Abstract The frequency of climate extremes will change in response to shifts both mean and variability. These individual contributions, thus the fundamental mechanisms behind changes extremes, remain largely unknown. Here we apply probability ratio concept large-ensemble simulations attribute extreme events either or We show that increased occurrence monthly high-temperature is governed by a wa...

Extreme temperature events are projected to increase in frequency in a future climate. As successive extremes could occur more frequently, patches of vulnerable tundra vegetation were exposed to two consecutive heat waves (HWs) of 10 d each, with a 5-d recovery period in between. Surface temperatures during the HWs were increased approximately 6 degrees C using infrared irradiation sources. In ...

ROBERT J. ERHARDT: Approximate Bayesian Computing for Spatial Extremes. (Under the direction of Richard L. Smith.) Statistical analysis of max-stable processes used to model spatial extremes has been limited by the difficulty in calculating the joint likelihood function. This precludes all standard likelihood-based approaches, including Bayesian approaches. Here we present a Bayesian approach t...

Projections of changes in climate extremes are critical to assessing the potential impacts of climate change on human and natural systems. Modeling advances now provide the opportunity of utilizing global general circulation models (GCMs) for projections of extreme temperature and precipitation indicators. We analyze historical and future simulations of ten such indicators as derived from an en...

India has experienced extensive land cover and use change (LCLUC). However, there is still limited empirical research regarding the impact of LCLUC on climate extremes in India. Here, we applied statistical methods to assess how cropland expansion influenced temperature from 1982 2015 using a new dataset ECMWF Reanalysis V5 (ERA5) data. Our results show that during last 34 years, croplands west...

117 In this chapter we identify areas of research and activities that can improve our understanding of weather and climate extremes. Many of these research areas and activities are consistent with previous reports, especially the CCSP SAP 1.1 report, Temperature Trends in the Lower Atmosphere: Steps for Understanding and Reconciling Differences, on reconciling temperature trends between the sur...

increasing of wood demand is currently one of the most important problems in our society. different clones of populus nigra from salicacea as a native fast-growing species have a good potential for planting in wide scale. but because of the ecological differences in the field, especially. temperature alterations, segregation of the cold resistant clones in relation to in seedling stage establis...

Background and Aims: To evaluate the effect of temperature on wheat streak mosaic virus (WSMV) resistance phenotype, through total protein, phenol, and peroxidase activity in bread wheat, a factorial experiment was conducted using Adl-Cross (resistant) and Marvdasht (susceptible) cultivars. Materials and Methods: Results showed that incubation at 32C changed the gene expression for resistance ...