نتایج جستجو برای: minimum and mean daily air temperature tmax

تعداد نتایج: 16984209  

Journal: :Atmosphere 2023

Atmospheric reanalysis products offer high-resolution and long-term gridded datasets that can often be used as an alternative or a supplement to observational data. Although more accessible than typical data deemed fit for climate change studies, show biases resulting from assimilation approaches. Thus, thorough evaluation of the product over region metric study is critical. Here, we evaluate p...

Journal: :Journal of Arid Land 2021

The extreme temperature has more outstanding impact on ecology and water resources in arid regions than the average temperature. Using downscaled daily data from 21 Coupled Model Inter-comparison Project (CMIP) models of NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP) observation data, this paper analyzed changes temporal spatiotemporal variation extremes, i.e., maximum (Tmax...

Journal: :Tree physiology 1997
P A Schwarz T J Fahey T E Dawson

Net photosynthesis and stomatal conductance were measured in ten red spruce (Picea rubens Sarg.) saplings, growing near Ithaca, New York, throughout the early spring and late-fall growing periods. Gas exchange and daily minimum and maximum soil and air temperatures were also measured. Linear regression analysis showed that rates of net photosynthesis were positively correlated with both minimum...

2011
D. J. Rasmussen V. Naik L. W. Horowitz M. G. Schultz

We use long-term, coincident O3 and temperature measurements at the regionally representative US Environmental Protection Agency Clean Air Status and Trends Network (CASTNet) over the eastern US from 1988 through 2009 to characterize the surface O3 response to year-to-year fluctuations in weather, for the purpose of evaluating global chemistry-climate models. We first produce a monthly climatol...

2014
Y. Koketsu

The objective of this study was to examine interactions between climatic factors, parity, and weaning-to-first-mating interval (WMI) for total number of pigs born at subsequent parity (TPB) of female pigs serviced during 2 seasons. The present study analyzed records of 27,739 gilts and 127,670 parity records of sows in 95 Japanese herds; the records included females that were serviced between J...

2007
David B. Lobell

Trends in recent temperature observations and model projections of the future are characterized by greater warming of daily minimum (tmin) relative to maximum (tmax) temperatures. To aid understanding of how tmin and tmax differentially affect crop yields, we analyzed variations of regional spring wheat yields and temperatures for three irrigated sites in western North America that were charact...

2009
SHAWN P. SERBIN CHRISTOPHER J. KUCHARIK

Results from the generation of a multidecadal gridded climatic dataset for 57 yr (1950–2006) of daily and monthly precipitation (PTotal), maximum temperature (Tmax), and minimum temperature (Tmin) are presented for the important agricultural and forest products state of Wisconsin. A total of 176 climate stations were used in the final gridded dataset that was constructed at 8-km (5.09) latitude...

Journal: :پژوهش های حفاظت آب و خاک 0

nowadays artificial neural networks (anns) are being applied in several problems of water engineering where there is no clear relationship between effective parameters on the estimation of phenomenon. this research was used to measure aerodynamic data inside and outside greenhouse for estimating reference evapotranspiration in greenhouse by using anns. ann was used with perceptron multilayer st...

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