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ISAR Virtuaeolian Seminar Series

NEXT SEMINAR

Professor Greg Okin

Title: The EMIT (Earth surface MIneral dust source invesTigation) mission: imaging spectroscopy in support of atmospheric dust and climate research

Abstract: Launched July 2022, the purpose of the EMIT (Earth surface MIneral dust source invesTigation) mission is to better constrain the effect of mineral dust on atmospheric radiative forcing. It will accomplish this by mapping common minerals in dust source regions using an imaging spectrometer aboard the International Space Station. With ~7-nm spectral sampling across the reflected solar spectrum (380 – 2500 nm), EMIT spectra contain information about mineral composition, including ferric iron and clay minerals. This talk will describe EMIT, review the principles of mineral identification through spectroscopy, and discuss the application of these results for global radiative transfer modeling to better understand dust’s role in the Earth’s climate system.

Please register in advance for this Zoom meeting here:

https://otago.zoom.us/meeting/register/tJUvde2qqD0uH9xbjMryyixcxtoqLeqM0OCd

This seminar is scheduled for Wednesday November 9th at 12:00pm PST (UTC-8).



NEXT ISAR Virtuaeolian Seminar Series – November 9th 12pm PST (UTC-8) – Greg Okin : The EMIT mission: imagine spectroscopy in support of atmospheric dust and climate research.
Register here: https://otago.zoom.us/meeting/register/tJUvde2qqD0uH9xbjMryyixcxtoqLeqM0OCd

PREVIOUS SEMINARS

Dr. Martina Klose

Title: Modeling dust emission: insights and challenges

Abstract: By nature, dust models cannot predict dust emission perfectly, because they cannot resemble the land-surface, or the atmosphere, in all detail. However, in comparison with observations, differences obtained from model experiments can provide insights into aspects of modeled dust emission which are more or less uncertain. Here I will present results from using a dust modeling “laboratory”

Date : December 2 2021 at 11:00am CEST (UTC+2)

Professor Kerstin Schepanski

Title: Combining satellite observations, field experiments and model simulation to investigate the atmospheric dust cycle

Abstract: Mineral dust aerosol is a major contributor to the atmospheric aerosol burden. Knowledge on the life-cycle of atmospheric dust is crucial for understanding various aerosol-atmosphere interactions including these on the Earth’s radiation budget, cloud and precipitation formation processes, and bio-productivity ultimately modulating the carbon cycle and human wellbeing. The presentation will discuss results from research that makes complementary use of satellite data, field experiments and numerical modelling in order to improve our understanding of the atmospheric dust cycle, which is inevitable for assessing the climate system and its variability.

Date : October 22, 2021 at 11:00am CEST (UTC+2)

Marcio DaSilva, PhD student, Flinders University

Title: Post-fire dunefield changes and vegetation dynamics on Kangaroo Island, Australia

&

Duc Nguyen, PhD student, University of Otago

Title : Wind flow and sand transport though excavated foredune notches, New Zealand

Date : 16th September, 2021 at 10:30am BST (UTC+1)

Maike Nowatzki,

PhD student, School of Geography and the Environment, Oxford University

Title : Fantastic Dunes and How to Map Them

&

Ismael Kangueehi

PhD student, University of Stellenbosch

Title : Fractional solubility of trace metals in dust from one of the dustiest non-playa environment in the Namib Desert

Date : Thu, 15 Jul 2021 at 10:00 a.m. BST

Professor Zhiwei Xu

Title: Dune Bistability and Critical Transitions in Chinese Dunes during the Past Twelve Thousand Years.

Date : 9th June, 2021, at 4pm CST (UTC+8).

Professor Bruno Andreotti

Title: Open problems raised by aeolian sediment transport

Date : 26th May, 2021, at 11am local time (UTC+2).

Dr. Cécile Guieu, Senior Scientist

Title : Dust deposition and impacts in the Mediterranean Sea: results from the PEACET|IME oceanographic campaign

Date: 17th March, 2021

Andrew Gunn, PhD Candidate

Title : Mesoscale coupling between aeolian flow and form

Date: 19th January, 2021

Professor Doug Sherman

Title : Understanding wind-blown sands: six vexations

Date: 13th November, 2020