Seminars - Melbourne

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To schedule a CAWCR seminar, contact the seminar coordinators with the details and the proposed date.

Here are details of how to access the shared calendar in Outlook (internal use only) to view available seminar time slots.


CAWCR SEMINARS 2015

Date Time Title Speaker Affiliation
Wednesday 25th February 10:00AM Internal tools for accessing Bureau Australian climate data for research - present and future Brad Murphy BoM CODAS
Wednesday 11th February 10:00AM The role of coastal associated rainfall in the tropics Martin Bergemann Monash University
Wednesday 4th February 10:00AM New Climate Change Projections for Australia -- Overview and Key Messages Bertrand Timbal and Aurel Moise BoM CAWCR
Thursday 22nd January 11:15AM Heavy rainfall over Pakistan and northwest India: Influence of modulation of the large-scale circulation over the Indo-Pacific region Milind Mujumdar Indian Institute of Tropical Meteorology

The venue is the seminar room (Floor 9, east side) at 700 Collins Street, Docklands

Seminars are run typically with duration of 30 to 45 minutes + questions. Dates and times are shown. If you are a vistor to the Bureau, you need to register at reception in the foyer.

For further details contact the seminar coordinators



ABSTRACTS



Wednesday 25th February, 10:00am - 11:00am, Conference/Meeting Rooms, 9th floor east, 700 Collins St

Internal tools for accessing Bureau Australian climate data for research - present and future

Brad Murphy
BoM CODAS

TBA



Wednesday 11th February, 10:00am - 11:00am, Conference/Meeting Rooms, 9th floor east, 700 Collins St

The role of coastal associated rainfall in the tropics

Martin Bergemann
Monash University

Areas that are particularly poorly represented in GCMs are the tropical coastal regions. Therefore this study develops and applies an algorithm to objectively identify coast line affected precipitation. Pattern-recognition techniques are applied to the data to determine the occurrence and intensity of coastline-affected rainfall features. The effects of changing parameters in the algorithm are investigated. Having identified precipitation associated with coastlines, its climatological features and diurnal behaviour are studied. We find that a significant percentage of rainfall in tropical and sub-tropical coastal areas results from coastline effects. Furthermore the results suggest that major modes of climate variability, such as the Madden-Julia-Oscillation and the El NiƱouthern Oscillation have a strong effect on the existence of coastal precipitation features. We also identify large-scale variables favouring coastal precipitation and find that the large-scale state for detected rainfall differs from from the large-scale state for non-detected rainfall.



Wednesday 4th February, 10:00am - 11:00am, Conference/Meeting Rooms, 9th floor east, 700 Collins St

New Climate Change Projections for Australia -- Overview and Key Messages

Bertrand Timbal and Aurel Moise
BoM CAWCR

The CSIRO and Bureau of Meteorology have updated information about observed climate variability in Australia and projected changes over the 21st century. The projections are based on up to 40 of the latest climate model simulations, with confidence ratings for different variables, consistent with methods used by the Intergovernmental Panel on Climate Change (IPCC). This supersedes information released by CSIRO and the Bureau of Meteorology in 2007. Emphasis has been placed on providing projections data and information for use in planning and risk assessment within the natural resource management (NRM) sector. This research was funded by the Department of the Environment through the Planning for Climate Change Fund and is supported by co-funding from CSIRO and the Bureau of Meteorology. Four IPCC scenarios of greenhouse gas and aerosol emissions have been considered. The lower scenarios assume significant reductions in emissions, and lead to slower rates of climate change. The higher scenarios lead to faster climate change, and a greater range of possibilities for variables such as temperature, rainfall and sea level. This talk will present an overview of the project outcomes and key messages.



Thursday 22nd January, 11:15am - 12:15pm, Conference/Meeting Rooms, 9th floor east, 700 Collins St

Heavy rainfall over Pakistan and northwest India: Influence of modulation of the large-scale circulation over the Indo-Pacific region

Milind Mujumdar
Indian Institute of Tropical Meteorology

This study investigates the role of large-scale circulation shifts, induced by Indo-Pacific Sea Surface Temperature (SST) patterns, during heavy summer monsoon rainfall of 2010 over Indo-Pak region. The evolution of monsoon synoptic systems and mid-latitude atmospheric blocking associated with the heavy precipitation and floods over northwest Pakistan during strong La Nina event of 2010 has been investigated by several past studies. The anomalous westward shift of west-Pacific sub-tropical high, suppression of convection over Bay of Bengal and anomalous northward moisture transport from Arabian Sea inspired us to diagnose the role of remote and regional SST boundary forcings on the modulation of large-scale circulation over Indo-Pacific region.

The realistic response of observed SSTs in simulating 2010 Indo-Pak heavy rainfall anomalies, using a high resolution Atmospheric General Circulation Model, developed at the Laboratoire de Meteorologie Dynamique (LMDZ4; Z stands for zoom; from France), is intriguing. This realistic simulation response encouraged us to diagnose the distinct roles of Indian Ocean and Pacific SST anomalies by conducting additional simulation experiments using ENSO-related and ENSO-unrelated forcings.


A PDF copy of all the presented seminars can be found at the "Find Seminar Presentation Documents..." link at the top of the page (available to BoM staff only). Seminars for previous years can be found at the "Goto list of BMRC seminars for ..." site at the top of the page. In addition, a list of actual videos from some previous seminars is held in the library and can be found on the catalogue by entering Series: BMRC, Format: Video. If you would like to have a talk videotaped please contact the seminar coordinator. Note: as of 2005, it is standard practice for all seminars to be recorded as wmv movies, with the permission of the presenter.

If you would like to know more details of coordinating seminars (if, for example, you are hosting a visitor who will be giving a seminar and the regular seminar coordinator is not available), have a look at the document, "Instructions for CAWCR Seminar Coordinator"

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