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.
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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
