This paper describes the development of a variety of computer-based assessment opportunities, both formative and summative, that are available to a large first year biology class at The University of Sydney. These materials include: weekly quizzes; a mock exam; quiz sections in tutorials; and special self-assessment modules (SAMs). The weekly quiz is password protected and secure but the remain...

Two methods of grid based and image based modeling were put forward respectively to represent the landform of watersheds on the Loess Plateau, China. Many kinds of spatial data such as Digital Elevation Model (DEM), Remote Sensing (RS) images, and photos are utilized to establish the digital 3-D terrains of watersheds on the Loess Plateau, which provides 3-D virtual geographic environments for ...

Abstract Nocturnal bow echoes can produce wind damage, even in situations where elevated convection occurs. Accurate forecasts of potential tend to be more challenging for operational forecasters than daytime bows because incomplete understanding how interacts with the stable boundary layer. The present study compares differences warm-season, nocturnal echo environments which high intensity [&g...

Abstract Severe thunderstorms can have devastating impacts. Concurrently high values of convective available potential energy (CAPE) and storm relative helicity (SRH) are known to be conducive severe weather, so PROD = 1/2 × SRH been used indicate risk thunderstorms. We consider the extreme these three variables for a large area contiguous United States over period 1979–2015 use extreme-value t...

Abstract The frequency of European convective windstorms, environments in which they form, and their organizational modes remain largely unknown. A climatology is produced using 10 233 severe wind reports from the Severe Weather Database between 2009 2018. days have increased 50 yr −1 to 117 2018, because an increase reporting. highest occurred across central Europe, particularly Poland. Report...