A tale of two quasi-linear convective systems, their mesoscale structure and moisture sources

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Modelling seasonal rainfall forecasts forced with improved predictive ocean surface temperature

Bureau of Meteorology Level 9, Seminar Room, 700 Collins St., Melbourne, Victoria, Australia

 Zaved Khan (Bureau of Meteorology). Modelling seasonal rainfall forecasts forced with improved predictive ocean surface temperature Seasonal rainfall forecasts are in high demand for users such as irrigators and water managers in decision making and risk management. Both statistical and dynamical models are widely used to generate probabilistic rainfall forecasts in advance for a season.... View Article

Seminar: Is there any evidence of a poleward expansion in the subtropical jet stream in either hemisphere?

Climate Change Research Centre (CCRC) 4th Floor, Matthews Building, UNSW, Kensington, NSW, Australia

Penny Maher (University of Utrecht) The tropics are expanding poleward at about 1 degree per decade in observations. The Hadley cell edge is one common measure of tropical expansion. One alternative method is the trend in the subtropical jet position. Unlike the Hadley cell edge, the observed trends in the subtropical jet position are much... View Article

Seminar: Energetic constraints on climate model errors in precipitation

Climate Change Research Centre (CCRC) 4th Floor, Matthews Building, UNSW, Kensington, NSW, Australia

Prof Christian Jakob (Monash University). Climate models have significant errors in precipitation globally, but in particular in the tropics. Most models overestimate annual mean tropical precipitation, with the largest errors occurring over the warm tropical oceans of the Western Pacific, Indian Ocean and Atlantic. In addition to the mean errors, there are significant shortcomings in... View Article

CLEX Tropical Variability Meeting: Jules Kajtar (University of Exeter / UTas)

Global mean surface temperature response to Interdecadal Pacific Oscillation and Atlantic Multidecadal Variability in CMIP5   Zoom details: The zoom meeting details are as follows: Join from PC, Mac, Linux, iOS or Android: https://unsw.zoom.us/j/825572965 Or iPhone one-tap:  16699006833,825572965# or 16465588656,825572965#   Or Telephone: Dial: +1 669 900 6833 (US Toll) or +1 646 558 8656 (US... View Article

Tropical Variability Meeting: Shreya Dhame (CLEX). Atmospheric response to long-term Indian Ocean Warming in CAM5

Please contact Dietmar or the theme leaders below to give a talk at the Tropical Variability meeting.   The zoom meeting details are as follows: Join from PC, Mac, Linux, iOS or Android: https://unsw.zoom.us/j/825572965 Or iPhone one-tap:  16699006833,825572965# or 16465588656,825572965#   Or Telephone: Dial: +1 669 900 6833 (US Toll) or +1 646 558 8656 (US Toll) Meeting ID:... View Article

Alberto Arribas (UK Met Office). A new paradigm for environmental research and exploitation?

During the last 70 years, solving physical equations on High Performance Computers has been the main workhorse of weather, climate and environmental research and prediction. It has been a fantastic ride,  substantially improving our understanding and boosting our forecasting capabilities. However, Moore's law is over, the energy cost of HPC is hardly affordable, and increasing... View Article

Ying-Ping Wang (CSIRO). Land-Atmosphere meeting – Variation of land carbon uptake: dominant drivers and their time-scale dependence

Ying-Ping Wang (CSIRO). Land-Atmosphere meeting - Variation of land carbon uptake: dominant drivers and their time-scale dependence. 3pm, Wednesday, June 19.   Join from PC, Mac, Linux, iOS or Android: https://unsw.zoom.us/j/670855742 Or iPhone one-tap:  16465588656,670855742# or 16699006833,670855742# Or Telephone: Dial: +1 646 558 8656 (US Toll) or +1 669 900 6833 (US Toll) Meeting ID: 670... View Article

Climatic Changes or Regional Human Activities? Lake Urmia Desiccation

Australian German Climate and Energy College Level 1, 187 Grattan St, Parkville, Victoria, Australia

(University of Melbourne).   Climatic Changes or Regional Human Activities? Lake Urmia Desiccation Description On the topic of climate change, there are two camps of politicians absolving themselves from responsibility. Politicians who deny or cast scepticism about the anthropogenic nature of climate change and/or its substantial implications; and those who blame climate change for the... View Article