Events Calendar

Terrestrial ecosystem productivity and phenology response

Date:
Friday, October 15, 2021
Time:
3:00 pm - 4:00 pm
Location:
Webinar on Zoom
Cost:
Free
Alemu Gonsamo

Terrestrial ecosystem productivity and phenology response to global change during the satellite era

Friday, October 15, 2021
3 pm - 4 pm
Zoom Format
Meeting ID: 920 1911 8555
Passcode: SPEAKER

Alemu Gonsamo
Assistant Professor, Tier II Canada Research Chair in Remote Sensing of Terrestrial Ecosystems
School of Earth, Environment & Society, McMaster University


Climate control on global vegetation productivity and seasonality has intensified in response to recent global warming. With increasing threats and pressure exerted onEarth’s terrestrial ecosystems, there are now greater demands for more quantitative, timely, and accurate information on their state, functioning, and responses to climate variability and change. Challenges remain in separating the long-term relative roles of natural climatic variation and anthropogenic forcing on vegetation productivity, and Earth system models do not always capture the observed impact of climate change. Satellite remote sensing offers an effective way of measuring and monitoring vast vegetated areas in a consistent manner. Therefore, integration of close-range, air-borne, and space-borne observations with statistical and physical models is essential for the retrieval of useful land surface variables at various spatial and temporal scales to attribute the observed impacts. In this talk, I will present the development and application of improved land remote sensing variables for global change studies. The particular focus will be on the remote sensing of plant productivity, and seasonality at regional and global scales. I will also address circumpolar vegetation dynamics in relation to climate variability and change, and their impacts on atmospheric CO2 seasonality using an improved satellite data product.

Alemu Gonsamo biography:

My research area is on ground, airborne, and satellite remote sensing of vegetation from the leaf level to the globe scale. I particularly focuson plant structural and photosynthetic traits,plant and carbon uptake phenology, and terrestrial ecosystem primary productivity and greenness. Using long-term global satellite observations, ground measurements and mechanistic models, I also study the impacts of climate change and variability on terrestrial ecosystems, and related feedbacks to the atmosphere through carbon cycle.

Part of the Department of Geography & Environment Speaker Series
Open to all interested individuals

Host:
Department of Geography
Contact:
Department of Geography
geoenvironment@uwo.ca
Event Type:


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