounced than during the 1930s Dust Bowl Era. For all the stations, no TCPs were observed for P; however, significant changes in trends were observed for Tmax and Tmin on both annual and seasonal timescales. Both grass and alfalfa reference evapotranspiration (ETo and ETr) had statistically significant positive trends in at least one season (in particular, the spring months of March, April, and May (MAM) or summer months of June, July, and August (JJA) at all stations, except the station located in southeast Wyoming (Torrington) where no statistically significant positive trends were observed. Torrington instead experienced statistically significant negative trends in ETo and ETr, particularly in the fall months of SON and winter months of DJF. Over the period-of-record, an overall change of +26, +31, −48, and +34 mm in ETo and +28, +40, −80, and +39 mm in ETr was observed at Pinedale, Powell, Torrington, and Worland, respectively. Our analysis indicated that both ETo (−3.4 mm year−1) and ETr (−5.3 mm year−1) are decreasing at a much faster rate in recent years at Torrington compared to other stations. Relationships between climate variables and ETo and ETr on an annual time-step reveal that ETo and ETr were significantly and positively correlated to Tavg, Tmax, Rs, Rn, and VPD, as well as significantly and negatively correlated to RH.

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Section: Time-supporting

confidence: 91%

Temporal Trend Analysis of Meteorological Variables and Reference Evapotranspiration in the Inter-mountain Region of Wyoming

Sharma

Nicholson

Bergantino

et al. 2020

Water

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“…Lengthening of the growing season has potential for earlier sowing, multiple cropping, ensuring maturation and increasing agricultural production (Linderholm, 2006;Walther and Linderholm, 2006;Ci et al, 2016); in particular, it is beneficial for the seasonal yields of perennial crops such as alfalfa and other hay crops. However, the negative impacts of global climate change, including changing rainfall pattern, increasing transpiration and evaporation, increasing weeds, insects and diseases and favouring invasive species, should also be paid sufficient attention in the planning and management of sustainable agriculture and natural ecosystems (Santos et al, 2015;Ci et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Temporal and spatial variations of the thermal growing season in China during 1961–2015

Cui

Shi

2017

Meteorological Applications

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Based on the daily mean air temperature at 1863 meteorological stations over China from 1961 to 2015, the temporal and spatial tendencies in the growing season parameters (the start date of the growing season, GSS; the end date of the growing season, GSE; and the length of the growing season, GSL) for 0, 3, 5 and 10 °C temperature thresholds were investigated; the results showed that in the past 55 years GSL exhibited a significant extending trend at speeds of 1.5–5.0 days per 10 years in most areas of northwest China (NWC), north China (NC), northeast China (NEC) and western southwest China (SWC). The extension of GSL was attributed to an earlier GSS at a rate of 1.5–3.0 days per 10 years in most areas of NEC and NC and some parts of NWC and SWC, and a later GSE at speeds of 1.0–2.0 days per 10 years in most of NWC and northern SWC and some parts of NEC and northwestern NC. The extending trend of the GSL was prominent in northern and western China relative to southern China. The temporal variations in the regional average growing season parameters were different for four temperature thresholds and in six regions. In general, the regional GSL (GSS, GSE) was extended (advanced, delayed) continuously during 1961–2015 or had no significant trend before about 1980 and then extended (advanced, delayed) continuously. The temporal variations of the GSE were weaker than those of the GSS in most regions.

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Composition, characteristics and long-term variability of the freshwater microcrustacean fauna of the Faroe Islands

Novichkova

Chertoprud

Azovsky

2019

Journal of Natural History

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Trends in temperature and growing season length in idaho-usa during the past few decades

Cited by 3 publications

References 27 publications

Temporal Trend Analysis of Meteorological Variables and Reference Evapotranspiration in the Inter-mountain Region of Wyoming

Temporal Trend Analysis of Meteorological Variables and Reference Evapotranspiration in the Inter-mountain Region of Wyoming

Temporal and spatial variations of the thermal growing season in China during 1961–2015

Composition, characteristics and long-term variability of the freshwater microcrustacean fauna of the Faroe Islands

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